Of Aldehyde Or Ketone Condensation Product Patents (Class 428/524)
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Patent number: 4265967Abstract: A waterproofing sheet material useful for example as a free floating membrane or flashing material in roofing applications, a pond liner, or a gasketing material, composed of from about 15 wt. % to about 80 wt. % of an ingredient selected from the group consisting of:(a) homopolymers of alkadienes and substituted alkadienes(b) addition copolymers of alkadienes with unsaturated monomers(c) homopolymers of alkenes and substituted alkenes selected from the group consisting of polyethylene, chlorosulfonated polyethylene and polyisobutylene(d) resin acids and resin acid derivatives(e) highly aromatic bituminous materials, and(f) pine oiland from about 85 wt. % to about 20 wt. % of a plasticized polyvinyl butyral resin. Minor amounts of fatty acids and paraffin wax may be added to improve low temperature properties and to facilitate processing a hot melt admixture of the ingredients into a sheet.Type: GrantFiled: October 26, 1979Date of Patent: May 5, 1981Assignee: Tremco, IncorporatedInventors: Charles A. Kumins, Milan L. Warford
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Patent number: 4264674Abstract: A waterproofing sheet material useful for example as a free floating membrane or flashing material in roofing applications, a pond liner, or a gasketing material, composed of from about 15 wt. % to about 80 wt. % of an ingredient selected from the group consisting of:(a) homopolymers of alkaldienes and substituted alkadienes(b) addition copolymers of alkadienes with unsaturated monomers(c) homopolymers of alkenes and substituted alkenes selected from the group consisting of polyethylene, chlorosulfonated polyethylene and polyisobutylene(d) resin acids and resin acid derivatives(e) highly aromatic bituminous materials, and(f) pine oiland from about 85 wt. % to about 20 wt. % of a plasticized polyvinyl butyral resin. Minor amounts of fatty acids and paraffin wax may be added to improve low temperature properties and to facilitate processing a hot melt admixture of the ingredients into a sheet.Type: GrantFiled: October 26, 1979Date of Patent: April 28, 1981Assignee: Tremco, IncorporatedInventors: Charles A. Kumins, Milan L. Warford
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Patent number: 4264669Abstract: Described are poly(parabanic acid) films coated with an acrylic adhesive from aqueous dispersion and laminated articles made therefrom.Type: GrantFiled: September 26, 1979Date of Patent: April 28, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward L. Yuan
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Patent number: 4262054Abstract: A magnetic bubble memory device is disclosed in which a hardened film made of a heat-resisting highly-polymerized organic resin and having a predetermined thickness is employed for an insulating film interposed between a conductor pattern and a soft magnetic material pattern. In a conventional magnetic bubble memory device in which the above-mentioned insulating film is made of SiO.sub.2, an abrupt step is produced in the soft magnetic material pattern due to the existence of the conductor pattern beneath a portion of the soft magnetic material pattern, and the margin of bias magnetic field is thereby lowered. According to the present invention, the step is reduced and smoothed, and thus the lowering of the margin can be prevented.Type: GrantFiled: August 3, 1979Date of Patent: April 14, 1981Assignee: Hitachi, Ltd.Inventors: Hiroshi Umezaki, Hideki Nishida, Hirozi Yamada, Yutaka Sugita, Katsuhiro Kaneko, Nagatugu Koiso, Masatake Takahashi, deceased
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Patent number: 4259425Abstract: An electrographic recording material comprising a conductive sheet support coated with an electrically insulating layer comprising an intimate blend of a polymeric binder and up to 500 parts of an inert finely divided pigment per 100 parts by weight of polymeric binder. The binder comprises from about 40 to about 90 parts by weight of a poly(vinyl acetal) and from about 10 to about 60 parts by weight of a polystyrene or a poly(.alpha.-methylstyrene). The electrographic recording material exhibits improved toner adhesion.Type: GrantFiled: May 11, 1979Date of Patent: March 31, 1981Assignee: Monsanto CompanyInventor: Irving Serlin
