Patent Application
20220312764
Spray adjuvants are materials added to pesticides for the purpose of improving their efficacy or correcting spray application problems. 1-aminomethanamide dihydrogen tetraoxosulfate (AMADS) is such an adjuvant component having been used commercially for a number of years. There are well established limitations, however, associated with the use of AMADS for this purpose. These limitations include corrosivity, worker safety, compatibility, and cold temperature stability. We have surprisingly found that another type of aminomethanamide complex combined with a specific category of surfactants may also be used as a spray adjuvant.
U.S. Pat. No. 6,040,273 (273 patent) relates to compositions of matter comprising the reaction products of a carboxylic acid and a urea having the formula
where R1, R2, R3 and R4 are the same or different and are selected from the group consisting of hydrogen, substituted and unsubstituted alkyl, allyl, vinyl and alkoxyl groups having from 1-6 carbon atoms, substituted and unsubstituted phenyl groups and the halides. Preferably, the reaction product of the present invention is N,N′-diformylurea or N,N′-diacetylurea. These reaction products, e.g., diformylurea, have been found to produce significantly improved growth in a variety of agricultural products when applied to the seed, to the surrounding soil or to the foliage of the emerging plant. Because of the similarity in the carbon, nitrogen, oxygen structure of these reaction products with many biological compounds, it is believed that the reaction products of the present invention may find use in a variety of biological applications.
U.S. Pat. No. 10,405,551 describes an agricultural formula including at least one diacyl or diaryl urea, such as a N,N′-diformylurea, and at least metal complex, such as metal complexes of cobalt, nickel, silver or other metals, is applied to plants at physiologically sensitive times resulting in prolonged and complete ethylene reduction. This synergistic agricultural formula gives those skilled in the art the ability to regulate important phenotypical parameters that lead to a variety of important agronomic and horticulture traits which improve crop yield parameters leading beyond that of its individual components.
U.S. Publication No. 2019/0008155 discloses diacyl or diacyl urea being used in conjunction with a plant growth regulator. The plant growth regulator is required.
This new approach is based on diaminomethanal complexes with C1 to C3 carboxylic acids. Inorganic acids could be used in place of organic acids, as in AMADS, but are not preferred for this composition. The preferred composition utilizes diaminomethanalethanoate complexes (DAMALEX), which we have discovered addresses many of the limitations presented by the traditional AMADS-based adjuvants referred to earlier.
The complexes are prepared by mixing diaminomethanal (CAS #57-13-6)
directly with C1 to C3 carboxylic acids in a water solution. The carboxylic acid to diaminomethanal ratio by weight % ranges from 90%-10% to 10%-90% with the preferred ratio being about 75% carboxylic acid to about 25% diaminomethanal or a ratio by weight % being about 50% carboxylic acid to about 50% diaminomethanal. A wide range of associations are likely created in the complex depending on variations in these ratios.
The invention also relates to using the composition with herbicides, fungicides, insecticides, defoliants, adjuvants, fertilizer and plant regulators. The composition can also be practiced without a plant regulator.
The invention may be applied to the soil surrounding the seed and/or emerging plant. When so applied, it is suggested that the solution be applied at a rate of about 1-100 grams of diformylurea or other reaction product per acre. Still another alternative is the application of such an aqueous solution to the foliage of the plant, preferably at the three leaf growth stage, at a rate of about 1-100 grams of diformylurea or other reaction product per acre. When applied to the foliage, those skilled in the art may include a conventional vegetable oil and surfactant in the solution to improve the retention of the active ingredient on the plant surfaces so that it may be more readily absorbed.
Embodiment 1 of the invention is a composition comprising water and diaminomethanal complexes with C1 to C3 carboxylic acids wherein the carboxylic acid to diaminomethanal ratio by weight % ranges from 90%-10% to 10%-90%.
Embodiment 2 of the invention is the composition of the embodiment 1, which further comprises a surfactant.
