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| Number | Title | Issue Date |
| 7435464 | Articles comprising aqueous dispersions of polyureaurethanes Polyurethane particles dispersed in water can be used to make articles of commerce with reduced chance of chemical and biological allergic reaction to skin, and which exhibit improved puncture and tear resistance when compared to gloves made with other materials. | 10/14/2008 |
| 7144535 | Procedure for the preparation of a highly durable composite textile material workable at high temperature, and the composite textile material thus obtained A high durability composite textile material, like a synthetic suede, is prepared according to a procedure that comprises the impregnation of micro-fibers non-woven fabric substrate with a polyurethane-polyurea solution. This polymer solution, is made by a pre-polym... | 12/05/2006 |
| 6863859 | Reverse thermal gels and the use thereof for rapid prototyping The present invention relates to novel polymeric compositions that exhibit Reverse Thermal Gelation (RTG) properties for use as Support Materials (SM) in the manufacture of three-dimensional objects. These polymers are Temperature Sensitive Polymers that respond wit... | 03/08/2005 |
| 6793855 | Polyisocyanurate compositions and composites The invention relates to polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an i... | 09/21/2004 |
| 6593451 | Method of processing polyacrylonitrile The present invention involves a method of processing polyacrylonitrile into a predetermined form. The first step in this method includes preparing a solution of a room temperature solvent that will dissolve polyacrylonitrile at room temperature and, a ro... | 07/15/2003 |
| 6589663 | Aromatic polyamide film The aromatic polyamide film of the present invention has microdomain structures having sizes of not less than 5 nm and not more than 600 nm. The film has an easily adhesive property and is suitable for use in printed circuit boards. In addition, it is pre... | 07/08/2003 |
| 6489418 | Preparation and application of artificial anti-idiotypic imprints This patent application describes the use of molecular imprinting as a means for preparation of anti-idiotypic imprint matrices. With this technique, imprints of artificial or natural molecules including their recognition sites, such as of molecularly imp... | 12/03/2002 |
| 6455618 | Thermoplastic elastomer molding compositions with improved processability Described is a thermoplastic molding composition comprising: a) 0.05 to 1.5 wt. %, with respect to the entire molding composition, of a fatty acid amide ester wax; b) 0.5 to 10 wt. %, with respect to the entire molding composition, of a silica selected fr... | 09/24/2002 |
| 6444776 | Organic polymers The present invention relates to novel crosslinkable amphiphilic block copolymers of formula ##STR1## wherein the variables are as defined in the claims, a process for their preparation and their use for the manufacture of mouldings. The block copoly... | 09/03/2002 |
| 6303743 | Polyimide for optical communications, method of preparing the same, and method of forming multiple polyimide film using the polyimide A polyimide for optical communications, which is expressed by the formula (1), a method of preparing the same, and a method of forming multiple polyimide films using the polyimide, wherein the formula (1) is given by ##STR1## X1, X2,... | 10/16/2001 |
| 6090328 | Method of shaping from a mixture of prevulcanized natural rubber latex and water-soluble polymer and the resulting shaped article The tear strength of a vulcanized natural rubber latex shaped article is improved by shaping a mixture of a prevulcanized natural rubber latex and a water-soluble polymer. The prevulcanization of a natural rubber latex may be done by exposure to a radiati... | 07/18/2000 |
| 6054524 | Plastisol having a high rubber content This invention is based upon the unexpected discovery that aliphatic solvents and secondary plasticizers act to reduce the viscosity of plastisol compositions that contain a crosslinked nitrile rubber. It has been unexpectedly found that plastisol composi... | 04/25/2000 |
| 6039913 | Process for the manufacture of an ophthalmic molding The present invention relates to a process for the manufacture of a molding, which comprises the following steps: a) providing at least one prepolymer comprising one or more crosslinkable groups, wherein the prepolymer is an amphiphilic segmented copolymer ... | 03/21/2000 |