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Patent number: 4255486Abstract: The strength of the bond obtained between substates with the aid of phenoplasts, modified phenoplasts and/or epoxy resins, e.g. between fibrous material and an elastomer on vulcanization thereof, is improved by applying, to at least one of the substrates, in addition to a preformed phenoplast, modified preformed phenoplast, and/or preformed epoxy resin, and drying thereon before the assembly thereof with the other substrate, as an adhesion promoter, a quantity of m-aminophenol, which may be blended in a phenoplast adhesive, such as an RF dip or an RFL dip, or may be blended in the elastomer latex used for forming an RFL dip. Adhesive/promoter blends and latex/promoter blends for forming the same are also disclosed.This is a divison of application Ser. No. 951,040, filed October 13, 1978, now abandoned, which in turn is a division of Ser. No. 754,182, filed December 29, 1976, now U.S. Pat. No. 4,131,584 which in turn is a division of Ser. No. 422,777, filed December 7, 1973, now U.S. Pat. No.Type: GrantFiled: October 11, 1979Date of Patent: March 10, 1981Assignees: Marion Darrah, Joseph Y. HoughtonInventors: Oliver W. Burke, Jr., Barbara P. Hunt
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Patent number: 4254185Abstract: The invention relates to a liquid coating composition based on an aminoplast and an ester thiol built up from a polyol and a mercaptocarboxylic acid having 2 to 7 carbon atoms. The invention also relates to a process for coating a substrate with such a composition, and to the substrate thus manufactured.Type: GrantFiled: March 23, 1979Date of Patent: March 3, 1981Assignee: Akzo N.V.Inventor: Roelof Buter
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Patent number: 4250661Abstract: A covering multilayer film or sheet structure for agricultural application, which consists essentially of:(1) a film or sheet of a resin composition comprising (A) 100 parts by weight of a thermoplastic resin selected from the group consisting of olefinic resins and vinyl chloride resins and (B) about 1 to about 40 parts by weight of an acetal resin, and(2) a layer of the thermoplastic resin (A) laminated to at least one surface of the film or sheet (1); and a method for maintaining an agricultural locus at temperatures suitable for the growth of plants, using aforesaid covering multilayer film or sheet.Type: GrantFiled: August 23, 1979Date of Patent: February 17, 1981Assignee: Sekisui Kagaku Kogyo K.K.Inventors: Yoshiaki Kodera, Kiyoyuki Watanabe, Tetsuo Kadoya, Tadashi Taguchi
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Patent number: 4250224Abstract: A combustion resistant material which will not produce toxic gases when subjected to heat, and which can be formed by moulding or by coating it onto a receiving surface whilst its constituents are reacting is produced by reacting a mixture of:62 to 76:percent by weight aluminium oxide or hydroxide12 to 16:percent by weight phenol resin11.5 to 17.5:percent by weight furfuryl alcoholwith sulphonic acid which serves as hardener, the proportion by weight of the sulphonic acid being from one-tenth to one-twentieth of the amount of aluminium oxide. The viscosity of the reaction mixture can be adjusted by addition of thinners such as butanol or butylglycol, or of thickeners such as chalk, particulate silicic acid, talc or magnesium oxide.Type: GrantFiled: April 4, 1980Date of Patent: February 10, 1981Assignee: Firma Erich Ruhl Chemische Fabrik und Chemikalien-GrosshandelInventor: Berthold Newitzki
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Patent number: 4250282Abstract: A melamine-formaldehyde resin useful for making coated wood-based materials and laminates and having a prolonged pot life comprises (a) melamine-formaldehyde precondensation product wherein the molar ratio of melamine:formaldehyde is 1:1.4 to 1:2.6 and (b) 0.1 to 1.0% by weight based on total solids, of an amine of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each identical or different alkyl having 1 to 4 carbon atoms and R.sup.3 is 2-hydroxyethyl, 2-(2-hydroxyethoxy)-ethyl, 3-hydroxy-1-propyl, 3-hydroxy-2-propyl, 2,3-dihydroxypropyl or--CH.sub.2 CH.sub.2 --NR.sup.1 R.sup.2,wherein said amine may be present entirely or partially in the form of its reaction product with the melamine-formaldehyde pre-condensation product.Type: GrantFiled: November 13, 1979Date of Patent: February 10, 1981Assignee: Cassella AktiengesellschaftInventors: Peter Dorries, Steffen Piesch, Alfons Wolf