Embodiment 3 of the invention is the composition of the embodiment of 2, wherein the surfactant is present in an amount from 5 to 50% by weight.
Embodiment 4 of the invention is the composition of the embodiment of 2 or 3, wherein the surfactant is present in an amount from 5 to 20% by weight.
Embodiment 5 of the invention is the composition of the embodiment 2, 3, or 4 wherein the surfactant is fatty amine alkoxylate.
Embodiment 6 of the invention is the composition of the embodiment of 2, 3, 4 or 5, wherein the surfactant is fatty amine is selected from the formula
wherein R is the fatty amine group containing from 8 to 22 carbon atoms and moles of alkoxylation (m+n) are 5-20.
Embodiment 7 of the invention is the composition of any of the embodiments of 1 to 6 which further comprises a further a corrosion inhibitor.
Embodiment 8 of the invention is the composition of any of the embodiments 1 to 7, wherein with the ratio being about 70 to 80% carboxylic acid to about 20 to 30% diaminomethanal.
Embodiment 9 of the invention is the composition of any of the embodiments 1 to 8, wherein with the ratio being about 75% carboxylic acid to about 25% diaminomethanal.
Embodiment 10 of the invention is the composition of any of the embodiments 1 to 8, wherein with the ratio being about 50% carboxylic acid to about 50% diaminomethanal.
Embodiment 11 of the invention is the composition of any of the embodiments 1 to 10, wherein the carboxylic acid is C2.
Embodiment 12 of the invention is the composition of any of the embodiments 1 to 11, wherein the composition does not contain a plant regulator.
Embodiment 13 of the invention is a process to produce diaminomethanal complexes which comprises mixing diaminomethanal with C1 to C3 carboxylic acids in a water solution and the carboxylic acid to diaminomethanal is in a molar ratio ranges from 1:9 to 9:1.
Embodiment 14 of the invention is the process of the embodiment 13, wherein the ratio of the carboxylic acid to diaminomethanal molar ratio ranges from about 3:1.
Embodiment 15 of the invention is a fungicide comprising the composition as in any of the embodiments 1-12.
Embodiment 16 of the invention is an insecticide comprising the composition as in any of the embodiments 1-12.
Embodiment 17 of the invention is a herbicide comprising the composition as in any of the embodiments 1-12.
Embodiment 18 of the invention is a fertilizer comprising the composition as in any of the embodiments 1-12.
Embodiment 19 of the invention is a process to treat a plant which comprises applying the composition as in any of the embodiments 1-12 to the soil.
Embodiment 20 of the invention is a process to treat a plant which comprises applying the composition as in any of the embodiments 1-12 to the plant's surface.
Embodiment 21 of the invention is the process of embodiment of 19 or 20, wherein the solution is applied by spraying.
Embodiment 22 of the invention is the process of embodiments of 19 or 20, wherein the solution is applied at a rate of about 1-100 grams of diaminomethanal complexes with C1 to C3 carboxylic acids.
Embodiment 23 of the invention is a spray adjuvant comprising the composition as claimed in claim 1, and at least one component selected from the group consisting of:
(a) vegetable oils;
(b) fatty acids and blends thereof;
(c) esterified fatty acids or blends thereof;
(d) saponified fatty acids or blends thereof;
(e) N,N-dimethylamide of the formula
RCON(CH3)2
wherein R is an alkyl chain derived from fatty acids having about 6 to about 18 carbon atoms;
(f) polybutenes of the following formula
where n is a number from about 1 to about 50;
(g) spray oils having an UR value from about 85% to 100;
(h) surfactants;
(i) buffering agents; or
(j) a mixture of (a)-(i).
Embodiment 24 of the invention is a spray adjuvant comprising the composition as in any of embodiments 1-12 and a surfactant in an effective amount to provide emulsification of said composition and optionally a buffering agent in an amount sufficient to reduce the pH to below about 7.
