From Aldehyde Or Derivative Reactant Patents (Class 524/593)
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Patent number: 5459209Abstract: An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of oxidized ethylene-carbon monoxide copolymer.Type: GrantFiled: April 8, 1994Date of Patent: October 17, 1995Assignee: AlliedSignal Inc.Inventor: Michael Jablon
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Patent number: 5447986Abstract: A gellable composition for oil field operations and a process for accelerating the gelation of the gellable composition for shut-in well are disclosed. The composition comprises: (1) an ammonium ion donor; (2) a water soluble acrylamide-containing polymer; (3) a first crosslinking component selected from the group consisting of aldehydes and aldehyde-generating compounds; (4) a second crosslinking component selected from the group consisting of an aromatic compound and an alcohol where the aromatic compound is selected from the group consisting of phenols and acids; and (4) water.Type: GrantFiled: June 29, 1992Date of Patent: September 5, 1995Assignee: Phillips Petroleum CompanyInventors: Kelly B. Fox, Alvin Evans, Jr.
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Patent number: 5444117Abstract: The present invention relates to a coating composition having an improved pot life without a corresponding increase in dry time when cured under ambient conditions which containsa) a polyisocyanate component,b) an aldimine based on the reaction product of a polyamine having 2 or more primary amino groups with an aldehyde corresponding to the formula:O.dbd.CHCH(R.sub.1)(R.sub.2)wherein R.sub.1 and R.sub.2 may be the same or different and represent optionally substituted hydrocarbon radicals, or R.sub.1 and R.sub.2 together with the .beta.-carbon atom form a cycloaliphatic or heterocyclic ring andc) 0.1 to 15 weight percent, based on the total weight of the coating composition, of a water-adsorbing zeolite,wherein components a) and b) are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to aldimine groups of 0.5:1 to 20:1.Type: GrantFiled: February 9, 1994Date of Patent: August 22, 1995Assignee: Bayer CorporationInventors: Robert A. Wade, Terrell D. Wayt
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Patent number: 5432227Abstract: A phenolic resin molding material comprising a phenolic resin, an organic filler, an inorganic filler and a liquid substance having a boiling point of 80.degree.-150.degree. C., said phenolic resin comprising, as its main component, a novolac type phenolic resin wherein the ratio of the o-methylene bond to the p-methylene bond with respect to the phenol nucleus ranges from 1.0 to 2.5.Type: GrantFiled: February 12, 1993Date of Patent: July 11, 1995Assignee: Sumitomo Bakelite Company LimitedInventor: Norihisa Fujimura
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Patent number: 5373051Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.Type: GrantFiled: October 12, 1993Date of Patent: December 13, 1994Assignee: Ucar Carbon Technology CorporationInventors: Irwin C. Lewis, Terrence A. Pirro, Ronald A. Greinke, Richard I. Bretz, Dennis J. Kampe
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Patent number: 5354788Abstract: A phenolic resole resin for use as a foundry binder which has been internally modified to reduce its hot strength and thereby enhance its shakeout property is disclosed. The resin is the reaction product of a phenolic compound; a dialdehyde; and formaldehyde. A process of preparing such resin is also disclosed, comprising first reacting the phenolic compound and the dialdehyde, and subsequently reacting the product with the formaldehyde. The resin may be, in a preferred embodiment, an ester-curable alkaline phenolic resin. Also disclosed are a raw batch formulation including the resin of the invention, and foundry articles prepared therefrom.Type: GrantFiled: September 10, 1993Date of Patent: October 11, 1994Assignee: Borden, Inc.Inventors: Calvin K. Johnson, David R. Armbruster, Sudhir K. Trikha
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Patent number: 5344909Abstract: A latent catalyzed phenolic resin composition is provided containing a thermosetting phenolic resole resin and a latent catalyst consisting essentially of a primary or secondary amine salt of a strong acid.Type: GrantFiled: June 3, 1993Date of Patent: September 6, 1994Assignee: Georgia-Pacific Resins, Inc.Inventors: David A. Hutchings, Ted M. McVay, Richard F. Pennock
