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4737528 |
Vulcanizable polymer mixtures, their production and use and vulcanizates obtained therefrom
Polychloroprene rubbers having favorable processing behavior and excellent properties are obtained if mono-, di- or trichlorosubstituted polyisobutylene is added as plasticizer before vulcanization.
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4735982 |
Thermoplastic-rubber polymer alloys and method for producing the same
A thermoplastic-rubber polymer alloy contains a tough, wear resistant low friction thermoplastic such as ultra high molecular weight polyethylene, a cured rubber compound such as nitrile rubber, an...
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4713420 |
ABS compositions having trimodal rubber particle distributions
Rubber modified styrene-acrylonitrile polymers (ABS) having three different types of rubber particles. One type is small, usually emulsion-produced particle. The second is a large emulsion-produced...
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4652612 |
Rubber mixtures, and rubber articles and motor vehicle tires produced therefrom
Rubber mixtures which can be easily processed and have good mechanical properties and are based on synthetic and/or natural grades of rubber, the usual additives also being used, contain a...
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4644024 |
Pentadienyl chloride derived polymers
Polymers containing repeat units based on substituted or unsubstituted pentadienyl chloride monomers are disclosed. The polymers are fast curing and some of the polymers are self-curing.
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4639487 |
Heat shrinkable thermoplastic olefin composition
Heat shrinkable thermoplastic compositions are prepared by blending an ethylene copolymer resin with a rubber and dynamically vulcanizing the rubber. The ethylene copolymer resin is a copolymer of...
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4621118 |
Sulfurized guayule resin and rubber
Guayule resin is sulfurized such that it has a high softening point of at least 70° C. The sulfurized guayule resin can be utilized in association with conventional rubbers and the end results in...
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4590227 |
Water-swellable elastomer composition
Water-swellable elastomer composition consisting essentially of a homogeneous mixture of an elastomer, a water-absorbent resin and a water-soluble resin. Said composition exhibits a high degree of...
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4587302 |
Butyl rubber and chlorinated rubber composition
Disclosed are vulcanized compositions of (1) from about 80% to about 99% of a rubber material selected from the group consisting of butyl rubber, halogenated butyl rubber having from about 1% to...
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4579911 |
Polymer bound nonionic surfactants as cure activators
There are disclosed polymers which have nonionic surfactant moieties pendant to the polymeric backbone which exhibit activated sulfur vulcanization, a process for their preparation, and mixtures of...
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4532298 |
Compression-resistant water-swellable rubber composition and watertight sealing material comprising the same
The invention provides a novel watertight rubbery sealing material of which the water-swellability is markedly insusceptible to the adverse influence of compression of the material in a dry...
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4485216 |
Polychloroprene mixtures and the use thereof
Solid polychloroprene mixtures consisting of sol and gel polymer, wherein the sol component consists of a copolymer of chloroprene and from 0.75 to 0.32% by weight of sulphur, based on the total...
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4482676 |
Production of sulfur-modified solid chloroprene rubbers
Vulcanizable, elastomeric chloroprene/sulfur copolymers having viscosities of from 60 to 35 ME, strengths of greater than 20 MPa and sulfur contents of from about 0.3 to 0.45% by weight are...
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4468487 |
Polymer composition comprising nitrile copolymer, CPE and rubber
Disclosed is an impact-resistant polymer composition based on a copolymer of an unsaturated nitrile, a substantially saturated rubber and a chlorinated polyethylene. To maintain high impact...
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4454304 |
Method and material for producing high green strength rubber compounds
The method of producing a rubber compound having high green strength comprising providing separate rubber components one of which contains a tertiary amine component bound therein and the other of...
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4452947 |
Process for the production of sulphur-modified solid chloroprene rubbers
Vulcanisable, elastomeric chloroprene-sulphur copolymers having viscosities of from 60 to 35 MU, strengths of >20 MPa and sulphur contents of from about 0.5 to 0.7%, by weight, in the batch are...
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4443583 |
Process for the production of chloroprene polymer mixtures
A process for the production of polychloroprene mixtures of sol and gel polymers in a ratio, by weight, of rom 1:4 to 9:1, the gel polymer being produced by radical emulsion polymerization from...
