Nitrogen-containing compounds (C08K5/16)

Ionising radiation-resistant polymer composition

Polymer composition contains a propylene and ethylene copolymer, a sterically hindered amine, a stabiliser and a Remafin dye concentrate. The sterically hindered amine is (N-beta-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxy-piperidyl succinate), and the stabiliser is di(4-methyl-2,6-ditertbutylphenyl)phosphorous acid, oligomeric diphenoxy-propylidene-phenyl ether of phenyl phosphonic acid and pentaerythryl-tetrakis-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate.

Method of producing foamed vinyl aromatic polymers with low thermal conductivity by suspension polymerisation

Present invention relates to production of foamed vinyl aromatic polymers. The method of producing granules of fire-resistant foamed vinyl aromatic polymers, which enable to obtain foamed articles by aqueous suspension polymerisation, which includes polymerisation of styrene or a mixture of styrene and up to 25 wt % α-methylstyrene in an aqueous suspension in the presence of a peroxide initiating system which is active at temperature above 80°C, a foaming agent which is added before, during or after polymerisation, and in the presence of an amide of basic formula (I) R1CONHCH2 - CH2NHCOR2 (I), where R1 and R2, identical or different, denote an (iso)alkyl radical CH3(CH2)n for n ranging from 10 to 20, preferably from 16 to 18; and a fire-retardant system which includes a bromated additive with bromine content of more than 30 wt %, wherein said fire-retardant system includes bromated aliphatic, cycloaliphatic, aromatic compounds with bromine content of more than 30 wt %. Described is a foamed composition in form of granules based on vinyl aromatic polymers, which enables to obtain low-density foamed articles with improved insulating capacity, said composition including: a) a matrix obtained by polymerisation of styrene or a mixture of styrene and up to 25 wt % α-methylstyrene; b) 1-10 wt %, calculated with respect to the polymer matrix (a), foamed agent; c) 0.1-3 wt %, calculated with respect to the polymer matrix (a), self-extinguishing bromated additive in form of bromated aliphatic, cycloaliphatic, aromatic compounds with bromine content of more than 30 wt %; d) 0-1 wt %, calculated with respect to the polymer matrix (a), substance having synergetic effect, containing at least one C-C or C-O-O-C heat labile bond; e) 5-5000 mln-1, calculated with respect to the polymer matrix (a), amide of basic formula (I), obtained using the aqueous suspension polymerisation method described above. Also described is a foamed article, having thermal conductivity ranging from 34 to 36 mW/mK at 17 g/l, obtained by foaming and sintering granules based on a vinyl aromatic polymer composition described above.

Butadiene-nitrile rubber based rubber mixture

Invention relates to rubber industry, particularly production of rubber mixtures used to make articles for various purposes, including packer elements (rubber sealers in oil or gas wells), used in production of packer and anchor equipment. The rubber mixture contains the following ingredients, pts.wt (per 100.00 pts.wt rubber): paraffinate butadiene-nitrile rubber BNKS-40 AMN 100.00, with weight content of acrylonitrile of up to 41%, dicumyl peroxide (Perkadox BC-FF) - 3.0-4.0, vulcanisation coagent Deltagran HVA 2 70 GT - 1.0-3.0, zinc oxide - 3.0-5.0, antioxidant Irganox 1010 - 2.0-3.0, oligoester acrylates TGM-3 - 6.0-10.0, active technical carbon H-220 - 50.0-70.0, technical carbon T-900 - 10.0-30.0, dispersant zincolet BB 222 1.0-3.0, anti-scorch Santogard PVI - 0.3-0.5.

Composition for producing foam plastic

Invention relates to aircraft engineering, mechanical engineering and specifically to light, impact resistant, non-flammable foam materials which can be used as structural and heat-insulation aggregates, as well as in making components of "unsinkable" structures with a low water- and fuel-absorption coefficient, for example, float level gauges of fuel tanks of engine units. Disclosed is a composition for producing foam plastic having the following chemical composition, pts.wt: phenol novolac resin 20-40, phenol resol resin 60-80, nitrile rubber 20-40, urotropin 3-10, foaming agent 15-20, aluminium nitrilotrimethylphosphonate fire retardant 3-10. The technical result is high impact viscosity and low fuel-absorption of the foam plastic.

