Bark Or Cork Patents (Class 524/16)
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Patent number: 6191196Abstract: A polymer composition uncludes a first component being a hydroxy-functional polymer, a second component being a natural polymer and a third component being a thermoplastic polyester. The first component, second component and third component are compounded to form a polymer composition.Type: GrantFiled: April 12, 1999Date of Patent: February 20, 2001Assignees: The United States of America as represented by the Secretary of Agriculture, Biotechnology Research and Development CorporationInventors: Julious L. Willett, William M. Doane
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Patent number: 6150436Abstract: This invention relates to materials containing polyreaction products, which contain reaction products of dicarboxylic acids or polycarboxylic acids or derivatives thereof with epoxidation products of carboxylic acid esters and at least one filler, methods for the production thereof, and the use thereof for the production of planar structures based on renewable raw materials.Type: GrantFiled: June 24, 1999Date of Patent: November 21, 2000Assignee: DLW AktiengesellschaftInventors: Bernd Kastl, Milko Ess, Hanns-Jorg Mauk
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Patent number: 6013702Abstract: The invention relates to a process for manufacturing a composition which can be used for producing stoppers.According to the invention, it comprises the following steps:a) sheets of cork are ground into small-sized granules,b) said cork granules are decomposed into granules having a high lignin content and into granules having a high suberin content, andc) the lignin-rich granules are separated from the suberin-rich granules in order to keep only the suberin-rich granules in said composition.The invention also relates to a composition comprising suberin-rich cork granules as well as to a stopper comprising such a composition.Type: GrantFiled: June 29, 1998Date of Patent: January 11, 2000Assignee: Pernod RicardInventors: Patrice Robichon, Philippe Noble
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Patent number: 5929143Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.Type: GrantFiled: October 16, 1997Date of Patent: July 27, 1999Assignee: General Electric CompanyInventors: Brian John Ward, Edward Matthew Jeram, Richard Albert Striker
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Patent number: 5922834Abstract: A method of treating paint sludge containing uncured polymer resin, water and/or solvent is provided in which a paint sludge putty is formed which may be used as a replacement for polymeric components used to form compounded polymeric compositions. The treated paint sludge putty or powder comprises from about 5 to 90% by weight of the total compounded polymeric composition and may be used in a variety of compositions including pressure sensitive sealants, caulking sealants, automotive sealants, polyvinyl chloride plastics, rubbers and asphalt cement coatings, and waterbased sealers and coatings.Type: GrantFiled: July 14, 1997Date of Patent: July 13, 1999Assignee: Aster, Inc.Inventors: Michael Joseph Gerace, Sevilla C. Gamboa, Yasminka S. Landaburu
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Patent number: 5863969Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.Type: GrantFiled: October 20, 1997Date of Patent: January 26, 1999Assignee: General Electric CompanyInventors: Brian J. Ward, Edward M. Jeram, Richard A. Striker
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Patent number: 5763509Abstract: To form a binder from naturally occurring products or a fuel brick or pellet using the binder without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves or from grain stillage. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2,000 linked with peptide linkages of at least 50 in number. The binder is mixed with waste such as municipal waste without further processing and processed in a pelleting machine.Type: GrantFiled: April 8, 1996Date of Patent: June 9, 1998Assignee: The Board of Regents of the University of NebraskaInventors: Jerry D. Eastin, David Jones, Darin Dux, Harold Earl Egger
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Patent number: 5741832Abstract: A mechanically-bonded, water-absorbent fiber mulch including natural and crimped synthetic fibers that are intimately mixed to form a mechanically-bonded fiber mulch. A water-absorbent polymer-based material is dispersed throughout the fiber mulch to increase its water absorption capacity.Type: GrantFiled: November 5, 1996Date of Patent: April 21, 1998Inventor: Kevin Scott Spittle
