Claims
- 1. Volatile silicon compounds having the formula ##STR15## wherein 1) X=1 to 4, 2) total carbons.ltoreq.14, 3) R can be independently C.sub.1 -C.sub.10 alkyl or trialkyl siloxy, and 4) at least one R per molecule must be selected from --R.sub.1 R.sub.2 where R.sub.1 =C.sub.1 -C.sub.9 alkylene and R.sub.2 is selected from (i) --O--R.sub.3 wherein R.sub.3 =C.sub.1 -C.sub.5 alkyl, ##STR16## wherein the boiling point of all of these novel silicon compounds at 760 mm is .ltoreq.260.degree. C.
- 2. Volatile silicon compounds according to claim 1 having the structure: ##STR17## wherein 1) X=1 to 4, 2) total carbons .ltoreq.14, 3) R can be independently C.sub.1 -C.sub.10 alkyl or trialkyl siloxy, and 4) at least one R per molecule must be selected from --R.sub.1 R.sub.2 where R.sub.1 =C.sub.1 -C.sub.4 alkylene and R.sub.2 is selected from (i)--O--R.sub.3 wherein R.sub.3 =C.sub.1 -C.sub.5 alkyl, ##STR18##
- 3. A volatile silicon compound according to claim 2 having the formula: ##STR19##
SUMMARY OF THE INVENTION
This is a continuation of application Ser. No. 404,720, filed on Sept. 8, 1989, now abandoned, which was a continuation-in-part of U.S. application Ser. No. 168,720, filed Mar. 16, 1988, now U.S. Pat. No. 4,874,868.
Volatile silicon compounds have found wide acceptance in a number of different types of products ranging from cosmetics to antifreeze formulations. Such silicon compounds are good solvents for a variety of materials and serve to give excellent feel on surfaces such as skin and hair.
The most common types of volatile silicon compounds are linear and cyclic siloxanes having from one to about seven siloxane groups. While these are the most common, there are other types which have been disclosed. Included among such other silicon compounds are those in U.S. Pat. No. 4,207,424. June 10, 1980 to Winnick -- ##STR1##
Additional disclosures of volatile silicon compounds are in U.S. Pat. No. 4,355,062, Oct. 19, 1982 to Wang et al. Certain alkyl linear siloxanes such as ##STR2## are disclosed in U.S. Pat. No. 4,376,087, Mar. 8, 1983 to Poliniak et al. Cyclic silicones different from those mentioned above are disclosed in U.S. Pat. No. 4,364,837. Dec. 21, 1982 to Pader. Still other volatile silicon compounds are disclosed in Japanese unexamined applications JP 9108-046. Oct. 14, 1974; JP 1102-019, Sept. 7, 1976; JP 607-824. June 15, 1981; JP 6139-527, Oct. 31, 1981; and JP 7035-526, Feb. 26, 1982.
Although the references discussed above disclose a variety of volatile silicon compounds, there is still the need for additional materials which meet the requirements of cosmetic and household products.
It is therefore an object of the present invention to provide novel volatile silicon compounds.
It is a further object to provide novel silicon compounds which have good solvency properties.
It is a further object of the present invention to provide novel silicon compounds which have good compatibility with conventional cosmetic and household product ingredients.
These and other objectives will become readily available from the detailed disclosure below.
All percentages and ratios herein are by weight unless otherwise specified. Additionally, all measurements are made at 25.degree. C. unless otherwise specified.
The present invention relates to novel silicon compounds of the following structures:
a) Linear siloxanes ##STR3## wherein 1) X=1 to 4, 2) total carbons.ltoreq.14, 3) R can be independently C.sub.1 -C.sub.10 alkyl or trialkyl siloxy and 4) at least one R per molecule must be selected from R.sub.1 R.sub.2 where R.sub.1 =C.sub.1 -C.sub.9 alkylene (preferably C.sub.1 -C.sub.4 alkylene) and R.sub.2 is selected from (i)--O-R.sub.3 wherein R.sub.3 =C.sub.1 -C.sub.5 alkyl, (ii)--C.sub.1 -C.sub.7 ketone, ##STR4##
b) Cyclic siloxanes ##STR5## wherein 1) Y=3 to 6,2) total carbons.ltoreq.14, 3) R can be independently C.sub.1 -C.sub.10 alkyl, and 4) at least one R per molecule must be selected from --R.sub.1 R.sub.2 where R.sub.1 =C.sub.1 -C.sub.4 alkylene and R.sub.2 is selected from (i)--O-R.sub.3 where R.sub.3 =C.sub.1 -C.sub.5 alkyl, (ii)--C.sub.1 -C.sub.7 ketone, ##STR6## wherein 1) Z=1 to 4, 2) total carbons.ltoreq.14, 3) R can be independently C.sub.1 -C.sub.10 alkyl or trialkyl (C.sub.1 -C.sub.3) siloxy, and 4) at least one R per molecule must be selected from --R.sub.1 R.sub.2 where R.sub.1 =C.sub.1 -C.sub.9 alkylene (preferably C.sub.1 -C.sub.4 alkylene) and R.sub.2 is selected from ##STR7##
(iv)--CN, and
(v)--C.sub.1 -C.sub.7 ketone.
The boiling point of all of these novel silicon compounds at 760 mm is .ltoreq.260.degree. C.
US Referenced Citations (12)
Foreign Referenced Citations (5)
| Number |
Date |
Country |
| 49-108046 |
Oct 1974 |
JPX |
| 51-102019 |
Sep 1976 |
JPX |
| 56-071824 |
Jun 1981 |
JPX |
| 56-139527 |
Oct 1981 |
JPX |
| 57-035526 |
Feb 1982 |
JPX |
Continuations (1)
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Number |
Date |
Country |
| Parent |
404720 |
Sep 1989 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
| Parent |
168720 |
Mar 1988 |
|
Patent Grant
5084577