Embodiment 25 of the invention is a spray adjuvant of embodiment 23 comprising at least one component (a)-(g) and a surfactant in an effective amount to provide emulsification of said composition and optionally a buffering agent in an amount sufficient to reduce the pH to below about 7.
The complexes are prepared by mixing diaminomethanal (CAS #57-13-6)
directly with C1 to C3 carboxylic acids in a water solution. The carboxylic acid to diaminomethanal ratio by weight % ranges from 90 to 10% which includes all the numbers between: 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11 or 10% to 10%-90% including all the numbers there between and any of the decimals there between. This would include about 70 to 80% carboxylic acid to about 20 to 30% diaminomethanal and the ratio being about 75% carboxylic acid to about 25% diaminomethanal. Also included is the ratio being about 50% carboxylic acid to about 50% diaminomethanal.
A wide range of associations are likely created in the complex depending on variations in these ratios.
We have found that when using a combination of these components, valuable advantages are provided to fungicides, insecticides, and herbicides when they are applied in a spray application.
The following optional ingredients can be included in the composition: surfactants, corrosion inhibitors, pH reducer, macronutrients, micronutrients, buffers, crystallization inhibitors, viscosity modifiers, suspending agents, dyes, anti-oxidants, foaming agents, light absorbers, mixing auxiliaries, antifoams, complexing agents, neutralizing or pH-modifying substances and fragrances, wetting agents, take-up enhancers, dispersants, thickeners, antifreezes or microbicides.
The optional ingredients can be present in an effective amount up to 50% weight. Up to 50% includes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 and 50% by weight. This would also include decimal points between these numbers.
If a surfactant is present it must be present in an effective amount, preferably 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 10, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 and 50% by weight. Surfactants include but are not limited to:
a) fatty amine alkoxylate, preferably selected from the formula
wherein R is the fatty amine group containing from 8 to 22 carbon atoms and moles of alkoxylation (m+n) are 5-20, where the range 5 to 20 includes 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20,
b) sorbitan fatty acid ester,
c) polyethoxylated derivative of a sorbitan fatty acid ester,
d) fatty alkanolamides of the formula
wherein R is an alkyl group having about 6 to about 25 carbon atoms; R′ and R″ independently of one another are selected from the group consisting of hydrogen, —CH2CH2OH or
e) peg esters of the formula
wherein R is a fatty alkyl having from about 2 to about 25 carbon atoms, R′ is a fatty alkyl having from about 2 to about 25 carbon atoms or H and m is a number from 1 to about 100,
f) silicone surfactants of the formula
wherein R and R′ independently from one another are hydrogen, alkyl having from 1 to about 20 carbon atoms, preferably 1 to 4 carbon atoms or an alkyl ester group having 1 to 20 carbon atoms, preferably 1 to 4 carbon atoms, x is a number from about 1 to about 100, preferably from about 1 to about 5, y is a number from about 1 to about 5, a is a number from about 3 to about 25, b is a number from about 0 to about 25, n is a number from about 2 to about 4 and
g) ethoxylated fatty acids
wherein R is an alkyl group having from about 6 to about 25 carbon atoms, n is a number from 1 to about 100,
h) alkyl ethoxylates
RO(CH2CH2O)xH
wherein R is an alkyl group having from about 1 to about 50 carbon atoms and x is a number from 1 to about 100,
i) alkylphenol ethoxylates
wherein R is H or an alkyl having from about 1 to about 20 carbons, R′ is H or an alkyl having from about 1 to about 20 carbons and n is a number from 1 to about 100,
j) polypropylene glycols
wherein n is a number from 1 to about 100,
k) tristyrylphenol alkoxylates,
l) amine ethoxylates
wherein x and y independently of one another are a number from about 1 to about 100 and R is an alkyl having from 1 to about 25 carbon atoms,
n) alkylaryl polyethoxy phosphate ester,
o) alkylaryl polyethoxy carboxylate ester,
p) tristyrylphenol alkoxylate phosphate esters,
q) tristyrylphenol alkoxylate carboxylate esters,
r) Phosphate esters of block copolymers of ethylene and propylene oxide or
s) alkylpolyglucosides.
