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| Number | Title | Issue Date |
| 7385008 | Abrasion resistant elastomeric compositions The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or air barrier articles. The compositions and articles made from those compositions of the invention can be described in any number of embod... | 06/10/2008 |
| 7300981 | Abrasion resistant elastomeric compositions The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or barrier articles. The compositions and articles made from those compositions of the inventions can be described in any number of embodime... | 11/27/2007 |
| 7238764 | Process for the co-oligomerisation of ethylene and alpha olefins A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins, which comprises the co-oligomerisation of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MX | 07/03/2007 |
| 7041746 | Accelerator system for synthetic polyisoprene latex The invention pertains to an accelerator system, such as an accelerator system for synthetic polyisoprene latex. The accelerator system comprises dithiocarbamate and thiourea and can produce synthetic polyisoprene films having a tensile strength of about 3,000 psi t... | 05/09/2006 |
| 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 amount of at least 9 weight percent of the coupled propylene copolymer. Ar... | 01/11/2005 |
| 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 groups. Further, the resin is both macroporour and monodis... | 11/11/2003 |
| 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 of zinc from the composition, and at least one ultra-acce... | 07/15/2003 |
| 6329435 | Process for preparing monodisperse, crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds The present invention relates to a process for preparing novel, monodisperse crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds, in particular heavy metal compounds or noble metal compounds.... | 12/11/2001 |
| 6229036 | Sulfanylsilanes Sulfanylsilanes of the formula X1 X2 X3 Si--A--S--SiR1 R2 R3 are prepared by reacting mercaptosilanes of the formula X1 X2 X3 Si--Alkyl--SH with chlorosilanes Cl... | 05/08/2001 |
| 6187857 | Dipping latex composition and rubber articles made therefrom by dipping A vulcanizable dip-forming rubber latex composition comprising an unsaturated nitrile-conjugated diene copolymer rubber latex, a sulfur-containing vulcanizer, and a vulcanization accelerator comprising at least one compound selected from (i) dithiocarbami... | 02/13/2001 |
| 6114468 | Synthetic resins for use in solid phase synthesis A polystyrene resin which is substituted in skeletal benzene rings thereof by a group of formula --CH2 --O--Ar1 --R I where Ar1 is an unsubstituted or substituted phenylene group and R is a group o... | 09/05/2000 |
| 6069208 | Scorch retarded, crosslinkable compositions of peroxide or azo compound curable thermoplastic polymers, elastomeric polymers or mixtures thereof containing hydroquinones, sulfur accelerators and peroxides or azo compounds A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such s... | 05/30/2000 |
| 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 R1, R2, R3 independently of one another denote H, (C1 -C4)alkyl, (C1 -C4) alkoxy, (C1 | 04/04/2000 |
| 6020437 | Propylene polymer and process for obtaining it Propylene polymer obtained by melt-blending of: 100 parts by weight of polypropylene; from 0.01 to 10 parts by weight of a functional compound (a) comprising at least 2 acrylate groups; at least 0.005 part by weight of a sulphur-containing compound (b) chosen ... | 02/01/2000 |
| 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 -olefin, (b) from 30 to 70 weight percent of at least one vinyliden... | 11/02/1999 |
| 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 allowed to react with a haloalkylalkoxysilane to form the sil... | 08/10/1999 |
| 5916977 | Chlorosulfonated ethylene--olefin copolymer composition A chlorosulfonated ethylene--olefin copolymer composition comprising a chlorosulfonated ethylene--olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar ... | 06/29/1999 |
| 5891956 | 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 groups, aza crown ether groups, oxy crown ethers groups, gua... | 04/06/1999 |
| 5869580 | Process for the preparation of crosslinkable thermoplastic and/or elastomeric polymer compositions with extensions of search time A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such s... | 02/09/1999 |
| 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 active compound, and having Mw of 100,000-1,000,000, a mono... | 12/01/1998 |
| 5830817 | Accelerator combinations A vulcanization accelerator combination based on di-(C6 -C12 alkyl)dithiophosphates for vulcanizing non-polar rubbers, comprising the following components: (a) a di-(C6 -C12 alkyl)dithiophosphate; (b) one or mor... | 11/03/1998 |
| 5736615 | Rubber vulcanization composition This invention relates to the discovery that tetrabenzylthiuram disulfide in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing... | 04/07/1998 |
| 5670693 | Dithiocarbamate salts and their use as vulcanization accelerators Salts of formula (III) ##STR1## wherein R1 represents CN or a C1 -C8 alkyl group, R2 a mononuclear C6 -C10 aryl group and R3 a C1 -C3 alkyl group or hy... | 09/23/1997 |
