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7612149 |
Vulcanizable chlorinated elastomer compositions with improved processing safety and cure rate
The instant invention is an improved cure system composition and a method for curing chlorinated elastomer compositions. The cure system composition includes a polymercapto crosslinking agent, an...
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7501476 |
Method for preparing polyolefins containing vinylidene end groups using azole compounds
Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically...
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7439309 |
Silver halide photographic light-sensitive material, photographic emulsion, and mercapto group-containing polymer compound used for them
Disclosed is a silver halide photographic light-sensitive material, which has at least one polymer compound having a nitrogen-containing aromatic ring having a mercapto group represented by the...
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7339007 |
Low sediment process for thermally reacting highly reactive polymers and enophiles
A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high...
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7241843 |
Rubber composition for tread
A rubber composition for a tread optimizing a vulcanization speed in a vulcanization step and, further, improving heat aging resistance is provided. A rubber composition for a tread comprising 20...
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7202307 |
EPDM composition and automotive brake system rubber component
A sulfur curing system EPDM composition in which one or more types of vulcanization accelerators selected from thiazole type and sulfenamide type accelerators and one or more types of vulcanization...
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6841620 |
Polyolefin composition with improved impact properties
The present invention includes a composition comprising a coupled impact propylene copolymer. Preferably, the coupled impact propylene copolymer has an elastomeric phase that is present in an...
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6838526 |
Modified conjugated diene polymer and method of producing the same and rubber composition
A novel modified conjugated diene polymer is obtained by polymerizing a conjugated diene compound with a specified catalyst consisting of components (a)-(c) and then reacting with at least one...
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6825275 |
Rubber composition for adhering to steel cords
A rubber composition for adhering to steel cords, having excellent heat-resistant adhesion and moist heat-resistant adhesion, as well as initial adhesion, and performance at a level comparable to...
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6753383 |
Removal of free aldehydes
A process for reducing free aldehydes in dispersions, suspensions, emulsions and solutions which comprises including therein thioamine compound of the formula IV and optionally a thioamine of the...
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6593432 |
Rubber compositions and hoses
A sulfur vulcanizing system rubber composition comprises EPDM, zinc as a vulcanization accelerator activator, at least one thiazole type vulcanization accelerator serving to control the dissolution...
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6441089 |
Water-soluble polymers and compositions thereof
Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid...
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RE37527 |
Heat-resistant rubber composition
A heat-resistant rubber composition of the invention is a vulcanizable composition comprising a specific ethylene-α-olefin-nonconjugated polyene copolymer rubber (A) and an organic peroxide (B)....
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6330897 |
Pneumatic tire containing a vulcanization accelerator
A pneumatic tire formed by using a rubber composition comprising a vulcanization accelerator represented by the following general formula: ##STR1## wherein R 1 represents a hydrogen atom, an alkyl...
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RE37105 |
Lubricants containing ashless antiwear-dispersant additive having viscosity index improver credit
A graft copolymer is disclosed. The copolymer is prepared by the interpolymerization of a mixture of monomers comprising ethylene, a C 3 to C 12 alpha monoolefin, and a polyene being a member...
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6197890 |
Rubber composition containing SBR rubber, softener and a bis benzothiazolyl disulfide vulcanization accelerator
The present invention provides a rubber composition for a tire tread which comprises 100 parts by weight of a rubber component comprising 50 parts by weight or more of SBR and the remaining amount...
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6186204 |
Pneumatic tire with tread formed with a rubber compound containing a rubber component, a softener and a benzothiazole compound type vulcanization accelerator
A pneumatic tire comprising a tread portion formed by using a rubber composition which comprises: a rubber component comprising 50 parts by weight or more of SBR in 100 parts by weight of the...
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6140427 |
Vulcanization accelerators suitable for the introduction of polar substituents
New vulcanization accelerators, corresponding to the formula ##STR1## are particularly suitable for the production of vulcanized rubbers modified with lateral polar groups.
