Water Dnrm Patents (Class 524/598)
  • Patent number: 4525535
    Abstract: A protective surface coating composition particularly useful for wood coating containing hydroxylated polyester, glycoluril, and emulsion polymer can be heat cured to produce cured films on substrates. The coating is particularly useful as wood coatings.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: June 25, 1985
    Assignee: SCM Corporation
    Inventors: Gary P. Craun, Henry J. DeGraaf
  • Patent number: 4520050
    Abstract: This invention is a composition for polyester fiber for use in reinforcing, the finish composition being characterized by an oil portion containing a lubricant and 3-30 weight % of a melamine compound.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: May 28, 1985
    Assignee: Unitika Limited
    Inventor: Shigemitsu Murase
  • Patent number: 4520176
    Abstract: A textile finishing composition comprising (1) a diluent and (2) a durable press resin composition containing (a) an aminoplast resin and (b) an aldehyde. The textile finishing composition is combined with an acid catalyst and applied to textile materials to impart softness, improved wetting properties and durable press properties.The textile finishing composition is applied at lower than normal dry add-on levels to textile materials to provide textile materials having lower levels of formaldehyde.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: May 28, 1985
    Assignee: SWS Silicones Corporation
    Inventors: Eugene R. Martin, David S. Ansel, Paul A. Manis
  • Patent number: 4503907
    Abstract: A heat exchanger, e.g. that used in an air-conditioner, having a plurality of spaced plate-fins with narrow distance in parallel and a plurality of heat transfer pipes passing through said fins, said fins being coated with an aqueous coating composition comprising 100 parts by weight of a resin composition for water paint in solids content, 5 to 95 parts by weight of a surface active agent and 5 to 65 parts by weight of synthetic silica and baked at a temperature of 120.degree. C. to 200.degree. C. for 10 to 40 minutes to give a coating film of 3 to 20 .mu.m, has excellent hardness and corrosion resistance without damaging hydrophilic properties.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: March 12, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Tatsumi Tanaka, Kiyoshi Hikita, Masaru Furuhashi, Toshio Hatada, Katsuzi Nakano, Akira Arai
  • Patent number: 4501839
    Abstract: Highly concentrated aqueous solutions of low viscosity of melamine/aldehyde resins are obtained by reacting to a precondensate in a first step melamine and an aldehyde in an alkaline medium and in the presence of water together with at least one compound (I), selected from the group, consisting of an alkali sulfite, an alkaline earth sulfite, an amino sulfonic acid, an amino carboxylic acid, a hydroxycarboxylic acid, a hydroxycarboxylic acid lactone, and a polyhydroxy carboxylic acid lactone, reacting then the thus obtained mixture in a second step with at least one compound (II), selected from the group, consisting of an amino carboxylic acid, a carboxylic acid, a hydroxy carboxylic acid, a hydroxy carboxylic acid lactone, a sulfamic acid, an amino sulfonic acid, a polyhydroxy carboxylic acid and a polyhydroxy carboxylic acid lactone, and then making alkaline the obtained resin solution by adding at least one basic compound (III).
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: February 26, 1985
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventors: Theodor A. Burge, Jurg Widmer, Theodor Meyer, Ulrich Sulser
  • Patent number: 4490495
    Abstract: A solution for coating plastic material for tinting and the method of making said solution is described. The process for coating plastic material and for tinting the material is also described. This solution and process provides scratch resistance to the surface of the coated polycarbonate and CR-39 lenses, absorbs dye and permits the plastics to absorb the dye and adheres strongly to the plastic surface.
    Type: Grant
    Filed: November 15, 1982
    Date of Patent: December 25, 1984
    Assignee: Techsight Corp.
    Inventor: Hermann Weber
  • Patent number: 4482699
    Abstract: Process for preparing a urea-formaldehyde resin in an aqueous formulation particularly intended for use as a particleboard binder. The resin cures to be low emitting. In the cured state, the resin has more than twice as many methylene groups as methylene ether groups, and generally is characterized by residual formaldehyde that is at least 40% and often 50% less than that of a cured resin of the same F/U mole ratio but produced by an initial base catalyzed methylolation procedure of which the primary prepolymer products are mostly monomethylol and dimethylol urea precursors, followed by condensation.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: November 13, 1984
    Assignee: Borden, Inc.