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Patent number: 4243719Abstract: The present invention provides a reinforced glass laminate, comprising a non-hydrophilic synthetic resin, at least one surface of which has been rendered hydrophilic by bonding thereon a layer of a hydrophilic material, a layer of hydrophilic synthetic resin being bonded to said layer of hydrophilic material and a layer of glass being bonded to said layer of hydrophilic synthetic resin.The present invention also provides a process for producing a reinforced glass laminate, wherein a non-hydrophilic synthetic resin is coated with a solution capable of forming a layer of a hydrophilic material thereon, the solvent medium is then removed, a hydrophilic synthetic resin is placed on the layer of hydrophilic material and glass is then placed on the hydrophilic synthetic resin, whereafter bonding together of the layers is achieved either by applying an increased pressure at an elevated temperature or by heating under reduced pressure.Type: GrantFiled: January 29, 1979Date of Patent: January 6, 1981Assignee: Romag Holdings Ltd.Inventor: Alan Holmes
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Patent number: 4243800Abstract: A strippable coating resin obtained by the process comprising the step of reacting tris(hydroxymethyl)nitromethane with an aliphatic polyamine of 2 to 10 carbon atoms in a mole ratio of 1 to 0.5-1.0 at ambient temperatures in the presence of a monoamine or an alkanolamine.Type: GrantFiled: March 30, 1979Date of Patent: January 6, 1981Assignee: International Minerals & Chemical Corp.Inventor: Jerry H. Hunsucker
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Patent number: 4243716Abstract: A thermal sensitive paper having a heat sensitive layer containing a color-forming lactone compound and a phenol compound is amazingly lessened in possible deposition of its residue on the thermal head during the printing operation when finely divided urea-formaldehyde resin is incorporated in at least one of the heat sensitive layer, support and between said heat sensitive layer and support.Type: GrantFiled: July 18, 1978Date of Patent: January 6, 1981Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Takao Kosaka, Yukio Tahara
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Patent number: 4238559Abstract: A resist mark comprising two layers of resist, one of which is saturated with a diluant which does not dissolve the other. In one embodiment, the two layers of resist are applied upon a substrate, the first layer of which is more soluble in a developer. The second layer is said saturated resist and the first layer is non-saturated. This composite is preferably used to form a relief mask with recessed sidewalls used in lift-off processes.Type: GrantFiled: August 24, 1978Date of Patent: December 9, 1980Assignee: International Business Machines CorporationInventors: Bai-Cwo Feng, George C. Feng
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Patent number: 4235762Abstract: The addition of a water-absorbent, finely divided powder to a phenolic resole resin provides a stabilized resin composition which cures in the presence of an acid catalyst at ambient temperatures to a relatively thick coating having a reduced number of defects, e.g., pinholes and blistering. For example, a resole resin composition containing a stabilizing amount of fumed silica can be blended with a mixture of benzene sulfonyl chloride and trichloroacetic acid, applied to a substrate and cured to form an essentially defect-free coating.Type: GrantFiled: January 23, 1979Date of Patent: November 25, 1980Assignee: The Dow Chemical CompanyInventors: C. Eugene Jinkins, Bobby Legler
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Patent number: 4226442Abstract: A water insensitive image receptor coating composition for pressure sensitive carbonless type transfer media.Type: GrantFiled: April 27, 1979Date of Patent: October 7, 1980Assignee: Frye Copysystems, Inc.Inventors: Gene D. Carlson, Gerry H. Ehrhardt
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Patent number: 4223069Abstract: A three-coat system for use on bakeware which has a silvery appearance and can be cured at low temperatures. First, an epoxide-formaldehyde-nitrogen resin primer, which may contain aluminum flake, is applied to the substrate, then a reactive silicone-epoxy coat containing talc and coarse aluminum flake is applied. Finally, a less reactive silicone resin containing coarse aluminum flake, but no other pigment is applied. The two final coats are applied directly on the preceding coat after only ambient temperature air drying. After the final coat is applied, the coated article is baked at temperatures that need not exceed 275.degree. C.Type: GrantFiled: December 29, 1978Date of Patent: September 16, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventor: Jacques M. L. Berghmans
