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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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7592386 |
Dual cure hydrotalcite containing fluoropolymer compositions
Provided is a curable fluoropolymer composition comprising a fluoropolymer comprising interpolymerized units of tetrafluoroethylene, perfluoro(aliphatic vinyl)ether, and a nitrogen-containing cure...
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7534839 |
Sequentially terminated elastomers
Anionically-polymerized living polymers are sequentially functionalized with certain agents X′ and Y′. A method of preparing a functionalized polymer comprising the steps of reacting the...
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7393468 |
Adhesive with differential optical properties and its application for substrate processing
An adhesive adapted with particular optical properties, and its use to couple a substrate to a substrate holder during substrate processing are disclosed. After processing the substrate, the...
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7388050 |
Proton conductor and method for producing the same
A hyperbranch polymer is bonded to a pore surface existing on a SiO 2 glass porous body, such that the hyperbranch polymer is bonded to the pore surface only at the base end moiety. The...
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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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7208553 |
Fluoropolymer curing system
A composition of a fluoropolymer comprising interpolymerized units of nitrogen-containing cure site monomer and a catalyst comprising a compound having the formula:
wherein HA is an acid, each...
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7160955 |
Sulfoxides or sulfones grafted onto polymers
Polymers grafted with a compound of formula I, formula (I) wherein the general symbols are as defined in claim 1, have outstanding stability against oxidative, thermal, dynamic, light-induced...
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6921784 |
Polycarbonate-based molding material and optical disk substrates
A polycarbonate resin molding material containing (A) 100 parts by weight of a polycarbonate resin and 0.001 to 1.0 part by weight of a mold release agent (B) which is composed of a fatty acid...
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6890995 |
Fluoropolymer compositions
Compositions comprising a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer and a catalyst composition are provided. The catalyst composition includes...
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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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6794457 |
Fluoropolymer curing system containing a nitrogen cure site monomer
A composition comprising a fluoropolymer comprising interpolymerized units derived from a nitrogen-containing cure site monomer; and a catalyst composition comprising a compound having the general...
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6794428 |
Carbon black coupler
A coupler is described for use in carbon black filled rubber compositions. The coupler includes an amine group and a thiol group or a polysulfidic linkage. The coupler improves the interaction of...
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6784251 |
Emulsible polyolefin wax
An emulsible polyolefin wax having sufficient functionality to be emulsible in an aqueous medium, a melt viscosity of less than 1,000 cps at 190° C., and an emulsion light transmittance of at...
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6777502 |
Rheology modification of polymers prepared using metallocenes
Coupled polymers are prepared by a process comprising heating an admixture containing (1) at least one polyolefin comprising ethylene and optionally at least one comonomer and (2) a coupling amount...
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6646059 |
Process for removing iron-and rhodium-containing catalyst residues from hydrogenated nitrile rubber
A process is provided for the removal of iron- and rhodium-containing residues from a solution of hydrogenated nitrile rubber. The process utilizes an ion-exchange resin having thiourea functional...
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6617390 |
Method of making synthetic hydrophilic polymers and products resulting therefrom
The present invention involves a method of making a multiblock copolymer containing two or more types of sequences of derivatives of acrylic acid with at least one derivative being acrylic acid...
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6599675 |
Polyimides and polyamic acids
A polyimide having a repeating unit of the general formula (I) and a polyamic acid having a repeating unit of the formula (IV): (wherein, R 1 and R 2 represent H or a C1 to C20 alkyl group,...
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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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6284842 |
Coupling of blends of α-olefin/vinyl aromatic monomer or hindered aliphatic vinyl monomer interpolymers with polyolefins
The invention includes a process of preparing a coupled polymer blend comprising heating an admixture containing (1) a polymer blend containing: (A) from 1 to 99 weight percent of one ore more...
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6277926 |
Rubber compounds containing aromatic ketone polysulfides
The present invention relates to rubber compounds containing aromatic ketone polysulfides of the formula: ##STR1## wherein R is selected from the group consisting of alkyls having from 1 to 18...
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6274689 |
Random isomonoolefin/allyl styrene copolymers and functionalized derivatives thereof
The invention provides a copolymer of an isomonoolefin having from 4 to 7 carbon atoms and containing a copolymerized alkenyl styrene moiety represented by the formula I: ##STR1## where m=0-2,...
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6239231 |
Chemical amplifying type positive resist composition
A chemical amplifying type positive resist composition, excellent in adhesion to a substrate and good in resist performances and suitable for exposure using a KrF excimer laser, ArF excimer laser,...
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6229036 |
Sulfanylsilanes
Sulfanylsilanes of the formula X 1 X 2 X 3 Si--A--S--SiR 1 R 2 R 3 are prepared by reacting mercaptosilanes of the formula X 1 X 2 X 3 Si--Alkyl--SH with chlorosilanes Cl--SiR 1 R 2 R 3...
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6221975 |
Process for preparing random copolymer functionalized at both terminals
This invention relates to a polymer having functional groups at both terminals comprising the steps of: preparing a difunctional initiator by recating divinyl aromatic material and an...
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6211302 |
Rheology modification of interpolymers of alpha-olefins and vinylidene aromatic monomers
The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha olefin and vinyl aromatic monomer and (2) a...
