Vegetable Shell, Hull, Or Cob Ingredient, E.g., Nut Shells, Pits, Etc. Patents (Class 524/15)
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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: 5432214Abstract: A dehydrating plastics material composition of high moisture-absorption capacity, comprising:A) 50% to 80% by weight of one or more compatible thermoplastic or thermosetting polymers;B) 20% to 50% by weight of one or more dehydration agents;C) 2% to 8% by weight of one or more elastomers; andD) 1% to 4% by weight of fibers of lengths lying in the range 0.5 mm to 4 mm, the fibers being selected from: synthetic fibers, vegetables fibers, and animal fibers.A method of preparing such a composition.A package or container whose inside surface is constituted by a plastics material of the above composition.Type: GrantFiled: November 19, 1993Date of Patent: July 11, 1995Assignee: Airsec Industries, Societe AnonymeInventor: Didier Lancesseur
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Patent number: 5416139Abstract: Structural building materials or articles obtained from a composition comprising crop plants or residues therefrom and/or virgin or recycled polyolefin materials or plastics blended and combined with coloring agents which give the particular color desired to the structural articles and with bonding agents such as the natural thick sticky substance commonly found in sugarbeets to provide the necessary cohesiveness to the structural articles and/or with ultraviolet stabilizers and/or impact modifiers, which may be extruded through a profile die or compression molded or injection molded in a conventional mold in heated platens as such to produce the desired structural articles such as door jambs, door sills, garage jambs, deck materials, sheets of varied dimensions, sidings, shingles, door slabs, window sashes and frames, moldings, etc., which effectively replaces wood as the primary component of such structural articles.Type: GrantFiled: October 7, 1993Date of Patent: May 16, 1995Inventor: Dennis E. Zeiszler
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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: 5360842Abstract: A non-asbestos friction material containing friction dust comprising a composite of inorganic compound with polymerization product of cashew nut shell oil is disclosed. The material is used for the brake lining, disc pad and clutch facing for cars and industrial machinery.Type: GrantFiled: January 4, 1993Date of Patent: November 1, 1994Assignees: Akebono Brake Industry Co., Ltd., Akebono Research and Development Centre Ltd.Inventors: Katsuji Seki, Truong V. Hung
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Patent number: 5354621Abstract: A material for use in the construction of plates, films, food containers and like containers. The material is suitable for use with human foods, and comprises by-products from an agricultural milling process and a binder. The agricultural by-product is preferably selected from the group including corn hominy, wheat bran, soy hulls, rice hulls and oat hulls. The binder may be either inherent in the by-products or added to the by-products. If added, the binder may be synthetic or organic.Type: GrantFiled: July 2, 1992Date of Patent: October 11, 1994Assignee: Beltec InternationalInventor: Benno E. Liebermann
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Patent number: 5346930Abstract: A rigid fiberboard suitable as a replacement for the natural woods presently used for the manufacture of pencils is provided. The fiberboard essentially comprises a fiber network, together with a filler and binder. A lubricant is added to improve the sharpening characteristics of the fiberboard, and dimensional stability is preserved by incorporating a waterproofing agent to minimize the absorption of water by the fiber network.Type: GrantFiled: April 19, 1993Date of Patent: September 13, 1994Assignee: Lydall, Inc.Inventors: Richard L. Maine, Joseph W. Cook
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Patent number: 5334633Abstract: Compositions are provided for forming a coating on metal, plastic or wood substrate wherein the coating has the appearance and texture of wood, conceals joints on the surface of the substrate and is capable of accepting conventional wood stain.Type: GrantFiled: October 14, 1993Date of Patent: August 2, 1994Assignee: Marley Mouldings Inc.Inventor: Carroll W. Cope
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Patent number: 5334632Abstract: Compositions and a method are provided for forming a coated wood, plastic or metal product having the appearance and texture of wood grain. The joints on a wood surface are concealed by the coating and the coating is capable of accepting conventional wood stain.Type: GrantFiled: February 3, 1993Date of Patent: August 2, 1994Assignee: Marley Mouldings Inc.Inventor: Carroll W. Cope