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Patent number: 4217377Abstract: This invention is directed to low molecular weight, solid addition products having a softening point above 100.degree. F. and the method of preparing same and more particularly to the use of said addition products as crosslinking agents in various polymeric powder coatings, e.g. polyesters. The solid, low molecular weight products are derived from the addition reaction of at least one monohydroxy, single-ring aromatic carbon compound and hexakis (alkoxymethyl) amino-triazine.Type: GrantFiled: April 13, 1979Date of Patent: August 12, 1980Assignee: The Sherwin-Williams CompanyInventors: Greg D. Shay, James H. Griffith
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Patent number: 4214034Abstract: A covering multilayer film or sheet structure for agricultural application, which consists essentially of:(1) a film or sheet of a resin composition comprising (A) 100 parts by weight of a thermoplastic resin selected from the group consisting of olefinic resins and vinyl chloride resins and (B) about 1 to about 40 parts by weight of an acetal resin,and(2) a layer of the thermoplastic resin (A) laminated to at least one surface of the film or sheet (1); and a method for maintaining an agricultural locus at temperatures suitable for the growth of plants, using aforesaid covering multilayer film or sheet.Type: GrantFiled: June 1, 1978Date of Patent: July 22, 1980Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Yoshiaki Kodera, Kiyoyuki Watanabe, Tetsuo Kadoya, Tadashi Taguchi
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Patent number: 4212909Abstract: A composition for coating the surface of a substrate, particularly structural members, and providing thereon an adherent, fireproof barrier coating including an aqueous dispersion containing vinyl acetate, titanium dioxide, pumice, zinc oxide, sodium silicate, hydrated magnesium aluminum silicate, a comminuted high temperature fluorocarbon resin, a furan resin, comminuted charcoal, and a dispersing agent.Type: GrantFiled: June 18, 1979Date of Patent: July 15, 1980Assignee: Wausau Homes, Inc.Inventor: William F. Brown
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Patent number: 4211682Abstract: A dental hydraulic investment comprising (A) an aqueous polyvinyl alcohol solution, (B) a water-soluble metallic compound, (C) a water-soluble, thermosetting resin precondensate and (D) a filler. Use of this investment allows formation of a desired denture by either a thermal polymerization or a room temperature polymerization method, and the denture thus obtained has excellent surface luster and is high in dimensional accuracy.Type: GrantFiled: March 10, 1978Date of Patent: July 8, 1980Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Taro Suminoe, Tetsuo Ito, Eiichi Masuhara
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Patent number: 4210565Abstract: Ambient or low-temperature curable solutions or aqueous dispersions of (1) a polymer containing units polymerized from a monomer mixture of (a) from about 0.25% to about 30% by weight of a polymerizable aldehyde, and (b) at least one copolymerizable mono-ethylenically unsaturated monomer, with (2) a curing agent selected from the group of dicarboxylic acid bis-hydrazides, dicarboxylic acid bis-hydrazones, and acrylic oligomers and low molecular weight acrylic solution polymers containing a plurality of pendant hydrazide or hydrazone groups. The solutions or dispersions are useful as general industrial coatings, maintenance coatings, furniture and appliance coatings, heavy transportation coatings, automobile refinishes and plastics coatings.Type: GrantFiled: February 2, 1979Date of Patent: July 1, 1980Assignee: Rohm and Haas CompanyInventor: William D. Emmons
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Patent number: 4205115Abstract: Coating compositions having a high degree of elasticity, as well as toughness, durability and good metallic pigment pattern control are disclosed. This combination of properties makes the coatings particularly desirable for use on elastomeric substrates such as those associated with automobiles. The coating compositions comprise as a resinous component, an ungelled hydroxyl-containing polyester of high weight average molecular weight. The polyesters can be cured with a curative such as an aminoplast to give coatings having outstanding elastomeric properties and good pigment dispersibility, particularly good metallic pigment pattern control, properties not normally associated with polyesters for use in coating applications.Type: GrantFiled: April 19, 1978Date of Patent: May 27, 1980Assignee: PPG Industries, Inc.Inventors: Robert M. Piccirilli, Wen-Hsuan Chang, David T. McKeough, Samuel Porter, Jr.
