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7550539 |
Partially neutralized chlorosulfonated polyolefin elastomers
At least partially neutralized chlorosulfonated ethylene/alpha-olefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from...
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7375164 |
Use of metal alkanedithiols as crosslinking agents for unsaturated rubbers
The present invention relates to vulcanizing agent containing metal alkanedithiols for unsaturated rubbers.
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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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7319124 |
Vulcanizing agents based on organic sulphur-nitrogen compounds for unsaturated rubbers and mixtures of these
The invention relates to novel organic sulphur-nitrogen compounds, their preparation, and use as vulcanizing agents for unsaturated rubbers and mixtures of these.
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7273908 |
Chlorosulphonated ethylene-α-olefin copolymer and method for producing the same
A chlorosulphonated ethylene-α-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of −50° C. or lower...
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7140413 |
Method of modifying a fluoropolymer and articles thereby
A fluoropolymer is modified by contacting it with a modifying composition preparable from components comprising a phase transfer catalyst and at least one of a sulfide or disulfide salt, and...
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7119164 |
Method for preparing sulfonated organic porous material
A sulfonated organic porous material in which at least 0.5 mg-equivalent/g (on a dry basis) of sulfonic acid groups has been introduced can be obtained by causing a gaseous substance containing...
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7022775 |
Resins based on polystyrene-functionalized methyl esters groups of L-tyrosine and their uses
The present invention relates to resins based on functionalized polystyrene, to the method for the production thereof, to the use thereof for producing columns for purifying anti-factor VIII...
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6894093 |
Materials free of endorine disruptive chemicals
The present invention describes plastic materials and food additives that are free or substantially free from endocrine disruptive chemicals. The plastic materials may be used in products which are...
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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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6706822 |
Method of producing polyethylene resins for use in blow molding
A method of processing polyethylene for use as an extruded blow molding resin to improve the properties and processability thereof is accomplished by modifying a polyethylene resin having a...
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6506848 |
Rheology modification of elastomers
The present invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one elastomer comprising ethylene and at least one comonomer which is...
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6500508 |
Flame-retardant resin composition, and insulated wire, shielded wire and insulating tube comprising the composition
A flame-retardant resin composition for insulated wires, shielded wires and insulating tubes which are used in the field requiring high-frequency current transmission, for example, in the field of...
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6391978 |
Process for the synthesis of hydroxyl-end group functionalized polybutadienes
This invention relates to a process for the synthesis and purification of hydroxyl-end group functionalized, linear, non-crosslinked polyolefins without pendant chain branched groups, and...
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6372855 |
Polymer containing isobutylene as repeating unit and rubber composition containing the same
A modified polybutene(polyisobutylene) containing isobutylene repeating units and having, in the main chain, at the ends, and/or at the side chains of the polymer chain thereof, free radicals...
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6359077 |
Process for producing high melt flow polymers
Disclosed is a process making polyolefin pellet products that contain at least one unreacted free radical generator which, when heated, undergo chemical degradation producing a low viscosity...
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6245860 |
Rubber composition which contains irregular-shaped hollow inorganic particles and article having component thereof
A rubber composition which contains substantially hollow, irregularly-shaped particles, and/or fragments thereof derived from a surface-modified carbon black aggregate from the which the carbon...
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6206364 |
Paper transport belt of alkylated chlorosulfonated polyethylene
A paper transport belt and a paper handling apparatus containing a paper transport belt which is made from a composition containing an alkylated chlorosulfonated polyethylene polymer.
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6077914 |
Process for modifying the rheology of polyolefins
The molecular weight of a polyolefin such as polypropylene is reduced, as evidenced by lowered viscosity and increased melt flow rate, by treatment with an inorganic peroxygen selected from metal...
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6037445 |
Process for the continuous production of functionalized polymers
A continuous process for functionalizing polymers is disclosed, wherein (A) a liquid comprising the polymer and a gas comprising a functionalizing agent are continuously introduced into a...
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5969053 |
Higher modulus compositions incorporating particulate rubber
A plastic article having a number of surfaces with at least one surface being modified by contacting that surface with a reactive gas atmosphere containing F 2 , Cl 2 , O 2 , Ozone, SO 3 ,...
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5939495 |
Process for producing polyolefin having functional group at its terminal
The present invention relates to a process for producing a polyolefin having a functional group at its terminal and the object thereof is to provide a process in which the above polyolefin can be...
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5919275 |
Fuel and lubricant additives, their preparation and fuel or lubricant compositions containing these additives
Fuel or lubricant additives based on reaction products of an ethylenically unsaturated poly-1-alkene derived from one or more 1-alkenes of 3 to 24 carbon atoms and from 0 to 50% by weight of...
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5916977 |
Chlorosulfonated ethylene-α-olefin copolymer composition
A chlorosulfonated ethylene-α-olefin copolymer composition comprising a chlorosulfonated ethylene-α-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate,...
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5780531 |
Surface-modified, oxidic or siliceous fillers and their use
The surface-modified fillers according to the invention are manufactured by treating oxidic or siliceous fillers with a silane of the formula R 1 R 2 R 3 Si--X 1 --(--S x --Y--) m --(--S x ...
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5773523 |
1,3,4-thidiazole ether curing systems for chlorine containing polymers
The present invention provides an improved curing system for chlorinated polymers using as a curing agent alkyl ether and alkyl thioether derivatives of 2,5-dimercapto)-i,3,4-thiadiazole and of its...