Corrosion inhibitors include, but are not limited to 1,3 Diethylthiourea (DTU), N,N-Diemthylthiourea (DMTU), Phenylthiourea (PTU) and Laurhydrazide N-propanone.
A pH reducer can be used to lower the pH of the composition. The pH reducer can be any acid such as an organic acid, such as but not limited to citric acid or carboxylic acid or Essence 6 from Helena Agri-Enterprises LLC (Helena). Essence 6 is a concentrated organic acid complex. Its low pH, clear amber liquid formulation will also clear drip irrigation lines. Essence 6 contains Helena's NutrAsyst Formulation Technology (NFT), a high-quality blend of organic acids that is designed to improve the performance of liquid fertilizers. About 2 quarts per acre.
The composition can contain micronutrients such as, but not limited to a water-soluble salt of boron, iron, manganese, magnesium, copper or zinc.
The inventive composition can also be used in an adjuvant in a fertilizer composition.
An adjuvant composition can comprise:
a composition comprising water and diaminomethanal complexes with C1 to C3 carboxylic acids wherein the carboxylic acid to diaminomethanal ratio by weight % ranges from 90%-10% to 10%-90%, and at least one component selected from the group consisting of:
(a) vegetable oils;
(b) fatty acids and blends thereof;
(c) esterified fatty acids or blends thereof;
(d) saponified fatty acids or blends thereof;
(e) N,N-dimethylamide of the formula
RCON(CH3)2
wherein R is an alkyl chain derived from fatty acids having about 6 to about 18 carbon atoms;
(f) polybutenes of the following formula
where n is a number from about 1 to about 50;
(g) spray oils having a unsulfonated residence (UR) value from about 85% to 100;
(h) surfactants;
(i) buffering agents; or
(j) a mixture of (a)-(i).
The at least one component can be a surfactant in an effective amount to provide emulsification of said composition and optionally a buffering agent in an amount sufficient to reduce the pH to below about 7.
The spray adjuvant comprising the composition as claimed in claim 1 and a surfactant in an effective amount to provide emulsification of said composition and optionally a buffering agent in an amount sufficient to reduce the pH to below about 7.
The buffering function could be performed by some of the oil or surfactant components.
The spray oils utilized in this composition do not need to have an UR value and include at least one of the following:
1. Vegetable oils:
Such as, but not limited to vegetable seed oil or a mixture of vegetable seed oils, as they are known in the agricultural industry, crop seed oils which are produced from the particular crop from which their name is derived. Included in the vegetable oils suitable for the compositions of the present invention are cotton seed oil, canola, rapeseed, peanut oil, sunflower oil, linseed oil, safflower oil, soybean oil, corn oil, olive oil, coconut oil, tall oil or other seed oils and blends of the above oils such as cotton seed oil plus soybean oil; cotton seed oil plus peanut oil; cotton seed oil plus olive oil; corn oil plus linseed oil; corn oil plus soybean oil; as well as blends of any two or more of the above disclosed vegetable oils. The vegetable oils can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 80 to about 99%.
2. Fatty acids and blends thereof:
Such as, but not limited to saturated and unsaturated fatty acids of about 6 to about 18 carbon atoms. The fatty acids and blends can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 80 to about 99%. The fatty acids can be used without a buffering agent when they reduce the pH of the solution to about 7 or below. The fatty acids can be used without a buffering agent when they reduce the pH to below about 7.
3. Esterified fatty acids or blends thereof:
Such as, but not limited to saturated and unsaturated esters of about 6 to about 18 carbon atoms. The esterified fatty acids can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 50 to about 80%. The esterified fatty acids may also be derived from any of the vegetable oils previously mentioned.