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Patent number: 5344874Abstract: A process for producing a condensed resin dispersion, which comprises subjecting an aldehyde and a compound condensable with the aldehyde, or their precondensate, to a condensation reaction in a dispersion medium consisting essentially of water and/or an organic solvent, to precipitate fine condensed resin particles which hardly settle in said dispersion medium, and then replacing the water and/or the organic solvent by an active hydrogen-containing compound having at least two active hydrogen-containing groups reactive with isocyanate groups.Type: GrantFiled: July 8, 1991Date of Patent: September 6, 1994Assignee: Asahi Glass Company Ltd.Inventors: Takao Doi, Noriko Itaya, Masami Yamashita, Nobuaki Kunii
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Patent number: 5332792Abstract: An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of oxidized ethylene-carbon monoxide copolymer having an acid number as determined by standardized titration of KOH of between about 4 and about 30 and a Brookfield viscosity at a temperature of 140.degree. C. of between about 50 and about 800 centipoises.Type: GrantFiled: August 19, 1993Date of Patent: July 26, 1994Assignee: AlliedSignal Inc.Inventor: Michael Jablon
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Patent number: 5290834Abstract: A method is disclosed for controlling the elution rate of a stainproofing agent from treated fibriform or corded materials, prior to immersion in seawater, which method comprises treating the fibriform or corded material with a composition which comprises 4,5-dichloro-2-n-octylisothiazoline-3-one, a homo- or copolymer or a (poly)oxyethylene (meth)acrylate ester, one or more of a dialkylpolysulfide, polybutene, xylene/formaldehyde polycondensate and a nine-carbon aromatic hydrocarbon/formaldehyde polycondensate, and an organic solvent. The treated material is also disclosed.Type: GrantFiled: December 4, 1991Date of Patent: March 1, 1994Assignee: Rohm & Haas CompanyInventors: Osamu Kadota, Koichiro Tsurumi
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Patent number: 5280063Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component which when treated with the catalyst will provide a carbon yield of at least 40% at an elevated baking temperature and possess a flexural strength which is above at least 750 psi at room temperature and at said elevated temperature.Type: GrantFiled: April 17, 1992Date of Patent: January 18, 1994Assignee: Ucar Carbon Technology CorporationInventors: Irwin C. Lewis, Terrence Pirro, Ronald A. Greinke, Richard I. Bretz, Dennis J. Kampe
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Patent number: 5276130Abstract: According to the present invention, a .beta.-dicarbonyl functionality, an .alpha.,.beta.-unsaturation functionality, or a vinylogous amide functionality is incorporated into an aminoplast resin or an aminoplast resin precursor.Type: GrantFiled: October 30, 1991Date of Patent: January 4, 1994Assignee: BASF CorporationInventors: Christopher J. Bradford, Adriana E. Ticu, Richard E. De Schepper
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Patent number: 5274040Abstract: Reinforced polymer blends with improved mechanical properties are produced from a blend of a polyketone polymer and an uncured phenolic-based novolac resin, reinforced with glass fibers.Type: GrantFiled: October 16, 1992Date of Patent: December 28, 1993Assignee: Shell Oil CompanyInventor: Joseph M. Machado
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Patent number: 5243015Abstract: A latent catalyzed phenolic resin composition is provided containing a thermosetting phenolic resole resin and a latent catalyst consisting essentially of a primary or secondary amine salt of a strong acid.Type: GrantFiled: June 25, 1992Date of Patent: September 7, 1993Assignee: Georgia-Pacific Resins, Inc.Inventors: David A. Hutchings, Ted M. McVay, Richard F. Pennock
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Patent number: 5232969Abstract: Novel moldable, highly stable, normally solid polyoxymethylene resin compositions and molded articles formed of the same include a stabilizing effective amount of an alkoxy-substituted phenoxy-containing compound having the formula (I) or (II):Ar.sup.1 --O--X (I)Ar.sup.2 (--O--X).sub.s (II)where Ar.sup.1 represents an aryl group having no hydroxyl groups directly bonded thereto as a substituent, Ar.sup.2 represents a benzene or naphthalene ring having no hydroxyl groups directly bonded thereto as a substituent, and s represents the number of alkoxy-derivative substituents. Preferably, Ar.sup.1 in formula (I) is a phenyl, biphenyl or naphthyl group, and Ar.sup.2 in formula (II) is benzene (with s being 2). Ar.sup.1 and Ar.sup.2 in formulas (I) and (II) may only be substituted with the --OX group, or may also contain other alkoxy group substituents.Type: GrantFiled: December 19, 1991Date of Patent: August 3, 1993Assignee: Polyplastics Co., Ltd.Inventors: Toshiro Murao, Kaoru Yamamoto, Keiichi Kanaka, Mitsuharu Kusagaya
