Mixed With A Boron- Or Polyvalent Metal-containing Chemical Treating Agent Patents (Class 525/506)
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Patent number: 4396754Abstract: The present invention provides a curable composition comprising (1) at least one epoxy compound containing at least one vicinal-epoxy group and (2) at least one catalyst selected from lithium or Group II metal salts of a non-nucleophilic acid. The present invention further provides an active epoxy curing catalyst composition.Type: GrantFiled: December 14, 1981Date of Patent: August 2, 1983Assignee: Shell Oil CompanyInventor: Thomas F. Brownscombe
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Patent number: 4391924Abstract: High temperature-resistant thermobarriers have a filler therein. The filler can be an opaque thermobarrier material, a fabric or cloth such that a laminated thermobarrier is formed, or preformed bubbles of glass, ceramic or plastic such that a syntactic foam thermobarrier is formed. The thermobarrier contains a boroxine compound therein as well as epoxy resins and various phosphorus compounds and/or aromatic alcohols. Generally, the syntactic foam thermobarriers give the best heat protection.Type: GrantFiled: October 22, 1982Date of Patent: July 5, 1983Assignee: Goodyear Aerospace CorporationInventor: John R. Uram, Jr.
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Patent number: 4382130Abstract: Certain aryloxyphosphonium salts have been found to be effective as curing agents for various cationically polymerizable organic materials, such as epoxy resins, when incorporated into such materials. The materials are found to be moisture curable coating compositions.Type: GrantFiled: October 14, 1981Date of Patent: May 3, 1983Assignee: General Electric CompanyInventors: Robert H. Ellison, Martin A. Byrne
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Patent number: 4379897Abstract: Disclosed is a color-developer for pressure-sensitive recording sheets, comprising a co-condensate of a reaction intermediate of a p-substituted phenol and a trifunctional or higher phenol, or a polyvalent metal salt of said co-condensate, said reaction intermediate being obtained by the reaction of said p-substituted phenol under alkaline conditions with formaldehyde or a substance capable of generating formaldehyde.Type: GrantFiled: March 17, 1981Date of Patent: April 12, 1983Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Makoto Asano, Yoshimitu Tanabe, Hisamichi Murakami
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Patent number: 4368314Abstract: A curable composition comprising:(A) at least one spiro-orthoester compound having at least one spiro-orthoester group represented by the formula: [I] ##STR1## wherein n is an integer of 3-5, (B) at least one curing agent selected from the group consisting of organic polybasic acids and their anhydrides,(C) optionally, an epoxy compound having at least one epoxy group, and(D) optionally a cationic polymerization catalyst when the composition comprises ingredient (C).Said composition is small in shrinkage on curing, and provides a cured product of high dimensional accuracy when used as a molding material.Type: GrantFiled: August 24, 1981Date of Patent: January 11, 1983Assignee: Toagoesi Chemical Industry Co., Ltd.Inventors: Takeshi Endo, Kiyokazu Mizutani, Takahisa Ogasawara
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Patent number: 4343928Abstract: A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. Additionally, the transparency may include phosphite or phosphate compounds to improve heat resistance, with the phosphate compound in sufficient concentrations to delay gel times such that the phenyl substituted alkyl alcohol may be eliminated from the composition. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy transparency layer is bound to the other transparent layers, in a variety of configurations, using an interlayer of mercaptan terminated resins. These resins greatly improve resistance to moisture permeability in and about the edges of the entire transparency.Type: GrantFiled: February 5, 1981Date of Patent: August 10, 1982Assignee: Goodyear Aerospace CorporationInventor: John R. Uram, Jr.
