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 |
| 7910661 | Thiol-selective water-soluble polymer derivatives The present invention provides water-soluble, polymer derivatives having a thiol-selective terminus suitable for selective coupling to thiol groups, such as those contained in the cysteine residues of proteins. ... | 03/22/2011 |
| 7473738 | Lactam polymer derivatives Lactam polymers has been modified with sodium borohydride (NaBH4) to yield lactam polymers bearing hydroxyl functional groups. These functional groups are useful for the covalent attachment of reactive groups, fluorescent probes, antimicrobial agents, bio... | 01/06/2009 |
| 7432330 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7432331 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7399792 | Solid reagents An object of the present invention is to provide a novel solid reagent capable of solving the problems of conventional solid reagents based on resin beads. The present invention relates to a solid reagent comprising an organic polymer base in which a polymer ... | 07/15/2008 |
| 7390853 | Solid reagents An object of the present invention is to provide a novel solid reagent capable of solving the problems of conventional solid reagents based on resin beads. The present invention relates to a solid reagent comprising an organic polymer base in which a polymer ... | 06/24/2008 |
| 7361698 | Water-based pigment inks, image recording method, and image recording system A water-based pigment ink contains a pigment, a hydrophilic dispersant, an aqueous medium, an alkali agent for solubilizing the hydrophilic dispersant in the aqueous medium, and a hydrophilic compound having at least one structural unit of “hydrophobic molecular c... | 04/22/2008 |
| 7351339 | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids A process for removing acids from reaction mixtures using an auxiliary base, in which the auxiliary base: combines with the acid to form a salt which is liquid at temperatures at which the product of value does not significantly decompose during the removal of the l... | 04/01/2008 |
| 7311971 | One part, heat cured pressure sensitive adhesives Novel one part, heat cured pressure-sensitive adhesives capable of bonding metallic and non-metallic materials at ambient temperatures and curing at elevated temperatures to form a bond with very high adhesive bond strengths at temperatures up to at least 160° C. T... | 12/25/2007 |
| 7294673 | Method of modifying polymeric material and use thereof A method of modifying a polymeric material whereby the polymeric material is modified to give a highly durable surface without decreasing its strength. Namely, a polymeric material is modified by the method comprising a combination of an impregnation step, an activa... | 11/13/2007 |
| 7265186 | Multi-arm block copolymers as drug delivery vehicles The invention provides methods for making copolymers and multi-arm block copolymers useful as drug delivery vehicles. The multi-arm block copolymers comprise a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attache... | 09/04/2007 |
| 7262253 | Process for the preparation of amphiphilic poly (N-vinyl-2-pyrrolidone) block copolymers The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention c... | 08/28/2007 |
| 7232520 | Ion exchange porous resins for solid phase extraction and chromatography Embodiments of the present invention are directed to porous resins for solid phase extractions. The resins feature at least one hydrophobic component, at least one hydrophilic component and at least one ion exchange functional group. The resins exhibit superior wett... | 06/19/2007 |
| 7217769 | Medical device with plasma cross-linked hydrophilic coating A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethyl... | 05/15/2007 |
| 7183351 | Hydrophilic adhesive compositions The present invention relates to novel hydrophilic adhesive compositions, characterised in that they comprise a thermoplastic elastomer of poly(styrene-olefin-styrene) block copolymer type, a tackifying product, a liquid plasticizer, water and un amphiphilic copolym... | 02/27/2007 |
| 7169404 | Biologically absorbable coatings for implantable devices and methods for fabricating the same Coatings for an implantable medical device and a method of fabricating thereof are disclosed, the coatings comprising a biologically degradable, biologically erodable, and/or biologically resorbable ABA or AB block copolymer. A biologically active agent can be conju... | 01/30/2007 |
| 7160957 | Process for reducing monomer content in N-vinyl compound polymers A method for residual monomer diminution by which a residual monomer is speedily removed from an N-vinyl compound polymer or the like without posing a problem such as an increase in ash content; and a process for producing an N-vinyl compound polymer solution or pow... | 01/09/2007 |
| 7160947 | Polymers and laundry detergent compositions containing them Graft copolymers providing soil release benefits in laundry detergent compositions contain backbone units derived from an ethylenically unsaturated monomer, hydrophilic uncharged side chains, and cationically chargeable or charged side chains containing a tertiary o... | 01/09/2007 |
| 7144947 | Amphiphilic copolymers useful especially as emulsifiers The invention concerns copolymers of the poly(styrene)-poly(ethylene-butylene)-poly(styrene) type wherein the central poly(ethylene-butylene) sequence has been modified by chemical grafting of hydrophilic groups to make them amphiphilic. The invention also concerns ... | 12/05/2006 |
| 7119145 | Surface graft modified resins and formation thereof Pre-formed polymer particles are chemically modified by free radical-initiated surface graft modification. The resulting resin is specifically adapted to provide enhanced chromatographic performance throughout chromatographic separations. ... | 10/10/2006 |
| 7093655 | Method for the recovery of hydrocarbons from hydrates A method for recovering hydrocarbon trapped in a hydrate formation, comprising the steps of (a) contacting the hydrate formation with an aqueous solution comprising from 10% to 75% by weight of a salt such as potassium formate or acetate salt to liberate hydrocarbon... | 08/22/2006 |