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4443582 |
Mixtures of chloroprene polymers and the production thereof
This invention relates to a polychloroprene elastomer distinguished by good processing properties and high tensile strength in the form of a polychloroprene mixture containing a sol polymer and a...
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4433106 |
Production of sulphur-modified polychloroprene rubbers
Vulcanizable, elastomeric, sulphur-modified polychloroprene rubbers having improved properties are obtained by adding up to 40%, by weight, of SBR latex (solids, based on total solids) before...
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4421900 |
Blends of natural and synthetic rubbers
A blend of natural and synthetic rubbers having processability and improved green strength and building tack is provided. The blend comprises from about 5 to 55 parts by weight of natural rubber,...
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4358402 |
Chlorinated polymers
A solid chlorinated polymer product having reduced residual solvent content is prepared by treatment of a solution thereof with steam or hot water in the presence of a separately prepared added...
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4357444 |
Method for mechanically subdividing rubbery, tacky polymer
Rubbery, tacky polymer is mechanically subdivided in the presence of fine particles of substantially thermoplastic halogenated polymer.
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4310443 |
Process for vulcanizing halogen containing rubber composition at a low temperature
A process for vulcanizing a rubber base comprising at least one halogen-containing amorphous polymer at a low temperature ranging from 5° to 85° C., which comprises carrying out the vulcanization...
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4284535 |
Rubber composites suitable for tire sidewalls from hexadiene polymer
The invention relates to elastomer composites which can be used for pneumatic tire sidewalls. Such composite particularly comprises a manipulated blend of (A) a hexadiene polymer, (B) high...
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4283318 |
Non-aqueous composite gel and process for production thereof
A non-aqueous composite gel and a process for the production thereof are described, said gel containing emulsified high boiling point hydrophilic liquid particles, said non-aqueous composite gel...
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4269740 |
Process for producing elastomeric particles free of agglomeration
This invention relates to a process of producing elastomeric particles, such as those of natural and synthetic powdered and crumb rubbers and to the compositions prepared in accordance with such...
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4267079 |
Cured rubber skim compositions exhibiting better humidity aged metal adhesion and metal adhesion retention
Disclosed is an improved cured rubber skim stock composition containing natural rubber utilized in the manufacture of tires, conveyor belts, hoses and the like, and with metallic reinforcement...
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4267080 |
Polyethylene composition for rotational molding
Polymers of ethylene having incorporated therein (1) 5-50 weight parts of a rubber and/or an elastomer based on 100 weight parts of the ethylene polymers, (2) a crosslinking agent selected from...
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4254013 |
Green strength of elastomer blends
The green strength of elastomer blends of natural or synthetic cis-1,4-polyisoprene and synthetic elastomers is improved by adding to the chain of the synthetic elastomer an ionogenic compound. The...
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4244843 |
Covulcanized rubber
A rubber composition and a process for the preparation of rubber compositions comprising, in the presence of a metal oxide, vulcanizing, or vulcanizing after blending with another unsaturated...
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4240487 |
Pneumatic rubber tire having improved sidewalls
The invention relates to elastomer composites which can be used for pneumatic tire sidewalls. Such composite particularly comprises a manipulated blend of (A) a hexadiene polymer, (B) high...
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4235980 |
Elastomeric terionomer blends
Elastomeric terionomer blends composed of (1) a copolymer of chloroprene with an α,β-unsaturated carboxylic acid, (2) a copolymer of ethylene with an α,β-unsaturated carboxylic acid, and (3) a...
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4234704 |
Chloroprene polymer composition
A chloroprene polymer composition comprises a benzene soluble chloroprene polymer (A) and a gel chloroprene polymer (B) at a ratio ranging from 20:1 to 1:1, wherein the benzene soluble chloroprene...
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4225682 |
Sulfur modified polychloroprene with improved storage stability
Elemental sulfur modified polychloroprene rubbers having improved Mooney viscosity stability are prepared by blending a sol and a gel in a weight ratio of sol:gel of from 98:2 to 60:40 based on...