Fire-resistant polyamide composition

Polyamide-based composition contains melamine cyanurate and novolac. The composition is suitable for moulding articles which are used in electrical and electronic connections such as circuit breakers, switches and connectors.

Bituminous composition with thermoreversible properties

Invention relates to a bituminous composition for use in the field of bitumen, road construction and industry. The bituminous composition comprises a larger portion of at least one bitumen and a smaller portion of at least one chemical additive. The additive is an organogelling agent which creates a network of hydrogen bonds between gelling molecules of the organogel which have molar mass less than or equal to 2000 g·mol-1. Said agent includes at least one hydrogen bond donor group D, at least one hydrogen bond acceptor group A and at least one compatibility enhancing group C which makes the organogelling agent compatible with bitumen chemical compounds. Said agent makes up at least 0.1 wt % of the total weight of bitumen. The invention also relates to a method of producing and using these bituminous compositions in road construction, particularly in producing road binding substances, as well as in industry.

Asphalt modifier composition and asphalt composition containing said modifier

Invention relates to a method of producing an asphalt modifier composition, involving: obtaining a triblock copolymer via block copolymerisation of a vinyl aromatic hydrocarbon and a diene compound with conjugated double bonds as a result of anionic polymerisation using an organic anionic initiator in a reactor, having a hydrocarbon solvent, where the step of producing the block copolymer involves: formation of a vinyl aromatic block by feeding a vinyl aromatic hydrocarbon into a reactor, having a hydrocarbon solvent, and then feeding an organic anionic initiator; forming a diene block with conjugated double bonds, bonded to the end of the vinyl aromatic block, by feeding a diene compound with conjugated double bonds into the reactor; feeding a functional additive, selected from a group consisting of compounds of formula 1, into the reactor; and obtaining an asphalt modifier composition, including a block copolymer and a functional additive, by removing a hydrocarbon solvent, Formula 1 ; in formula 1, the sum n+m-m' is equal to 35, n is an integer from 1 to 5, each of m and m' is an integer equal to at least 1, and X is an ester group [-C(=O)O-]. The invention also relates to a method of producing the asphalt modifier composition and asphalt composition.

Particle containing matrix and radical initiator

Invention pertains to a particle comprising a composition containing a matrix and a peroxide or azo radical initiator, as well as rubber-coated products, tyres, tyre treads and belts containing particle-elastomer systems. The particle is selected from aramid, polyester, polyamide, cellulose fibre and glass fibre. The matrix is selected from an extruded polymer, wax or mixture thereof.

Translucent uv-a-screening material and use thereof in suntan apparatus

Invention relates to protection from hard UV radiation during sunbathing. The invention employs translucent polymer materials - polymer films, nonwoven polymer materials and polymer sheets, which contain a light stabiliser-filter concentrate in an amount which ensures maximum transmission of UV-A-radiation with wavelength range 320-380 nm and maximum absorption of UV-C- and UV-B-radiation with wavelength range 270-320 nm. Such translucent polymer materials can be used to make different suntan devices: umbrellas, beach or home, with domes made from said translucent material, sun loungers with hoods made from said translucent material, pools, summer houses, pavilions, cafes with roofs made from said translucent material, shared or personal sun booths etc.

Stabilising system for halogenated polymers

Invention relates to a stabilising system for halogen-containing polymers, as well as a composition and article made from the composition which contains the stabilising system. The stabilising system for halogen-containing polymers contains component (A) in form of a calcium monocarbonate hydroxodialuminate of formula (A) CamAl2(OH)6+2(m-1)CO3*nH2O (A), where m varies from 3.8 to 4.2 and n varies from 0 to 3, and component (B) in form of catena-2,2',2"-nitrile trisethanol perchlorate lithium or sodium coordination polymer (B1), having a monomer link of formula , where Mt denotes Li or Na, An denotes OCIO3, q equals 1, and can additionally contain perchlorate of quaternary or tertiary ammonium or phosphonium (B2).

Stable adhesives from urea-denatured soya flour

Method involves denaturing soya flour which basically involves thermal treatment of the soya flour in an aqueous solution, and then adding urea to the denatured soya flour which is essentially free from urease. The soya flour is denatured by heating to temperature 40°C-100°C for at least 15-500 minutes. The method also involves adding a cross-linking agent to the mixture of soya flour and urea and/or adding an emulsified or dispersed polymer. The polymer is selected from polyvinyl acetate or phenol-formaldehyde dispersions. The adhesives demonstrate high stability and adhesion-strength properties.