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Patent number: 5665798Abstract: Wood products of superior strength are produced from wood particulates that have been extracted with a solvent to remove volatile organic compounds and a significant proportion of pitch from the wood particulates. The products are especially resistant to weakening caused by water immersion. As a consequence of the enhanced strength and stiffness of the composites, wood products may be made tier, and of lighter weight, for the same equivalent strength and stiffness at lower cost. The processes of drying the particulate raw material and forming the composite wood products, by subjecting to heat and pressure, are virtually free from emissions of volatile organic compounds into the environment.Type: GrantFiled: December 27, 1995Date of Patent: September 9, 1997Assignee: North Pacific Paper CorporationInventors: Jerry R. Speaks, Roger O. Campbell, Michael A. Veal
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Patent number: 5656674Abstract: The invention manufactures mechanical strong objects from a mixture of a plurality of fractions, which together have a high filling grade by accommodating them in plastic, preferably a thermosetter of the low viscosity type. The plastic is preferably resistant against leaching as defined in the Concept Bouwstoffenbesluit, when pollutions in the fractions are present. Finally the invention gives objects with good mechanical properties at low cost price, because of the relatively small use of plastic (to only 8 volume % or less) and the favorable mechanical properties of strongly densified waste, residual or filler materials. Coloring of the objects is possible and the surface can be very smooth. Fibres or residues of fibres containing waste materials can improve the obtained products still further.Type: GrantFiled: May 25, 1994Date of Patent: August 12, 1997Assignee: Terra Ijssel B.V.Inventor: Harm Willem Holman
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Patent number: 5633299Abstract: The use of a curable resin composition as a binder in the production of a wood composite, wherein the curable resin composition comprises a copolymer of carbon monoxide with an olefinically unsaturated compound and a curing agent; a wood composite comprising wood parts adhered to one another by means of a cured binder which is obtainable by curing said curable resin composition; and an article of manufacture comprising said wood composite are provided.Type: GrantFiled: October 24, 1995Date of Patent: May 27, 1997Assignee: Shell Oil CompanyInventors: Martinus L. Van Druten, Herman P. Ruyter, Aletta A. Ten Hoeve, Evert Van Der Heide, Gerrit Vietje
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Patent number: 5612314Abstract: Neuropeptides, particularly vasoactive intestinal peptide(VIP) and fragments, mutations and derivatives thereof that have corresponding activities to which have been directly or indirectly linked at least one NO or NO.sub.2 group, and their uses, including the relaxation of smooth muscle in several tissues, including vascular smooth muscle (e.g., aorta) and nonvascular smooth muscle (e.g. trachea, sphincter of Oddi, gastrointestinal smooth muscle and corpus cavernosum smooth muscle), and particularly also for the diagnosis and treatment of human male impotence.Type: GrantFiled: April 21, 1995Date of Patent: March 18, 1997Assignees: Brigham & Women's Hospital, Trustees of Boston UniversityInventors: Jonathan Stamler, Inigo S. de Tejada
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Patent number: 5563196Abstract: A wet frictional material having a high heat resistance, excellent durability and superior initial conformability. The wet frictional material contains a fiber base material, a filler, a frictional adjustment agent and a thermosetting synthetic resin. The thermosetting synthetic resin comprises a silicone resin represented by the following average formula. The silicone resin contains a trifunctional unit (RSiO.sub.3/2) (where R represents a substituted or unsubstituted monovalent hydrocarbon group) in an amount of from 40 to 100 mol % of units constituting the silicone resin:(R.sup.1).sub.a (OR.sup.2).sub.b SiO.sub.(4-a-b)/2where R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and R.sup.2 represents a hydrogen atom or an organic group having from 1 to 10 carbon atoms, and 0.2.ltoreq.a.ltoreq.1.8 and 0<b.ltoreq.1.0).Type: GrantFiled: December 28, 1994Date of Patent: October 8, 1996Assignees: NSK-Warner Kabushiki Kaisha, Shin-Etsu Chemical Co., Ltd.Inventors: Shun Kitahara, Fumimasa Muramatsu, Shigeki Umezawa, Mitsuhiro Takarada, Tadashi Takahashi
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Patent number: 5539027Abstract: A polymer and wood composite structural members can be manufactured by extruding and injection molding a composition comprising polyvinyl chloride, wood fiber and optionally a concentration of an intentionally added waste stream. Such structural members have strength, workability, fastener retention, resistance to rot and insect attack, and thermal properties sufficient to constitute an advanced composite wood replacement material. The advanced structural member can be used as a component in construction of any structure requiring sized lumber or specifically shaped wood products. In such an application, the structural members can be extruded in the shape of commonly available lumber. The structural members of the invention can also be extruded in complex shapes adapted to the assembly of windows and doors used in both residential and commercial structures.Type: GrantFiled: October 20, 1994Date of Patent: July 23, 1996Assignee: Andersen CorporationInventors: Michael J. Deaner, Guiseppe Puppin, Kurt E. Heikkila
