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| Number | Title | Issue Date |
| 7345117 | Sulphated hyaluronic acid and sulphated derivatives thereof covalently bound to polyurethanes, and the process for their preparation The present invention relates to the synthesis of a haemocompatible polymer, consisting of a polyurethane bound covalently to sulphated hyaluronic acid. These sulfated derivatives have anticoagulative, non-thrombogenic, antiviral and anti-inflammatory properties. Th... | 03/18/2008 |
| 7172866 | Methods and gel compositions for encapsulating living cells and organic molecules A method for encapsulating biologics within a hydrogel by using an aqueous solution of an isocyanate-functional hydrogel prepolymer which is mixed with an amount of biologics and an aqueous solution containing a dithiol crosslinking agent under physiological pH cond... | 02/06/2007 |
| 7129022 | Photo-polymerization type photo-sensitive electrode paste composition for plasma display panel and fabricating method thereof This invention relates to a photo-polymerization type photosensitive electrode paste composition for a plasma display panel that is capable of preventing a bubble from occurring on an electrode surface during an electrode paste printing process and a damage of an el... | 10/31/2006 |
| 7030187 | Cellulose copolymers that modify fibers and surfaces and methods of making same Cellulosic polymers, copolymers and grafts, are disclosed that adhere to fibers and surfaces during an aqueous treatment process. The cellulosic polymers having grafts and/or co-blocks are prepared using living-type free radical polymerization techniques, which prov... | 04/18/2006 |
| 6913715 | Lens molds with protective coatings for production of contact lenses and other ophthalmic products This invention relates to the preparation of molds for the production of contact lenses and other ophthalmic articles. By using an inorganic material to coat the optical surfaces and sidewalls of mold parts made from clear-resin materials, manufacturers can produce ... | 07/05/2005 |
| 6863971 | Strong durable low cost composite materials made from treated cellulose and plastic The present invention concerns treated fibrous porous material having a defined nanostructure comprising reactive sites thereon, wherein said fibrous porous material is treated with a low viscosity organic solution comprising organic solvent, isocyanate component un... | 03/08/2005 |
| 6846849 | Saccharide-based resin for the preparation of foam An embodiment of the present invention includes a foam prepared from a resin comprising: one or more saccharides; one or more isocyanates; one or more resin polyols; and water. The foam may be for example polyurethane foam or polycyanurate foam, either flexible or r... | 01/25/2005 |
| 6835758 | Water compatible energy curable compositions containing malemide derivatives A method for curing an active single phase water compatible actinic radiation curable composition, comprising: irradiating a water compatible non emulsion, non dispersing compound, water, and a maleimide derivative. ... | 12/28/2004 |
| 6828402 | Resin composite, method for producing the same and articles consisting of the same A resin composite characterized in that it includes: a polymer compound which is an alternating copolymer of a saccharic compound and an aliphatic compound and has a three-dimensional network; and a plasticizer contained in the gap in the three-dimensional network o... | 12/07/2004 |
| 6825272 | Golf ball A golf ball which is excellent in durability, sufficient to be used in a golf practice range, wherein the golf ball includes a core, a cover covering the core, and a mark printed on the surface of the cover, wherein: the cover is formed from a mixture of an ionomer ... | 11/30/2004 |
| 6822042 | Saccharide-based resin for the preparation of composite products A novel resin for binding composite lignocellulosic, cellulosic and non-cellulosic products is disclosed. The resin is comprised of one or more isocyanates, one or more saccharides, one or more polyols, and water. Preferaby, the saccharide is a polysaccharide compri... | 11/23/2004 |
| 6706778 | Process for the production of molded particles for microbial cell-immobilization This invention provides a process for the production of molded particles for microbial cell-immobilization which is characterized in that: an aqueous liquid composition which comprises: (a) an ethylenically unsaturated group-containing urethane resin w... | 03/16/2004 |