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Patent number: 4202926Abstract: Microporous films are charged with selected polymer curing agents and brought into contact with a curable material to thereby crosslink it. Specific curable materials useful both for the microporous film and the curable polymer include epoxy resins which form strong adhesive bonding systems in various environments.Type: GrantFiled: June 13, 1975Date of Patent: May 13, 1980Assignee: PPG Industries, Inc.Inventor: Rostyslaw Dowbenko
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Patent number: 4200729Abstract: Amino resins, e.g., urea-formaldehyde and melamine-formaldehyde thermosetting resin systems, are cured with thermally-decomposable adducts of aromatic sulfonic acids and oxa-azacyclopentanes. The resin products cured with these adducts provide surface coatings having superior water resistance properties. The cured compositions can include other conventional ingredients capable of co-reacting with the amino resins, such as polyols, polyacids, alkyd resins, polyester resins, epoxies, acrylics and the like, to provide compositions curable to products having a wide range of properties.Type: GrantFiled: May 22, 1978Date of Patent: April 29, 1980Assignee: King Industries, IncInventor: Leonard J. Calbo
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Printing matrix or mold component formed from an aminoplast resin-polyvinyl alcohol reaction product
Patent number: 4198364Abstract: A shapeable matrix is provided for use in making of graphic art reproductions and in particular as a mold in forming of printing plates and other marking items.Type: GrantFiled: September 18, 1978Date of Patent: April 15, 1980Assignee: Fiberite CorporationInventor: William A. Laurie -
Patent number: 4195116Abstract: Coating compositions comprising an alkylated urea-formaldehyde resin and a polymethylol cyclohexane, which are useful for low temperature cure and are low in viscosity to allow ease of coating without the need for appreciable amounts of solvent thinners. The alkylated urea-formaldehyde condensates have an average degree of condensation of about 3 or less and a combined urea:formaldehyde:alcohol ratio in the range of about 1:2-3:1-2.5. The compositions may be cured in the presence of acid catalysts in the temperature range of 70 to 105.degree. C., and are particularly useful for coating paper, cloth and wood substrates.Type: GrantFiled: May 15, 1978Date of Patent: March 25, 1980Assignee: Monsanto CompanyInventors: George J. Anderson, J. Owen Santer, Timothy F. Desmond
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Patent number: 4190547Abstract: Non-flammable insulating materials having good fire resistance and a density of from 80 to 230 g/l, which materials compriseA. from 99 to 80% by weight of inorganic lightweight particles, preferably expanded perlite or vermiculite,B. from 0 to 20% by weight of fibrous or granular inorganic additives andC. from 1 to 20% by weight of a heat-resistant organic high molecular weight binder, preferably a phenol-formaldehyde condensate,and which contain, as an additional binder C' to prevent water absorption, from 0.2 to 4% by weight of an alkylphenol/phenyl/formaldehyde condensate.The materials may be used as heat insulating materials or building materials.Type: GrantFiled: May 25, 1978Date of Patent: February 26, 1980Assignee: BASF AktiengesellschaftInventors: Harald Mahnke, Juergen Nieberle, Volker Trautz, Heinz Weber
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Patent number: 4190700Abstract: Coating compositions comprising an alkylated urea-formaldehyde resin, a polymethylolcyclohexane and a polyoxypropylene polyol which are useful for low temperature cure and are low in viscosity to allow ease of coating without the need for appreciable amounts of solvent thinners. The alkylated urea-formaldehyde condensates have an average degree of condensation of about 3 or less and a combined urea:formaldehyde:alcohol ratio in the range of about 1:2-3:1-2.5. The compositions may be cured in the presence of acid catalysts in the temperature range of 70.degree. to 105.degree. C., and are particularly useful for coating paper, cloth and wood substrates.Type: GrantFiled: May 15, 1978Date of Patent: February 26, 1980Assignee: Monsanto CompanyInventors: George J. Anderson, J. Owen Santer, Timothy F. Desmond