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Patent number: 5506285Abstract: To form a binder from naturally occurring products without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves. The protein has a thermoplastic microstructure with linear polymers of moleculer weight of at least 2,000 linked with peptide linkages of at least 50 in number. The naturally occurring product is ground or milled without further processing and thus includes carbohydrates, particularly as cellulose, and possibly fats, yeast or materials yielding ash upon burning, with the carbohydrates being at least 5 percent of the proteins by weight. The binder may include some initiators or catalysts to polymerize fats or other initiators or catalysts to polymerize proteins.Type: GrantFiled: June 17, 1994Date of Patent: April 9, 1996Assignee: The Board of Regents of the University of NebraskaInventors: Delmar C. Timm, Ayodeji J. Ayorinde, Harold E. Egger
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Patent number: 5502088Abstract: This invention refers to a wood substitute with lignocellulosic and mineral material particles which are molded in sheet, e.g. plates and/or panels in different thicknesses or forms in stencil at choice, using in principal natural and artificial, and vegetal cellulosic material components, e.g. dried leaves, sawdust, rotten wood particles splinters, paperwastes, roots and mineral materials as limestone from sulphates type carbonates or calcium oxides, with synthetic binders from different chemical structures, with or without dyes, in these proportions: 35-60 by weight lignocellulosic components particles, 5-35 by weight limestone types, 5-30 by weight synthetic binders from different harmless chemical structures, with or without synthetic dyes from varied chemical structures and with or without requested additions.Type: GrantFiled: June 6, 1994Date of Patent: March 26, 1996Inventor: Andrei Hododi
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Patent number: 5486553Abstract: A polymer and wood composite structural members can be manufactured by extruding and injection molding a composition comprising polyvinyl chloride, wood fiber and optionally a concentration of an intentionally added waste stream. Such structural members have strength, workability, fastener retention, resistance to rot and insect attack, and thermal properties sufficient to constitute an advanced composite wood replacement material. The advanced structural member can be used as a component in construction of any structure requiring sized lumber or specifically shaped wood products. In such an application, the structural members can be extruded in the shape of commonly available lumber. The structural members of the invention can also be extruded in complex shapes adapted to the assembly of windows and doors used in both residential and commercial structures.Type: GrantFiled: April 7, 1994Date of Patent: January 23, 1996Assignee: Andersen CorporationInventors: Michael J. Deaner, Giuseppe Puppin, Kurt E. Heikkila
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Patent number: 5468794Abstract: Room temperature vulcanizable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as 2,6 bis(trimethoxysilyltrimethyleneoxy)pyridine. Cohesive bonding is effected on various substrates.Type: GrantFiled: September 13, 1994Date of Patent: November 21, 1995Assignee: General Electric CompanyInventors: Judith Stein, Mark W. Davis
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Patent number: 5374670Abstract: To form a binder from naturally occurring products without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2000 linked with peptide linkages of at least 50 in number. The naturally occurring product is ground or milled without further processing and thus includes carbohydrates, particularly as cellulose, and possibly fats, yeast or materials yielding ash upon burning, with the carbohydrates being at least 5% of the proteins by weight. The binder may include some initiators or catalysts to polymerize fats or other initiators or catalysts to polymerize proteins.Type: GrantFiled: October 28, 1993Date of Patent: December 20, 1994Assignee: The Board of Regents of the University of NebraskaInventors: Ayodeji J. Ayorinde, Harold E. Egger, Delmar C. Timm