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4224196 |
Flex resistant sidewall compounds
Pneumatic tire sidewall compositions are disclosed comprising blends of a halobutyl rubber, a high unsaturation rubber and an oil extended terpolymer of ethylene, propylene, and a diene wherein the...
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4222923 |
Adhesive composition and method of use
An adhesive composition consisting essentially of a poly (lower alkyl) methacrylate, a liquid plasticizer, an inert particulate filler, and a chlorinated rubber; and a method of using the same to...
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4220737 |
Paint composition
An air drying paint composition comprising a chlorinated polymer selected from the group consisting of chlorinated polydiolefin rubbers and chlorinated polyolefins as at least one ingredient of a...
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4206093 |
Process for the preparation of chlorinated polymers
A process for the preparation of chlorinated aliphatic polymers wherein chlorine-free polymers are chlorinated by using gaseous chlorine in chlorinated hydrocarbons as solvents and the chlorinated...
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4194999 |
Process for producing powdery rubber
A powdery rubber is produced by mixing an anionic or nonionic rubber latex with an aqueous solution of an anionic water soluble macro-molecular compound which is dissociated in water to give...
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4190613 |
Separating agent for rubber powders
A freeflowing rubber mixture which is stable against coalescence and cohesion comprising a vulcanizable rubber in powder form and a minor amount of an acrylonitrile polymer as a separating agent.
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4078022 |
5-Norbornene-2-methyl phosphites and phosphate
Bis(5-norbornene-2-methyl) phosphite, tris(5-norbornene-2-methyl) phosphite, and tris(5-norbornene-2-methyl) phosphate, as well as a mixture of the above esters are novel compositions of matter,...
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4048261 |
Vulcanizable compositions of a halogen-containing polymer and a diene-nitrile rubber having active halogen cure sites
Compositions comprised of a polymer blend of a halogen-containing polymer and a diene/nitrile rubber having active halogen cure sites are covulcanized using a common cure system. The...
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4008190 |
Vulcanizates of EPDM and diene rubber blends
Polymer blends of ethylene-higher α-olefin-polyene (EPDM) polymers with highly unsaturated diene rubbers are cured using sulfur and a N,N-(higher alkyl) thiocarbamylsulfenamide as a vulcanization...
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4005054 |
Production of polyolefin-reinforced rubber products
A flexible, homogeneous rubbery product comprising a matrix of a rubber selected from the group consisting of natural and synthetic elastomer in which there is uniformly dispersed at least 5% by...
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4000222 |
Mixture of benzene-soluble and benzene-insoluble chloroprene polymers wherein the former polymer is prepared in the presence of a dialkoxyxanthogendisulphide
Dialkoxyxanthogendisulphides, their production by reacting an alcohol and carbondisulphide in the presence of alkali and subsequent oxidation, use of these dialkoxyxanthogendisulphides as molecular...
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3984384 |
Process using dialkoxy-xanthogendisulphides as molecular weight regulators
Dialkoxyxanthogendisulphides, their production by reacting an alcohol and carbondisulphide in the presence of alkali and subsequent oxydation, use of these dialkoxyxanthogendisulphides as molecular...
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3974112 |
Foil laminating adhesive
An adhesive composition suitable for laminating thin foils to substrates, especially paper, is disclosed consisting essentially of an aqueous solution of a carboxylated vinyl acetate copolymer and...
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3968065 |
Vulcanizable polymer blends of a halogen-containing polymer and a carboxyl-containing polymer
Polymer blends of a halogen-containing polymer and a carboxyl-containing polymer are covulcanized using as the cure system (1) a metal oxy compound and (2) a quaternary ammonium salt or a...
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3965055 |
Free curing rubber composition
A vulcanizable rubber is modified by the addition of a resin at a temperature above the melting point of said resin. Shaped articles are formed from the resulting blend and cured without...
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3963653 |
Process for producing hydrocarbon resin and pressure-sensitive adhesives containing same
A process for producing a hydrocarbon resin (C) which comprises copolymerizing 100 parts by weight of vinyl aromatic hydrocarbons (A) containing more than 80% by weight isopropenyltoluene and from...
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