The esterified fatty acids can be used without a buffering agent when they reduce the pH of the solution to about 7 or below. The esterified fatty acids can be used without a buffering agent when they reduce the pH to below about 7.
4. Saponified fatty acids or blends thereof:
Such as, but not limited to saturated and unsaturated soaps of about 6 to about 18 carbon atoms. The saponified fatty acids can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 50 to about 80%. The saponified fatty acids may also be derived from any of the vegetable oils previously mentioned. The saponified fatty acids can be used without a buffering agent when they reduce the pH of the solution to about 7 or below. The saponified fatty acids can be used without a buffering agent when they reduce the pH to below about 7.
5. N,N dimethylamides of the following formula:
R—CO—N(CH3)2
wherein R is an alkyl chain derived from fatty acids having about 6 to about 18 carbon atoms. The N,N dimethylamides can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 80 to about 99%.
The polybutenes that can be used are of the following formula
where n is a number from about 1 to about 50. The polybutenes can be present in an amount from about 1 to about 99%, preferably from about 50 to about 99% and most preferably from about 80 to about 99%.
7. α or β pinene.
9. d-limonene.
10. Jojoba bean oil.
11. Mixture of at least one of 1-10 above.
These 10 groups of oils can be a portion of the spray oil or the entire spray oil.
The preferred buffering agents include, but are not limited to,
a) alkylaryl polyethoxy phosphate ester,
b) C1-C6 carboxylic acids,
c) C1-C6 dicarboxylic acids,
d) phosphoric acid,
e) citric acid,
f) glutaric acid,
g) gluconic acid,
h) lactic acid,
i) glycolic acid,
j) acrylic acid,
k) carboxylated alcohol ethoxylate, preferably of the formula
R—O(CH2CH2O)xH
R is a carboxylic acid having from 1 to about 25 carbon atoms and x is from 1 to about 20 moles ethylene oxide,
l) ethoxylated alkylaryl phosphate esters;
m) ethoxylated alkylphenol carboxylate esters;
n) tristyrylphenol alkoxylate phosphate esters;
o) tristyrylphenol alkoxylate carboxylate esters;
p) fatty acids and blends thereof and
q) phosphate esters of block copolymers of ethylene and propylene oxide.
The composition can be used for plants such as, but not limited to grass crops, turf crops, cucurbit crops, brassica crops, solanaceae crops, bush berries, citrus, stone fruits, nuts or other crops.
Grass crops include but are not limited to barley, maize (corn), oats, rice, rye, sorghum, wheat, millet, sugar cane or bamboo.
Turf crops include but are not limited to Bermuda grass, St. Augustine grass, Zoysia grass, Kentucky bluegrass or Perennial ryegrass.
Cucurbit crops include but are not limited to pumpkin, squash, zucchini, cucumber, watermelon or gourd.
Brassica Crops include but are not limited to cabbage, cauliflower, broccoli, mustard, brussel sprouts, turnips/turnip greens, collards, kale or bok Choy.
Solanaceae crops include but are not limited to tomatoes, tomatillos, eggplant, potatoes, goji berries, tobacco, peppers (bell peppers, chili peppers, paprika, tamales, tomatillos, pimentos, cayenne, etc).
Bush berries, such as, but not limited to, strawberry, blueberry, blackberry, raspberry, mulberry, elderberry, red currants, white currants, and black currents.
Citrus, such as, but not limited to, citron, clementine, grapefruit, oranges, sudachi, shonan gold, satsuma, tangelo, tangerine, limetta, tangor, lemons, limes, citron, yuzu or ugli fruit.
Stone fruits, such as, but not limited to peaches, nectarines and plums would also work.
Nuts, such as, but not limited to peanut and almond would also work.
Other crops such as, but not limited to apples, avocado, mangos, lychee and olives.
As a herbicide, the inventive composition can be effective against at least the following: palmer amaranth, morningglory, goosegrass, lambsquarter, crab grass, velvetleaf, giant foxtail, yellow foxtail, fall panicum, woolly cupgrass and broadleaf signalgrass.