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Patent number: 5225471Abstract: Melt blended filled thermoplastic resin compositions include a thermoplastic matrix resin, a filler material and a thermoplastic additive resin. The compositions of the invention include discreet continuous phases of matrix resin and additive resin, with the filler material being present essentially entirely within the additive resin phase (i.e., essentially absent from the matrix resin phase). More specifically, the components are selected so that their respective surface tensions allow the additive resin to form a complex three-dimensional interpenetrating network structure within the matrix resin when melt-blended, and such that essentially all of the filler material is homogeneously dispersed throughout the formed three-dimensional network structure.Type: GrantFiled: December 26, 1991Date of Patent: July 6, 1993Assignee: Polyplastics, Co., Ltd.Inventors: Yoshihisa Tajima, Mitsuru Yokouchi
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Patent number: 5218041Abstract: Polyoxymethylene molding materials having improved thermal stability and reduced formaldehyde emission consisting essentially of a polyoxymethylene as the main component and containing in addition, relative in each instance to the weight of the polyoxymethylene, 0.1 to 10% by weight of an endocopolymerizate, 0.05 to 3% by weight of a phenolic antioxidant, 0 to 5% by weight carbon black and 0 to 3% by weight of further additives customary in polyoxymethylene molding materials.Type: GrantFiled: October 7, 1991Date of Patent: June 8, 1993Assignee: Degussa AktiengesellschaftInventors: Detlef Arnoldi, Edwin Nun
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Patent number: 5191006Abstract: An oxymethylene copolymer composition which comprises an intimate mixture containing:(A) 100 parts by weight of an oxymethylene copolymer,(B) 0.01 to 2 parts by weight of an ester composed of a polyhydric alcohol having 2 to 10 carbon atoms and a higher fatty acid having 22 to 32 carbon atoms, and(C) 0.01 to 3 parts by weight of an alkaline earth metal salt of a fatty acid having 12 to 35 carbon atoms.Type: GrantFiled: June 24, 1991Date of Patent: March 2, 1993Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Isamu Matsumoto, Zenpei Mizutani, Hiroshi Yada, Yoshihito Hara
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Patent number: 5162428Abstract: A phenolic resin composition comprising (a) 30-55% by weight of an alkylbenzene-modified novolac type phenolic resin, (b) 30-55% by weight of a novolac type phenolic resin and (c) 15-30% by weight of a dimethylene ether resole type phenolic resin, and a phenolic resin molding material comprising said composition.Type: GrantFiled: August 21, 1990Date of Patent: November 10, 1992Assignee: Sumitomo Bakelite Company LimitedInventors: Ken Katoh, Keiji Ooi
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Patent number: 5128405Abstract: Polyoxymethylene molding compositions include a polyoxymethylene base resin and contain, based upon the weight of the polyoxymethylene base resin, between 0.01 to 5% by weight of a hindered phenolic antioxidant, and between 0.01 to 5% by weight of an amine polymer having a molecular weight of at least 1000 and comprised essentially of structural units of the following formula (1): ##STR1## wherein R represent a hydrogen atom, an alkyl group, a phenyl group, an alkyl-substituted phenyl group, an NH.sub.2 group directly bonded to the carbon atom, or --X--NH.sub.2 -- where X represents an alkylene group, a carbonyl group, a carboxyalkylene group, an alkyleneoxycarbonylalkyl group, a phenylene group, an alkyl-substituted phenylene group, an amido group or an alkyleneamido group.Type: GrantFiled: December 20, 1990Date of Patent: July 7, 1992Assignee: Polyplastics Co., Ltd.Inventor: Noriyuki Sugiyama
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Patent number: 5096951Abstract: A polyoxymethylene molding composition which exhibits improved ambient and heat aged color stability includes a metal deactivator and calcium hydroxystearate. One preferred composition of the invention includes: (a) greater than about 95 weight percent of polyoxymethylene, (b) between about 0.01 to about 0.1 weight percent of 3 salicyloyl-amido-1,2,4 triazole or tris-2-tert.butyl- 4-thio-(2'methyl-4'hydroxy-5'tert.butyl) phenyl-5-methyl phenyl phosphite, (c) between about 0.015 to about 0.4 weight percent of 2,4,6-triamino-sym-triazine, (d) between about 0.25 to about 1.0 weight percent of tetrakis(methylene-(3,5-di-tert-butyl- 4-hydroxyhydrocinnamate)) methane, (e) between about 0.05 to about 0.2 weight percent of calcium 12-hydroxystearate, and (f) between about 0.1 to about 0.3 weight percent of N-N'-ethylenebisstearamide. Due to their enhanced color stability, the compositions of this invention find particular utility as molded automobile components.Type: GrantFiled: December 13, 1990Date of Patent: March 17, 1992Assignee: Hoechst Celanese CorporationInventor: Andrew Auerbach