    Inventor: James H. Williams
  • Patent number: 4481116
    Abstract: A novel cationic aminoplastic water-dispersible resin based on melamine, formaldehyde and glyoxal salified by a mineral or organic protonic acid, or by a mixture of such acids, selected from the group comprising hydrochloric, nitric, orthophosphoric, acetic, formic acids; it contains molar ratios, for 1 mole of melamine, of 2 to 4 moles of formaldehyde, 0.1 to 3 moles of glyoxal and 0.5 to 1 mole of mineral or organic protonic acid, or the equivalent quantity of a mixture thereof.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: November 6, 1984
    Assignee: Societe Francaise Hoechst
    Inventors: Jean Cabestany, Claude Trouve
  • Patent number: 4480068
    Abstract: A phenol-formaldehyde resol to which urea has been added is mixed with a boric acid-hydroxyl-amide component to provide high temperature resistant binder compositions for use in the manufacture of thermally stable bonded mineral fibre insulation structures.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: October 30, 1984
    Assignee: Fiberglas Canada Inc.
    Inventors: Ruben A. Santos, William G. Kipp, Edwin J. MacPherson
  • Patent number: 4475918
    Abstract: Aftertreatment of dyeings on cotton or nylon with (A) a polybasic compound which is the product of reacting a primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and, sequentially or simultaneously (B) a precondensate formed by reacting a compound of type (A) with an N-methylol derivative gives wet fastness properties superior to those given by either (A) or (B) used alone.
    Type: Grant
    Filed: August 24, 1983
    Date of Patent: October 9, 1984
    Assignee: Sandoz Ltd.
    Inventors: Bruno Kissling, Tibor Robinson
  • Patent number: 4474925
    Abstract: An improvement in a process for the preparation of neutralized urea aldehyde polmeric dispersions by acid catalyzed reaction of urea with formaldehyde plus a higher aldehyde having from two to four carbon atoms wherein the improvement comprises reacting urea with formaldehyde and a polyfunctional aldehyde selected from the group consisting of a dialdehyde of from 2 to 5 carbon atoms or a polymer of formaldehyde such as a hydroxyaldehyde or polysaccharide which has a reactive, reducible aldehyde group wherein the mole ratio of formaldehyde to the polyfunctional aldehyde is at least 3:1. The products are useful as long term, sprayable fertilizers, especially for grasses.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 2, 1984
    Assignee: W. A. Cleary Chemical Corporation
    Inventors: Paul Sartoretto, Prathivadibhayankaram S. Sampathkumar
  • Patent number: 4468495
    Abstract: Fire retardant compositions in the form of a powder are produced from the following components:______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-110 Ammonium phosphate 120-180 Ammonium sulfate 120-180 Urea 120-180 Alkanolamine 35-50 Phosphoric acid 100-150 ______________________________________Also provided are fire retardant compositions containing the powder, and methods for treating substrates such as paper or wood to impart fire retardant properties thereto.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: August 28, 1984
    Inventor: Glenn A. Pearson
  • Patent number: 4464505
    Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a mixture of a reaction product between (a) at least one alkylenediamine or polyalkylenepolyamine and (b) epihalohydrin, and (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, or containing these reaction products.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: August 7, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shigenao Kawakami, Terumasa Saka, Shigeru Ura, Mikio Iwata, Yoshiharu Tokugawa, Naoyoshi Jinno
  • Patent number: 4454264
    Abstract: Paint coating material capable of cathodic deposition based on a vehicle mixture that has been made water-thinnable with acid and optionally customary additives, wherein said vehicle contains in combination(A) from 50 to 90% by weight of a polymer and/or polycondensate containing tertiary amino-groups and OH groups and having amine and hydroxy numbers of from 30 to 170 and 30 to 300 respectively;(B) from 5 to 40% by weight of a fully blocked polyisocyanate which is stable in the aqueous phase and becomes reactive again under the influence of heat, after dissociation of the blocking group; and(C) from 0 to 30% by weight of polymer and/or polycondensate containing primary and/or secondary OH- and/or amino-groups.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: June 12, 1984
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Hans-Peter Patzschke, Armin Gobel
  • Patent number: 4452934
    Abstract: Aminoplast resin compositions formed by reaction of an amino-aldehyde precursor in the presence of a cationic surfactant and a hydrocarbon product consisting essentially of components having average carbon chain lengths of about 12 or higher are provided. The aminoplast resin compositions have particular applicability as softening agents for paper and other cellulosic products.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: June 5, 1984
    Assignee: Georgia-Pacific Corporation
    Inventor: John H. Swafford
  • Patent number: 4444943
    Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a thermosetting resin in aqueous solution, obtained by reacting or mixing (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, (a) at least one alkylenediamine or polyalkylenepolyamine, and (b) epihalohydrin, or the reaction product between (Y) and (b) with (a).