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Patent number: 5252640Abstract: Compositions and a method are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: February 7, 1992Date of Patent: October 12, 1993Assignee: Marley Mouldings Inc.Inventor: Carroll W. Cope
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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: 5244945Abstract: A method is provided for preparing a cellulose ester plastic composition from waste paper (e.g. recycled paper) and/or sugar cane bagasse. The paper or bagasse is reacted with an acid anhydride in the presence of a catalyst to esterify some of the hydroxy groups on the cellulose. The resulting cellulose ester product is combined with various additives such as acetins, agricultural fillers, and carbon particles.Type: GrantFiled: July 20, 1992Date of Patent: September 14, 1993Assignee: International Communications & EnergyInventor: Glenn R. Elion
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Patent number: 5198481Abstract: Compositions and a method are provided for forming a coated wood, plastic or metal product having the appearance and texture of wood grain. The joints on a wood surface are concealed by the coating and the coating is capable of accepting conventional wood stain.Type: GrantFiled: September 21, 1990Date of Patent: March 30, 1993Assignee: Marley Mouldings Inc.Inventor: Carroll W. Cope
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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: 5110657Abstract: An anti-skid coating composition for coating various substrates including structural panel board surfaces, comprises a binder made of urea formaldehyde resin, polyvinyl acetate, ammonium chloride and a dispersant. The binder is used in conjunction with an aggregate, such as walnut shells. A method is also provided for coating the substrates to impart slip resistance thereto.Type: GrantFiled: May 22, 1990Date of Patent: May 5, 1992Assignee: Reichhold Chemicals, Inc.Inventor: Winston C. Ainslie
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Patent number: 5089313Abstract: Compositions and a method are provided for forming a coated metal or plastic surface having the appearance and texture of wood grain, which conceals joints on the surface and which is capable of accepting conventional wood stain.The present method utilizes a basecoat composition for covering a metal or plastic surface comprising a combination of resins, pigments, solvents, and additives for suspension, dispersion, wetting, thickening, flowing and anti-marring. A printing composition is also provided comprising resins, pigments, solvents, and tinting and wetting agents.Type: GrantFiled: August 29, 1989Date of Patent: February 18, 1992Assignee: Marley Mouldings Inc.Inventor: Carroll W. Cope
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Patent number: 5074946Abstract: It has now been found that when there is a partial or complete replacement of the sodium hydroxide that is used to make a sodium phenolate resole resin by a molar equivalent of potassium hydroxide, a far faster curing resin is obtained. Such potassium-modified phenolic resins exhibit significant improvement in cure speed without loss of flowability. To the contrary, these resins act as though they were lower molecular weight condensation products. Reduced application rates are possible. The combination of faster cure and lower application rates has allowed such resins to be used as effective adhesives for plywood, for example, with veneer and interior plies having a higher moisture content than was previously possible. Generally, resins according to the invention may contain from about 1% to about 14%, and preferably from about 1% to about 7% by weight, of potassium hydroxide, or more.Type: GrantFiled: July 18, 1988Date of Patent: December 24, 1991Assignee: Borden, Inc.Inventor: Nick K. Daisy
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Patent number: 5075413Abstract: A fire resistant resin for use as a binder in reinforced plastics and a resultant reinforced plastic includes the reaction product of (a) at least one resorcinol component selected from the group consisting of resorcinol and resorcinol formaldehyde novolak resin, and (b) a phenolic resole resin. The reaction may be achieved in the presence of an alkaline catalyst.A method of making a fire resistant resin binder for reinforced plastics and the method of making such reinforced plastics including, (a) at least one resorcinol component selected from the group consisting of resorcinol and resorcinol formaldehyde novolak resin, and (b) a phenolic resole resin. The reaction may be achieved in the presence of an alkaline catalyst.Type: GrantFiled: September 4, 1990Date of Patent: December 24, 1991Assignee: Indspec Chemical CorporationInventor: Theodore H. Dailey, Jr.
