Phenoplast Patents (Class 428/531)
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Patent number: 4354697Abstract: A resin prepared by acid-catalytic condensation of p-phenylphenol with formaldehyde in the presence of an alcohol having a boiling point of 70.degree. C. or more is improved in solubility in various solvents, especially in ethyl acetate, polyethylene glycol and oil, and is useful as an acidic substance in No Carbon copying paper, which gives an intense color with higher speed, especially in the form of spot ink in flexographic printing or gravure printing.Type: GrantFiled: June 12, 1980Date of Patent: October 19, 1982Assignee: Mitsubishi Paper Mills, Ltd.Inventor: Mitsuru Fuchigami
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Patent number: 4345002Abstract: An intumescent composition containing a cyclic nitrogen compound, a hydroxy-containing organo-phosphorus compound, an organo-phosphorus acid, and water, wherein:(a) said cyclic nitrogen compound is: ##STR1## wherein a, b, and c, are integers selected from the group consisting of 1 and 2, a plus b plus c equal about 3 to 6, and wherein and X, X', and X" are hydrogen or --CH.sub.3 ;(b) said hydroxy-containing organo-phosphorus compound is selected from the group consisting of: ##STR2## and mixtures thereof wherein R.sup.1, R.sup.2 and R.sup.3 are lower alkyl or haloalkyl radicals and R.sup.4 and R.sup.5 are hydrogen, lower alkyl or haloalkyl radicals;(c) said acid is selected from the group consisting of: ##STR3## and mixtures thereof, wherein R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are hydrogen, lower alkyl, haloalkyl or hydroxyalkyl, R.sup.10 and R.sup.11 are lower alkyl, haloalkyl, hydroxy-polyalkyleneoxy, alkoxy, hydroxyalkoxy or haloalkoxy, ##STR4## wherein R.sup.Type: GrantFiled: September 17, 1979Date of Patent: August 17, 1982Assignee: Great Lakes Chemical CorporationInventors: Ray E. Smith, Jayendra G. Shukla, Richard R. Nicholson
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Patent number: 4337291Abstract: A bowling lane having a decorative laminate surface in which the lane approach surface and the lane surface proper has a finish which provides a 60 degree gloss below about 30 in the machine direction as measured according to NEMA Standard 8-19-1964.Type: GrantFiled: March 6, 1980Date of Patent: June 29, 1982Assignee: General Electric CompanyInventor: Peter B. Kelly
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Patent number: 4337290Abstract: An improvement in a bowling lane having a decorative laminate surface which improvement comprises incorporating into the core of the laminate a plurality of alternating layers of glass cloth impregnated with a thermosetting resin and crepe paper also impregnated with a thermosetting resin, the glass cloth and crepe paper being interlaminarily bonded to one another.Type: GrantFiled: November 16, 1979Date of Patent: June 29, 1982Assignee: General Electric CompanyInventors: Peter B. Kelly, Edward R. Heagle
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Patent number: 4333990Abstract: A heat-sensitive recording paper containing in its color-developing layer aluminum hydroxide as fillers and a colorless or pale-colored chromogenic dyestuff and a phenolic substance as chromogenic elements. This heat-sensitive recording paper incorporates high image density and very preferable recording aptitude with less abrasiveness and less residues accumulated even for long time recording.Type: GrantFiled: December 31, 1980Date of Patent: June 8, 1982Assignee: Jujo Patper Co., Ltd.Inventors: Noboru Yamato, Tosimi Satake
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Patent number: 4322470Abstract: A curable resin composition consisting essentially of an amidated polybutadiene and a phenolic resin, and a laminate containing the resin composition in cured form and having excellent electrical properties and cold punching workability.Type: GrantFiled: February 8, 1980Date of Patent: March 30, 1982Assignee: Nippon Oil Co., Ltd.Inventors: Hajime Hara, Shingo Orii, Yoshihiko Araki
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Patent number: 4314002Abstract: This invention relates to insulating laminates which consists with several sheets of reinforcements (1) inpregnated with curable resin and layers (2) of cured resin located between each reinforcement. Metal clad laminates is also disclosed which is consisting with reinforcement (1), layers (2) of cured resin and metal foil (5) to be placed on the laminates. Each reinforcements (1) are substantially isolated by the resin layers (2).Type: GrantFiled: January 29, 1980Date of Patent: February 2, 1982Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayuki Oizumi, Masana Goto, Minoru Ishiki, Shoji Uozumi