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Patent number: 5317047Abstract: This invention relates to a composition which may be used in particular for manufacturing stoppers and to a process for manufacturing same.A composition is principally constituted by particles of ligneous plant matters such as natural cork or wood, by a plastics material of closed cellular structure such as expansible microspheres, and by a binding agent; a stopper comprises at least one active part constituted by a composition according to the invention, and said binding agent is a glue suitable for contact with foodstuffs, for example of the polyurethane or acrylic type.The technical domain of the invention is that of the cork industry.Type: GrantFiled: September 22, 1992Date of Patent: May 31, 1994Assignee: Bouchons A Champagne Sabate, S.A.Inventors: Bernard Sabate, Joel Masse, Gerard Jeanty
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Patent number: 5278206Abstract: Scatterable binder in pulverized form, for binding spilled liquids, comprisinga) superabsorbers,b) Kieselguhr, peat, sawdust, wood meal, wood wool, straw, paper fibers, pulp or plastics in fibrous or milled form andc) polyglycol,the content of polyglycol being up to 30% by weight and wherein said scatterable binder is in pulverized form and is a means for binding spilled liquids.Type: GrantFiled: November 30, 1992Date of Patent: January 11, 1994Assignee: Cassella AktiengesellschaftInventors: Gerd Gobel, Ferdinand Angerer, Ulrich Riegel
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Patent number: 5256478Abstract: A cork chip moulding includes a mixture of cork chips and a viscoelastic material, which mixture is dispersed in or bound with a polyurethane. The cork chip moulding is superior in sound and heat insulations, and in rigidity.Type: GrantFiled: March 17, 1992Date of Patent: October 26, 1993Assignee: Ikeda Bussan Co., Ltd.Inventor: Kazuo Tanabe
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Patent number: 5246985Abstract: The rubber composition comprising a cellulosic material containing-processed powder product and rubber components and a studless tire having a tread portion that contains said rubber composition which is improved in the performance of travelling over snow and ice is disclosed.Type: GrantFiled: April 7, 1992Date of Patent: September 21, 1993Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yuichi Saito, Shuichi Sakamoto, Naohiko Kikuchi, Takao Wada, Mamoru Uchida, Kiyoshige Muraoka
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Patent number: 5240766Abstract: A composite gasket material includes a fiber component (3-15% by wt.), an elastomeric binder component (3-15% by wt.), and a solid filer component (60-90% by wt.). The material may additionally include a phenolic or epoxy resin (up to 5 wt. %) and a silicone resin (up to 5 wt. %). The filler includes as a component a salt formed from a multivalent metal cation and a sterically hindered dicarboxylic acid. The salt ingredient typically comprises from about 20 to 80 wt. % of the filler. Gaskets made from this composite material exhibit improved sealability and thermal stability while retaining other desirable mechanical properties. These materials are able to withstand operating temperatures up to about 450.degree. C.Type: GrantFiled: April 1, 1992Date of Patent: August 31, 1993Assignee: Hollingsworth & Vose CompanyInventor: Richard P. Foster
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Patent number: 5235021Abstract: A process for preparing phenol-formaldehyde resole resins by fractionating organic and aqueous condensates made by fast-pyrolysis of biomass materials while using a carrier gas to move feed into a reactor to produce phenolic-containing/neutrals in which portions of the phenol normally contained in said resins are replaced by a phenolic/neutral fractions extract obtained by fractionation.Type: GrantFiled: December 16, 1991Date of Patent: August 10, 1993Inventors: Helena L. Chum, Stuart K. Black, James P. Diebold, Roland E. Kreibich
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Patent number: 5194488Abstract: Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the water in a delayed manner after components (A) and (B) have been mixed.Type: GrantFiled: September 10, 1991Date of Patent: March 16, 1993Assignee: Bostik, Inc.Inventors: Gerhard Piestert, Bodo Muller
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Patent number: 5194461Abstract: A composite useful for structural components comprised of recycled high density polyethylene and herbaceous fibrous materials and a method to produce composites based on recycled high density polyethylene and chopped herbaceous fibers. An alternative structural composite is disclosed which is comprised of recycled low density polyethylene and chopped herbaceous fibrous material.Type: GrantFiled: June 26, 1991Date of Patent: March 16, 1993Assignee: University of Northern Iowa FoundationInventors: Barton L. Bergquist, Mohammed F. Fahmy
