Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7157515 | Rubber composition for magnetic encoder A rubber composition for magnetic encoder, which comprises ethylene-methyl acrylate copolymeric rubber, magnetic powder and an amine-based vulcanizing agent, can give molding products with distinguished heat resistance, water resistance and saline water resistance a... | 01/02/2007 |
| 7141631 | Non-conjugated cyclic diene, non-conjugated cyclic diene composition and method of producing polymer based on non-conjugated cyclic diene It is an object of the present invention to provide a non-conjugated cyclic diene and a non-conjugated cyclic diene composition which enable the production of a polymer based on non-conjugated cyclic diene which makes it possible to produce a (co)polymer at a high d... | 11/28/2006 |
| 7138485 | Method for removing metal ions from polymers or polymer solutions The invention relates to a simple, economical and reliable method for removing catalytic residues from polymer solutions. According to the inventive method, the copper content is reduced to a non-disturbing concentration level. ... | 11/21/2006 |
| 7094849 | Bulk polymerization process for producing polydienes A method of producing cis-1,4-polydienes, the method comprising the step of contacting conjugated diene monomer with a lanthanide-based catalyst system in the presence of less than 20% by weight of organic solvent based on the total weight of monomer, organic solven... | 08/22/2006 |
| 7008899 | Lanthanide-based catalyst composition for producing cis-1,4-polydienes A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a lanthanide compound, (b) an organoaluminum hydride, and (c) a tin halide compound. ... | 03/07/2006 |
| 6946516 | Rubber-modified styrene resin composition A rubber-modified flame resistant styrene resin composition, which has superior heat stability and weather resistance to prevent discoloration and deterioration due to heat or light and is processed under various molding condition, is provided. The rubber-modified f... | 09/20/2005 |
| 6870002 | Rubber composition A rubber composition, which comprises 100 parts by weight of a rubber mixture consisting of 70-95 wt. % of solid rubber and 30-5 wt. % of liquid rubber reactive on the solid rubber, and 450-1,000 parts by weight of magnetic powder. The rubber composition has an impr... | 03/22/2005 |
| 6822037 | Silica reinforced rubber compositions of improved processability and storage stability The disclosure relates to a process for improving the processability, storage stability and/or cure rate of an uncured silica reinforced rubber composition where silica comprises the major filler in the reinforced rubber composition, which comprises combining a mixt... | 11/23/2004 |
| 6737466 | Silica reinforced rubber compositions of improved processability and storage stability The disclosure relates to a process for improving the processability, storage stability and/or cure rate of an uncured silica reinforced rubber composition where silica comprises the major filler in the reinforced rubber composition, which comprises combining a mixt... | 05/18/2004 |
| 6716914 | Compatible linear and branched ethylenic polymers and foams therefrom An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable c... | 04/06/2004 |
| 6482884 | Silica reinforced rubber compositions of improved processability and storage stability The disclosure relates to a process for improving the processability, storage stability and/or cure rate of an uncured silica reinforced rubber composition where silica comprises the major filler in the reinforced rubber composition, which comprises combi... | 11/19/2002 |
| 6441107 | Molecular weight control of gas phase polymerized polybutadiene when using a rare earth catalyst A process for controlling the molecular weight (Mw) and molecular weight distribution (MWD) of polybutadiene polymerized in an otherwise gas phase process using a rare earth catalyst is provided.... | 08/27/2002 |
| 6372837 | Nanocomposite material The invention relates to a method for preparing a nanocomposite material based on a polymeric matrix and a layered double hydroxide, comprising the steps of: a) providing a layered double hydroxide which contains an amount of anions of at least 20%, based... | 04/16/2002 |
| 6365661 | Nanocomposite material The invention relates to a nanocomposite material based on a polymeric matrix and a layered double hydroxide, wherein the polymeric matrix is present in an amount of at least 50% by weight, based on the nanocomposite material, and wherein the layered doub... | 04/02/2002 |
| 6319611 | Cyclopentadiene derivatives for carbon-carbon composites A thermosetting resin is formed from cyclopentadiene and a propargyl halide The resin can be used with carbon fibers to form a carbon--carbon composite.... | 11/20/2001 |
| 6313216 | Synthesis of styrene-isoprene rubber This invention discloses a process for synthesizing random styrene-isoprene rubber comprising: (1) continuously charging isoprene, styrene, an initiator, and a solvent into a first polymerization zone, (2) allowing the isoprene and styrene to copolymerize... | 11/06/2001 |
| 6214946 | Inert particulate material passivation for single-site catalyst in EPDM production There is provided a process for the gas phase production of an ethylene-propylene or ethylene-propylene-diene rubber in the presence of a single site or single-site like catalyst (e.g., metallocene) catalyst system and an inert particulate material compri... | 04/10/2001 |
| 6201057 | Weatherable coating and stain system for thermoset or thermoplastic composite surfaces A stain/topcoat system for non-porous thermoset and/or thermoplastic articles comprises a pigmented stain, and a topcoat comprising one or more non-siloxane film-forming polymers, an emulsion of one or more curable organopolysiloxanes, a weatherability ag... | 03/13/2001 |
| 6136919 | Rubber composition and tire having tread thereof A method of preparing a pre-formed elastomer/filler composite of a diene-based elastomer and particulate filler dispersed therein by polymerizing monomers in the presence of said filler with a polymerization promoting catalyst in which at least a portion ... | 10/24/2000 |