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Patent number: 4323667Abstract: Concentrated boric anhydride solutions containing more than 5% of boric anhydride in an organic solvent selected from mono or polyalcohols, trialkylborate and/or dialkylacetal when the solvent also contains an acid selected from sulfuric acid and/or aromatic acids. These solutions are used as hardeners of formo-phenolic resols, more particularly for the manufacture of laminates comprising glass fibers and formo-phenolic resols.Type: GrantFiled: January 22, 1981Date of Patent: April 6, 1982Assignee: Societe Chimique des Charbonnages SAInventors: Nicolas Meyer, Raymond Foulon
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Patent number: 4281069Abstract: A phenolic foam produced without the use of a conventional chlorofluorocarbon or hydrocarbon blowing agent is disclosed. The phenolic foam is produced as the reaction product of a mixture comprising a phenolic resole, a surfactant and stannous chloride. The phenolic foams can be formulated to contain a substantial proportion of closed cells.Type: GrantFiled: May 14, 1980Date of Patent: July 28, 1981Assignee: Armstrong World Industries, Inc.Inventor: Thomas G. Harris
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Patent number: 4266045Abstract: An etherified phenolic chelate resin prepared by stabilizing and protecting the chelate groups of a phenolic chelate resin and then converting some or all of the phenolic hydroxyl groups into ether groups; a process for the production of the etherified phenolic chelate resin; and a method for separating a heavy metal ion from an aqueous solution having a pH of at least 7 by using this etherified phenolic chelate resin.Type: GrantFiled: September 11, 1978Date of Patent: May 5, 1981Assignee: Unitika Ltd.Inventors: Hiroyuki Uejima, Masahide Hirai, Tsutomu Sakaida
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Patent number: 4232134Abstract: Boron containing phenol/formaldehyde resins can be isolated from their reaction media by evaporating said resins in a spiral flow evaporator which has a ratio between throughput and tube cross section from 0.1 to 1.5 and a ratio between throughput and evaporation surface from 100 to 400.Type: GrantFiled: November 6, 1979Date of Patent: November 4, 1980Assignee: Bayer AktiengesellschaftInventors: Manfred Schmidt, Eberhard Bandtel, Walter Traudisch, Georg Spott, Dieter Freitag
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Process for the production of white melamine-phenol-aldehyde resins which are resistant to yellowing
Patent number: 4229557Abstract: Resins which are substantially white and resistant to yellowing are obtained by the addition of ammonium or alkali phosphates or ammonium or alkali borates during the production or processing of melamine-phenol-aldehyde resins in an aqueous basic medium, and by subsequently obtaining the resin by dehydration at a temperature of at least 70.degree. C.Type: GrantFiled: August 27, 1979Date of Patent: October 21, 1980Assignee: Ciba-Geigy CorporationInventors: Dieter Feinauer, Ludwig Streinz -
Patent number: 4226962Abstract: A novel metal modified novolak resin is prepared. The metal modified novolak resin is an electron acceptor and is further characterized by its compatability with the surface properties of a paper substrate. The metal modified novolak resin comprises a reaction product of a novolak resin and a metal salt. The novolak resin is a reaction product of a mixture containing a para-substituted phenol selected from the group consisting of paraalkylphenols having alkyl groups of about 1 to about 12 carbon atoms, para-phenylphenol and mixtures thereof, salicylic acid and formaldehyde.The novel metal modified novolak resin is prepared by heating a mixture containing one or more para-substituted phenols, salicylic acid, formaldehyde and an acid catalyst for a period of time sufficient to substantially completely react the phenols, salicylic acid and formaldehyde to form a melted novolak resin. The melted novolak resin is mixed with a zinc salt in an inert atmosphere to form the metal modified novolak resin.Type: GrantFiled: December 11, 1978Date of Patent: October 7, 1980Assignee: The Mead CorporationInventor: John J. Stolfo
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Patent number: 4216299Abstract: A color developer for pressure-sensitive copying paper is prepared by mixing a polyvalent metal salt of a para-substituted difunctional phenol-aldehyde condensate and a tri- or higher-functional phenol-aldehyde condensate and/or a polyvalent metal modified tri- or higher-functional phenol-aldehyde condensate.Type: GrantFiled: November 1, 1977Date of Patent: August 5, 1980Assignee: Sumitomo Durez Company, Ltd.Inventors: Toyoji Kikuga, Koji Hirai
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Patent number: 4216300Abstract: A color developer for pressure-sensitive copying papers is prepared by mixing a para-substituted difunctional phenol-aldehyde condensate and tri- or higher-functional phenol-aldehyde condensate. The tri- or higher-functional phenol-aldehyde condensate can be modified by a polyvalent metal.Type: GrantFiled: November 1, 1977Date of Patent: August 5, 1980Assignee: Sumitomo Durez Company, Ltd.Inventors: Toyoji Kikuga, Koji Hirai