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Patent number: 5183837Abstract: Process for binding cellulosic materials with a binding agent composed of aqueous emulsion of polyisocyanates and a cellulose ether. The cellulose wither is present in amounts of 0.1-10% b.w.Type: GrantFiled: January 16, 1992Date of Patent: February 2, 1993Assignee: Presidenza del Consiglio dei Ministri - Ufficio del Ministro per il coordinamento delle Iniziativae per la Ricerca Scientifica e TecnologicaInventors: Agostino Lepori, Domenico Camaioni
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Patent number: 5153242Abstract: To form a composition board from naturally occurring products without extraction or purification steps, the naturally occurring material is held together with a binder that is added or is already within the naturally occurring material. In one embodiment, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2,000 linked with peptide linkages of at least 50 in number. The naturally occurring product is ground or milled without further processing and thus includes carbohydrates, particularly as cellulose, and possibly fats, yeast or materials yielding ash upon burning, with the carbohydrates being at least 5 percent of the proteins by weight. The binder may include some initiators or catalysts to polymerize fats or other initiators or catalysts to polymerize proteins.Type: GrantFiled: February 21, 1991Date of Patent: October 6, 1992Assignee: The Board of Regents of the University of NebraskaInventors: Delmar C. Timm, Ayodeji J. Ayorinde, Harold E. Egger
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Patent number: 5130352Abstract: Mouldable filled polyethylene compositions containing particulate lignocellulosic fillers are disclosed. The compositions contain 0-89.97% (by weight of the composition) of polyethylene, 0.01-89.99% (by weight of the composition) of grafted polymer, 10-60% (by weight of the composition) of particulate lignocellulosic material and 0.02-20% (by weight of the composition) of boric acid and/or borax. The boric acid and/or borax is added to suppress odor during manufacture and processing of the compositions. The compositions may be formed into moulded articles e.g. containers and the like.Type: GrantFiled: May 16, 1991Date of Patent: July 14, 1992Assignee: Canadian Forest Products Ltd.Inventor: Suezone Chow
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Patent number: 5091499Abstract: A process for preparing phenol-formaldehyde resole resins and adhesive compositions in which portions of the phenol normally contained in said resins are replaced by a phenol/neutral fractions extract obtained from fractionating fast-pyrolysis oils.Type: GrantFiled: December 29, 1989Date of Patent: February 25, 1992Assignee: Midwest Research InstituteInventors: Helena L. Chum, Roland E. Kreibich
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Patent number: 5049598Abstract: A rubber composition comprising a cellulosic material containing-processed powder product and rubber components and a studless tire having a tread portion that contains said rubber composition which is improved in the performance of travelling over snow and ice is disclosed.Type: GrantFiled: October 26, 1990Date of Patent: September 17, 1991Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yuichi Saito, Shuichi Sakamoto, Naohiko Kikuchi, Takao Wada, Mamoru Uchida, Kiyoshige Muraoka
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Patent number: 5047456Abstract: The invention provides a thermally reversible superabsorbent polymer adapted for use in melt processes, the polymer having a thermally reversible bond which is adapted to evanesce at an elevated temperature and revert to a thermally reversible bond upon cooling to ambient temperature so that the polymer is adapted, upon being heated to that elevated temperature, to dissociate into melt processable polymer fragments and, upon being cooled from that elevated temperature to ambient temperature, to re-associate. Also disclosed are superabsorbent polymer fibers and sheets formed from the thermally reversible superabsorbent polymer. The polymer fibers may be meltblown fibers which may be formed into a coherent nonwoven web. The meltblown fibers may include microfibers. The meltblown web may also include at least one type of secondary fiber, particulates or a mixture of fibers and particulates.Type: GrantFiled: April 21, 1989Date of Patent: September 10, 1991Assignee: Kimberly-Clark CorporationInventors: Fidelis C. Onwumere, Sharon L. Greene, Shirley H. Wright
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Patent number: 4882112Abstract: A process for producing sheets or other shaped articles which includes applying a solution or dispersion of a hydrophilic urethane prepolymer in a large excess of water, optionally containing an inert binder polymer, to vegetable particulate materials, shaping the resulting mass, curing and drying the shaped articles.Type: GrantFiled: December 31, 1986Date of Patent: November 21, 1989Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Hirohisa Maki, Eiichiro Suzuki
