Patent Application
20190330469
The invention relates to a polyurethane composition, which is used for the manufacture of products for the industry and households, in particular in the manufacturing of mattresses, sofas, seats, chairs, and underwear.
It is known that polyurethanes are a widely used group of polymers. They are used as structural materials in many fields of industry due to their strength and durability.
It is known that for the formation of polyurethane foam are used polyether polyvalent alcohols and organic diisocyanates, which are bound to each other by a urethane bond and at the same time the organic diisocyanates react with a foaming agent, usually water to generate carbon dioxide gas. This causes the formation of foam. Traditionally, organoamines or organometallic compounds are used as catalysts of the process. Silicone surfactants may be used for stabilization of polyurethane. It is also known that in the production process, various fillers, additives, and colorants may be added to the mixture for the preparation of polyurethane (GB967441, WO2007146351, EP1559734).
American patent U.S. Pat. No. 4,937,273 protects flexible polyurethane foams, containing as an additive inorganic antibacterial agents—zeolite or activated carbon with silver, zinc or copper ions adsorbed on them. Inorganic antibacterial agents are preferably used in the form of powder with an average particle diameter from 0.1 to 1 μm.
American patent application US2007287002 refers to a mattress made of polyurethane foam, comprising the addition of flavoring, incorporated therein, whole leaves, leaf pieces or leaf powder of lavender, chamomile, rose, green tea, peppermint, jasmine, sage, or combinations thereof.
American patent U.S. Pat. No. 8,366,757 protects polyurethane or high elastic foam for mattresses, pillows or mats for sport, which emit infrared radiation and/or ions. In addition to the base material, prior to treatment by standard techniques, such as molding, extrusion and other known practices, these include ground to a fine powder materials such as tourmaline, granite porphyry, quartz porphyry, zeolite, perlite, minerals serpentine or mixtures thereof. The invention also provides for the possibility of using additional additives of fine particles of other inorganic materials selected from aluminum, ferrite, copper, chromium oxide, titanium oxide, zirconium dioxide and silica dioxide, which also emit or amplify the effect of the additives and a possibility to use additives in order to provide additional effects such as: anti-mould, anti-fungal, deodorant, perfume.
Patent application CN101457017 refers to a polyurethane composition for interior products, deodorizing, antibacterial and applicable for the prevention of diseases, including polyols and organic polyisocyanates, foaming agent, a catalyst, a polymerization initiator and a stabilizer, to which are added anion additives of ultrafine powders of natural opal or tourmaline, dispersed in the polyurethane forming mixture, as well as other additives such as softeners, colouring agents, fixing agents, thickeners and wetting agents.
A published International patent application WO2012/137128 discloses an invention for creation an actively heated product (e.g. a mattress, pillow, blanket, slippers, item of clothing,), comprising: double frame with bags filled with natural amber filling on one side; actively heated semi-rigid panels inserted between the two sides/sectors of the frame; retainers to secure the product closely adjacent to a human body (e.g. to the back), and special electric power supply to heat and maintain a required temperature in the above mentioned heated semi-rigid panel for a required period of time. The invention was intended for heating natural amber contained in the above mentioned product to the optimum temperature of 26-40° C. by employing a special power supply and putting the frame part with actively heated amber filling closely adjacent or at a certain distance (a couple of cm) to a human body; with the aim to: heat natural amber to the temperature at which amber starts to radiate ions, the radiation and effect of which intensify significantly after the temperature of natural amber reaches 26-40° C., and which positively stimulate energy points and channels of a human body, function of nerve centres, transmission of nerve impulses, cellular activity, metabolism etc.; and induce electromagnetic field around amber by biologically active electromagnetic field of a human (hereinafter—biological field of a humane) and initiate interaction between biological field of a human and the induced biological field created by human around amber, with human's biological field positively responding to such an interaction (tranquilizing, yet stimulating) and directly influencing nerve/reflex centres and energy channels
The main purpose of this invention is to create a polyurethane end composition with versatile application, possessing properties beneficial to health, such as stimulating metabolism, relieving asthmatic and allergic respiratory problems, helping the overcoming of physical pain, and eliminating negative energy.
In nowadays humans tend to turn to nature and its naturalness more often: nature is the place to look for answers to numerous questions, the place to find new natural and effective methods of improving physical and spiritual health. Natural amber is a noteworthy and still not fully discovered material. Most scientists agree that amber is an amorphous natural derivative of organic nature. Amber is a solidified derivative of resin secreted by Pinus Succinifera or other species of pine tree millions of years that resembles a mineral. Amber contains about 8% of amber acid (has been used in pharmacology since ancient times), as well as various other additives. Most scientists and people working with amber propose that amber can improve biophysical aspects of human organism and separate organs, improve healing of tissues and organs and functioning of central nervous and digestive systems. It has been noticed that under the influence of amber, the number of inflammatory, degenerative processes in joints and top layers of skin tends to decrease, ear, eye, stomach and tooth pain is suppressed, rheumatism is treated. Moreover, doctors used amber for treating children that had suffered from Chernobyl catastrophe and were largely subject to thyroid disorders.