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Patent number: 4311757Abstract: The use of a fully-hydrolyzed polyvinyl alcohol modified melamine-formaldehyde resin coating containing finely divided metallic powder in a decorative laminate eliminates the necessity for thin metallic foils without thereby imparting any deleterious effects to the laminate itself.Type: GrantFiled: October 30, 1980Date of Patent: January 19, 1982Assignee: Formica CorporationInventors: Ram S. Raghava, Wilbur W. West
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Patent number: 4291148Abstract: Process for the preparation of a phenol resin modified with a liquid polybutadiene which comprises reacting a polybutadiene having a number average molecular weight of 150 to 5,000 with a phenol in the presence of an acid catalyst to obtain a composition which consists of a polybutadiene-phenol adduct and unreacted phenol, in said polybutadiene-phenol adduct, one molecule of phenol per 3 to 8 butadiene units being added to the polybutadiene, and reacting the composition of a polybutadiene-phenol adduct with a formaldehyde in the presence of a basic catalyst, said basic catalyst comprising a primary amine of the formula: R--NH.sub.2 wherein R is a hydrocarbon group having 1 to 20 carbon atoms in an amount of 0.01 to 0.5 mole per 1 mole of the phenol used for the preparation of the composition which is used alone or in combination thereof with other basic compound.Type: GrantFiled: June 12, 1979Date of Patent: September 22, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Seimei Yasui, Masakazu Sagou, Takanobu Noguchi, Yoshiki Toyoshima, Junzo Saito
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Patent number: 4288491Abstract: A laminated plastic material comprises surface layers of paper impregnated with amino formaldehyde resin and inner layers of paper containing a flame retardant material and impregnated with phenol formaldehyde resin. The flame retardant material is a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases and contains, in weight percent:______________________________________ P.sub.2 O.sub.5 total 37 to 63 P.sub.2 O.sub.5 water-soluble 0 to 6 NH.sub.3 3.Type: GrantFiled: March 13, 1979Date of Patent: September 8, 1981Inventors: Evgeny M. Surzhenko, Bronislav F. Basilaev, Roman V. Molotkov, Alexandr S. Madorsky, Grigory B. Shalun, Valentina B. Golynkina, Margarita A. Ershova, Irina P. Eliseeva, Nina E. Trukhtenkova, Sergei M. Gurylev, Diana L. Kopetskaya, Evgeny Y. Pechko, Albert S. Khlamenko, Viktor V. Magnitsky
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Patent number: 4278733Abstract: A laminate product and method of making the same involving a base material such as cellulose fibrous materials impregnated with a cured mixture of aniline, phenol, formaldehyde and epoxy resin, which laminate has electrical and mechanical properties with improved heat resistance over previous materials.Type: GrantFiled: July 23, 1979Date of Patent: July 14, 1981Assignee: Spaulding Fibre Company, Inc.Inventor: James R. Benzinger
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Patent number: 4267240Abstract: A novel release sheet comprising a web of paper having a water absorption of at least about 200 seconds which has been sized on at least one side thereof with a water-soluble, alkaline earth or earth metal salt, e.g. a calcium salt such as calcium chloride and then coated on said sized side with a film of a mixture of a salt of alginic acid, such as sodium alginate, and either (1) a triglyceride or (2) hydrolyzed or non-hydrolyzed lecithin, and a method of producing decorative laminates therewith.Type: GrantFiled: April 28, 1980Date of Patent: May 12, 1981Assignee: Formica CorporationInventors: Richard F. Jaisle, Kenneth D. Bunkowski
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Patent number: 4263373Abstract: An ultra thin laminate is made by: (1) assembling a laminate stack-up consisting of: one paper sheet having a top decorative surface and a bottom surface coated with a resinous film, about 0.25 mil to about 5 mil thick, effective to opacify the paper and provide a barrier to resin flow, and one abrasion resistant protective overlay sheet disposed in contact with the decorative surface of the paper sheet; (2) heat and pressure consolidating the stack-up to form a unitary decorative laminate having a thickness of between about 5 mil and about 15 mil, and having a resinous film on one side that is glue adherable.Type: GrantFiled: May 24, 1977Date of Patent: April 21, 1981Assignee: Westinghouse Electric Corp.Inventors: Harold O. McCaskey, Jr., Daniel L. Cannady, Jr.