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Patent number: 4202959Abstract: The present invention provides fibres of urea formaldehyde, melamine formaldehyde, phenol formaldehyde, and mixtures thereof, modified by inorganic oxyacid radicals derived from inorganic oxyacids of sulphur, salts of such inorganic oxyacids, phosphate radicals, phosphite radicals, borate radicals and mixtures thereof.Type: GrantFiled: December 5, 1977Date of Patent: May 13, 1980Assignee: Imperial Chemical Industries LimitedInventors: Richard G. C. Henbest, Kenneth McGregor
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Patent number: 4200706Abstract: Phenol-formaldehyde resoles and novalacs are cured at temperatures of from about 0.degree. C. to about 150.degree. C. and at pressures ranging from about atmospheric pressure to about 5 atmospheres to produce highly cross-linked resins when divinylbenzene is used as a cross-linking agent together with a minor amount of an acidic catalyst.Type: GrantFiled: May 30, 1978Date of Patent: April 29, 1980Assignee: Conoco, Inc.Inventor: Charles M. Starks
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Patent number: 4193907Abstract: Flameproof reinforced and/or filled polyamide moulding compositions containing a combination of red phosphorus and phenol/aldehyde resins as flameproofing agent.Type: GrantFiled: July 25, 1978Date of Patent: March 18, 1980Assignee: Bayer AktiengesellschaftInventors: Peter Tacke, Dieter Neuray, Dietrich Michael
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Patent number: 4188271Abstract: A composition is described which provides an improvement in the electrodeposition of zinc from aqueous alkaline plating baths and particularly from alkaline plating baths containing little or no cyanide. The new composition comprises the reaction product of one or more piperazines, at least one additional nitrogen-containing compound selected from the group consisting of ammonia or aliphatic acyclic compounds containing at least one primary amine group, formaldehyde, and an epihalohydrin or a glycerol halohydrin or mixtures thereof. Aqueous, alkaline zinc plating baths containing the additive compositions of the invention deposit a bright zinc coating over a wide range of current densities.Type: GrantFiled: January 23, 1976Date of Patent: February 12, 1980Assignee: Rohco, Inc.Inventors: William E. Eckles, Wilfred J. Ferguson, William J. Willis
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Patent number: 4182697Abstract: The invention relates to a process for the preparation of boron-containing phenol/formaldehyde resins be reacting diphenylol alkane novolaks with unsaturated fatty acids or fatty acid esters and boron compounds, characterized in that diphenylol alkane novolaks having a molecular weight of from 400 to 1600 are reacted with from 15 to 35 parts by weight of an unsaturated fatty acid or its esters, accompanied by the azeotropic removal of water, and then with from 20 to 100 parts by weight of a boric acid trialkyl ester containing from 1 to 4 carbon atoms per alkyl group or with 14 to 72 parts by weight of a boric acid alkyl ester anhydride of the general formula (RO).sub.2 B--O--B--(OR).sub.2 with 1 to 4 carbon atoms per alkyl group R or with from 10 to 50 parts by weight, preferably from 15 to 20 parts by weight of boron trioxide or with from 18 to 90 parts by weight, preferably from 25 to 36 parts by weight of boric acid in the presence of a C.sub.1 -C.sub.4 alcohol.Type: GrantFiled: February 2, 1979Date of Patent: January 8, 1980Assignee: Bayer AktiengesellschaftInventors: Manfred Schmidt, Dieter Freitag, Hermann Fries, Erich Esch
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Patent number: 4176105Abstract: A modified phenol formaldehyde condensate is reacted with boric acid and cured in the presence of a polyfunctional nitrogeneous compound to provide a binder for mineral wool fibers which is particularly suited for thermal insulation products intended for high temperature service.Type: GrantFiled: September 6, 1977Date of Patent: November 27, 1979Assignee: Certain-Teed CorporationInventor: Patrick M. Miedaner
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Patent number: 4165102Abstract: A method of making zinc-modified phenol-aldehyde novolak resins for use as a color-developing agent in pressure-sensitive record sheet material involving the addition of certain dry particulate zinc compounds and an ammonium carboxylate to the melted resin. Specifically, a phenol-formaldehyde resin is reacted with zinc oxide or zinc carbonate and ammonium benzoate.Type: GrantFiled: May 31, 1978Date of Patent: August 21, 1979Assignee: NCR CorporationInventor: Jerome R. Bodmer
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Method of preparing zinc-modified phenol-aldehyde novolak resins and use as a color-developing agent
Patent number: 4165103Abstract: A method of making zinc-modified phenol-aldehyde novolak resins for use as a color-developing agent in pressure-sensitive record sheet material involving the addition of certain dry particulate zinc compounds and an ammonium carboxylate to the melted resin. Specifically, a phenol-formaldehyde resin is reacted with zinc oxide or zinc carbonate and ammonium formate.Type: GrantFiled: May 31, 1978Date of Patent: August 21, 1979Assignee: NCR CorporationInventor: Jerome R. Bodmer