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Patent number: 5075414Abstract: A fire resistant resin for use as a binder in reinforced plastics and a resultant reinforced plastic includes the reaction product of (a) at least one resorcinol component selected from the group consisting of resorcinol and resorcinol formaldehyde novolak resin, and (b) a phenolic resole resin. The reaction may be achieved in the presence of an alkaline catalyst.A method of making a fire resistant resin binder for reinforced plastics and the method of making such reinforced plastics including, (a) at least one resorcinol component selected from the group consisting of resorcinol and resorcinol formaldehyde novolak resin, and (b) a phenolic resole resin. The reaction may be achieved in the presence of an alkaline catalyst.Type: GrantFiled: September 4, 1990Date of Patent: December 24, 1991Assignee: Indspec Chemical CorporationInventor: Theodore H. Dailey, Jr.
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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: 5000029Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.Type: GrantFiled: March 5, 1990Date of Patent: March 19, 1991Assignee: Rhone-Poulenc ChimieInventors: Claude Laurent, Paul Rostaing, Rene Lyobard
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Patent number: 4980402Abstract: Compositions and a method are provided for forming a coated wood, plastic or metal product having the appearance and texture of wood grain. The joints on a wood surface are concealed by the coating and the coating is capable of accepting conventional wood stain.Type: GrantFiled: December 15, 1988Date of Patent: December 25, 1990Assignee: Marley Mouldings, Inc.Inventor: Carroll W. Cope
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Patent number: 4935457Abstract: A composition and method for producing a fiberboard. The fiberboard is produced from a mixture of wood-containing material, a binder, a waterproofing agent and a liquid concentrate. The liquid concentrate contains boric acid or a derivative thereof, a water soluble compound which includes an alcohol and a water soluble amine-containing compound, and optionally water. The mixture is intermixed and subsequently pressed at a predetermined compacting pressure and a predetermined temperature.Type: GrantFiled: October 22, 1987Date of Patent: June 19, 1990Assignee: Deutsche-Solvay Werke GmbHInventors: Wolfgang Metzner, Eberhard Osterloff, Detlef Seepe
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Patent number: 4926673Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, include a crosslinked fluid organopolysiloxane having at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.Type: GrantFiled: January 27, 1989Date of Patent: May 22, 1990Assignee: Rhone-Poulenc ChimieInventors: Claude Laurent, Paul Rostaing, Rene Lyobard
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Patent number: 4921891Abstract: Compositions and a method are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: February 9, 1989Date of Patent: May 1, 1990Assignee: Di Giorgio CorporationInventor: Carroll W. Cope
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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: 4866110Abstract: A thermoplastic molded product useful in vehicle linings such as door trim, shelf covering and package trays is formed from a resin into a thin plate. The product is formed from a substantially uniform admixture of from about 50 to 60 weight percent of a polypropylene, from 30 to 35 weight percent of a wood flour, from 2 to 3 weight percent of a leather powder, from 2 to 3 weight percent of a defatted rice bran powder, from 2 to 3 weight percent of an asbestos fiber, from 2 to 2.5 weight percent of a waste cotton, from 1.7 to 2.3 weight percent of a chopped glass fiber, and from 0.8 to 1.2 weight percent of a calcined diatomaceous earth.Type: GrantFiled: July 9, 1987Date of Patent: September 12, 1989Assignee: Han Il E'wha Co., Ltd.Inventor: Chang Y. Lee
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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: 4829107Abstract: A cement admixture and cement composition containing said admixture comprising finely ground rice hull ash formed by slurry grinding of said ash to a volume medium particle diameter or up to 4 micrometers.Type: GrantFiled: February 24, 1988Date of Patent: May 9, 1989Assignee: W. R. Grace & Co.-Conn.Inventors: Lawrence J. Kindt, Ellis M. Gartner
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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: 4778530Abstract: Finely divided almond shell flour is used as an extender in plywood- and laminating-adhesives, alone or in combination with other, different, vegetable shell flours.Type: GrantFiled: November 9, 1987Date of Patent: October 18, 1988Assignee: Agrashell, Inc.Inventor: Joseph W. Ayers
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Patent number: 4746688Abstract: This invention is directed to a thermoplastic composition comprising polyolefin resin, cellulosic particulate and crosslinked elastomeric rubber microparticles, which composition can be extruded into sheets and subsequently remolded into three dimensional, thermoplastic articles having sound-deadening properties. Preferably, the polyolefin is polypropylene homopolymer and the cellulosic particulate is woodflour.Type: GrantFiled: May 21, 1987Date of Patent: May 24, 1988Assignee: Ford Motor CompanyInventors: Leo T. Bistak, Daniel C. Himebaugh