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Carrier materials impregnated with thermosetting resins, process for their manufacture and their use
Patent number: 4246315Abstract: Described herein is a resin-cured carrier material and a process for preparing a resin-cured carrier material. The carrier material has two oppositely disposed major surfaces and a core therebetween, the core being impregnated with at least one heat-cured thermosetting resin and at least one of the two surfaces having a coating of at least one polymerization resin curable by U.V.-radiation, electron radiation or the radiation of radio-active isotopes.Type: GrantFiled: January 12, 1979Date of Patent: January 20, 1981Assignee: Sud-West Chemie GmbHInventors: Otto Kopp, Helmut Holzer, Charlotte Birnbaum geb. Schinko -
Patent number: 4235769Abstract: Disclosed is a color-developing composition for pressure-sensitive recording sheet material of the self-contained type comprising (A) 100 parts by weight of a copolymer obtained by reacting a p-alkylphenol having an alkyl moiety of from 1 to 12 carbon atoms and phenol with formaldehyde and (B) from 1 to 20 parts by weight of a hindered phenolic compound selected from phenols having an alkyl, alkylene or hydroxyl substituent radical in at least the 2- or 6-position, or both, of the benzene ring and derivatives thereof, the copolymer and the hindered phenolic compound being homogeneously dissolved in mutual solution. The hindered phenolic compound is either added to the starting materials for the preparation of the copolymer or, at the end of the copolymerization reaction, added to the resulting copolymer and dissolved homogeneously in mutual solution.Type: GrantFiled: January 19, 1979Date of Patent: November 25, 1980Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Makoto Asano, Saburo Kawashima, Kenichi Sugimoto, Tadashi Kobayashi
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Patent number: 4229330Abstract: Internally plasticized phenolic resins suitable for use in preparing laminates and the like excellent in electrical properties, heat resistance, solvent resistance as well as punchability are produced by reacting a compound of the formula: ##STR1## wherein R.sub.1 is an alkylene residue having 1 to 3 carbon atoms; and R.sub.2 and R.sub.3 are independently hydrogen or a saturated or unsaturated hydrocarbon group having 1 to 3 carbon atoms, with an epoxidized vegetable oil with heating in the presence of one or more secondary and/or tertiary amines, and adding formaldehyde or one or more phenols and formaldehyde to the reaction system to further proceed the reaction.Type: GrantFiled: August 28, 1978Date of Patent: October 21, 1980Assignee: Hitachi Chemical Company, Ltd.Inventors: Susumu Konii, Yukio Yoshimura, Ken Nanaumi, Kohei Yasuzawa, Takeshi Yoshida, Toyotaro Shinko
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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: 4207379Abstract: This invention relates to an improvement in a substrate web coated with a thermosetting coating resin and optionally impregnated with an aminoplast resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement that the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst, and optionally dyes, pigments and/or fillers. The invention also relates to a process for preparing a synthetic resin coated substrate web.Type: GrantFiled: July 31, 1978Date of Patent: June 10, 1980Assignee: Th. Goldschmidt AGInventors: Jurgen Fock, Eckehard Schamberg, Werner Schafer
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Patent number: 4182706Abstract: Bromated phenylglycerin ethers, prepared by reacting a brominated phenol with 2,3-epoxypropanol-1 in the presence of an alkali at elevated temperatures, are useful flame retardant agents for phenol resins and phenolic resin laminates when used in amounts of about 3 to 30 parts by weight per 100 parts of resin.Type: GrantFiled: May 16, 1978Date of Patent: January 8, 1980Assignee: Chemische Fabrik Kalk GmbHInventors: Herbert Jenkner, Robert Strang
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Patent number: 4181688Abstract: Cross-linkable phenolic resols are known but do not have good water resistance. Phenolic resols can be blended with N-methylol carbazole or a derivative thereof to give a cross-linkable material useful for laminating or as a metal cement.Type: GrantFiled: November 20, 1978Date of Patent: January 1, 1980Assignee: Coal Industry (Patents) LimitedInventors: Joseph G. Robinson, Lesley D. Herbert