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Patent number: 4189421Abstract: This invention is directed to low molecular weight, solid addition products having a softening point above 100.degree. F. and the method of preparing same and more particularly to the use of said addition products as crosslinking agents in various polymeric powder coatings, e.g. polyesters. The solid, low molecular weight products are derived from the addition reaction of at least one monohydroxy, single-ring aromatic carbon compound and hexakis (alkoxymethyl) amino-triazine.Type: GrantFiled: May 20, 1977Date of Patent: February 19, 1980Assignee: The Sherwin-Williams CompanyInventors: Greg D. Shay, James H. Griffith
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Patent number: 4189414Abstract: Novel coating compositions for architectural use are provided, which include a quaternary ammonium silicate having a silica content of 10 to 60% by weight and a liquid epoxide resin, besides the conventional ingredients, such as pigments, fillers, aggregates and water, and which are particularly capable of producing films having excellent adherency to mortar or concrete surfaces. If a stabilized silica sol is added to the compositions, films produced therefrom have much improved resistance to water at low temperatures as well as freeze-thaw stability.Type: GrantFiled: October 13, 1978Date of Patent: February 19, 1980Assignee: Kowa Chemical Industry Ltd.Inventors: Kiyoshi Kikuchi, Takeo Okano, Yukio Terakawa, Akira Nishihara, Koji Kono
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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: 4180620Abstract: Plasticized polyvinyl butyral resins having improved impact resistance in glass laminates through the incorporation of metal salts of neo decanoic acid.Type: GrantFiled: February 2, 1978Date of Patent: December 25, 1979Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harold K. Inskip
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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: 4178273Abstract: A composition for coating the surface of a substrate, particularly structural members, and providing thereon an adherent, fireproof barrier coating including an aqueous dispersion containing vinyl acetate, titanium dioxide, pumice, zinc oxide, sodium silicate, hydrated magnesium aluminum silicate, a comminuted high temperature fluorocarbon resin, a furan resin, comminuted charcoal, and a dispersing agent.Type: GrantFiled: October 10, 1978Date of Patent: December 11, 1979Assignee: Wausau Homes, Inc.Inventor: William F. Brown
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Patent number: 4176216Abstract: The present invention provides particular phenol/formaldehyde resoles which are especially useful as foamable resins, and further provides cellular phenolic products having physical properties which are especially attractive for end-use application as construction foam. The resoles are characterized by a particular relationship between their viscosity and water content, expressed as the area bounded by certain points on a plot of resole viscosity on a logarithmic scale, as a function of water content of the resole, the particular area depending upon the mole ratio of formaldehyde-to-phenol at which the resole has been condensed. It has been found that phenol-formaldehyde resoles having the defined viscosity/water relationship are capable of providing phenolic foam having acceptable foam processability, a foam density from about 1.90 to about 3.Type: GrantFiled: September 29, 1978Date of Patent: November 27, 1979Assignee: Union Carbide CorporationInventors: Wallace G. Reid, Rakesh Saini, Kenneth E. Atkins
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Patent number: 4176106Abstract: The present invention provides particular phenol/formaldehyde resoles which are especially useful as foamable resins, and further provides cellular phenolic products having physical properties which are especially attractive for end-use application as construction foam. The resoles are characterized by a particular relationship between their viscosity and water content, expressed as the area bounded by certain points on a plot of resole viscosity on a logarithmic scale, as a function of water content of the resole, the particular area depending upon the mole ratio of formaldehyde-to-phenol at which the resole has been condensed. It has been found that phenol-formaldehyde resoles having the defined viscosity/water relationship are capable of providing phenolic foam having acceptable foam processability, a foam density from about 1.90 to about 3.Type: GrantFiled: July 28, 1977Date of Patent: November 27, 1979Assignee: Union Carbide CorporationInventors: Wallace G. Reid, Rakesh Saini, Kenneth E. Atkins