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Patent number: 5068279Abstract: A melamine-formaldehyde detackifer having less than 0.15% free formaldehyde comprises a melamine-formaldehyde polymer detackifier to which has been added a formaldehyde scavenging agent comprising an effective amount of urea, and an enhancer selected from glyoxal and acetylacetone. The use of the low free formaldehyde detackifier is also described.Type: GrantFiled: March 30, 1990Date of Patent: November 26, 1991Assignee: Calgon CorporationInventor: Lewis D. Morse
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Patent number: 5043118Abstract: An injection moldable ceramic composition is prepared by mixing a sinterable powder, a polyacetal binding agent and silicon carbide whiskers which have been coated with a polyacetal resin.Type: GrantFiled: December 18, 1989Date of Patent: August 27, 1991Assignee: Hoechst Celanese Corp.Inventors: Hongkyu Kim, George L. Collins, O. Richard Hughes
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Patent number: 5030678Abstract: Disclosed are cationic aqueous emulsions containing (a) sizing composition comprising the reaction product of melamine formaldehyde compound, long chain saturated alcohol and long chain saturated or unsaturated polyethoxylated alcohol; and (b) cationic surfactant. The emulsions when used to surface size paper impart improved oil, water and polar solvent resistance thereto. The emulsions may be used alone or as substantial replacements for anionic or non-ionic fluorocarbon based emulsions that are typically used to impart oil resistance to paper.Type: GrantFiled: July 2, 1990Date of Patent: July 9, 1991Assignee: PPG Industries, Inc.Inventors: Sai H. Hui, Mean-Jeng Hou
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Patent number: 5030685Abstract: A process for producing a condensed resin dispersion, which comprises subjecting an aldehyde and a compound condensable with the aldehyde, or their precondensate, to a condensation reaction in a dispersion medium consisting essentially of water and/or an organic solvent, to precipitate fine condensed resin particles which hardly settle in said dispersion medium, and then replacing the water and/or the organic solvent by an active hydrogen-containing compound having at least two active hydrogen-containing groups reactive with isocyanate groups.Type: GrantFiled: September 28, 1989Date of Patent: July 9, 1991Assignee: Asahi Glass Company, Ltd.Inventors: Takao Doi, Noriko Itaya, Masami Yamashita, Nobuaki Kunii
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Patent number: 4987174Abstract: A polyacetal resin composition for use in producing molded articles of low gloss comprises the polyacetal and an aluminosilicate fiber.Type: GrantFiled: December 5, 1989Date of Patent: January 22, 1991Assignee: Hoechst Celanese CorporationInventors: Edwina Ying, Conrad G. Hayes
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Patent number: 4987176Abstract: Reinforced polyoxymethylene materials containing(A) one or more polyoxymethylene homopolymers and/or copolymers and(B) wollastonite, advantageously in a weight ratio of components (A) to (B) of from 95:50 to5:50, with or without(C) additives in effective amounts, the wollastonite crystals (B) have a mean thickness equal to or smaller than 5 .mu.m and a mean length/thickness ratio equal to or greater than 5. The molding materials are prepared by introducing the wollastonite crystals (B) into the melt of component (A) at from 180.degree. to 260.degree. C., advantageously by means of an extruder.Type: GrantFiled: July 20, 1988Date of Patent: January 22, 1991Assignee: BASF AktiengesellschaftInventors: Heiner Goerrissen, Gerhard Heinz, Albrecht Hilt, Georg N. Simon
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Patent number: 4957999Abstract: A process for curing aminoplast resins using a catalyst comprising a hexamethylenetetramine salt of a strong acid, resins produced according to the process, and the use of such resins in the manufacture of particle boards.Type: GrantFiled: June 5, 1989Date of Patent: September 18, 1990Assignee: Norsolor S.A.Inventors: Roger Garrigue, Jack Lalo, Andre Vignau