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Patent number: 4179429Abstract: A new resol-type phenol resin is described which is obtained by heat-reacting isopropenylphenol oligomer as partial or whole phenol component of the resin with an aldehyde in the presence of a basic catalyst. Varnishes are obtained by adding a suitable vehicle to the resin. Laminates manufactured by impregnating a base with the phenol resin and heating the impregnated base to cure the resin are obtained with superior mechanical and electrical characteristics.Type: GrantFiled: January 19, 1978Date of Patent: December 18, 1979Assignee: Mitsui Toatsu Chemicals IncorporatedInventors: Kunio Hanauye, Tsutomu Takase, Yoshio Morimoto
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Patent number: 4175149Abstract: A mineral wool board is manufactured having relatively high density skins by including urea in at least the surface fibers of a consolidated mineral wool fiberboard containing cellulosic fibers and/or starch and then hot-pressing the consolidated board at a temperature of at least 525.degree. F. to form a board having high density surface skins.Type: GrantFiled: February 27, 1978Date of Patent: November 20, 1979Assignee: Masonite CorporationInventors: Allan J. Luck, John T. Clarke, Michael R. Hoffman
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Patent number: 4175148Abstract: A fiberboard is manufactured having relatively high density skins on a relatively low density core by including a skin forming chemical in at least the surface fibers of a consolidated mat, having a density of less than 35 pounds per cubic foot, and then hot-pressing the consolidated mat at a temperature of at least 525.degree. F. to form a board having high density surface skins.Type: GrantFiled: February 27, 1978Date of Patent: November 20, 1979Assignee: Masonite CorporationInventors: Allan J. Luck, John T. Clarke, Michael R. Hoffman
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Patent number: 4173684Abstract: 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, paraphenylphenol 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 a inert atmosphere to form the metal modified novolak resin.Type: GrantFiled: September 6, 1977Date of Patent: November 6, 1979Assignee: The Mead CorporationInventor: John J. Stolfo
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Patent number: 4166644Abstract: Improved print speed and image intensity are obtained in a pressure-sensitive record sheet material by incorporating a cross-linked urea-formaldehyde agglomerated resin pigment in the coated surface of the acid-reacting sheet. A typical formulation of the coating comprises kaolin clay, a zinc-modified phenol-formaldehyde resin, said urea-formaldehyde resin pigment and a suitable binder. When contacted under pressure with a surface containing microscopic rupturable capsules of a colorless chromogeneous material, a colored mark is formed by transfer of the colorless chromogeneous material to the acidic pigment coating.Type: GrantFiled: June 21, 1977Date of Patent: September 4, 1979Assignee: NCR CorporationInventors: Daniel J. Kay, Rashmikant R. Patel
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Patent number: 4166150Abstract: Disclosed is a release sheet having on at least one of its outer surfaces a dried and cured coating composition comprising a release agent, a cross-linkable thermoplastic resin, and a water dispersible organic compound containing polyoxyethylene, polyoxypropylene, or a block copolymer of polyoxyethylene and polyoxypropylene.Type: GrantFiled: December 23, 1977Date of Patent: August 28, 1979Assignee: Scott Paper CompanyInventors: John A. Mattor, Lawrence Price
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Patent number: 4163818Abstract: An anti-slip tray and the method of manufacturing it. Sheets of paper impregnated with melamine resin and paper sheets impregnated with phenolic resin are stacked in a pile. A loosely woven cloth covers the pile. Its upper face or major surface is covered with a layer of porous PVC which can be decorative. The cloth has a plurality of perforations. The cloth and pile are molded under heat and pressure.Type: GrantFiled: February 15, 1978Date of Patent: August 7, 1979Inventor: Pierre Wernli