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: April 24, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shigenao Kawakami, Terumasa Saka, Hisao Takagishi, Shigeru Ura, Mikio Iwata
  • Patent number: 4444945
    Abstract: Low-salt containing aqueous solutions of melamine formaldehyde condensation products having anionic sulfo groups are prepared in a two stage process. In the first stage melamine, formaldehyde, and bisulfite are condensed in an aqueous solution at atmospheric reflux and pH 8-10 for 1-5 hours. In the second stage, condensation is continued at pH 6-7 and atmospheric reflux for 2-6 hours. The product is cooled and adjusted to pH 7-9.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: April 24, 1984
    Assignee: Monsanto Company
    Inventor: George E. Sheldrick
  • Patent number: 4439575
    Abstract: Aqueous varnishes containing mineral fillers and/or pigments are prepared by allowing a hot wax emulsion in water at between 80.degree. C. and 100.degree. C. to flow with vigorous stirring into the aqueous varnish containing mineral fillers and/or pigments and to cover at least some of the filler and/or pigment particles with a wax coating. These varnishes show virtually no sedimentation of the solid constituents.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 27, 1984
    Assignee: BASF Farben + Fasern AG
    Inventor: Gunther Schwarz
  • Patent number: 4430469
    Abstract: Highly concentrated aqueous solutions of low viscosity of melamine/aldehyde resins are obtained by reacting to a precondensate in a first step melamine and an aldehyde in an alkaline medium and in the presence of water together with at least one compound (I), selected from the group, consisting of an alkali sulfite, an alkaline earth sulfite, an amino sulfonic acid, an amino carboxylic acid, a hydroxycarboxylic acid, a hydroxycarboxylic acid lactone, and a polyhydroxy carboxylic acid lactone, reacting then the thus obtained mixture in a second step with at least one compound (II), selected from the group, consisting of an amino carboxylic acid, a carboxylic acid, a hydroxy carboxylic acid, a hydroxy carboxylic acid lactone, a sulfamic acid, an amino sulfonic acid, a polyhydroxy carboxylic acid and a polyhydroxy carboxylic acid lactone, and then making alkaline the obtained resin solution by adding at least one basic compound (III).
    Type: Grant
    Filed: February 24, 1982
    Date of Patent: February 7, 1984
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventors: Theodor A. Burge, Jurg Widmer, Theodor Meyer, Ulrich Sulser
  • Patent number: 4429075
    Abstract: A cross-linked urea-formaldehyde polymer matrix is formed by catalyzing, using a buffered acid as the catalyst, an aqueous mixture of a urea-formaldehyde concentrate, urea-formaldehyde resin, and powdered urea. The resulting thermoset polymer which possesses, in part, a cyclic structure, is of unusual hardness and has utility, with or without fillers, as a molding or casting material possessing controllable shrinkage characteristics because of uniform molecular structure and formula versatility.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: January 31, 1984
    Assignee: Chem-Nuclear Systems, Inc.
    Inventor: John E. Carlson
  • Patent number: 4417022
    Abstract: Coating compositions capable of liquid application to substrates consist essentially of a curable film forming polyol-containing component and an organic reactive diluent. The reactive diluent is an organic compound containing a primary or secondary hydroxyl group and further characterized by having a retained solids value of greater than about 80 percent, a hydroxyl equivalent weight of from about 180 to about 800, and a liquid viscosity of less than about 10 poise at 60.degree. C. The coating compositions can be formulated to contain little or no volatile organic solvent and/or water.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: November 22, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, James B. O'Dwyer, John R. Peffer
  • Patent number: 4410685
    Abstract: A process for preparing a urea-formaldehyde base resin having a F/U molar ratio of 1.0:1-1.2:1, that is hydrolytically stable, which comprises adjusting a formaldehyde solution to a pH of 0.5-2.5, slowly charging urea to said formaldehyde solution while maintaining the temperature at 40.degree.-70.degree. C., neutralizing the reaction mixture after obtaining a Gardner viscosity in the range of T+-V+, then adding the final charge of urea and permitting equilibration.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: October 18, 1983
    Assignee: Borden, Inc.
