Patents Examined by Richard Lee Jones
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Patent number: 5532330Abstract: A heat-curable, formaldehyde-free binding agent comprising a polyflavonoid type tannin and as a curing catalyst, a compound having a weak acid reaction curable at relatively high temperatures and compatible with cellulose containing materials such as wood chips for the production of particle boards.Type: GrantFiled: October 4, 1994Date of Patent: July 2, 1996Assignee: Rutgerswerke AktiengesellschaftInventors: Antonio Pizzi, Willi Roll, Berthold Dombo
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Patent number: 5366837Abstract: An image receiving sheet of the present invention for receiving a desired image thereon includes a support layer and an absorbing layer containing heat-meltable or thermoplastic particles. A desired image can be formed in the absorbing layer of the image receiving sheet. Through heating the image receiving sheet formed with the desired image, the heat-meltable or thermoplastic particles are thermally melted or softened to attain a glossy and transparent surface formed with the desired image. As a result, an image bearing product coated with a glossy and transparent surface formed with the desired image is obtained. Through thermally pressing the image receiving sheet formed with the visible image toward an article of arbitrary type, on the other hand, the heat-meltable or thermoplastic particles are thermally melted or softened to be adhered to a surface of the article, so that the desired image is transferred onto the surface of the article.Type: GrantFiled: July 10, 1992Date of Patent: November 22, 1994Assignee: Brother Kogyo Kabushiki KaishaInventor: Jun Sakai
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Patent number: 5362800Abstract: Unsaturated polyester resin compositions (UPRs) containing monomeric compounds of the formula (I): ##STR1## wherein R, R.sub.1 and R.sub.2 are H or a methyl group, for use as accelerators and crosslinking agents. A process for preparing the UPRs.Type: GrantFiled: April 1, 1993Date of Patent: November 8, 1994Assignee: Alusuisse Italia S.p.A.Inventors: Giuseppe Antonio Caramaschi, Sergio Sanchioni, Marco Bocci, Maurizio Leonardi
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Patent number: 5359024Abstract: The invention relates to a process for the preparation of a phenol-formaldehyde resin by causing phenol and formaldehyde to condense under the influence of a basic catalyst, the catalyst being an aqueous solution containing alkali metal ions, carbonate ions, ions of carboxylic acids and one or more ions chosen from the group comprising transition metal ions and borates.Type: GrantFiled: August 17, 1993Date of Patent: October 25, 1994Assignee: DSM N.V.Inventors: Renier H. M. Kierkels, van Kempen Carolien H. M., Henricus A. C. Baur
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Patent number: 5357039Abstract: Poly-N-acylalkyleneimines corresponding to the following formula ##STR1## are used as an oxidatively crosslinking constituent in paints. In formula (I), R--CO represents the acyl radical of a mono- or polyunsaturated, aliphatic C.sub.16-22 carboxylic acid or a mixture of such radicals, R'--CO represents the acyl radical of a C.sub.1-22 carboxylic acid or a mixture of such radicals and x and y represent the percentages by weight of the particular polymer units, x assuming values of 20 to 100% and preferably 20 to 95% and y assuming values of 80 to 0% and preferably 80 to 5%. The indices m and n independently of one another may assume the value 2 or 3.Type: GrantFiled: April 26, 1993Date of Patent: October 18, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Brigitte Hase, Ulrich Eicken, Herbert Fischer, Horst-Juergen Krause, Wolfgang Gress, Norbert Stork