| 6420034 | Binder composition and process for manufacturing board by using the binder composition The present invention provides, in the preparation of a hot press molded board from a lignocellulose or an inorganic material as a main raw material, an isocyanate-based binder composition with which a board having eternally good releasability from a hot ... | 07/16/2002 |
| 6310172 | Water-dispersible polyisocyanate preparations for producing repulpable paper This invention relates to water-dispersible polyisocyanates obtained by reacting a) at least one bishydroxy-functional compound of the formula (I) HO--R1,--[O--CR2 R3 --O--R1 ]n --OH (I) wherein R1... | 10/30/2001 |
| 6174683 | Method of making biochips and the biochips resulting therefrom Methods for preparing a biochip are provided herein wherein the biomolecular probe to be used with the biochip is alternatively bound to a hydrogel prepolymer prior to or simultaneously with polymerization of the prepolymer. In particularly preferred embo... | 01/16/2001 |
| 6160032 | Biocompatible coating composition A coating composition is provided comprising hyaluronic acid or a salt thereof and a blocked polyisocyanate in a solvent comprising water. A method is provided for preparing the coating on a substrate comprising forming a coating mixture of hyaluronic aci... | 12/12/2000 |
| 6080831 | Water-dispersible polyisocyanates Cellulose-containing, optionally wood-containing materials which have been obtained using water-dispersible polyisocyanates which in turn have been prepared by reaction of the following starting components: a) modified polyisocyanates of the formula (I) #... | 06/27/2000 |
| 6054545 | Modified cellulose compound and photopolymerizable resin composition containing the same A modified cellulose compound and a photopolymerizable resin composition containing the same are disclosed, the modified cellulose compound being obtained by reacting a hydroxyl group of cellulose or a cellulose derivative with an isocyanate group of a sp... | 04/25/2000 |
| 6025452 | Lignin based polyols A lignin-polyol mixture is reacted with an isocyanate to produce a urethane material. The rate of the reaction is controlled by the sodium concentration in the lignin-polyol mixture. The lignin includes sodium and it is desirable to have the sodium at con... | 02/15/2000 |
| 6011092 | Thermoplasticized starch component and process for the preparation thereof The invention relates to a process for thermoplasticizing starch, a melt-processible polymer composition, which contains a starch-based component and a thermoplastisized polymer component, and a method for preparating such a composition. According to the ... | 01/04/2000 |
| 5880243 | Fire retardant composite products of cellulose impregnated with isocyanate compositions New and useful products are based on sheeted cellulose impregnated with a polyfunctional isocyanate and a fire retardant material. The fire retardants are chosen from organophosphorous esters compatible with the isocyanate in the proportions used. Preferr... | 03/09/1999 |
| 5674568 | Treatment of cellulosic fiber products The present invention is directed to a process for the production of a modified cellulosic product by: 1) coating or impregnating a composition of: a) a polymethylene poly(phenyl isocyanate), b) water, and c) an organic compound having an hydroxy functionality of f... | 10/07/1997 |
| 5612389 | Functionalized photoinitiators, macromers thereof, and the use thereof Compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolyme... | 03/18/1997 |
| 5583193 | Polysaccharide graft-polymers and the use in papermaking thereof A process for preparing a modified polysaccharide graft copolymer complex which comprises the steps of: i. subjecting polysaccharide to graft copolymerization with a vinyl monomer; ii. treating the polysaccharide graft copolymer with: a. polyethylene glycol to... | 12/10/1996 |
| 5580922 | Cellulose products treated with isocyanate compositions The invention is directed to a composition of matter useful as a paper impregnant, to the method of its use, and to the products produced by the method. Poly (diphenylmethane diisocyanate) or PMDI has been used in the past as a paper impregnant with or wi... | 12/03/1996 |
| 5433876 | Ion-conductive polymer and electrolyte additives Compounds are provided for use in an electrolyte comprising repeating unit selected from the group consisting of cyclic and heterocyclic species having y carbon atoms and z heteroatoms, X, and where y is 4, 5 or 6 and z is 0, 1 or 2. The heteroatom is sel... | 07/18/1995 |