Tire belt with anti-oxidant

The invention relates to car tires, to tire belt in particular. The tire belt contains a rubber composition based, at least, on a isoprene elastomer, reinforcing material, suturing system and anti-oxidant. The anti-oxidant contains 4,4'- bis(alkylamino)triphenylamine, corresponding to the formula: where R1 and R2 can be identical or different, each of them represents a branched or an unbranched alkyl residue comprising from 1 to 12 carbon atoms, or a cycloalkyl group comprising from 5 to 8 carbon atoms.

Method of curing novolac resin

Curing takes place in with the participation of aromatic dinitriles in the presence of antimony (III) chloride or aluminium chloride at temperature 150-200°C for 10-30 minutes.

Epoxy binder and reinforced profile fibre-glass based on said binder

Binder contains the following (pts.wt): epoxy-novolak resin with epoxy equivalent weight of 169-181, containing 2.5-3.6 glycidyl groups per mol of the epoxy resin - 100, hardener - anhydride of methyl-endo-cis-5-norbornene dicarboxylic acid - 80-95, curing accelerator - 0.1-2.0, and target additives - 0.5-2.0. The binder has acceptable application life for producing fibre-glass.

Epoxy resins containing cycloaliphatic diamine based curing agent

Invention relates to curing compositions for epoxy resin based systems. The invention discloses a curing composition for epoxy resins, containing a mixture of 1,3-bis(aminomethyl)cyclohexane and 1,4-bis(aminomethyl)cyclohexane, a prepolymer curing composition for epoxy resins, containing a product of reacting epoxide with a mixture of 1,3-bis(aminomethyl)cyclohexane and 1,4-bis(aminomethyl)cyclohexane, as well as a method of preparing the prepolymer curing composition, a method of gluing two substrates, an aqueous epoxy resin and versions of curing compositions and methods of applying a coating on a substrate.

Triethanolamine perchlorato (triflato)metal inner-complex coordination polymers as additives for synthetic polymers

Invention discloses at least one triethanolamine perchlorato (triflato) metal inner-complex coordination polymer with monomer links of formula A system of stabilisers can also contain substituted cyanacetyl carbamides, 6-aminouracyls, 3-aminocrotonic acid esters, hydantoins, monomer or polymer dihydropyridines, hydroxides of alkali-earth metals, hydrotalcite, dawsonites, zeolites, glycidyl compounds, cyanamides, cyanguanidines and/or melamines, repectively. Phosphites and/or sterically hindered amines and/or NOR-HALS compounds can also be present, where Mt denotes lithium, sodium, potassium/magnesium, calcium, strontium, barium and zinc, An denotes OClO3 or OS(O2)CF3 and q equals 1 or 2. The invention also relates to a composition for making films containing polyvinylchloride and the said system of stabilisers.

Adhesion activating agent of rubbers to brass-coated metal

There is described adhesion activating agent of rubbers to brass-coated metal, corresponding alloy of blocked by ε-caprolactam and higher fatty acids dy- and (or) polyisocyanate with cobalt stearate, boric acid and secondary phenylenediamine. Mentioned alloy is encapsulated by powder-like inorganic matter, selected from group, including colloidal silicic, kaolin, bentonite, zinc oxide, at ratio (wt %): 60-20 and 40-80 correspondingly.

Epoxide resin hardening compositions

Present invention pertains to versions of compositions, which are used in making powder coatings for pipes. In the first version, the composition based on epoxide resin contains a mixture of a hardening agent and a primary amino alcohol. In the second version, the hardening composition based on epoxide resin contains a hardener-primary amino alcohol, which reacts with a phenol resin derivative. The amino alcohol used has the following structural formula: where each of R1 and R2 independently represents a C1-C6 hydroxyalkyl group or a C1-C6 alkyl group.

Novel stabilising sysem for halogenated polymers

Stabilising system includes, at least, (a) one perfluoralkansulfonate salt and (b), at least, one or several indoles and/or ureas and/or alkanoamines and/or aminouracils, in which indoles have general formula (I): ureas have general formula and alkanoalamines have general formula (III) which is used in compositions, containing chlorine-containing polymers, in particular, polyvinylchloride.