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Patent number: 5350781Abstract: A process for the production of polyurethane foams by reacting a reaction mixture consisting essentially ofa) a polyisocyanate component, withb) a polyol component free from salt groups, in the presence ofc) at least one blowing agent,d) salts of ester-functional .alpha.,.beta.-unsaturated carboxylic acids and, optionally,e) other auxiliaries and additives typically used in polyurethane chemistry.Component d) the salts of ester-functional .alpha.,.beta.-unsaturated carboxylic acids are the reaction products of (i) monohydric or polyhydric alcohols, with (ii) unsaturated dicarboxylic acids or unsaturated dicarboxylic anhydrides, which contain on a statistical average at least one alkali metal carboxylate group and at most 0.5 alcoholic hydroxyl groups per molecule. The present invention also relates to the composites produced by back-foaming of a plastic film as a surface layer wherein the foam is produced by the process described above.Type: GrantFiled: September 20, 1993Date of Patent: September 27, 1994Assignee: Bayer AktiengesellschaftInventors: Ulrich Liman, Hartwig Grammes, Dirk Wegener, Manuel Kaiser
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Patent number: 5340903Abstract: The invention concerns a phenolic resin.The resin is a liquid, contains phenol-formaldehyde, formaldehyde-urea and phenol-formaldehyde-amine condensates, and has a free formaldehyde content of less than 3%, this proportion being expressed as a percentage of the total fluid weight, and a dilutability rate in water which equals or surpasses 1,000%. Furthermore, the resin is stable when heated. Application to less-polluting sizing compositions for mineral fibers; and use of the fibers thus sized for the manufacture of insulating products and soilless cultivation substrates.Type: GrantFiled: August 27, 1993Date of Patent: August 23, 1994Assignee: Isover Saint-GobainInventors: M. Serge Tetart, M. David Segal
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Patent number: 5319066Abstract: A method is provided for making aromatic polycarbonates by the melt condensation of a diaryl carbonate and an aromatic bis hydroxy compound in the presence of a condensation catalyst, such as hexahydro-2H-pyrimido[1,2-a]pyrimidine or an alkyl substituted derivative.Type: GrantFiled: May 27, 1993Date of Patent: June 7, 1994Assignee: General Electric CompanyInventor: Joseph A. King, Jr.
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Patent number: 5310853Abstract: The reaction between epoxy compounds and active hydrogen-containing compounds or anhydrides is catalyzed with a phosphine or phosphonium compound containing at least three C.sub.1 to C.sub.4 alkyl phenyl groups attached to the phosphorous atom per molecule.Type: GrantFiled: January 21, 1993Date of Patent: May 10, 1994Assignee: The Dow Chemical CompanyInventors: Ha Q. Pham, Michael B. Cavitt, Pamela A. Hardcastle
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Patent number: 5294648Abstract: A binder composition for producing articles of bonded particulate material such as foundry molds or core comprises an alkaline aqueous solution of a resol phenol-aldehyde resin, an oxyanion which can form a stable complex with the resin, and an ethylene glycol monoalkyl ether. The binder composition has an alkali to phenol molar ratio of from 1.5:1 to 2.5:1 and the amount of alkali present in the solution is sufficient to substantially prevent stable complex formation between the resin ad the oxyanion. Bonded articles are produced by passing carbon dioxide gas through articles formed from a mixture of particulate material and the binder composition so as to produce stable complex formation and curing of the resin.Type: GrantFiled: January 4, 1993Date of Patent: March 15, 1994Assignee: Foseco International LimitedInventors: Garry Smith, Martin Bradley
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Patent number: 5278283Abstract: Disclosed is a process for preparing a polyarylene sulfide, which involves polycondensing a dihalogenated aromatic compound with a source of sulfur in an organic polar solvent while dehydrating at pressure under which polycondensation is performed. This process avoids dehydration operation of the raw materials, particularly the source of sulfur, prior to polycondensation, thereby resulting in the production of the polyarylene sulfide having a high molecular weight.Type: GrantFiled: January 13, 1992Date of Patent: January 11, 1994Assignee: Idemitsu Petrochemical Company, LimitedInventors: Akira Miyoshi, Minoru Senga
