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| Number | Title | Issue Date |
| 8013073 | Method for preparing polyolefins containing vinylidine end groups using nonaromatic heterocyclic compounds Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with a suitable nonaromatic heterocyclic ring quench... | 09/06/2011 |
| 7842758 | Conjugated materials featuring proquinoidal units The invention concerns compounds, oligomers, and polymers that contain: (I), (II), (III), or (IV) groups; where “-” indicates points of attachment. | 11/30/2010 |
| 7750088 | Cure system for chlorinated elastomer compositions and a method of curing chlorinated elastomer compositions 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 inorganic base, and a quaternary ammonium salt. The quaternary ammoniu... | 07/06/2010 |
| 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 inorganic base, and a quaternary ammonium salt. The quaternary ammoniu... | 11/03/2009 |
| 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 formula Z-SH wherein Z represents a nitrogen-containing aromatic ring as... | 10/21/2008 |
| 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 temperature in the presence of a free radical inhibitor. The polyalke... | 03/04/2008 |
| 7291741 | Process of production of n-alkyl-2-benzthiazolysulfeneimides, device for their production and method of their purification The solution concerns a process of production of N-alkyl-2-benzthiazolylsulfeneimides by means of a reaction of 2-benzthiazolylsulfenyl chloride with an excess of a corresponding alkylamine in an anhydrous reaction medium. Removement of water and moisture from the r... | 11/06/2007 |
| 7285600 | Reagents for heat activated polymer crosslinking The present invention is directed to nitrile-oxide precursor compounds, and their preparation and use as an irreversible cross-linking agent in polymers having appropriate functionality, i.e., alkenes, alkynes nitriles, and isocyanates. The present invention is also... | 10/23/2007 |
| 7279518 | Filled elastomeric butyl compounds The invention provides a process for preparing a filled halobutyl elastomer, which comprises mixing a halobutyl elastomer, particles of filler and an additive containing both amino and alcohol functional groups, and curing the filled elastomer with sulfur or other c... | 10/09/2007 |
| 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 |
| 7235612 | Polymer alloy and method for manufacturing polymer alloy This invention is a method for manufacturing a polymer alloy, by making at least two resins used as components miscible, and inducing the spinodal decomposition for causing phase separation, for forming a co-continuous structure with a wavelength of concentration fl... | 06/26/2007 |
| 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 |
| 7199175 | Tread for a tire having a rigidity gradient A tire tread comprising a rubber composition based on (phr: parts by weight per hundred parts of elastomer): (i) a diene elastomer; (ii) more than 50 phr of an inorganic filler as reinforcing filler; | 04/03/2007 |
| 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 |
| 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 specified compound selected from the group consisting of components (d)-(... | 01/04/2005 |
| 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 or higher than that of the related art in resistance to rubber fractur... | 11/30/2004 |
| 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 formula III: where R | 06/22/2004 |
| 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 |
| 6534584 | SILICA REINFORCED RUBBER COMPOSITION WHICH CONTAINS CARBON BLACK SUPPORTED THIOGLYCEROL COUPLING AGENT AND ARTICLE OF MANUFACTURE, INCLUDING A TIRE, HAVING AT LEAST ONE COMPONENT COMPRISED OF SUCH RUBBER COMPOSITION This invention relates to a conjugated diene-based rubber composition reinforced with silica-based reinforcement together with a composite of carbon black supported non-silane coupling agent as 1-thioglycerol(3-mercapto-1,2-propanediol) and exclusive of ... | 03/18/2003 |
| 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 groups, aza crown ether groups, oxy crown ethers groups, gua... | 08/27/2002 |
| 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 |
| 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 R1 represents a hydrogen atom, an alkyl group, or an aryl group, and R2 repre... | 12/18/2001 |
| 6265478 | Polymeric resinous material derived from limonene dicyclopentadiene indene and alpha-methyl styrene The present application relates to polymeric resinous material comprising (1) from 5 to 70 weight percent units derived from limonene; (2) from 5 to 70 weight percent units derived from dicyclopentadiene; (3) from 5 to 45 weight percent units derived from indene; and (4... | 07/24/2001 |
| 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 of a synthetic rubber and/or natural rubber, 25 parts by w... | 03/06/2001 |
| 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 rubber component; optionally, 5 to 40 parts by weight of alumin... | 02/13/2001 |
| 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.... | 10/31/2000 |
| 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 has closed cells, has an expansion ratio of about 2% to ab... | 06/13/2000 |
| 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 and/or S atoms but not a C--OH group, that is b... | 05/30/2000 |
| 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 rubbers, 0.1 to 10 parts by weight of at least one type of metal... | 08/17/1999 |
| 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.... | 05/04/1999 |
| 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 |
| 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 butadiene rubber containing syndiotactic crystals, 60 to ... | 01/12/1999 |
| 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 |
| 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 200° C., said rubber composition, containing a sulfur vulc... | 04/28/1998 |
| 5733983 | Heat-resistant rubber composition A heat-resistant rubber composition of the invention is a vulcanizable composition comprising a specific ethylene--olefin-nonconjugated polyene copolymer rubber (A) and an organic peroxide (B). This heat-resistant composition has high crosslinking ... | 03/31/1998 |
| 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) having a thiol or thioester group and hydrolysis thereof, sai... | 01/20/1998 |
| 5698500 | 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 C3 to C12 alpha monoolefin, and a polyene being a member selected from the group consisting of non-c... | 12/16/1997 |
| 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 support. Also disclosed are compounds for use with said p... | 12/02/1997 |
| 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) ##STR1## wherein R1, R2, R4 | 11/18/1997 |
| 5686537 | Controlling premature curing of vulcanizable halogen-containing polymers Controlling premature curing of vulcanizable halogen-containing polymer compounds.... | 11/11/1997 |