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Patent number: 4692478Abstract: The process of preparing a formaldehyde-free, thermosetting resin which is especially useful for bonding lignocellulosic materials together to form plywood or particle board, which process comprises first reacting an aqueous preparation containing a carbohydrate raw material with a mineral acid to convert the carbohydrate to polymerizable reactants and second reacting the polymerizable reactants with ammonia to form the thermosetting resin. The resin can be further cross-linked to form an insoluble resinous material by heating.Type: GrantFiled: March 14, 1986Date of Patent: September 8, 1987Assignee: Chemical Process CorporationInventors: Tito Viswanathan, Donald H. Westermann
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Patent number: 4638022Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: March 24, 1986Date of Patent: January 20, 1987Assignee: DG Shelter ProductsInventor: Carroll W. Cope
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Patent number: 4608408Abstract: A phenol-resorcinol-formaldehyde resin and a method for making the same. In this method phenol and formaldehyde at an initial pH of 8.5 to 9.2 are reacted in the presence of a sodium sulfite catalyst. The reaction mixture is heated and refluxed until it has a viscosity of u-v on the Gardner bubble test. Additional resorcinol is added to the mixture and refluxing is continued until it has a viscosity of 30 to 100 Garner sections. The reaction mixture is diluted with a water miscible solvent to obtain a resin solution having a solids content of about 40 to 60 percent by weight and a viscosity of 2.0 to 3.5 poise. An alkali metal carbonate material in the amount of 4 to 8 percent by weight of the resin is added to make adhesives including this resin fast curing. Fumed silica is also added to the resin solution by means of high shear apparatus to make the solution thixotropic.Type: GrantFiled: April 24, 1985Date of Patent: August 26, 1986Assignee: Koppers Company, Inc.Inventors: Richard T. Hood, Raymond L. Bender
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Patent number: 4572815Abstract: A method of making insulation wherein peanut hulls are screened successively through three screens providing a very coarse grade of hulls to be reground, a coarse grade and a medium grade for blown insulation, and a fine grade mixed with dust formed into building panels.Type: GrantFiled: March 7, 1983Date of Patent: February 25, 1986Inventor: Walter L. Kaiser
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Patent number: 4562218Abstract: The present invention concerns our discovery that aqueous cellulosic slurries comprising primary binder, newsprint, sulfite pulp, and vegetable shell flour can be prepared and formed as desired into various configurations. The materials thus formed are usable for a variety of purposes including furniture, paneling and flooring structures.Type: GrantFiled: September 16, 1983Date of Patent: December 31, 1985Assignee: Armstrong World Industries, Inc.Inventors: J. Stephen Fornadel, Harry F. Long
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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: 4546133Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: December 30, 1983Date of Patent: October 8, 1985Assignee: DG Shelter ProductsInventor: Carroll W. Cope
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Patent number: 4514532Abstract: A modified phenol-formaldehyde binding resin is particularly useful in the formation of man-made boards including bonded fibers, fibrous particles, and a plurality of uniformly, or randomly shaped pieces, masses or sheets bonded together with the modified phenol-formaldehyde binding resin. The resin binder is especially adapted to bonding wood fibers and particles, comprising the condensation product of a phenol, formaldehyde and a water-soluble carbohydrate-phenol complex from steam digestion of wood chips, and the production thereof. Various objects can be manufactured using these resins, such as particle objects and objects or sheet materials made by bonding together a plurality of uniformly or randomly shaped masses, for example, fiberboards such as hardboard and insulation board; particle board; plywood; oriented strand board; and waferboard.Type: GrantFiled: February 17, 1984Date of Patent: April 30, 1985Assignee: Masonite CorporationInventors: Oscar H. H. Hsu, Milford C. Tassler
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Patent number: 4496674Abstract: The present invention relates to gasketing materials comprising a rubber binder, a pulverized rice hull filler and a polyester which preferably is crystallizable. The rice hull material acts as a reinforcing filler and, in combination with the rubber and polyester, provides gasketing materials which demonstrate the ability to conform to flange irregularities. As a result, the gaskets demonstrate remarkable sealing capabilities. When they comprise nitrile rubbers, they are also resistant to fuel absorption.Type: GrantFiled: November 17, 1983Date of Patent: January 29, 1985Assignee: Armstrong World Industries, Inc.Inventors: Wendell A. Ehrhart, Ronald S. Lenox, Moses Sparks, Jr.