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Patent number: 5278275Abstract: A polyurethane resin composition containing a polyurethane resin composed of a high molecular weight polyol having a molecular weight of not less than 500, an organic polyisocyanate and optionally a compound having at least 2 active hydrogen-containing groups is disclosed. Not less than 30% by weight of the high molecular weight polyol is a polyester polyol, and the polyester polyol contains at least one tricyclic molecular skeleton in the molecular chain thereof in an amount of not less than 20 mole % based on total acid or glycol components.Type: GrantFiled: June 28, 1991Date of Patent: January 11, 1994Assignee: Toyo Boseki Kabushiki KaishaInventors: Takeshi Yatsuka, Haruo Asai, Haruhiko Narusawa, Yasunobu Sugyo, Hiroshi Fujimoto
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Patent number: 5276126Abstract: A method of planarizing topographical features on a substrate for subsequent coating of a radiation sensitive composition thereon comprising:(1) applying thereover a coating of a planarizing coating layer comprising a planarization layer of novolak resin made by the condensation reaction of an aldehyde source with a phenolic monomeric source comprising at least 25 mole percent of ortho-secondary butyl phenol and a suitable solvent; and(2) heating said coated substrate to remove essentially all of said solvent therefrom and cause said coating to reflow, thereby planarizing the topographical features.Type: GrantFiled: February 8, 1993Date of Patent: January 4, 1994Assignee: OCG Microelectronic Materials, Inc.Inventor: Robert F. Rogler
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Patent number: 5272227Abstract: Adducts obtainable by reacting (a) an epoxy resin having a OH value of 0.02-1.5 equivalents/kg and (b) a di- or polyisocyanate, said reaction being carried out with exclusion of moisture and essentially without a catalyst, can subsequently be converted by reaction with an inhibitor (c), preferably an acrylate, into storage-stable adducts.The adducts can be cured in the presence of a latent hardener conventionally used for EP/IC resin systems in a weakly exothermic reaction to give crosslinked products which have excellent properties.Type: GrantFiled: August 20, 1991Date of Patent: December 21, 1993Assignee: Ciba-Geigy CorporationInventor: Kurt Munk
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Patent number: 5272238Abstract: The present invention provides a preparation process of a polymer which is characterized by reacting a specified metallocene which metal is a transition element of the group IV to group VIII in the periodic table, with an organic alkali metal compound and successively reacting with the compound represented by the formula Y--(R.sup.11).sub.m --X wherein R.sup.11 is a vinylene, phenylene, thienylene, and the like, X and Y are a hydrogen atom or halogen atom, and m is an integer of one or more, to obtain the polymer represented by the following formula: ##STR1## wherein n is an integer of 2 or more; further provides an organo-ferromagnetic material obtained by oxidizing said polymer, and a novel conjugated polymer containing ferrocene units.Type: GrantFiled: October 15, 1991Date of Patent: December 21, 1993Assignee: Nippon Oil Co., Ltd.Inventors: Francis Garnier, Abderrahim Yassar
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Patent number: 5266682Abstract: The invention relates to mixtures of nitrogen-containing surface-active agents which are obtained by esterification of oxyalkylates based on modified or nonmodified naturally occurring resin acids or resin amines or resin alcohols derived therefrom with dicarboxylic acids or anhydrides thereof and subsequent reaction with alkylenediamines or alkylenepolyamines. These nitrogen-containing surface-active agents are suitable as coupling auxiliaries, emulsifiers, dispersing agents, preparation agents for solids dispersions, corrosion protection and metal-working agents and as wetting agents and dyeing auxiliaries.Type: GrantFiled: May 14, 1992Date of Patent: November 30, 1993Assignee: Hoechst AktiengesellschaftInventors: Heinz Uhrig, Siegfried Schwerin, Dieter Schnaitmann, Hans-Joachim Metz