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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: 4154891Abstract: Novel thermosetting resinous compositions are disclosed. The compositions comprise the reaction product of a polymeric polyol having a cured glass transition temperature less than 20.degree. C. with a substantial stoichiometric excess of an aminoplast curative. The cured compositions are hard with good durability and surprising flexibility for such high aminoplast loadings.These compositions are particularly useful as coatings for resilient and rubbery substrates such as foam rubber, polyurethane foam and vinyl foam and on soft metal surfaces such as mild steel and aluminum.Type: GrantFiled: March 7, 1977Date of Patent: May 15, 1979Assignee: PPG Industries, Inc.Inventors: Samuel Porter, Jr., Roger L. Scriven, Wen-Hsuan Chang, James B. O'Dwyer
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Patent number: 4153754Abstract: The invention relates to a magnetic recording medium, for example a magnetic tape, which comprises a carrier and a magnetizable coating provided thereon which comprises a binder as well as a magnetic pigment dispersed in the binder by means of a dispersing agent. As a dispersing agent is used an N-acylsarcosine derivative. Herewith an optimum dispersion of the pigment in the binder is obtained in a short dispersion time. An excess of dispersing agent serves as a lubricant upon migration. The acyl group comprises preferably an aliphatic or olefinic hydrocarbon chain having 12-22 carbon atoms. Furthermore are to be preferred salts of N-acrylsarcosine, in particular metal salts, alkali metal salts, alkaline earth metal salts and amine salts.Type: GrantFiled: April 10, 1978Date of Patent: May 8, 1979Assignee: U.S. Philips CorporationInventor: Hendrikus Huisman
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Patent number: 4148968Abstract: An electrophotographic method comprises developing an electric latent image formed on a photosensitive member comprising a photoconductive material and containing a first color forming agent in a surface for forming a visible image with a charged toner particle containing a second color forming agent, and heating to cause a thermal color forming reaction therebetween resulting in formation of a colored fixed image on the photosensitive member and a receiving sheet comprising a color forming agent (B) and a material having a melting point from 40.degree. to 130.degree. C.Type: GrantFiled: March 20, 1975Date of Patent: April 10, 1979Assignee: Canon Kabushiki KaishaInventors: Shinichiro Nagashima, Kaichi Tsuchiya, Yoshihiro Sakamoto, Hiroshi Yamakami, Seiji Tomari
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Patent number: 4142014Abstract: Metal salts of hydrolyzed long chain alkyl vinyl ether-maleic anhydride copolymers and thermally resistant release coating compositions comprising solutions or emulsions of said salts.Type: GrantFiled: April 6, 1973Date of Patent: February 27, 1979Assignee: GAF CorporationInventor: Thomas S. Mestetsky
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Patent number: 4138528Abstract: Articles coated with a thermoset reaction product of a liquid resin composition comprising a reactive polymer and an N,N'-bis(alkoxymethyl)uron such as N,N'-bis(butoxymethyl)uron. The reactive polymer contains reactive groups such as hydroxyl and carboxyl and is of molecular weight in the range 300 to 5000. The uron ether is employed as a cosolvent for the polymer whereby the solution may be applied as a coating without the need for significant amounts of conventional solvents. Interaction between the polymer and the uron ether promoted by heat in the presence of acid catalyst shifts the role of the uron ether to that of a crosslinking agent for the polymer.Type: GrantFiled: April 11, 1977Date of Patent: February 6, 1979Assignee: Monsanto CompanyInventors: Frank J. Hahn, James O. Santer