| 5345738 | Multi-functional exterior structural foam sheathing panel An insulating sheathing panel has an insulating core, such as foam, sandwiched between PMDI impregnated cover sheets. The resulting panels offer structural reinforcement as well as insulating qualities to a building framework.... | 09/13/1994 |
| 5324777 | Process for the production of polymers containing ammonium groups The invention relates to a process for the production of polymers containing ammonium groups in which OH-functional polymers are first reacted with isocyanates corresponding to general formula I OCN--R--CH2 --X ... | 06/28/1994 |
| 5317071 | Aldehyde treatment system A method of converting a toxic composition containing an aldehyde to a composition which is substantially non-toxic. The aldehyde is reacted with a compound having protic oxygen or nitrogen atoms and a polyimine or polyimine derivative to absorb or swell ... | 05/31/1994 |
| 5280097 | Laminated composites of polyurea-cellulose and methods for their manufacture A laminated product has an organic polymer layer on at least one surface of a substrate of cellulosic material impregnated with polyisocyanate. The substrate is preferably made from substantially delignified cellulosic material and an isocyanate resin. Th... | 01/18/1994 |
| 5264515 | Moisture curable compositions and method of curing moisture curable compositions A moisture curable composition comprised of a moisture curable base and a curing agent which does not contain molecular water but which produces water upon activation so as to cure the curable base. The composition exhibits improved stability and shelf li... | 11/23/1993 |
| 5242490 | Surface reactive veneer finishing composition and method Veneer surface reactive polyisocyanates can be used in combination with polyhydroxy functional polymers, preferably nitrocellulose, and isocyanate reaction catalyzing organo tin compounds in low solids film-forming formulations as a substitute for standar... | 09/07/1993 |
| 5220760 | Multi-functional exterior structural foam sheathing panel An insulating sheathing panel has an insulating core, such as foam, sandwiched between PMDI impregnated cover sheets. The resulting panels offer structural reinforcement as well as insulating qualities to a building framework.... | 06/22/1993 |
| 5182379 | Acid-curable cellulose esters containing melamine pendent groups Modified cellulose esters are described that are prepared by grafting melamine moieties onto the backbone of cellulose esters. The resulting materials are useful in coating applications for wood, leather, and metal substrates and yield highly solvent-resi... | 01/26/1993 |
| 5157093 | Hydroxyethyl cellulose derivatives containing pendant (meth)acryloyl units bound through urethane groups and hydrogel contact lenses made therefrom The instant invention relates to methacrylate functionalized hydroxyethyl cellulose which is crosslinked with conventional vinylic monomers to form soft hydrogel contact lenses possessing high oxygen permeability, wettability, and mechanical strength.... | 10/20/1992 |
| 5144013 | Body fluid purifying material and method for purifying body fluid by use thereof There are disclosed a body fluid purifying material which comprises a water-insoluble compound obtained by allowing one or more kinds of a polymeric compound having hydroxyl groups to react with a compound having at least one isocyanate group, and a metho... | 09/01/1992 |
| 5140086 | Isocyanate modified cellulose products and method for their manufacture A method is disclosed for producing a polyureacellulose composite material from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanate, preferably PMDI, and a miscible organic solvent, prefer... | 08/18/1992 |
| 5138006 | Radiation polymerizable starch ester-urethanes Modified starch ester-urethanes prepared by reacting a starch ester containing residual hydroxyl groups with an ethylenically unsaturated isocyanate. The grafted starch ester is a urethane-containing product having pendent groups such as alphamethylstyren... | 08/11/1992 |
| 5037930 | Heterocyclic quaternized nitrogen-containing cellulosic graft polymers In this invention, at least two monomers are grafted onto hydroxy-containing cellulose polymer. The invention thus provides a polymer of a cellulose containing a hydroxy group on which is grafted, by replacement of the hydrogen atom of the hydroxy group, ... | 08/06/1991 |
| 5010155 | Vinyl-urethane substituted hydroxyethyl cellulose Vinyl substituted hydroxyethyl cellulose is obtained by reaction of hydroxyethyl cellulose, either in solution or in dispersion, with a vinyl-unsaturated isocyanate. The vinyl-urethane substituted hydroxyethyl cellulose of this invention can be used to fo... | 04/23/1991 |
