Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups and c08l0001000000-c08l0007000000 and or c08l0089000000-c08l0097000000 (C08L99)

C   Chemistry; metallurgy(318327)
C08L99                 Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups ; c08l0001000000-c08l0007000000; or c08l0089000000-c08l0097000000(14)
Peroxide dispersions // 2631815
FIELD: chemistry.SUBSTANCE: aqueous dispersion contains 37.5-42 wt % of benzoyl peroxide with an average particle size of less than 5 mcm; 0.1-2.0 wt % of surfactant (surfactant) - a polyglyceryl ester partially esterified with a mixture of octanoic acid and decanoic acid, with HLB 12-18; water; gelling agent; crosslinker and base. The process for preparing said aqueous dispersion comprises grinding benzoyl peroxide having an average particle size greater than 10 mcm in water in the presence of mentioned surfactant.EFFECT: decrease in the viscosity of aqueous dispersions of organic peroxides and the ability to easily dispense or pump highly concentrated aqueous dispersions of organic peroxides with a pump.13 cl, 2 ex

Bioresorbable material based on amorphous hydroxyapatite and method of its obtaining // 2510740
FIELD: chemistry.SUBSTANCE: invention relates to biotechnology, namely to biomaterials, which represent nanoparticles of bioresorbable amorphous hydroxyapatite, which can be applied in medicine and in cosmetology, for example, as material, which stimulates regeneration of soft and bone tissue, including medication, which is applied for healing wounds of various etiology, as osteoplastic material, as active component for oral cavity hygiene preparations, as well as nanocarrier for medications. Material includes placed in organic matrix nanoparticles of amorphous calcium hydroxyapatire, partially isomorphously substituted with ions of metals of II group (MII) of general formula Ca10-x MII x (PO4)6OH2, where (MII) is Mg2+ and/or Zn2+, 0.01≤x≤2. Method of obtaining bioresorbable material includes preparation of mixture from calcium hydroxide, monosubstituted calcium phosphate monohydrate and metal oxides, as such applied are magnesium oxide and/or zinc oxide with atomic ratio (Ca+MII)/P=1.67, Ca/P not less than 1.33, where (MII) - Mg2+/or Zn2+, addition to mixture of biopolymer water solution in form of hydrogel with concentration of polymer 0.01-10.0 wt % for formation of organic matrix, deposition of nanoparticles of amorphous hydroxyapatite at temperature 10-30°C at neutral pH values 7.0-7.5 with the following filtering and drying of sediment at temperature 20-30°C until final product is obtained.EFFECT: obtaining substance, corresponding to chemical formula of hydroxyapatite, with degree of amorphism from 95 to 100%.9 cl, 6 dwg, 5 ex

eans for stimulating synthesis of heat shock protein hsp 70 in human and animal cells; beauty product for stimulation of reparative processes; beauty product for reduction of side effects of aggressive cosmetic procedures; biologically active additive; food product; method of reduction of side effects of aggressive cosmetic procedures // 2495928
FIELD: biotechnology.SUBSTANCE: means comprises at least one phenolic compound from the group of derivatives of cinnamic acid or a mixture of such compounds, and a nonionogenic surfactant or a mixture of such substances in an amount of not less than 75% by weight.EFFECT: invention enables to obtain beauty products, biologically active additives and food products on the basis of the described means and to use them to stimulate the reparative processes in a cell and to reduce the side effects of aggressive cosmetic procedures.30 cl, 7 dwg, 3 tbl, 38 ex

ixture of graft copolymers // 2475505
FIELD: chemistry.SUBSTANCE: invention relates to a mixture of graft copolymers for use as an additive in chemical materials, as well as in development, exploitation and integration of underground deposits of oil and natural gas and in case of deep wells. The mixture of graft copolymers contains at components, at least one representative of brown coal, brown coal coke, lignite and a brown coal derivative, at least one representative of natural polyamides and different vinyl-containing compounds. The grafting base is selected from at least one representative of brown coal, brown coal coke, lignite and a brown coal derivative such as tannin and/or such a polyphenol derivative as lignosulphonate, or a polyamide component. Suitable polyamide components are natural polyamides, preferably caseins, gelatins and collagens, bone glues, blood albumins, soya proteins and products of splitting thereof, which are formed via oxidation, hydrolysis or depolymerisation, as well as mixtures thereof. The grafting component used is representatives of brown coal, brown coal coke, lignite, a brown coal derivative and natural polyamides, as well as vinyl-containing compounds in their O-, S-, P- and N-forms and styrenes, which can be in sulphonated form, or as a graft product. The graft product is obtained by grafting a vinyl-containing compound to at least one representative of natural polyamides or mixtures thereof, or grafting a vinyl-containing compound to at least one representative of brown coal, brown coal coke, lignite and a brown coal derivative. Graft copolymers with preferred molecular weight are used as a mixture, particularly in chemical construction materials and during development, exploitation and integration of underground deposits of oil and natural gas and in case of deep wells or as an additive for compositions containing hydraulic binding substances, as a water-retaining agent and/or liquefier.EFFECT: graft copolymers have excellent resistance to salt and temperature and are also water-soluble and/or biodegradable.17 cl, 2 tbl, 7 ex
The rubber mixture for the tread part of the massive tires // 2213109
The invention relates to compositions of macromolecular compounds, and in particular to compositions of rubbers and their derivatives, in particular homopolymers or copolymers of diene hydrocarbons with conjugated double bonds used in the tire industry

odifier for rubber mixtures (options) and how to obtain it (options) // 2213108
The invention relates to multi-functional modifiers used in tire and rubber industry for rubber compounds based on unsaturated rubbers

Composition based on natural oil shale for the production of plastic products // 2173323
The invention relates to a process of manufacturing rubber ebonite products can be used in aviation, engineering, agriculture, medicine and everyday life
 
2551186.
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