| 6034198 | Modified soy protein and thermoplastic articles therefrom The invention relates to a process of chemically modifying soy protein to produce a thermoplastic material. An aqueous alkaline solution of soy protein is mixed with an organic solution of an alkyl or alkenyl succinic anhydride to acylate the protein's am... | 03/07/2000 |
| 5858296 | Preparation of biologically active molecules by molecular imprinting A method for preparing mimics of a wide variety of drugs and other biologlly active molecules using molecular imprinting techniques, and the mimics produced thereby, is disclosed. Specifically, the mimic is designed by: (i) polymerization of functional m... | 01/12/1999 |
| 5840236 | Slush molding process A process for producing a hollow rubber article by (1) injecting a slush molding plastisol composition of (a) polyvinyl chloride, (b) from about 40 to about 65 parts of a plasticizer per 100 parts of polyvinyl chloride, (c) from about 1 to about 3 parts o... | 11/24/1998 |
| 5681512 | Process for producing homogeneous phase melt of polyacrylonitrile A process for producing a homogeneous phase melt of polyacrylonitrile suitable for extrusion molding and melt spinning, by the steps of preparing polymer/water crumb containing 30-60 wt % of polyacrylonitrile and dewatering the crumb in a molten state wit... | 10/28/1997 |
| 5630978 | Preparation of biologically active molecules by molecular imprinting A method for preparing mimics of a wide variety of drugs and other biologically active molecules using molecular imprinting techniques, and the mimics produced thereby, is disclosed. Specifically, the mimic is designed by: (i) polymerization of functional... | 05/20/1997 |
| 5587117 | Process for insulating pipes using polyurethane rigid foams by the rotational casting process The invention relates to a process for insulating pipes by applying a rigid polyurethane foam as an insulating layer and optionally an external top coating by the rotational casting process. The rigid polyurethane foam is obtained by a) an aromatic polyis... | 12/24/1996 |
| 5562872 | A method for manufacturing an antibacterial chopping board A chopping board of the present invention is formed in a manner that synthetic rubber (NBR) and hard chloroethene as a basis are kneaded into wherein an anti-bacterial agent is mixed. Definitely, a stiffening agent of synthetic rubber, low-pressure polyet... | 10/08/1996 |
| 5536465 | Long-gelling internal mold release compositions for structural rim processes The present invention relates to a process for the preparation of a SRIM molded product wherein the mold cavity has minimum dimensions of 1000 mm×100 mm×3.5 mm. The reaction mixture contains an isocyanate component and an isocyanate reactive component a... | 07/16/1996 |
| 5447669 | Melt-processed polymer blends Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.... | 09/05/1995 |
| 5436275 | Porous acrylonitrile polymer fiber This invention offers the porous fiber in which the porous form of the fiber is with an excellent durability to heat and accordingly can afford the fiber products with a shape-retaining ability. Porous acrylonitrile fiber comprising the polymers containing not... | 07/25/1995 |
| 5393872 | Sheetlike wholly aromatic polyamide shaped article and a method for producing the same This invention relates to a sheetlike wholly aromatic polyamide shaped article useful as electrical insulating materials excellent in corona resistance (corona durability) and in surface smoothness. The corona durability of said sheetlike shaped article i... | 02/28/1995 |
| 5384390 | Flame-retardant, high temperature resistant polyimide fibers and process for producing the same There are disclosed flame-retardant, high temperature resistant polyimide fibers of the general formula ##STR1## wherein n is an integer larger than 1, A is a tetravalent aromatic group and R is at least one divalent aromatic group. These polyimide f... | 01/24/1995 |
| 5374474 | Composite board and method of manufacture Composite boards made primarily from recycled waste paper and methods for production of such boards are described.... | 12/20/1994 |
| 5264542 | Process for preparing stabilized polybenzimidazole products A process for preparing shaped polybenzimidazole sintered products having increased resistance to dimensional modification by absorption of water and the products prepared therefrom.... | 11/23/1993 |