    Inventor: James H. Williams
  • Patent number: 4410652
    Abstract: The wet fastness of direct dyes on cellulose substrates is improved by after-treatment with the reaction product of an amine with cyanamide, dicyanodiamide, guanidine or biguanidine which is further reacted with an N-methylol resin precursor, and heat curing in the presence of a catalyst. The unfixed portion of reactive dyes substantive to cellulose may also be given improved wet fastness by this treatment, so that washing to remove unfixed reactive dye may not be necessary.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: October 18, 1983
    Assignee: Sandoz Ltd.
    Inventors: Tibor Robinson, Walter Knobel, Bruno Kissling
  • Patent number: 4409293
    Abstract: A process for bonding lignocellulosic material under heat and pressure, where the bonded lignocellulosic material is characterized by a low emission of formaldehyde, which comprises applying a binder to said lignocellulosic material, said binder comprising a urea-formaldehyde base resin having a ratio of formaldehyde to urea of 1.0:1-1.2:1, said base resin having essentially no free formaldehyde and said base resin when cured containing substantially more methylene groups than methylene ether groups, consolidating said lignocellulosic material and curing the binder.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: October 11, 1983
    Assignee: Borden, Inc.
    Inventor: James H. Williams
  • Patent number: 4407999
    Abstract: Water-repellent adhesive composition for wooden material which consists essentially of a paraffin emulsion and a resin material selected from the group consisting of urea resin, urea-melamine resin, and phenol resin, wherein said paraffin emulsion contains oxidized paraffin.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: October 4, 1983
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeshi Fushiki, Tohru Tagawa, Satoru Kawakami
  • Patent number: 4405751
    Abstract: Aminoplastic resin dispersions which are stable to sedimentation are obtained by condensation of aldehydes with aminoplastic resin formers in an aqueous medium, in the presence of water-soluble compounds of the formulaR--X--(A--O).sub.m --B--NHCONH--Y].sub.nhaving the substituent meanings mentioned in the description. The condensation is preferably carried out in the presence of dyestuffs or optical brighteners which have groups capable of condensation. The dispersions obtained thereby are particularly suitable for whitening the coating compositions used in the paper industry, and for coating paper, wood, films and textile materials.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: September 20, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns P. Muller, Kuno Wagner, Peter Mummenhoff, Gottfried Wallpott, Karlheinz Scheuss
  • Patent number: 4404298
    Abstract: Nitrocellulose/polyester or alkyd resin dispersions having a high pot life and low requirement for coalescing agent may be prepared with the aid of water-insoluble aminoplast resins if care is taken to ensure that a mixture of these components is present within the particles of the disperse phase.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: September 13, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Traenckner, Wolfgang Kremer
  • Patent number: 4396732
    Abstract: An amine resin soluble in water with the aid of an acid is produced by reacting a dihydric phenolic compound, such as a bisphenol, with a stoichiometric deficiency of preferably aromatic diepoxide, and then reacting the product containing less than -0.3 part of unreacted dihydric phenolic compound per part of reaction product with at least about 3.25 mol of formaldehyde per mol of said reaction product and with monosecondary amine to produce a Mannich base. This Mannich base is then reacted with additional diepoxide in an amount of from 0.5 to 2 epoxy equivalents per epoxy equivalent in the initially used diepoxide.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: August 2, 1983
    Assignee: DeSoto, Inc.