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Patent number: 4136846Abstract: A high density honeycomb with a unidirectional reinforcing fiber located on each face makes up a primary load carrying member. A low density honeycomb material in combination with the load carrying member makes up the core of a structural member which is completed by the core being encased in a reinforced plastic.Type: GrantFiled: December 20, 1976Date of Patent: January 30, 1979Assignee: Boeing Commercial Airplane CompanyInventor: Paul C. Brault
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Patent number: 4133931Abstract: A process for producing a closed cell phenolic-resin foam material comprising a phenolic-resin polymer and surfactant which is branched, non-ionic, with a hydroxyl value less than 50 achieved by capping excess hydroxyl groups; the material, and a structural laminate employing the material. The material has a thermal conductivity which is low initially and remains low for a long period of time.Type: GrantFiled: April 12, 1978Date of Patent: January 9, 1979Assignee: The Celotex CorporationInventors: John H. Beale, Ernest K. Moss
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Patent number: 4130692Abstract: Coating compositions comprising alkoxymethylaminotriazines, polyols and polyether triols which are useful for low temperature cure, are low in viscosity to allow ease of coating without the need for appreciable amounts of solvent thinners, and provide coatings free from the problems of crawling, cratering, pinholing and "orange peel" formation. The alkoxymethylaminotriazines are preferably alkoxymethylmelamines. The polyols are polymethylol compounds in which oxygen atoms are separated by at least three carbon atoms of an aliphatic or alicyclic chain. The compositions may be cured in the presence of acid catalysts in the temperature range of 70.degree. to 105.degree. C.Type: GrantFiled: October 20, 1976Date of Patent: December 19, 1978Assignee: Monsanto CompanyInventors: George J. Anderson, Timothy F. Desmond, J. Owen Santer
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Patent number: 4129547Abstract: A low viscosity high solids thermosetting coating composition useful in the packaging industry as a barrier coating and overprint varnish, based urea-formaldehyde crosslinking agents and low molecular weight polyols, is provided. These compositions provide rapid cure response and afford coatings having good gloss, clarity, and mar resistance and are non-blocking. The compositions do not contain aromatic solvents and are applicable by gravure or flexographic techniques.Type: GrantFiled: June 30, 1977Date of Patent: December 12, 1978Assignee: E. I. Du Pont de Nemours and CompanyInventor: Paul R. Noyes
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Patent number: 4129681Abstract: Coating compositions comprising alkoxymethylaminotriazines, polyols and polyhydroxy oligomers which are useful for low temperature cure, are low in viscosity to allow ease of coating without the need for appreciable amounts of solvent thinners, and provide coatings free from the problems of crawling, cratering, pinholing and "orange peel" formation. The alkoxymethylaminotriazines are preferably alkoxymethylmelamines. The polyols are polymethylol cyclohexanes containing from 2 to 4 methylol groups. The polyhydroxy oligomers are polyesters or acrylic resins. The compositions may be cured in the presence of acid catalysts in the temperature range of 70.degree. to 105.degree. C.Type: GrantFiled: October 20, 1976Date of Patent: December 12, 1978Assignee: Monsanto CompanyInventors: George J. Anderson, Timothy F. Desmond, J. Owen Santer
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Patent number: 4123579Abstract: A substrate is made for use as a top layer in a laminate; the substrate being impregnated with, and having a continuous film on its surface of, a dried, catalyzed, uncured resin, comprising the reaction product of 1 mole of melamine, about 1.8 moles to about 2.7 moles of uninhibited formaldehyde and about 0.05 mole to about 0.40 mole of urea; where the resin content of the substrate is between about 50 wt.% to about 85 wt.%, and the dried, continuous film on the substrate layer will cure within about 30 seconds to about 90 seconds, under pressures of between about 150 psi. to about 500 psi, without the formation of a discontinuous film.Type: GrantFiled: March 30, 1977Date of Patent: October 31, 1978Assignee: Westinghouse Electric Corp.Inventor: Harold O. McCaskey, Jr.
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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