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5717039 |
Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least ethylenic double bond per polymer chain,...
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5677381 |
Ethylene copolymer-monofunctional ionomer compositions
In one embodiment of the present invention, there is provided a composition comprising a major amount of an ethylene alpha olefin copolymer and a minor amount of a lower molecular weight ethylene...
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5530073 |
Process for increased peroxide efficiency in controlled rheology polypropylene resin
This invention relates to a peroxide process for preparation of controlled rheology polypropylene resins wherein 2,5-dimethyl-2,5-bis(t-butylperoxy)hexane is the peroxide and the melt flow rate is...
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5455307 |
Polymeric stabilizers for polyolefins
The present invention provides for polymeric stabilizers which are the acid-catalyzed reaction product of a phenolic compound or a ring substituted aromatic compound and an olefin polymer...
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5448000 |
End-quenching the living polymerization of isobutylene with acetyl sulfate
A one-pot method of preparing sulfonic acid-terminated polyisobutylene by sulfonation with acetyl sulfate of living polyisobutylene in a single step. The method permits preparation of sulfonated...
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5393844 |
Chlorinated polyethylene rubber composition containing a 2,4,6-trimercapto-1,3,5-triazine dicyclohexylamine salt
Rubber compositions having high tensile modulus at 100% and strong metal adhesion. The rubber compositions include chlorinated polyethylene rubber and/or its derivative reformed with maleic...
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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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5376730 |
Thermoplastic graft copolymer and process for preparing the same
There are provided a thermoplastic graft copolymer comprising, as main chain, a polymer having a glass transition temperature of 10° C. or below and, as side chain, an aromatic oligomer having a...
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5310818 |
Vulcanizable chlorine-containing rubber compositions containing triazinethiol amine salt vulcanizing agents
A vulcanizable rubber composition containing (i) (A) a chlorine-containing rubber and (B) a triazinethiol.amine salt or (ii) (a) a chlorine-containing rubber, (b) a triazinethiol as a vulcanization...
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5306781 |
Carboxylic acid modified polyethylene membrane activated by a linker coupled amide
Activated carboxylic acid modified polyethylene membranes useful in the C-terminal sequencing of a peptide are disclosed. The membranes comprise activated carboxylic acid modified polyethylene...
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5296553 |
Process for isolation of low molecular weight chlorinated and chlorosulfonated resins
Low molecular weight olefin resins are blended with small amounts of high molecular weight olefin resins and the blends are chlorinated or chlorosulfonated. Melt and film strengths of the resultant...
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RE34514 |
Electrically conductive composition of polyheteroaromatic compounds and polymeric sulfates
A composition comprising (a) at least one oxidized polycationic polyheteroaromatic compound and (b) at least one polyanion of a film-forming thermoplastic polymer containing sulfated alcohol groups...
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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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5252677 |
Functionalized olefin polymers
A functionalized polymer having excellent adhesion, printability, and compatibility in polymer blends or the like which are obtained by introducing an epoxy group, a hydroxyl group or a sulfonic...
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5242988 |
Process for chlorination and chlorosulfonation of olefin polymers in the presence of fluorinated surfactants
Polymer agglomeration is prevented in chlorinations and chlorosulfonations of olefin polymers performed in perfluorinated media by addition of fluorinated surfactants.
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5206304 |
Vulcanizable rubber mixtures containing bis-(2,4-organylthio-triazine-6-yl) polysulfides
Bis(2,4-organylthio-s-triazine-6-yl) polysulfides of the general Formula (I) ##STR1## prepared from compounds of the general formula (II) ##STR2## and from an ammonium or alkali polysulfide and the...
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5200102 |
Multifunctional olefin copolymer and lubricating oil composition
An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one C 3 -C 10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated...
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5185401 |
Monofunctional polymers of olefins and block copolymers obtained therefrom
Functional polyolefins containing a terminal functional group; the block copolymers that can be obtained from such polyolefins by reaction with polymers reactive with the functional groups and the...
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5120804 |
Easily crystallizable polyphenylene sulfide copolymer and preparation thereof
There are disclosed a class of halogen-ended polyalkylene glycols and halogen-ended polyolefins (II) which are copolymerizable with polyarylene sulfides or sulfone-based polymers. These...
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5037895 |
Process for improving thermoplastic hydrocarbon polymers with polysulfonazide and free radical catalyst
A process for improving the properties of a high molecular weight hydrocarbon polymer by reducing the molecular weight thereof and thereby reducing the melt viscosity while retaining the...
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5036142 |
Process for making electro-optically active polymers
The invention provides a method for making optionally active polymers having a carbon-to-carbon backbone chain and pendant "transducer" groups having an azo linkage which involves azo-coupling, in...
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5030695 |
End-capped polymer chains, star and graft copolymers, and process of making same
Ziegler-Natta catalyzed polymer chains are end capped with at least one functional group-containing unit which is otherwise essentially absent from said polymer chain. The chains can be grafted to...
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5004787 |
Vulcanizable rubber composition with triazine thiols
A vulcanizable rubber composition containing (i) (A) a chlorine-containing rubber and (B) a triazinethiol.amine salt or (ii) (a) a chlorine-containing rubber, (b) a triazinethiol as a vulcanization...
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H000818 |
Elastomeric compositions (C-1911)
This invention relates to extrusion and injection moldable type elastomeric compositions having a viscosity at 200° C. at 0.73 sec -1 of about 8×10 4 to about 8×10 6 poises. The compositions...
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