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Patent number: 4480061Abstract: Articles having wood-like properties and appearance are obtained from compositions comprising 5-55% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters or salts of said unsaturated acids, etc.; 1-15% by weight of at least one plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers and polyetheresters; 20-90% by weight of cellulosic filler or mixture of cellulosic filler and mineral filler; 0-10% by weight of at least one additive, such as organic acid, organic acid derivative and surface active agent; and 0-44% by weight of certain ethylene and propylene homo- and copolymers.Type: GrantFiled: December 28, 1982Date of Patent: October 30, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventors: Michael C. Coughlin, Timothy T. Schenck
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Patent number: 4476265Abstract: Poly(arylene sulfide) compositions are pigmented with black carbonaceous pigments selected from at least one of finely divided bituminious coal, carbonized rice hulls, bone blacks, and micropulverized petroleum coke in an amount sufficient to provide the black pigmentation desired with little or no deleterious effect on the mechanical properties such as flexural and tensile strengths of the resin.Type: GrantFiled: August 25, 1983Date of Patent: October 9, 1984Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell, Jr.
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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: 4472545Abstract: Articles having leather-like appearance are obtained from compositions comprising 5-55% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, ethylene/.alpha.-olefin copolymers, etc.; 1-15% by weight of at least one plasticizer selected from the group consisting of processing oils, epoxidized oils polyesters, polyethers and polyetheresters; 20-90% by weight of cellulosic filler or mixture of cellulosic filler and mineral filler; 0-10% by weight of at least one additive, such as organic acid, organic acid derivative and surface active agent; and 0-27.5% by weight of elastomeric polymer.Type: GrantFiled: December 28, 1982Date of Patent: September 18, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventors: Michael C. Coughlin, Timothy T. Schenck
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Patent number: 4438228Abstract: Filled thermoplastic compositions useful, e.g., as sound-deadening sheeting for automotive carpet are obtained by blending about 5-55% by weight of ethylene/.alpha.-olefin copolymer, the .alpha.-olefin containing from 4 to 10 carbon atoms; about 2-12% by weight of plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers and polyether esters; about 40-90% by weight of filler; and optionally elastomeric polymers.Type: GrantFiled: June 15, 1981Date of Patent: March 20, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Timothy T. Schenck
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Patent number: 4434258Abstract: Filled thermoplastic compositions having enhanced elongation and useful, e.g., as sound-deadening sheeting for automotive carpet, are obtained by blending about 0-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 0-20% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 40-90% by weight of filler; from about 0.05 to about 5.Type: GrantFiled: January 15, 1982Date of Patent: February 28, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventors: Frederick G. Schumacher, Walter Yllo
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Patent number: 4434261Abstract: Extrudable, self-supporting, nonblocking hot melt adhesive sheet is obtained by blending about 10-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 2-30% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 20-80% by weight of filler; from 0 to about 10% by weight of at least one additive, such as organic acids, organic acid derivatives and surface active agents.Type: GrantFiled: August 6, 1982Date of Patent: February 28, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward G. Brugel, Walter Yllo