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Patent number: 4833182Abstract: A binder for use in the preparation of a synthetic board from cellulosic and/or lignocellulosic material comprising an organic polyisocyanate and a polyester polyol, especially an aromatic polyester polyol.Type: GrantFiled: July 21, 1988Date of Patent: May 23, 1989Assignee: Jim Walter Research Corp.Inventors: Michael G. Israel, George A. Grozdits, Ernest K. Moss
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Patent number: 4801418Abstract: A PVC-free sealing compound, particularly a sealing compound for use on containers, comprising a mixture of low density polyethylene or linear low density polyethylene; a styrene-isoprene-styrene block copolymer or a thermoplastic elastomeric blend of an ethylene-propylene copolymer such as EPM or EPDM, EVA and process oil, one or more fillers such as talc, and optionally cork powder.Type: GrantFiled: February 12, 1988Date of Patent: January 31, 1989Assignee: W. R. Grace & Co.Inventor: Bruno Bersano
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Patent number: 4801631Abstract: This invention relates to formaldehyde-free, aqueous glue dispersions which contain polyisocyanates. These systems are particularly suitable for gluing veneers and surface materials on wood and wood products. The systems are prepared from polyisocyanates in combination with extenders based on flours and cold water-soluble of hydrolyzed natural starch. In this process, polyisocyanates or aqueous dispersions thereof are added while stirring to aqueous solutions or mixtures of starch and flour.The extender-containing adhesive systems are aqueous glue dispersions having increased service life which in their preferred embodiment contain about 15 to 30% by weight of polyisocyanates, preferably polyphenyl-polymethylene polyisocyanate (PMDI), 10 to 15% by weight of starch which is soluble in cold water and 14 to 25% by weight of (cereal) flour and optionally, other additives and the appropriate quantity of water adding up to 100% by weight.Type: GrantFiled: February 6, 1987Date of Patent: January 31, 1989Assignee: Bayer AktiengesellschaftInventors: Hanns I. Sachs, Donald R. Larimer
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Patent number: 4748166Abstract: Storage stable, water-free, RTV organopolysiloxane adhesives curable in the presence of water or atmospheric moisture, and comprising a dihydroxydiorganopolysiloxane polymer, fillers, an amine fraction and a curing catalyst, are characterized by incorporation therein of a polyalkoxylated organosilane having the formula:R'.sub.x Si[(OCH.sub.2 CH.sub.2).sub.p OCH.sub.3 ].sub.4-xwherein R' is methyl, vinyl, allyl, methallyl or phenyl, and p and x are each one or two.Type: GrantFiled: May 28, 1986Date of Patent: May 31, 1988Assignee: Rhone-Poulenc IndustriesInventors: Alain Gautier, Bernard Laisney, Michel Letoffe
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Patent number: 4743636Abstract: A PVC-free sealing compound, particularly a sealing compound for use on containers, comprising a mixture of low density polyethylene or linear low density polyethylene; a styrene-isoprene-styrene block copolymer or a thermoplastic elastomeric blend of an ethylene-propylene copolymer such as EPM or EPDM, EVA and process oil, one or more fillers such as talc, and optionally cork powder.Type: GrantFiled: May 9, 1986Date of Patent: May 10, 1988Assignee: W. R. Grace & Co.Inventor: Bruno Bersano
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Patent number: 4722949Abstract: A non-asbestos friction composition capable of manufacturing in dry process is disclosed characterized in that, to a composition used 1 to 10 vol. % of aramid fiber pulp and 10 to 40 vol. % of inorganic fibers and added with binder resin and friction modifier, 1 to 6 vol. % of cork powder is added as a processing aid.Type: GrantFiled: October 31, 1986Date of Patent: February 2, 1988Assignees: Akebono Brake Industry, Co., Ltd., Akebono Research and Development Centre Ltd.Inventors: Kazuya Horiguchi, Kazushige Kiba
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Patent number: 4624880Abstract: A rail pad or other shaped article in the form of a resiliently compressible extrudate having a textured surface and comprising particles or granules of cork or similar resiliently compressible cellular material substantially homogenously dispersed throughout a polymeric matrix of generally saturated thermoplastic synthetic resin, preferably ethylene/vinyl acetate copolymer, which has a stiffness modulus of not more than 1000 MPa and is extrudable under conditions at which the cellular material is not significantly degraded, the extrudate having a Poissons ratio less than that of the matrix.Type: GrantFiled: March 18, 1985Date of Patent: November 25, 1986Assignee: James Walker & Co., LimitedInventors: Leslie B. Goulding, Ian F. Johnson