Hence, we has created a polyurethane foam composition according to the description, consisting of polyurethane foam, formed of a composition comprising at least one polyol and at least one organic polyisocyanate, catalyst, foaming agent, a polymerization initiator and a stabilizer, to which was added powdered amber or amber-like resins with predetermined size of the particles ranging preferably from 1 to 3000μ and more often in an amount of 0.1 to 10% by weight.
The polyurethane foam composition according to the invention may also include other additives, such as substances—cell openers, one or more non-combustible compounds, colorants, fillers, antimicrobial agents, crosslinking agents, chain extenders, lubricants, antistatic agents, reactive polyurethane pigments and other additives.
The polyurethane foam according to the invention is formed according to established and conventional processing techniques, but with addition of the powdered amber to the polymerization mixture under continuous stirring, before expansion or after being mixed with glue or other binding substances, it is sprayed as a layer in the already finished polyurethane product.
The polyurethane foam according to the invention has characteristics beneficial for the health such as stimulating metabolism, relieving asthmatic and allergic respiratory problems, helping the overcoming of physical pain and eliminating negative energy, among others including a wide range of density, elasticity and hardness.
The current invention is illustrated by the following exemplary embodiments:
Polyurethane foam was prepared by using the following starting components:
All raw materials for the preparation of the polyurethane foam are tempered at
a temperature of 25° C. In a mixer equipped with a stirrer, were dosed the necessary amounts of the polyether polyol triol, water, tin (II)-2-ethylhexanoate, triethylenediamine in dipropylene glycol, silicon, and pigment. To the homogenized mixture in the mixer it was dosed additionally 2 parts by weight/kg powdered amber with particle size of 70μ, after which was added the tempered at a temperature of 25° C. mixture of toluene 2,4-diisocyanate and toluene 2,6-diisocyanate in a ratio of 80:20, which starts the reaction for the preparation of polyurethane foam. The mixture is dispensed into a mold which is placed in a vacuum chamber where it expands for 70 s under vacuum 18 kPa, and then the expansion continues for 30 s at atmospheric pressure.
Polyurethane foam was prepared by using the following starting components:
The raw materials for the preparation of the polyurethane foam were tempered at a temperature of 25° C. and mixed according to the method described in Example 1. To the mixture was added powdered amber with particle size of 70μ in an amount of 4 parts by weight/kg.
The resulting mixture was dosed into a mold and the expansion took place in a vacuum chamber in which vacuum 67 kPa for 100 s is maintained, and then it continued at atmospheric pressure for 90 s.
The resulting polyurethane foam had a volume weight (density) of 30±2 kg/m3; hardness 4.0±1 kPa, and elasticity 42% according to the Ball rebound test.
Polyurethane foam was prepared by using the following starting components:
The raw materials for the preparation of the polyurethane foam were tempered and mixed according to the method described in Example 1. To achieve the desired health effect of the impact on the user, to the mixture was added powdered amber with particle size of 70μ in an amount of 2.7 parts by weight/kg.
The resulting mixture of raw materials was dosed into a mold and expanded at atmospheric pressure.
The resulting polyurethane foam had a volume weight of 36±2 kg/m3 and hardness 2±1 kPa.
Polyurethane foam was prepared by using the following starting components:
The raw materials for the preparation of the polyurethane foam were tempered and mixed according to the method described in Example 1. In order to achieve the desired health effect of the impact on the user, to the mixture was added powdered amber with particle size of 70μ in an amount of 6 parts by weight/kg.
The resulting mixture of raw materials was dosed into a mold and expanded at atmospheric pressure.
The resulting polyurethane foam had a volume weight of 80±2 kg/m3 and hardness 2.0±1 kPa.
Amber powder with a particle size of any value in the range of 1 to 170μ was mixed with appropriate glue. The mixture was stirred by means of a double diaphragm pump with complete recirculation until reaching homogeneous mixture. The resulting mixture was sprayed in the shaped polyurethane product by pistol model Finex.
The essence of the invention is the product (a structure) that combines:
The essential uniqueness of the invention:
| Number | Date | Country | Kind |
|---|---|---|---|
| 3204 | Jan 2016 | BG | national |
| 3532 | Jun 2016 | BG | national |
| 112374 | Sep 2016 | BG | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/BG2016/000022 | 9/15/2016 | WO | 00 |