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Patent number: 4158713Abstract: A flexible, integrally bonded sheet material suitable for use as a face surface covering on a composition board, which sheet material comprises: first and second fibrous sheet materials bonded together by a cured thermosetting resin, the first sheet and at least a portion of the second sheet impregnated with a cured thermosetting resin, the face surface of the first sheet material characterized by a cured thermosetting resin surface, and the back surface of the second sheet material consisting essentially of fibers and capable of absorbing into the fibrous surface of the second sheet material an adhesive material for bonding purposes.Type: GrantFiled: January 20, 1978Date of Patent: June 19, 1979Inventor: Alfredo Degens
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Patent number: 4158712Abstract: A composition board which comprises a thin nonfrangible sheet material suitable for use as a surface covering, which material comprises: a fibrous sheet material impregnated with a cured thermosetting resin and characterized by one surface which is a nonporous, adhesive-free, fully cured surface, and another surface which is characterized by an adhesive-rich nonsanded surface, the adhesive being compatible with the cured resin, the adhesive-rich surface adapted to be bonded to a substrate, and the resin-rich surface used as a face surface for the substrate.Type: GrantFiled: January 20, 1978Date of Patent: June 19, 1979Inventor: Alfredo Degens
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Patent number: 4157937Abstract: The present invention relates to a resole resin composition comprising a resole resin in combination with a polyvinylacetate resin and a solvent. Said composition provides a flexible bonding composition for filter papers wherein said resin is fast curing and the impregnated cured paper can be pleated after curing without cracking or further curing providing economies for the paper and filter fabricators and a superior filter paper.Type: GrantFiled: February 21, 1978Date of Patent: June 12, 1979Assignee: Monsanto CompanyInventor: Woodrow H. Ingram, II
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Patent number: 4157324Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.Type: GrantFiled: June 29, 1978Date of Patent: June 5, 1979Assignee: Monsanto CompanyInventor: Harry M. Culbertson
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Patent number: 4150194Abstract: Phenol is condensed with a substantial excess of formaldehyde in the presence of a minor amount of a glycol or a polyalkylene glycol to provide a resole useful as an impregnating resinous binder for paper substrates.Type: GrantFiled: July 17, 1978Date of Patent: April 17, 1979Assignee: Ashland Oil, Inc.Inventors: Fred G. Watts, James T. Henderson
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Patent number: 4140837Abstract: A decorative article of manufacture having at least one face which can be glued to other surfaces by using common adhesives and may be painted with a variety of paints and stains is disclosed.Type: GrantFiled: October 25, 1977Date of Patent: February 20, 1979Assignee: Formica CorporationInventors: Terry P. Drees, Michael C. Gallagher
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Patent number: 4136228Abstract: This invention relates to industrial laminates which can be cold punchable and are flame resistant. The laminates are prepared from paper impregnated with a composition comprising a phenol-formaldehyde resole resin and a vinyl chloride interpolymer.Type: GrantFiled: August 8, 1977Date of Patent: January 23, 1979Assignee: Monsanto CompanyInventor: Ronald H. Dahms
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Patent number: 4128696Abstract: A heat and pressure consolidated structure comprising, in superimposed relationship,(A) a self-supporting substrate, and(B) a decorative .alpha.-cellulose paper sheet impregnated with a composition comprising(1) a blend of an aqueous melamine/formaldehyde resin solution and from about 2% to about 20.0% of an ethylene glycol or (2) an aqueous solution of the resinous reaction product of melamine, formaldehyde and from about 2.0% to about 20.0% of an ethylene glycol, is disclosed.Type: GrantFiled: February 11, 1977Date of Patent: December 5, 1978Assignee: Formica CorporationInventors: James C. Goebel, Darwin F. Delapp, Kenneth D. Bunkowski