| 6087016 | Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier Barrier coating mixtures contain in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content o... | 07/11/2000 |
| 6066705 | Vapor phase synthesis of cis-1, 4-Polyisoprene By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and contr... | 05/23/2000 |
| 6004677 | Gas phase production of polydienes with pre-activated nickel catalysts There is provided a process for producing polydienes, such as polybutadiene and polyisoprene, in a gas phase fluidized bed reactor using a pre-activated nickel catalyst which is highly active for cost effective production of these dienes in gas phase.... | 12/21/1999 |
| 6001478 | Resin particle produced by diene polymerization with rare earth and transition metal catalysts There is provided a process for preparing a polydiene comprising polymerizing a diene selected from the group consisting of butadiene, isoprene, or a mixture thereof under polymerization conditions in a gas phase reactor optionally in the presence of an i... | 12/14/1999 |
| 5883173 | Nanocomposite materials (LAW392) The present invention relates to a latex comprising water and a layered material intercalated with a polymer. The invention also relates to a nanocomposite material comprising a layered material intercalated with a polymer. The latex can be produced by fo... | 03/16/1999 |
| 5879805 | Gas phase polymerization of vinylpolybutadiene A process for the preparation of a 1,2-vinyl-polybutadiene with an adjustable amount of vinyl linkages in the microstructure of the polymer which comprises polymerizing 1,3-butadiene in a gas phase reactor under polymerization conditions using an inert ga... | 03/09/1999 |
| 5858746 | Gels for encapsulation of biological materials Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active mat... | 01/12/1999 |
| 5859156 | Vapor phase synthesis of rubbery polymers By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and contr... | 01/12/1999 |
| 5728782 | Gas phase anionic polymerization of dienes and vinyl-substituted aromatic compounds There is provided a process comprising polymerizing a compound selected from the group consisting of a conjugated diene, a vinyl-substituted aromatic compound, and mixtures thereof in a gas phase fluidized polymerization vessel under polymerization condit... | 03/17/1998 |
| 5652304 | Vapor phase synthesis of rubbery polymers By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and contr... | 07/29/1997 |
| 5489646 | Lower alkyl biphenyls as plasticizers A significantly improved plasticizer-polymer composition embraces a polymer containing a di-, tri- and/or tetra- ethyl-, propyl- and/or butylbiphenyl plasticizer which constitutes the major proportion by weight of any other plasticizing/softening additive... | 02/06/1996 |
| 5451646 | Technique for reducing the molecular weight and improving the processability of cis-1,4-polybutadiene Cis-1,4-polybutadiene can be synthesized by polymerizing 1,3-butadiene monomer with a three component nickel catalyst system containing (a) an organonickel compound, (b) an organoaluminum compound, and (c) a fluorine containing compound. However, the mole... | 09/19/1995 |
| 5438094 | Adhesive silicone compositions An adhesive silicone composition comprising (A) an alkenyl group-containing organopolysiloxane, (B) an organohydrogen-polysiloxane having at least three hydrogen atoms each directly bonded to a silicon atom in a molecule, (C) a compound having at least on... | 08/01/1995 |
| 5288807 | Vinyl monomer compositions with accelerated surface cure This invention relates to vinyl monomer compositions having accelerated surface cure characteristics. These compositions are prepared from a vinyl monomer or monomer mixtures such as blend of isobornyl methacrylate and hydroxypropyl methacrylate, a bulk p... | 02/22/1994 |
| 5260377 | Crosslinkable carbosilane polymer formulations Crosslinkable carbosilane polymer formulations are prepared from saturated or unsaturated carbosilane polymers containing reactive silicon hydride radicals in the polymer chain combined with polycyclic polyene crosslinkers having two or more double bonds ... | 11/09/1993 |
| 5204427 | Method of making ring-opened polynorbornene polymers using pot life extending agents A reaction solution comprising a mixture of tricyclopentadiene, a norbornene monomer with at least 3 rings in its backbone, a 5-alkenyl-2-norbornene pot life adjusting agent along with a molybdenum type catalyst system gives prolonged pot life without ext... | 04/20/1993 |
| 5086132 | Reduction of agglomeration A process for the polymerization of a liquid alpha-olefin or a solution of two or more alpha-olefins and, optionally, one or more diolefins wherein the sole process medium is one or more of the said olefins in liquid form comprising: (a) admixing the liquid al... | 02/04/1992 |
| 5017647 | Black-pigmented polymeric compositions of matter A pigmented polymeric composition of matter is provided which comprises units derived from ring-opening metathesis catalyst polymerization of a norbornene-type monomer or mixtures of norbornene-type monomers, and from about 0.05 to about 25 parts by weigh... | 05/21/1991 |
| 4889885 | Composite material containing a layered silicate A composite material comprising a resin other than polyamide resin and a layered silicate dispersed therein, said layered silicate having a layer thickness of 7 to 12 Å and an interlayer distance of 30 Å or above. Owing to the layered silicate uniformly... | 12/26/1989 |
| 4857574 | Dispersion of addition (co)polymers in an organic liquid Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a polymer containing an ethylenically unsaturated monomer. The (co)polymers are substantially ... | 08/15/1989 |
| 4824512 | Low viscosity, pregelable rubber-based adhesives Rubber based adhesives containing liquid stereospecific polybutadiene rubber, one or more hardeners or hardener systems, fillers and optionally primers, which contain one or more chemically irreversibly depolymerized solid rubbers of natural or synthetic ... | 04/25/1989 |