As an insecticide, the inventive composition is effective against thrips, whiteflies such as but not limited to adult whitefly or nymph whitefly.
As a fungicide, the inventive composition can be used to protect against botrytis, and potentially against grey leaf spot, anthracnose, rust in corn; frogeye leaf spot, rust in soybean, and white mold in peanuts.
In addition, the inventive composition can be used as an adjuvant for enhancing herbicides, insecticides and fungicides.
It is possible that the inventive composition can be used as a herbicide, insecticide or fungicide without any additional ingredients.
The inventive composition can be used to improve defoliant and PGR efficacy in crops such as cotton.
The inventive composition can be added to a fertilizer. The fertilizer can be any fertilizer such as a fertilizer containing nitrogen, phosphorous and potassium, referred to as “NPK” or a fertilizer which does not contain any nitrogen referred to as a XPK. The fertilizer can contain boron, zinc, copper, iron, blends of nitrogen, phosphorous, potassium, or mixtures thereof.
The fertilizer can be ammonia sulfate, an ammonia salt of a carboxylic acid, mono- or di-potassium phosphate, a micronutrient, ammonia nitrate, urea, ammonia citrate or ammonia acetate. Optional components can be pH reducer, macronutrients and micronutrients.
The following field trials were conducted to evaluate the invention with herbicides, fungicides, insecticides, defoliants, and plant growth regulators. The main objective of these trials were to compare HM 1041A, which contains AMADS, and HM 1895, which contains DAMALEX. HM 1041A is a product that is a unique herbicide activator, containing a blend of deposition agents, activators and water conditioners that enhances herbicide efficiency. HM 1041A improves spray deposition and uptake, while preventing antagonisms caused by poor water quality. HM 1041A contains citric acid, alkyl amine alkoxylate, alkyl alkoxylated phosphate, and AMADS.
A set of field trials were conducted to compare HM 1041A with HM 1895 to determine increased herbicide efficacy with glyphosate and 2,4-D Amine.
The plot size was 6.34 feet wide by 20 feet long. The results are described below and in
These treatment tables are produced by the Agricultural Experiment Software, ARM. These column headings are common to all research protocols written in the software:
Type=Type of treatment (i.e. Adjuvant, Herbicide, Insecticide, etc.)
Treatment Name=Brand name or code for treatment
Form Unit=Formulation Unit for the concentration
Rate=Rate in which the product was applied
Rate Unit=unit of the corresponding rate (fluid ounces per acre, etc.)
Appl Code=Code assigned for the timing of the application
Appl Description=Description of the timing in which the application should be made (i.e. Post Weed Emergence, etc.)
The results are shown in
The plot size was 13.1 feet wide by 19.7 feet long. The results are shown in
Another field trial was conducted with the following parameters:
The plot size was 10 feet wide by 27.5 feet long. The results are shown in
A field trial was conducted to see compare HM 1895 and HM 1041A for improved insecticide efficacy with the following parameters:
A field trial was conducted to compare HM 1041A and HM 1895 for increased insecticide efficacy with acetamiprid (Assail 30 DG).
Treatment Information
Trial Information
A field trial was conducted to compare HM 1895 to HM 1041A for improved fungicide efficacy.
Treatment Information
The fruit were evaluated 7 days after the first application, 5 days after the second application, and 9 days after the second application
1. Both adjuvants provided an increase in fungicide efficacy against Botrytis.
2. Adjuvant rate did not affect efficacy against Botrytis.
3. No phytotoxicity resulted from fungicide and adjuvant applications.
A field trial was conducted to compare HM 1895 and HM 1041A for Improved Cotton defoliant and PGR efficacy.
Another field trial was conducted to evaluate the crop safety of HM 1895 and HM 1041A with different pesticides.