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6207764 |
Halogenated elastomer compositions
Rubber compositions in which the rubber is a halogenated butyl elastomer are crosslinkable by virtue of containing a crosslinking agent such as zinc oxide and an accelerator which is a salt of an...
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6162875 |
Low nitrosamine systems for rubber vulcanization
A metal dialkyldithiocarbamate or other such compound including a group of the formula R 2 NCS-- or R 2 NS-- is useful as a rubber accelerator/vulcanizing agent, wherein each R is C 5 -18...
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6114452 |
Perfluoroelastomer composition having excellent heat stability
Perfluoroelastomer compositions are provided which have excellent high temperature properties. The perfluoroelastomer component of the compositions are copolymers having a plurality of...
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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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6046349 |
Oligomeric organosilicon compounds, their use in rubber mixtures and for the production of shaped articles
Oligomeric organosilicon compounds are disclosed of the formula I ##STR1## wherein R 1 , R 2 , R 3 independently of one another denote H, (C 1 -C 4 )alkyl, (C 1 -C 4 ) alkoxy, (C 1 -C 4 )...
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6028132 |
Antistatic agents, coatings and adhesives
Antistatic agents, adhesives and coatings with high antistatic properties under low humidity and temperature, which contain a quaternary ammonium salt of formula I: ##STR1## wherein each of R 1 , R...
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5977271 |
Process for preparing thermoset interpolymers and foams
The subject invention provides a thermoset elastomer comprising a crosslinked pseudorandom or substantially random interpolymer of: (a) from 15 to 70 weight percent of at least one α-olefin, (b)...
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5936112 |
Mixtures consisting of bis (silylorganyl) polysulfans and silyorganylthiocyanates, their production, and use
Mixtures are disclosed of bis(silylorganyl)polysulfanes and silylorganylthiocyanates, which are produced by reacting polysulfanes with cyanides. The inorganic thiocyanate formed is subsequently...
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5925716 |
Polymers from unsaturated acid monomers containing amine-sulfide moiety
Polymers having amine-thiol terminal moieties are provided. The amine-thiol terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations. The...
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5914377 |
Method for the production of diene rubbers in the gas phase
Diene rubbers are produced in the gas phase by first polymerizing the dienes or diene mixtures in the presence of a catalyst system, which is based on rare earth compounds, at temperatures of from...
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5844050 |
Modified conjugated diene polymer, process for producing same and composition comprising same
A modified polymer prepared by terminally modifying a conjugated diene polymer obtained by polymerization using a lanthanoid-containing catalyst in an organic solvent, with an N-substituted amino...
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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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5824749 |
Fluorine-containing elastomer composition
A fluorine-containing elastomer composition, which comprises a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) or perfluoro (lower alkoxy-lower alkyl vinyl ether) and...
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5756590 |
Process for preparation of N-halothiosulfonamide modified terpolymers
The subject invention discloses a process for preparing an N-chloro(or bromo)thio-sulfonamide-modified terpolymer which comprises reacting: (a) a terpolymer of ethylene, an α-olefin containing...
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5717038 |
Tire treads with increased tread life, and method of manufacturing same
A tire tread made for polydiene rubber crosslinked with 1,2-bis(N,N-dibenzylthiocarbamoyldisulfido)ethane and method of producing the same.
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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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5686536 |
Sulfur-containing amine compositions and agents for vulcanizing rubber
A vulcanizable composition comprises sulfur-vulcanizable rubber, sulfur or a sulfur-donor, a zinc compound, and a sulfur-containing amine of the formula R 1 --S n --R--NR 2 R 3 wherein R is a...
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5677389 |
Perfluoroelastomer composition having enhanced curing performance
Curable perfluoroelastomer compositions are provided which comprises a perfluoroelastomer, a curative, and an organic or inorganic ammonium salt which decomposes between 120°-225° C.
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5670693 |
Dithiocarbamate salts and their use as vulcanization accelerators
Salts of formula (III) ##STR1## wherein R 1 represents CN or a C 1 -C 8 alkyl group, R 2 a mononuclear C 6 -C 10 aryl group and R 3 a C 1 -C 3 alkyl group or hydrogen; and of formula (IV)...
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5589517 |
Modified ion exchange resins and use thereof
A modified strongly acidic ion exchange resin of a sulfonic acid type is disclosed. Modification is conducted by ionically binding a particular N,N-di-substituted mercaptoalkylamine to a strongly...
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5573828 |
Wrinkle finish powder coating
The use of cyclamic acid as a catalyst for the curing of hydroxyl-functional resins having a functionality greater than 2 provides a wrinkle finish. The hydroxy-function may be present in...
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5548032 |
Crosslinking agent for acrylic rubber
A crosslinking agent suitable for acrylic rubbers, particularly for acrylic rubbers containing units of a cyanoacetic acid comonomer or a malonic acid comonomer for imparting a crosslinkability,...
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5492977 |
Preparation of amino terminated polyacrylics
Amino terminated polyacrylic acids and polyacrylic acrylates are prepared by free radical polymerization of the acid or acrylate monomers with t-Boc-aminoethanethiol as a chain transfer control...
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