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| Number | Title | Issue Date |
| 8268930 | EPDM production and reformation process for rubber products The invention constituting the subject matter of this application is related to the production method and process regarding any and all products created by forming the EPDM rubber including a mixture of ethylene, propylene and diene by using heat and particularly th... | 09/18/2012 |
| 8258241 | Method for producing modified conjugated diene polymer, modified conjugated diene polymer, and rubber composition A method for producing a modified conjugated diene polymer includes a modification step (A) that subjects a conjugated diene polymer having a cis-1,4-bond content of 98.5% or more and possessing an active end to a modification reaction to introduce an alkoxysilane c... | 09/04/2012 |
| 7838601 | Partially neutralized chlorosulfonated polyolefin elastomers Partially neutralized chlorosulfonated polyolefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from polyolefin elastomer base resins selected from the group consisting of propylene/ethylene copolymers, ethylen... | 11/23/2010 |
| 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 |
| 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 to 90 parts by weight of silica, 0.5 to 2 parts by weigh... | 07/10/2007 |
| 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 accelerators selected from dithiocarbamate type and thiuram type acc... | 04/10/2007 |
| 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 and/or ozone-induced degradation [R1—SOm... | 01/09/2007 |
| 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 |
| 7041745 | Addition of polar polymer to improve tear strength and processing of silica filled rubber A vulcanizable rubber composition is provided that comprises an elastomer, a reinforcing filler comprising silica or a mixture thereof with carbon black, a silica dispersing aid comprising about 0.1 to about 15 phr poly(vinyl acetate) (PVA), and a cure agent. The ad... | 05/09/2006 |
| 7019065 | Large sized carbon black particles to reduce needed mixing energy of high hardness, stiff tire compositions A reinforced high viscosity rubber composition having improved processability such as reduced mixing cycles contains large sized particles of carbon black. The carbon black has low structure and a low DBP absorption number as well as a low iodine number. The rubber ... | 03/28/2006 |
| 7015293 | Cycloolefin addition copolymer and optical transparent material A cyclic olefin addition copolymer obtained by copolymerizing a cyclic olefin compound having a side chain substituent group with a ring structure, such as endo-tricyclo[4.3.0.12,5]deca-3,7-diene or endo-tricyclo[4.3.0.12,5]deca-3-ene, with ano... | 03/21/2006 |
| 6943220 | Rubber compositions and their uses This invention relates to a composition comprising (A) an ethylene-α-olefin having 3 to 20 carbon atoms-non-conjugated polyene copolymer, (B) a specific fine-powdered silicic acid and/or a silicate having a specific surface area of 5 to 500 m2/g (BET ads... | 09/13/2005 |
| 6939921 | Colorable elastomeric composition Transparent and colorable elastomeric compositions are provided. The transparent elastomeric compositions can be covulcanized with rubbers such as polybutadiene, polyisoprene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, isoprene-butadiene rubber, or... | 09/06/2005 |
| 6921563 | Multi-layer laminate, packaging material and packages made therefrom A multi-layer laminate comprising at least one layer of fiber material and at least one layer of plastic laminated thereto, which plastic layer comprises at least 50 weight percent of a cycloolefin copolymer. Also disclosed are packaging materials and packages made ... | 07/26/2005 |
| 6916888 | Rubber composition A rubber composition comprising a vulcanizable rubber, a reinforcing filler, a softening agent, and other reagents for rubber to which is added in a specific amount of a sulfur compound having the formula (I): —(SxR1)n—... | 07/12/2005 |
| 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 |
| 6825282 | Diene rubber compounds for improved rubber moldings This invention relates to vulcanizable diene rubber compounds with a high capacity for the addition of sulfur to be varied while processing safety is maintained, for the production of improved rubber moldings, particularly tire components. ... | 11/30/2004 |
| 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 the carbon black with the rubber as measured by a decrease in the tan ... | 09/21/2004 |
| 6747099 | Tack free surface cures of polymers by organic peroxides in the presence of air Compositions are disclosed which comprise mixtures of at least one compound selected from silicone elastomers, bis-, tri- or higher polymaleimides and/or bis-, tri- or higher polycitraconimides, and at least one compound selected from p-phenylene-diamine based antio... | 06/08/2004 |
| 6620875 | Rubber compositions and method for increasing the mooney scorch value A rubber composition is disclosed wherein the rubber composition contains at least (a) a rubber component; (b) a silica filler; (c) a coupling agent; (d) a cure-enhancing amount of at least one polyalkylene oxide; and (e) at least one high molecular weigh... | 09/16/2003 |