Summary
HM 1041A and HM 1895 were each applied at multiple rates with a fungicide, insecticide, and herbicide to evaluate potential crop injury. Radishes are a sensitive crop, and spraying pesticides in a greenhouse setting can increase the risks of phytotoxic effects. In this setting, HM 1041A and HM 1895 did not cause any phytotoxicity to the radishes when sprayed at the rates of 0.25, 0.5, and 1% v/v with SelectMax, Baythroid XL, and Quadris. These results suggest that HM 1041A and HM 1895 would be safe to applywith labeled rates of herbicides, insecticides, and fungicides in commercial field settings.
It is noted that HM 1041A is not as easy to handle as the inventive composition. HM 1041A has the following disadvantages. On the SDS of HM 1041A, it is stated that it can cause skin and eye irritation and maybe harmful is swallowed. It is recommended on the SDS to wear protective equipment, chemical-resistant gloves, ling-sleeved shirt and long pants, shoes plus socks when mixing or applying. This is not a requirement with our inventive composition.
Experimental field trials of this composition have also shown superior enhancements of pesticide efficacy over traditional spray adjuvants.
Test batches of DAMALEX and AMADS were made without corrosion inhibitors at a molar ratio of 1.05:1.00 diaminomethanal to acid and diluted to 85% by weight with water. Diaminomethanal is slightly in excess to eliminate the possibility of corrosion by free acid. A molar ratio rather than weight % was used to account for the difference in molar mass between carboxylic and sulfuric acids. Throughout test batch formulation, the exothermic AMADS reaction was kept below 65° C. by adding ingredients slowly with the mixing beaker in an ice bath. In contrast, the DAMALEX reaction is not exothermic, so heat was added to a maximum temperature of 48° C. to aid in dissolving of diaminomethanal. This indicates that DAMALEX would be safer and possibly quicker to manufacture than AMADS.
Corrosion testing was performed by a modified ASTM G 31-72 Standard Practice for Laboratory Immersion Corrosion Testing of Metals (2004). Test batches were prepared in separate sealed vessels with standardized, pre-weighed metal coupons partially submerged to create vapor, interface, and submerged phases between the solid metal and liquid test materials. Test batches were held at constant elevated temperatures between 45° C. and 46° C. for 168 hours. At the end of testing duration, metal coupons were removed from liquid test material, visually inspected, cleaned with water and gentle scrubbing, visually inspected a second time, and weighed back for mass loss. Corrosion rate was calculated as inches per year by the following formula:
As shown in Table 8, DAMALEX performed better than AMADS on Aluminum and Stainless Steel 304.
All ranges disclosed herein are inclusive of the endpoints, and the endpoints are independently combinable with each other (e.g., ranges of “10% to 90%, is inclusive of the endpoints and all intermediate values of the ranges of “10 to 90” etc.). Also included is the decimal such as 10 to 11 would include 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.8, 10.9 and 11. “Combination” is inclusive of blends, mixtures, alloys, reaction products, and the like. The terms “a” and “an” and “the” herein do not denote a limitation of quantity, and are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The suffix “(s)” as used herein is intended to include both the singular and the plural of the term that it modifies, thereby including one or more of that term (e.g., the film(s) includes one or more films). Reference throughout the specification to “one embodiment”, “another embodiment”, “an embodiment”, and so forth, means that a particular element (e.g., feature, structure, and/or characteristic) described in connection with the embodiment is included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it is to be understood that the described elements may be combined in any suitable manner in the various embodiments.
While particular embodiments have been described, alternatives, modifications, variations, improvements, and substantial equivalents that are or may be presently unforeseen may arise to applicants or others skilled in the art. Accordingly, the appended claims as filed and as they may be amended are intended to embrace all such alternatives, modifications variations, improvements, and substantial equivalents.
All the references described above are incorporated by reference for all useful purposes.
This application claims benefit to U.S. Provisional application No. 63/166,104 filed Mar. 25, 2021 which is incorporated by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63166104 | Mar 2021 | US |