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Patent number: 4559376Abstract: A method to produce composites based on cellulose or lignocellulosic materials and plastics according to which method the cellulose or lignocellulose material is subjected to a pre-hydrolytic or other chemically degrading treatment prior to or during the compounding or processing step whereby a comminution and improved dispersion of the cellulose or lignocellulose material in the plastic phase is achieved.Type: GrantFiled: August 8, 1983Date of Patent: December 17, 1985Inventors: Josef Kubat, Tore C. F. Klason
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Patent number: 4508886Abstract: A method is described for making adhesive from biomass. A liquefaction oil is prepared from lignin-bearing plant material and a phenolic fraction is extracted therefrom. The phenolic fraction is reacted with formaldehyde to yield a phenol-formaldehyde resin.Type: GrantFiled: March 30, 1984Date of Patent: April 2, 1985Assignee: The United States of America as represented by the United States Department of EnergyInventors: Janet A. Russell, William F. Riemath
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Patent number: 4472563Abstract: Improved inhibitor systems are disclosed for the reaction of silicon hydride containing silicones with vinyl containing and/or hydroxyl containing silicones. The improved inhibitors are mixtures of conjugated ene-ynes and vinylcyclosiloxanes. Inhibition of cure at room temperature is combined with rapid cure at elevated temperature when the improved inhibitors are used.Type: GrantFiled: February 6, 1984Date of Patent: September 18, 1984Assignee: Dow Corning CorporationInventors: Grish Chandra, Peter Y. K. Lo, Yolanda A. Peters
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Patent number: 4425178Abstract: The invention is an improved hardener for use with phenolresorcinol-formaldehyde wood bonding adhesives. The hardener is conveniently made and shipped as a stable dry powdered material. It is then slurried in water at the point of use for convenience with continuously mixed and dispensed liquid-liquid, two part adhesive systems. The hardener comprises paraformaldehyde or alphapolyoxymethylene, fillers, viscosity and/or rheology control agents, and a solid acidic material. The latter ingredient is a critical component used to adjust the pH of an aqueous slurry to the range of 4.0 to 5.5. Oxalic acid is preferred. In this pH range, the formaldehyde polymers are stable and the slurried hardener does not give off significant formaldehyde odor for periods up to several days. Bonding performance is improved because the characteristics of the hardener and resulting adhesive have very little variation over time.Type: GrantFiled: November 16, 1981Date of Patent: January 10, 1984Assignee: Weyerhaeuser CompanyInventor: William C. Grendon
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Patent number: 4396733Abstract: The present invention relates to new azulmic acids stabilized by condensation with carbonyl compounds, several processes for their preparation and their use for various purposes.Type: GrantFiled: September 11, 1980Date of Patent: August 2, 1983Assignee: Bayer AktiengesellschaftInventors: Kuno Wagner, Kurt Findeisen
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Patent number: 4362827Abstract: The invention concerns the production of particle board with a very substantially lowered formaldehyde emission as well as suitable binding agents. According to the invention the binding agent used in the production of the board is a combination of a polyisocyanate with a aminoplast resin containing 0.25 to 0.625 moles of formaldehyde per mole equivalent of aminogroups. The particle boards thus obtained possess satisfactory mechanical properties and a strongly reduced formaldehyde emission.Type: GrantFiled: September 3, 1980Date of Patent: December 7, 1982Assignees: Methanol Chemic Nederland V.O.F., Stamicarbon B.V.Inventors: Arie Tinkelenberg, Henricus W. L. M. Vaessen, Kwai W. Suen
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Patent number: 4330442Abstract: An asbestos-free gasket forming composition is disclosed. The composition is preferably produced by removing water from an aqueous furnish composition comprising phenolic fibers, aromatic polyamide fibers, an inorganic or cork filler, a synthetic rubber binder, and a water insoluble hydroxide produced from a soluble salt selected from the group consisting of aluminum salts, ferric salts and stannic salts, by reaction with a sufficient amount of an alkaline hydroxide to provide a furnish pH within the range of from about 6 to about 10, and preferably of from about 7 to 8.Type: GrantFiled: May 7, 1980Date of Patent: May 18, 1982Assignee: Armstrong World Industries, Inc.Inventors: Charles M. Lindeman, Ralph D. Andrew
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Patent number: 4322320Abstract: Process for preparing platinum catalyzed SiH-olefin silicone compositions using hydroperoxy-containing inhibitors.Type: GrantFiled: April 28, 1980Date of Patent: March 30, 1982Assignee: General Electric CompanyInventor: Joseph C. Caprino