| 7094831 | Aqueous polymer dispersion An aqueous polymer dispersion prepared by free-radical polymerization of vinyl acetate in the presence of at least one ionic emulsifier, at least one free-radical initiator and at least one protective colloid, wherein the polymerization is carried out in the presenc... | 08/22/2006 |
| 7071269 | Acrylic PSAs with narrow molecular weight distribution A process for preparing acrylic pressure sensitive adhesives by means of radical polymerization of a monomer mixture to give a polyacrylate, wherein said polymerization is carried out with an initiator system comprising at least one triazolinyl compound of the gener... | 07/04/2006 |
| 7064168 | AB block copolymers containing poly (vinyl pyrrolidone) units, medical devices, and methods AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical d... | 06/20/2006 |
| 7041762 | Polyvalent imprinted polymer and process of preparation thereof The present invention relates to a polyvalent imprinted polymer useful in medicine and biotechnology and to a process for the preparation thereof. More particularly it relates to the said polymer of formula (1) herein below | 05/09/2006 |
| 7008466 | Method for inhibiting hydrate formation A method for inhibiting the formation of gas hydrates within a fluid comprising a gaseous hydrocarbon phase, a liquid hydrocarbon phase and an aqueous phase which method comprises mixing a polymeric emulsifier and optionally a non-ionic non-polymeric co-emulsifier w... | 03/07/2006 |
| 6916480 | Wiper containing a controlled-release anti-microbial agent A wiper having a controlled release anti-microbial agent therein for providing anti-microbial cleansing of surfaces is provided. The wiper is formed from an absorbent base web to which an anti-microbial formulation is adhered. The formulation includes an anti-microb... | 07/12/2005 |
| 6884835 | Process for making light weight rubber composition containing clay This invention relates to a process for making a vulcanized rubber article comprising the steps of (1) kneading at a temperature within the range of about 70° C. to about 190° C. in a bulk thermomechanical mixer (a) an amino group containing rubbery polymer, where... | 04/26/2005 |
| 6872787 | Post-treatment of a polymeric composition A post-treatment process for making a water-resistant polymeric composition which is inkjet printable, or in the form of a strongly-swellable gel, includes providing a stable, aqueous two-phase polymeric composition by the steps of forming a reaction mixture in a re... | 03/29/2005 |
| 6867262 | Grafted polymers as gas hydrate inhibitors Graft polymers are used as gas hydrate inhibitors. ... | 03/15/2005 |
| 6838528 | Multi-arm block copolymers as drug delivery vehicles The invention provides multi-arm block copolymers useful as drug delivery vehicles comprising a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an... | 01/04/2005 |
| 6765081 | Thermal responsive, water-soluble polymers A thermal responsive, water soluble polymer. The polymer comprises the co-polymerization product of: (a) 5˜95 wt % of N-isopropyl acrylamide (NIP); (b) 0.1˜80 wt % of 1-vinyl-2-pyrrolidinone (VPD); and optionally, (c) 0.1˜30 wt % of acrylic acid (AA). As the prop... | 07/20/2004 |
| 6765069 | Plasma cross-linked hydrophilic coating A method for making a hydrophilic and lubricious coating, the coating so made and a medical device including such coating, wherein the coating includes a hydrophilic polymeric unit layer cross-linked with a plasma deposited double bond monomer. The hydrophilic polym... | 07/20/2004 |
| 6759442 | Packing material for solid phase extraction and solid phase extraction method An object of the present invention is to provide a packing material for solid phase extraction, ensuring excellent recovery of not only a hydrophobic substance but also an ionic substance by having hydrophobicity and an ion exchange group at the same time, and a sol... | 07/06/2004 |
| 6756449 | AnB block copolymers containing poly (vinyl pyrrolidone) units, medical devices, and methods AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical d... | 06/29/2004 |
| 6747082 | Metal composition for making a conductive film and metal composition for making an electron emission element The present invention provides a metal composition for making a conductive film and a metal composition for making an electron emission element. The metal composition includes a vinylpyrrolidone-acrylic acid copolymer represented by formula (I). ... | 06/08/2004 |
| 6686425 | High Tg acrylic polymer and epoxy-containing blend therefor as pressure sensitive adhesive A high Tg acrylic polymer is provided as well as an epoxy-blend thereof for use as a pressure sensitive adhesive. The high Tg acrylic polymer comprises a copolymer of an alkyl (meth)acrylate monomer whose homopolymer has a Tg>20° C., optionally a C1... | 02/03/2004 |
| 6683147 | Method for the production of glass or plastic laminates by use of a curable blend of an epoxy resin and a high Tg polymer A method for the production of glass or plastic laminates is provided comprising applying between opposing faces of glass or plastic substrates a pressure sensitive adhesive comprised of a curable blend of an epoxy resin and a polymer comprised of the pol... | 01/27/2004 |
| 6617373 | Ophthalmic lenses and compositions and methods for producing same Ophthalmic lenses, such as corneal contact lenses, include a lens body made of a composition including a lens body made of a composition including a first crosslinked polymer material which is water swellable, and a second polymeric material, other than t... | 09/09/2003 |
| 6599987 | Water soluble, curable copolymers, methods of preparation and uses thereof The present invention provides cured, compositions of matter that are non-swellable in water after curing. In general, the compositions comprise a water soluble copolymers comprising vinylpyrrolidone and glycidyl acrylate and a water soluble secondary aro... | 07/29/2003 |