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Patent number: 4124554Abstract: There is disclosed a process for producing a dispersion of a phenolic resin in water by mixing a pre-formed, solid, substantially water-insoluble, phenolic resin with water, an organic coupling solvent, and polyvinyl alcohol. The resulting dispersions are especially useful in coatings applications.Type: GrantFiled: February 3, 1977Date of Patent: November 7, 1978Assignee: Union Carbide CorporationInventor: John S. Fry
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Patent number: 4122054Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.Type: GrantFiled: January 31, 1977Date of Patent: October 24, 1978Assignee: Monsanto CompanyInventor: Harry M. Culbertson
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Patent number: 4122235Abstract: The invention relates to a resin binder composition comprising, in combination, a resole resin and a metal salt curing accelerator providing a binder composition that has an improved cure rate in electrical grade laminates without adversely affecting electrical properties. The binder composition provides low viscosity for impregnation and accelerated curing rates for advancing the impregnated substrate prior to laminating and final curing.Type: GrantFiled: February 25, 1977Date of Patent: October 24, 1978Assignee: Monsanto CompanyInventor: Ronald H. Dahms
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Patent number: 4120847Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.Type: GrantFiled: September 6, 1977Date of Patent: October 17, 1978Assignee: Monsanto CompanyInventor: Harry M. Culbertson
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Patent number: 4113919Abstract: Bark-extended tannin-aldehyde resinous adhesives are formed in situ as adhesives for wood products, such as plywood. Bark, in a finely divided particle form, is treated with alkali and then used as an extender by admixing the bark particles with tannin and an aldehyde co-reactant therefor. The admixture is combined as a bonding agent for the wood members to be adhered, and is formed in situ into an adhesive by subjecting the wood members to temperature and pressure conditions effective to form a bark-tannin-aldehyde resin.Type: GrantFiled: April 27, 1977Date of Patent: September 12, 1978Assignee: Champion International CorporationInventor: Seymour Hartman
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Patent number: 4112188Abstract: The invention relates to a binder composition comprising a low molecular weight resole resin in combination with boron compounds wherein said boron compounds are present in from about 1 to 30 parts per 100 parts by resole resin solids, said composition having a pH of about 2-6 and said resole having a viscosity of from about 5 to 5000 cps. Said binder provides laminates having superior electrical and flame retardant properties.Type: GrantFiled: February 14, 1977Date of Patent: September 5, 1978Assignee: Monsanto CompanyInventor: Ronald H. Dahms
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Patent number: 4111730Abstract: A method of producing dry-process composition paper board from waste paper. Waste paper is particulated into flakes and the like fragments, conditioned for moisture content, and blended with an adhesive such as a synthetic thermosetting resin prior to forming by compression into mats which are cured under high pressure and temperature to form a rigid, cohesive paper flake board.The method obviates the need of sorting, pulping, cleaning and purification of waste paper and permits manufacture of structural panel boards in small recycling plants.Type: GrantFiled: September 13, 1976Date of Patent: September 5, 1978Inventor: John J. Balatinecz
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Patent number: 4110507Abstract: A decoratively branded plasterboard product having a pattern of recesses formed in the paper-like outer surface of the plasterboard is disclosed. The recesses are charred to discolor the same, and the pattern is preferably a wood grain simulating pattern.Type: GrantFiled: February 14, 1977Date of Patent: August 29, 1978Inventor: Gary C. Colledge
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Patent number: 4109057Abstract: A method for accelerated curing of phenolic resin adhesives comprises adding powdered green tea to a thermosetting phenolic resin at about ambient temperature.Type: GrantFiled: May 23, 1977Date of Patent: August 22, 1978Assignee: Sumitomo Durez Company, Ltd.Inventors: Nobutaka Nakamura, Yukio Saeki, Shigeru Nemoto