| 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 |
| 6521713 | Vulcanizable EPDM containing rubber composition A rubber composition is disclosed containing an ethylene-propylene-nonconjugated diene copolymer rubber (or a blend of an ethylene-propylene-nonconjugated diene copolymer rubber and a diene rubber), a specific alkoxysilane compound, and amorphous silica p... | 02/18/2003 |
| 6518367 | Rubber composition A rubber composition comprising a vulcanizable rubber, a reinforcing filler, a softening agent, and other reagents for rubber to which is added in a specific amount of a sulfur compound having the formula (I): --(Sx R1)n -- (I... | 02/11/2003 |
| 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 selected from alpha olefins having at least 3 carbon atom... | 01/14/2003 |
| 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 high-density wiring of internal circuits in electronic app... | 12/31/2002 |
| 6492454 | Rubber composition containing rubber, mercapto-triazine and epoxy grafter polymer A rubber composition having high adhesiveness to a metal, high modulus, high set resistance and high heat resistance, comprising raw material rubber, 2,4-dimercapto-6-substituted-1,3,5-triazine and a polymer having epoxy groups crosslinkable with the raw ... | 12/10/2002 |
| 6417286 | Titanium and zirconium compounds The present invention relates to titanium and zirconium compounds of the formulae (R1 --O.paren close-st.y X.paren open-st.O--R2 --W)z I wherein each R1 is independently selected from the group consisting of ... | 07/09/2002 |
| 6346577 | Heat-resistant rubber composition The heat-resistant rubber composition of the invention is a vulcanizable composition comprising 100 parts by weight of a specific ethylene--olefin-nonconjugated polyene copolymer rubber (A) composed of ethylene, an -olefin or 3 to 20 carbon ... | 02/12/2002 |
| 6313206 | Titanate compounds The present invention relates to titanate compounds of the formula ##STR1## wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon ato... | 11/06/2001 |
| 6251994 | Elastomeric compositions for damping A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising blending a saturated damping additive within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulca... | 06/26/2001 |
| 6248841 | Elastomer treatment process to decrease peroxide levels A novel process has been developed for the treatment of crosslinked ethylene-propylene diene monomer (EPDM) elastomer material to decrease its residual peroxide levels. EPDM is used to form the seats and neck gaskets of metering valves used in metered-dos... | 06/19/2001 |
| 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 black core has been removed. For example, an irregularly-shap... | 06/12/2001 |
| 6235819 | Process to scavenge amines in polymeric compounds by treatment with triazine derivatives and compositions therefrom A method for scavenging amines within polymeric compositions of matter comprising the step of adding to a polymeric composition of matter at least one triazine compound, wherein said triazine compound is defined according to the formula: ##STR1## whe... | 05/22/2001 |
| 6211271 | Process for producing a vulcanizable rubber composition including carbon black-based and silica-based reinforcing fillers A process for producing a vulcanizable rubber composition containing silica and carbon black, comprises the step of intimately mixing at a temperature of from 130° to 180° C. at least a first cross-linkable unsaturated chain polymer with a first carbon ... | 04/03/2001 |
| 6133378 | EPDM-based roofing shingle compositions High durometer, polymeric roofing shingles with varying colors and shades of color may be prepared from a composition of matter comprising 100 parts by weight of a ethylene-propylene-diene (EPDM) terpolymer; from 25 to about 400 parts by weight of at leas... | 10/17/2000 |
| 6090889 | Rubbery polymer with improved properties This invention discloses a rubbery polymer having improved properties which is comprised of repeat units which are derived from (a) butyl acrylate, or optionally a mixture of butyl acrylate and 2-ethylhexyl acrylate containing up to about 40 percent 2-eth... | 07/18/2000 |
| 6071582 | Rubber layer structure A rubber layer structure provided with a first rubber layer having a first liquid facing surface for contact with a liquid surface and a second rubber layer in contact with a second surface of the first rubber layer. The first rubber layer is formed of a ... | 06/06/2000 |
| 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 |
| 6066690 | Heat-vulcanizable rubber composition This application provides a heat vulcanizable rubber composition which prevents scorch in a molding process for the production of vulcanized rubber molded articles, and has good storage stability when the composition is formulated in the form of a one pac... | 05/23/2000 |
| 6048943 | Titanate compounds in rubber compositions The present invention relates to titanate compounds of the formula ##STR1## wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbo... | 04/11/2000 |