| 5658990 | Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers Monofunctional or multifunctional isothiocyanates having the general formula R--(N.dbd.C.dbd.S)x where R is any organic remainder; xࣙ1, or compounds which form such isothiocyanates under the influence of temperature are used in elastomeric co... | 08/19/1997 |
| 5587420 | Diene polymer obtained by adding a tin compound in the polymerization with an organolithium initiator In one of several methods of producing polybutadiene or a butadiene-styrene copolymer with an organolithium initiator, an organotin compound such as tetraallyltin, tetrabenzyltin and tetraphenyltin is added to the polymerization system in a period of grow... | 12/24/1996 |
| 5569719 | Vulcanizable partially hydrogenated nitrile rubber composition containing partially hydrogenated unsaturated nitrile-conjugated diene copolymer sulfur vulcanizer and tellurium dithiocarbamate vulcanization promotor A vulcanizable rubber composition including a partially hydrogenated unsaturated nitrile-conjugated diene copolymer having an iodine value of smaller than 25, a sulfur vulcanizer and a tellurium dithiocarbamate compound as a vulcanization promotor. This r... | 10/29/1996 |
| 5527860 | Process for producing a diolefin polymer or copolymer and a rubber composition containing such a diolefin polymer or copolymer A process for producing a diolefin polymer or copolymer, comprising the steps of polymerizing 55-100 wt % of a conjugated diolefin with 0-45 wt % of an aromatic vinyl compound as monomers in a hydrocarbon as a solvent, by using initiators: a reaction prod... | 06/18/1996 |
| 5475051 | Halobutyl/epoxidized rubber matrices reinforced with siliceous filler materials Vulcanizable elastomeric compositions comprise a halobutyl rubber matrix, an adhesion-promoting amount of a epoxidized natural rubber and a reinforcing amount of a siliceous inorganic filler material; the vulcanizates produced therefrom are well suited, f... | 12/12/1995 |
| 5466757 | Process for production of chlorinated ethylene-propylene copolymers A chlorinated ethylene-propylene copolymer having a chlorine content of 20 to 45% by weight and a Mooney viscosity (ML1+4, 100° C.) of 10 to 150 is produced by chlorinating in two or three stages, by contact with chlorine gas in an aqueous sus... | 11/14/1995 |
| 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 have reduced compression set and high tension values, in p... | 05/16/1995 |
| 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 atoms is substantially reduced by adding to the cure mix ... | 03/21/1995 |
| 5391635 | Rubber composition A rubber composition which comprises (1) 100 parts by weight of a rubber containing 60 parts by weight or more of styrene-butadiene rubber, (2) 20 to 180 parts by weight of a softening agent, (3) 0.5 to 5 parts by weight of at least one member selected from the gro... | 02/21/1995 |
| 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 derivative vulcanization accelerator and, optionally, (e) di- or... | 01/31/1995 |
| 5342900 | Process for the preparation of diene rubber vulcanizates Vulcanization of diene rubbers at a temperature of from 140° to 200° C. in the presence of 1 to 4.5 parts of a crosslinker having the formula ##STR1## wherein n denotes 2 or 6 and Bz denotes benzyl, in the simultaneous presence of a very small... | 08/30/1994 |
| 5334666 | Vulcanizable elastomer composition comprising epoxy group-containing elastomer, organic compound having at least two -C(X)-NH-C(Y)-bonds (X=O or S, Y=O or S), quaternary ammonium or phosphonium salt, and optionally a urea or thiourea compound A vulcanizable elastomer composition comprising an epoxy group-containing elastomer, and blended therewith (1) an organic compound having at least two bonds of the formula --C(X)'NH--C(Y)--, wherein X and Y are both oxygen or sulfur, or one of X and Y is ... | 08/02/1994 |
| 5332787 | Vulcanization process using basic zinc carbonate hydroxide A process is provided for vulcanizing a halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene utilizing a vulcanization mixture comprising a basic zinc carbonate hydroxide.... | 07/26/1994 |
| 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 nitrosamines. The unique curative package synergistically incr... | 07/05/1994 |
| 5296555 | Rubber composition of strong adhesion to metal and hose structure using the same Rubber compositions are disclosed which are tailored to exhibit high adhesion to brass, sufficient resistance to heat and to oil and great elasticity. A selected class of highly hydrogenated acrylonitrile copolymer rubbers are blended with specified amoun... | 03/22/1994 |
| 5248736 | Process for producing diene polymer with alkaline earth metal There are provided a process for producing a diene polymer having markedly improved tensil strength and wear resistance and further having improved heat build-up, refound resilience, processability and wet skid resistance, as well as a rubber composition ... | 09/28/1993 |
| 5191028 | Rubber composition comprising diene rubber material and vulcanization accelerators A rubber composition containing 100 parts by weight of a diene rubber material, 0.5 to 2.0 parts by weight of N-cyclohexyl-2-benzothiazyl sulfenamide, and 0.02 to 1.0 part by weight of a condensation product of n-butylaldehyde and aniline. Further disclos... | 03/02/1993 |