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Patent number: 4921885Abstract: A low warp, filled polyoxymethylene composition comprises a bimodal distribution of glass beads.Type: GrantFiled: July 12, 1988Date of Patent: May 1, 1990Assignee: Hoechst Celanese CorporationInventors: Derrick B. McKie, Andris Olukalns
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Patent number: 4900769Abstract: An acetal resin composition comprising (A) 100 parts of an acetal resin, (B) 0.01 to 2 parts by weight of a higher fatty acid ester derived from a polyhydric alcohol having 2 to 10 carbon atoms as an alcohol component and a higher fatty acid having 22 to 32 carbon atoms as an acid component and, optionally, (C) 0.01 to 2 parts by weight of a linear fatty acid having at least 10 carbon atoms.Type: GrantFiled: May 25, 1988Date of Patent: February 13, 1990Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masaharu Kimura, Zenpei Mizutani, Hiroya Fujii
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Patent number: 4898908Abstract: Novel anionic polymeric hydrogels based on sulfonated amino aldehyde resins and a process for preparing such hydrogels are described. The hydrogels may include poly(N-vinyl 2-pyrrolidone) and other additives. Such hydrogels may be prepared by a four step process in which melamine and/or urea are reacted with formaldehyde, sulfonated, condensed to form a viscous gel and dried.Type: GrantFiled: January 26, 1989Date of Patent: February 6, 1990Assignee: Kuwait Institute for Scientific ResearchInventors: Shawqui Lahalih, George Hovakeemian
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Patent number: 4857581Abstract: Cationic paint binders obtained through reaction of substituted ureas with formaldehyde and phenols are described. The substituted ureas are obtained through reaction of an isocyanate compound carrying at least one free, and optionally also blocked, NCO-group with equivalent quantities of a secondary non-aromatic amine. After partial protonation, the binders are used in water-dilutable paints, particularly in cathodically depositable electrodeposition paints.Type: GrantFiled: December 15, 1987Date of Patent: August 15, 1989Assignee: Vianova Kunstharz, A.G.Inventors: Willibald Paar, Anton Arzt
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Patent number: 4837400Abstract: Polyoxymethylene molding materials having improved heat stability and consisting of(A) one or more polyoxymethylene homopolymers and/or copolymers and(B) one or more antioxidants having a sterically hindered phenolic structure,(C) with or without additives, contain(D) as an additive, one or more alkaline earth metal silicates and/or alkaline earth metal glycerophosphates, advantageously in an amount of from 0.002 to 2.0% by weight, based on the weight of component (A),for improving the heat stability, reducing the tendency to discoloration and minimizing the free formaldehyde content.To prepare the novel polyoxymethylene molding materials, the components are advantageously melted in an extruder at from 150.degree. to 260.degree. C.The polyoxymethylene molding materials are useful for the production of films or, preferably, moldings, which are used, for example, in the automotive, electrical appliances and electronics industries.Type: GrantFiled: February 4, 1988Date of Patent: June 6, 1989Assignee: BASF AktiengesellschaftInventors: Manfred Walter, Wilhelm Schuette, Heiner Goerrissen
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Patent number: 4831073Abstract: A polyacetal resin composition contains 0.1-30% by weight of one or two or more members selected from among carbonaceous materials including carbon black, carbon fiber and graphite and 0.0005-2% by weight of one or two or more members selected from among alkali metal compounds and alkaline earth metal compounds in proportion to the total composition.Type: GrantFiled: May 15, 1987Date of Patent: May 16, 1989Assignee: Polyplastics Co., Ltd.Inventors: Susumu Okushiro, Eitaro Ikegami, Seiichi Higashiyama, Hiroyuki Miyaji
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Patent number: 4820753Abstract: A sonic window suitable for use in sonar applications wherein an elastomer such as natural or synthetic natural rubbers, a low air entrapping fiber or fibril used for reinforcement, fillers, and thermosetting resins are formed into desired window configuration. The low air entrapment associated with the fiber or fibrils produces a remarkably sonicly transparent window.Type: GrantFiled: March 15, 1988Date of Patent: April 11, 1989Assignee: The B. F. Goodrich CompanyInventors: Samuel J. Caprette, Jr., Wilson N. Smith, Jr.