| 5238631 | Process of making non-metallic polymeric twist ties Process for making wireless twist ties including extruding and quenching molten polymeric materials to form ribbon or perforated sheets. Wireless twist ties include polymeric material, such as polyethylene terephthalate, polyvinylchloride, styrene-acrylon... | 08/24/1993 |
| 5229439 | Manufacturing process for component having the appearance of natural stone by moulding a composition containing a heat-setting resin and component obtained by means of the process According to the invention a moulding is produced by compression and extrusion at a temperature between 120° and 160° of a mixture of heat-setting resin and at the most 30% related to the total weight of mixture of a filler with a grain size between 50 ... | 07/20/1993 |
| 5120814 | Method of producing new flame-retardant thermostable homopolyimides, these homopolyimides, a moulded article obtained therefrom and a fibre prouced from these homopolyimides To produce flame-retardant thermostable new homopolyimides having structural units of the general formula ##STR1## by reacting 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride with an overall equimolar amount of 2,4- and/or 2,6-toluene diisocy... | 06/09/1992 |
| 5097011 | Process for preparing acrylonitrile polymer film An acrylonitrile polymer film is disclosed which film comprising a polymer containing higher than 80% by weight of acrylonitrile units, having higher than 300,000 of weight average molecular weight, and having molar fraction Ne for the segment of polymeri... | 03/17/1992 |
| 5026512 | Method for manufacturing molded products of thermoplastic and inorganic materials A method for manufacturing molded products of thermoplastic material by injection molding or extrusion molding a material containing a thermoplastic material as a primary component and a second polymer or a blend of the thermoplastic material and second p... | 06/25/1991 |
| 4987184 | Mixtures of polycarbonates with siloxane-containing graft polymers The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, lower thermoplasts and/or standard additives and to a process for the production of the polyca... | 01/22/1991 |
| 4957660 | Electrically conductive plastic moldings and process for producing the same A conductive plastic molding obtained by melt molding an ethylene copolymer comprising from 40 to 90% by weight of an ethylene unit, from 10 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula ##STR1## ... | 09/18/1990 |
| 4948837 | Mixtures of polycarbonates with siloxane-containing graft polymers The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, lower thermoplasts and/or standard additives and to a process for the production of the polyca... | 08/14/1990 |
| 4916016 | Metal or plastic-clad polyvinyl resin laminates A metal foil or plastic film clad reinforced resin susbstrate which is made by the process of injection molding a polymerizing resin solution under pressure in a closed heated mold cavity having at least one surface covered by a metal foil or plastic film... | 04/10/1990 |
| 4868261 | Optical resin material An optical resin material comprising a polymer containing as an essential component at least one norbornyl acrylate or methacrylate or a derivative thereof is excellent in properties, particularly in moisture resistance and can be used for molding optical... | 09/19/1989 |
| 4865743 | Method for production of solution-diffusion membranes and their application for pervaporation For producing solution/diffusion membranes, homogeneous dense films prepared by melt extrusion or casting from synthetic polymers, having a melting temperature above 140° C., a glass transition temperature above 0° C. and long time stability against boi... | 09/12/1989 |
| 4863652 | Method for manufacturing molded products of polyethylene terephthalate A method for manufacturing molded products of polyethylene terephthalate by injection molding or extrusion molding a material containing polyethylene terephthalate as the principal component characterized by using virgin and/or waste polyethylene terephth... | 09/05/1989 |
| 4806297 | Solvent-resistant, compatible blends of polyphenylene ethers and linear polyesters Impact- and solvent-resistant resin blends are prepared from a polyphenylene ether, or blend thereof with a polystyrene, a linear polyester such as a poly(alkylene dicarboxylate), at least one elastomeric polyphenylene ether-compatible impact modifier and... | 02/21/1989 |