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6075098 |
Pneumatic tire comprising a foamed rubber layer containing a vulcanization accelerator and comprising a closed cell and solid rubber phase
A pneumatic tire comprising a tire tread wherein a foamed rubber layer is provided at least in the portion substantially contacting with a road surface, and wherein said foamed rubber layer, which...
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6069209 |
Coordinating resins and use thereof in selectively recovering metals
Chelating resins for use in selectively binding heavy metals, having the structure ##STR1## where Ps represents a poly(divinylbenzene), and R represents an organic radical containing at least one N...
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5939493 |
Pneumatic tire
A rubber composition comprising 100 parts by weight of a rubber component which comprises at least one type of rubber selected from the group consisting of natural rubber and diene synthetic...
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5900467 |
Method of processing rubber compositions containing 2-benzothiazyl-3-(propane-1,2-diol) disulfide
The present invention relates to a method of processing rubber compositions containing 2-benzothiazyl-3-(propane-1,2-diol)disulfide.
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5859142 |
Rubber composition for reinforcing bead of tires which contains butadiene rubber with syndiotactic crystals, carbon black, sulfur and sulfenamide accelerator
A rubber composition suitable for reinforcing beads of tires, having high hardness, high durability and high aging resistance, which comprises a rubber component containing 30 to 70% by weight of a...
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5830817 |
Accelerator combinations
A vulcanization accelerator combination based on di-(C 6 -C 12 alkyl)dithiophosphates for vulcanizing non-polar rubbers, comprising the following components: (a) a di-(C 6 -C 12 ...
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5744552 |
Sulfur vulcanizable rubber contining sodium thiosulfate pentahydrate
A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100° C. to...
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5710211 |
Process for producing vinyl alcohol polymer
According to the present invention, there are provided a process for producing a vinyl alcohol polymer comprising reaction of a vinyl ester polymer (A) having an epoxy group with a compound (B)...
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5693720 |
Solid-phase synthesis utilizing photochemical carbon-sulfur bond cleavage of thioethers
A method for photochemical cleavage of carbon-sulfur bonds in conjunction with solid-phase synthesis utilizing a deoxygenated solvent and light to cleave the carbon-sulfur bond from a heterogeneous...
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5688871 |
Rubber composition containing a flavan compound and a method for producing a vulcanized rubber containing same
The present invention relates to a method for producing a vulcanized rubber by compounding in a kneading step at a relatively high temperature, a rubber and a flavan compound of the formula (I)...
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5686537 |
Controlling premature curing of vulcanizable halogen-containing polymers
Controlling premature curing of vulcanizable halogen-containing polymer compounds.
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5624988 |
Process for the production of polymer-bound rubber chemicals
Process for the production of polymer-bound rubber chemicals, characterized in that the rubber chemicals and optionally additives are finely dispersed in a low molecular weight polymerizable...
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5597785 |
Succinimide derivatives of 2,5-dimercapto-1,3,4-thiadiazole
Disclosed the novel compounds prepared by reacting 2,5-dimercapto-1,3,4,-thiadiazole with maleic anhydride and N-polyethylene amine-substituted succinimide. The compounds are dispersants or...
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5534171 |
Process for making a polymeric lubricant additive designed to enhance anti-wear, anti-oxidancy, and dispersancy thereof
A polymeric lubricant additive that behaves as a viscosity index improver and imparts enhanced anti-oxidancy, dispersancy, and anti-wear properties to said lubricant oil has been prepared. The...
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5483006 |
Nitrosamine-free curing of chloroprene/sulfur copolymers
Chloroprene/sulfur copolymers peptized either by xanthogen sulfides alone or in combination with mercaptobenzothiazole in an alkaline dispersion are cured in the presence of...
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5472627 |
Polymeric lubricant additive designed to enhance anti-wear, anti-oxidancy, and dispersancy thereof
A polymeric lubricant additive that behaves as a viscosity index improver and imparts enhanced anti-oxidancy, dispersancy, and anti-wear properties to said lubricant oil has been prepared. The...