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Patent number: 4814039Abstract: Resin shock, the unwanted viscosity increase caused by the addition of certain reactive resins to boron containing alkaline starch-based corrugated board adhesives, can be reduced by the presence of compounds containing hydroxyl groups.Type: GrantFiled: October 2, 1987Date of Patent: March 21, 1989Assignee: H. B. Fuller CompanyInventor: Stephen M. Willging
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Patent number: 4801626Abstract: Mechanical properties, especially tensile and flexural properties and impact strength, of glass fiber reinforced oxymethylene polymer molding compositions can be enhanced by incorporating into the molding composition an effective amount of a prepolymeric amino resin, whereby the glass fiber reinforcing agent and the oxymethylene polymer are coupled. The amino resin can be a condensation product of formaldehyde and melamine, urea, guanidine, guanamine or a substituted guanamine. An acid catalyst is preferably employed to promote the cross-linking of the prepolymeric amino resin.Type: GrantFiled: September 16, 1986Date of Patent: January 31, 1989Assignee: Celanese CorporationInventors: Andrew B. Auerbach, Derrick B. McKie
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Patent number: 4786659Abstract: A low warp, filled polyoxymethylene composition comprises a bimodal distribution of glass beads.Type: GrantFiled: December 19, 1986Date of Patent: November 22, 1988Assignee: Hoechst Celanese CorporationInventors: Derrick B. McKie, Andris Olukalns
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Patent number: 4780498Abstract: Molding materials of(A) one or more polyoxymethylene homopolymers and/or copolymers and(B) one or more thermoplastic polyurethane elastomers,(C) with or without additives, contain, as an additive,(D) one or more alkaline earth metal silicates, advantageously in an amount of from 0.005 to 2% by weight, based on the weight of the components (A) and (B), for improving the heat stability, reducing the tendency to discoloration and minimizing the free formaldehyde content.To prepare the molding materials, the components (A), (B), (D) and, if required (C) are advantageously melted together in an extruder at from 150.degree. to 260.degree. C.The molding materials are useful for the production of films or moldings, which are used, for example, in the automotive, electrical appliances and electronics industries.Type: GrantFiled: July 24, 1987Date of Patent: October 25, 1988Assignee: BASF AktiengesellschaftInventors: Heiner Goerrissen, Dietrich Saenger, Wilhelm Schuette, Manfred Walter
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Patent number: 4759802Abstract: A hydraulic cement composition is effectively dispersed with the use as a dispersion agent of a reaction product obtained by oxidizing and polymerizing a condensate of formaldehyde with a naphthalenesulfonic acid salt and/or an alkylnaphthalenesulfonic acid salt to produce a constitutional unit which is derived by elimination of a methylene group, hydroxyzation and condensation polmerization, or oxidation and ring-opening of the naphthalene ring.Type: GrantFiled: October 31, 1986Date of Patent: July 26, 1988Assignee: Kao CorporationInventors: Yasusuke Ochi, Tatsuya Mizunuma, Kimio Kurosaka, Tatsuo Izumi, Shuichi Fujita
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Patent number: 4727106Abstract: An oxymethylene polymer composition which exhibits improved thermal stability is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a transition metal salt.Type: GrantFiled: November 18, 1986Date of Patent: February 23, 1988Assignee: Celanese Engineering Resins, Inc.Inventors: James L. Paul, Andrew B. Auerbach
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Patent number: 4677187Abstract: Furfuryl alcohol-formaldehyde resins which can be prepared by using a water soluble multivalent metal salt as the catalyst, thereby eliminating the use of an acid catalyst and the necessary attention it requires.Type: GrantFiled: May 23, 1986Date of Patent: June 30, 1987Assignee: Acme Resin CorporationInventors: David R. Armbruster, Merlyn Pasion