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Patent number: 5260406Abstract: A stain-resist agent for polyamide fibers, its preparation and use are disclosed. The stain-resist agent is the condensation product of bis-hydroxyphenylsulfone with 0.5 to 1.0 mole of formaldehyde, per mole of bis-hydroxyphenylsulfone, and 0.15 to 1.5 moles of mercaptoacetic acid or mercaptosuccinic acid per mole of bis-hydroxyphenylsulfone and ammonium hydroxide or an alkali metal hydroxide in an amount sufficient to neutralize the mercapto acid plus an excess of about 0.2 to 0.6 mole of hydroxide per mole of bis-hydroxyphenylsulfone. Generally the reaction is carried out at 110.degree. to 180.degree. C. for 1 to 48 hours, with 130.degree. to 160.degree. C. for 3 to 24 hours being preferred. The product is applied to the polyamide fibers from an aqueous bath to provide a coating of 0.5 to 5.0 wt % stain-resist agent. The stain-resist is applied in the presence of a magnesium salt.Type: GrantFiled: April 14, 1992Date of Patent: November 9, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Engelbert Pechhold
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Patent number: 5256740Abstract: Polymer with a number average molecular weight of 400 to 20,000 having amino-substituted groups in its molecule and resulting from the reaction of at least one compound having a secondary amine function with 1 to 60 carbon atoms on an unsaturated polyester resulting from the condensation of an unsaturated, aliphatic dicarboxylic compound having at least one alpha ethylene unsaturation of one of the carboxylic groups on at least one epoxidized compound having 2 to 62 carbon atoms chosen from among epoxyalkenes, ethers, epoxyalcohol esters and epoxyacid esters. Middle distillate composition having a distillation range of 150.degree. to 450.degree. C. and incorporating a minor proportion, preferably 0.001 to 2% by weight, of at least one of the aforementioned polymers.Type: GrantFiled: April 30, 1992Date of Patent: October 26, 1993Assignee: IFP et Elf FranceInventors: Jacques Denis, Alain Forestiere, Beatrice Bonardi, Bernard Damin
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Patent number: 5248707Abstract: The hardening of a composition containing a phenolic resin solution and a magnesia aggregate is effected by mixing into such composition at a pH of at least 4.5: a compound which provides an acetate, adipate, 4-aminobenzenesulfonate, 1,2,4-benzenetricarboxylate, formate, glycolate, lactate, nitrate, benzenesulfonate, naphthalenesulfonate, methanesulfonate, phenolsulfonate, succinate, sulfamate, or toluenesulfonate anion to the composition; or an acetylacetone, 2-nitrophenol, 4-nitrophenol, salicylaldehyde compound; or a mixture of said compounds.Type: GrantFiled: January 28, 1993Date of Patent: September 28, 1993Assignee: Borden, Inc.Inventor: Arthur H. Gerber
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Patent number: RE34486Abstract: Inorganic-organic alloy polymer adduct .Iadd.or organic blends polymer .Iaddend.compositions for waste water treatment, having the formula:A.B.sup.+.C.D.sup.+wherein A is from 0% to 98% by weight of the total alloy composition, and is selected from the group comprising: polyhydroxyaluminumchloride, hydroxyaluminumchloride, polyhydroxyaluminumagnesiumchloride, .[.polyhydroxyaluminumagnesium sulfate,.]. polyhydroxyaluminumagnesiumsulfate, hydroxyaluminumsulfate, polyhydroxyaluminumzincoxidechloride, polyhydroxyaluminumchlorosulfate, polyhydroxymagnesiumchlorosulfate, polyaluminumferricchloride, polyaluminumferrouschloride, polyaluminumcholridesulfate, polyhydroxyaluminumchloridesilicate, .[.and.]. polyhydroxyaluminumsodiumsulfophosphate; .Iadd.and aluminum salts; where A vary from 0% to 100%B.sup.+ is from .[.2% to 98%.]. .Iadd.0 to 100% .Iaddend.Type: GrantFiled: October 7, 1991Date of Patent: December 21, 1993Inventor: John J. Waldmann