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5451680 |
Bis-(2,5-polythio-1,3-4-thiadiazoles), rubbers containing such compounds, and a method of preparation of bis-(2,5-polythio-1,3,4-thiadiazoles)
This invention relates to bis-(2,5-polythio-1,3,4-thiadiazoles), a method for their preparation and their use in rubber compounds. Use of these compounds provide for excellent vulcanization of...
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5416167 |
Vulcanizable rubber compositions containing salts of partial carboxylic acid esters
Vulcanizable rubber compositions are disclosed which contain partial polycarboxylic acid esters or their salts. Vulcanizates obtained from the compositions are readily processible and are found to...
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5399633 |
Additives for the cure with peroxides of fluoroelastomers containing bromine or idodine to reduce alkylhalo emissions
The emission of the highly toxic volatile products, such as methyl bromides or iodides, or ethyl bromides or iodides, during the cure with peroxides of fluoroelastomers containing bromine or iodine...
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5391621 |
1,3,4-thiadiazole curing systems for chlorine containing polymers
The present invention provides an improved curing system for chlorinated polymers and blends thereof with more highly unsaturated eleastomers, using an organopolysulfide derivative of...
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5385980 |
Curable halobutyl rubber/poly-epihalohydrin rubber blends
A curable halobutyl rubber/polyepihalohydrin rubber blend comprises a cure system consisting essentially of (a) sulfur, (b) sulfur accelerator, (c) zinc-containing promoter, (d) urea or urea...
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5328953 |
Rubber compositions with alkoxyalkanoic acid having improved processability vulcanisate properties
Alkyloxyalkanoic acids, salts or esters having the formula R 1 --O--(CR 3 R 4 ) x CO 2 R 2 where R 1 represents an alkyl or alkenyl group, or a hydroxy- or alkoxy- substituted alkyl or...
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5326828 |
Tetrabenzylthiuram disulfide/urea cured elastomeric composition
The current invention relates to the use of tetrabenzylthiuram disulfide/urea curative package for thermosetting rubber elastomers in an environmentally sound method of eliminating undesirable...
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5304587 |
Water resistant security ink composition
A security composition for use with an ink composition including diphenyl guanidine and acrylic resin. The ink composition may further include a glycol ether and a plasticizer and can be printed on...
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5284713 |
Composite material of metal and rubber
A composite material comprising a rubber composition and a metal material, wherein the rubber composition contains, per 100 parts by weight of rubber, 0 part by weight of a metal salt of an organic...
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5272213 |
Scorch retardant polyacrylate elastomers
This invention pertains to scorch retardant systems for peroxide curable elastomers. Polyunsaturated monomers copolymerizable with the elastomer in the presence of peroxides are mixed with...
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5262488 |
Rubber vulcanization composition with bis-(2,5-polythio-1,3,4 thiadiazole)
This invention relates to the discovery that bis-(2,5-polythio-1,3,4-thiadiazole) in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of...
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5262490 |
Fluoroelastomer composition with organo-onium compounds
A fluoroelastomer composition is disclosed comprising an elastomeric polymer and a combination of a sulfonium compound and an ammonium or phosphonium compound. Shaped articles comprising the...
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5256738 |
Functional rubber-based structural adhesive compositions
A one-package stable rubber based curable composition contains: (a) a functional rubber polymer selected from the group consisting of functional homopolymers of polybutadiene, isoprene or...
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5241010 |
Acrylic rubber composition containing trithiocganuric acid, a metal suit of dithiocarbamic acid and a thiuram sulfide
A vulcanizable acrylic rubber composition comprising an acrylic rubber containing an active halogen group and a carboxyl group, trithiocyanuric acid, and a metal salt of dithiocarbamic acid alone...
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5232990 |
Melamine derivative cross-linking agent
Derivatives of melamine are disclosed having a carboxylic acid substituent on an amine nitrogen appended to the triazine ring. The compounds can be used to cross-link polymers having epoxy groups...
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5219904 |
Crosslinkable, fluorine-containing elastomer composition
A cross-linkable, fluorine-containing elastomer composition comprising a fluorine-containing elastomer containing at least one of iodine and bromine in the molecule, an organic peroxide having a...
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