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Patent number: 4074015Abstract: A process for producing nonflammable laminated materials which includes the steps of impregnating a cellulose-containing material with an impregnating solution containing a phenolic-resol resin solution, at least one plasticizer for the resin and optionally flameproofing agents, subsequently drying the impregnated material to effect preliminary condensation of the resin and thereafter curing superimposed layers of the impregnated and preliminary condensed material by the application of heat and pressure. The phenol-resol resin solution used contains 50-80% by weight of an ammonia alkaline-condensed phenol-resol resin with a solids content of 65-80% by weight and with a molecular weight distribution determined by gel chromatography of: dimers 20-26%; tri- and tetramers 6-12%; penta- and oligomers 24-36%; expressed in percent per unit area and hexamethylenetetramine in amounts of 1-15% by weight based on the weight of the impregnating solution.Type: GrantFiled: June 4, 1975Date of Patent: February 14, 1978Assignee: Dynamit Nobel AktiengesellschaftInventors: Arnold Franz, Siegfried Koepnick
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Patent number: 4061823Abstract: A highly machinable, shapeable decorative laminate is made from a non-abrasive base core consisting of a plurality of sheets, each sheet consisting essentially of cotton linter fibers in paper form containing a curd phenolic resin, the core having superimposed thereon a print sheet impregnated with a cured thermoset resin.Type: GrantFiled: December 11, 1975Date of Patent: December 6, 1977Assignee: Westinghouse Electric CorporationInventors: Harold O. McCaskey, Jr., Salvatore E. Palazzolo
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Patent number: 4060450Abstract: High yield resin saturable papers containing total lignin, based on paper weight, in amounts from about 8 up to 15 percent are employed as core stock for high pressure decorative melamine laminates. At least 65 percent of the fibers should be hardwood fibers. Up to 35 percent of softwood fibers may be present but then the softwood lignin, based on paper weight, should not be greater than about 2.8 percent.Type: GrantFiled: April 11, 1975Date of Patent: November 29, 1977Assignee: Westinghouse Electric CorporationInventors: Salvatore E. Palazzolo, Harold O. McCaskey, Jr.
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Patent number: 4056656Abstract: As an improved flame-resistant agent, pentabromodiphenyl ether and mixtures of pentabromodiphenyl ether and brominated diphenyl ethers; an agent for impregnating a mass of particles which comprises an impregnating agent, pentabromodiphenyl ether, preferably together with a plasticizer; a laminate substrate comprising a web of fibers impregnated with an impregnating agent and pentabromodiphenyl ether, said web preferably containing a plasticizer; a method of increasing the flame resistance of a continuous web impregnated with an impregnating agent which comprises including in said web pentabromodiphenyl ether.Type: GrantFiled: April 28, 1975Date of Patent: November 1, 1977Assignee: Dynamit Nobel AktiengesellschaftInventors: Arnold Franz, Werner Stein
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Patent number: 4046937Abstract: A melamine-aldehyde resin is disclosed of a composition of melamine-aldehyde, a water-soluble, aliphatic diglycidyl ether, and water. The composition is cured to the A-stage and an absorbent sheet is impregnated with the resin which is then cured to the B-stage. At least one B-staged sheet is stacked with a postformable core stock and heated and pressed to form a C-staged postformable laminate. The laminate can be heated and pressed to postform it. The postformed laminate can be adhesively bonded to a substrate to form a counter top or other article.Type: GrantFiled: October 10, 1974Date of Patent: September 6, 1977Assignee: Westinghouse Electric CorporationInventors: Harold O. McCaskey, Jr., Lenon G. Brooker
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Patent number: 4046935Abstract: Rigid-when-wet, but foldable, corrugated paperboard and process of making same by applying phenolic resin to contiguous surfaces of the outer liner, the medium, and the inner liner without substantially altering the hygroscopicity of the exposed faces of the liners, and adhering the three components together before the resin is cured.Type: GrantFiled: April 14, 1975Date of Patent: September 6, 1977Assignee: Altor Box Board CompanyInventors: Robert M. Wilkinson, James R. Lyon