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Patent number: 4652594Abstract: Mechanical properties, especially tensile and flexural properties and impact strength, of glass fiber reinforced oxymethylene polymer molding compositions can be enhanced by incorporating into the molding compositions an effective amount of a prepolymeric amino resin, whereby the glass fiber reinforcing agent and the oxymethylene polymer are coupled. The amino resin can be a condensation product of formaldehyde and melamine, urea, guanidine, guanamine or a substituted guanamine. An acid catalyst is preferably employed to promote the cross-linking of the prepolymeric amino resin.Type: GrantFiled: October 16, 1985Date of Patent: March 24, 1987Assignee: Celanese CorporationInventors: Andrew B. Auerbach, Derrick B. McKie
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Patent number: 4649172Abstract: A polyacetal resin composition comprises a polyacetal and a potassium titanate fiber, being suitable for moulding a slidable part or article.Type: GrantFiled: April 19, 1985Date of Patent: March 10, 1987Assignee: Polyplastics Co., Ltd.Inventors: Yukimasa Yanase, Tsuneyoshi Okada
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Patent number: 4645785Abstract: Thermoplastic polyoxymethylene molding materials having high abrasion resistance contain(A) from 4 to 94.7 parts by weight of polyoxymethylene,(B) from 5 to 50 parts by weight of wollastonite,(C) from 0.2 to 5 parts by weight of N-hydroxymethylmelamines in which some or all of the hydroxymethyl groups are etherified with alkanols,(D) from 0.1 to 5 parts by weight of a silicone oil having a degree of polycondensation n of from 10 to 5,000 and/or(E) from 0.1 to 10 parts by weight of polyethylene and/or copolymers of ethylene and .alpha.-olefins having a molecular weight of from 100,000 to 1,000,000,the number of parts by weight of components A, B, C, D and E summing to 100, with or without(F) effective amounts of additives.Type: GrantFiled: November 5, 1985Date of Patent: February 24, 1987Assignee: BASF AktiengesellschaftInventors: Gerhard Heinz, Wilhelm Schuette, Georg N. Simon
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Patent number: 4636537Abstract: Polymeric cyclopentadiene derivatives, method for preparing polymeric cyclopentadiene derivatives, and use of polymeric cyclopentadiene derivatives in curable binder compositions.Type: GrantFiled: April 12, 1985Date of Patent: January 13, 1987Assignee: Ashland Oil, Inc.Inventors: Bruce A. Gruber, Heimo J. Langer, William R. Dunnayant
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Patent number: 4624812Abstract: A ceramic composition suitable for injection molding comprises a ceramic powder and a binding agent in an amount effective to permit successful injection molding. The binding agent is comprised of a defined polyacetal which, upon heating, volatilizes evenly and completely thereby resulting in a sintered ceramic article without any latent defects or weak spots.Type: GrantFiled: July 8, 1985Date of Patent: November 25, 1986Assignee: Celanese CorporationInventors: Gerry Farrow, Anthony B. Conciatori
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Patent number: 4622381Abstract: A fiber composed of a polyester having at least a part of terminals blocked with the residue of at least one specific metal sulfonate compound, where the amount of the blocked terminals is 1.3 to 4.0 mol % based on the dicarboxylic acid component of the polyester and the alkali dissolution speed constant is 3.3.times.10.sup.-9 to 6.5.times.10.sup.-9 cm/sec. This polyester has a good dyeability with a cationic dye and is excellent in the heat resistance and alkali resistance. The polyester fiber can be spun at a high speed or super high speed and can be false-twisted at a high temperature.Type: GrantFiled: October 2, 1985Date of Patent: November 11, 1986Assignee: Teijin LimitedInventors: Togi Suzuki, Tadashi Konishi, Kohichi Iohara, Shinji Ohwaki, Setsuo Yamada
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Patent number: 4596847Abstract: A polyacetal resin composition is provided which has improved antistatic, heat stability and mechanical properties and contains a polyacetal homopolymer or copolymer, carbon black and a nonionic surfactant which is a polypropylene glycol/polyethylene glycol ether copolymer.Type: GrantFiled: November 12, 1985Date of Patent: June 24, 1986Assignee: Polyplastics Co., Ltd.Inventors: Takuzo Kasuga, Yukio Ikenaga, Masami Yamawaki, Keizo Tanimura
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Patent number: 4587033Abstract: Solid phase compositions having improved storage stability comprising polymeric acetal carboxylates in intimate admixture with a basic additive and a method of producing such admixtures are disclosed. The compositions are useful as builders in detergent formulations.Type: GrantFiled: July 2, 1984Date of Patent: May 6, 1986Assignee: Monsanto CompanyInventors: David R. Dyroff, Yueting Chou