    Inventors: Kazys Sekmakas, Raj Shah
  • Patent number: 4383077
    Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with urea and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: May 10, 1983
    Assignee: Hercules Incorporated
    Inventor: Ralph A. Bankert
  • Patent number: 4382129
    Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with acrylamide and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: May 3, 1983
    Assignee: Hercules Incorporated
    Inventor: Ralph A. Bankert
  • Patent number: 4381368
    Abstract: A process for preparing urea-formaldehyde resins is disclosed. The process involves reacting urea and formaldehyde at pH 4.5-5.5 at 90.degree. to 100.degree. C. at a mole ratio of 2.0:1 to 2.2:1 formaldehyde:urea, and adding additional urea under these conditions. The reaction mixture is then neutralized and cooled to 30.degree. to 50.degree. C.and additional urea is reacted. The reaction mixture is then cooled to from 40.degree. to 30.degree. C. and additional formaldehyde and urea added to bring the final mole ratio of formaldehyde:urea to from 1.05:1 to 1.15:1.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: April 26, 1983
    Inventor: Harold N. Spurlock
  • Patent number: 4380603
    Abstract: Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with epihalohydrin, condensing the reaction product with additional formaldehyde and then post-modifying the condensate with additional epihalohydrin or a nitrogen-containing compound. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: April 19, 1983
    Assignee: Hercules Incorporated
    Inventor: Ralph A. Bankert
  • Patent number: 4380602
    Abstract: Disclosed are novel water-souble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with epihalohydrin and then condensing the reaction product with additional formaldehyde. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: April 19, 1983
    Assignee: Hercules Incorporated
    Inventor: David H. Dumas
  • Patent number: 4376178
    Abstract: A stable polyol-alkali metal silicate emulsion is produced by mixing an aqueous solution of an alkali metal silicate or alkali metal metasilicate pentahydrate, a liquid polyol and a small amount of a salt of an alkali metal compound and a weak acid while heating the mixture to between 40.degree. C. and 100.degree. C. and agitating until the mixture emulsifies.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: March 8, 1983
    Inventor: David H. Blount
  • Patent number: 4370442
    Abstract: A method of preparing an aqueous resinous system, and the resinous system produced by the method is described wherein about 75-100 parts of an aldehyde such as formaldehyde, about 100-125 parts of phosphoric acid, about 15-25 parts of an alkanolamine such as triethanolamine, about 30-50 parts of urea, and about 20-40 parts of melamine, based on 100-200 parts of water, are reacted to provide an aqueous resinous solution which will cure at room temperature or upon application of heat, permitting its use as a flexible, pliable, waterproof, nonburning coating, especially for textiles and paper containing materials. The solution may be applied by impregnation or as a coating to the fabric or an underlayer to the fabric. In a special embodiment, there is provided a method for providing fire retardancy to a textile fabric applied over an underlayer such as muslin, by applying a fire retardant solution to the underlayer. There is also provided a fire retardant spray solution.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: January 25, 1983
    Inventor: Glenn A. Pearson
  • Patent number: 4369286
    Abstract: Modified aminoplast resins based on melamine and formaldehyde or urea and formaldehyde, which contain, as modifiers, methylolmelamines having a molar ratio of melamine to formaldehyde of 1:3 to 1:6, which are etherified with mono-alcohols having 1 to 4 carbon atoms, in a ratio of melamine to alcohol of 1:2 to 1:6. These resins are used, in particular, for the production of decorative, glossy-surface laminations.
    Type: Grant
    Filed: November 3, 1981
    Date of Patent: January 18, 1983
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Hubert Czepel, Friedl Heger, Wilhelm Dobramysl
  • Patent number: 4368289
    Abstract: A coating composition of polymers of a vinyl oxazoline drying oil ester which esters are made by a process which reacts drying oil fatty acids with tris (hydroxy methyl) amino methane to form an intermediate which is further reacted at about 175.degree.-190.degree. C. with a formaldehyde/alcohol solution to form the vinyl oxazoline drying oil ester; the improvement used with this process is the use of at least 3 moles of formaldehyde to one mole of intermediate and about 1-5% by weight, based on the weight of the intermediate, of methanol and adding after the reaction with formaldehyde about 5-25% by weight, based on the weight of the ester solution, of an alcohol, a ketone or a mixture of an alcohol and a ketone; the coating composition are aqueous and contain sufficient ammonia or amine to provide a pH of about 7.5-9.5.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: January 11, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Joseph A. Vasta
  • Patent number: 4346044
    Abstract: Air-drying alkyd resins which are in the form of neutralized semi-esters of hexahydrophthalic acid anhydride constitute an excellent basis for coatings which undergo virtually no yellowing and which, even when aged by heat, show a high constancy of color.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: August 24, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Jochen Schoeps, Rolf Kuchenmeister
  • Patent number: 4343925
    Abstract: Coating compositions capable of liquid application to substrates consist essentially of a curable film forming polyol-containing component and an organic reactive diluent. The reactive diluent is an organic compound containing a primary or secondary hydroxyl group and further characterized by having a retained solids value of greater than about 80 percent, a hydroxyl equivalent weight of from about 180 to about 800, and a liquid viscosity of less than about 10 poise at 60.degree. C. The coating compositions can be formulated to contain little or no volatile organic solvent and/or water.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: August 10, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, James B. O'Dwyer, John R. Peffer
  • Patent number: 4341677
    Abstract: Oil-in-water emulsions of antioxidants having low volatility and good thermal resistance are provided for treating fibrous reinforcements such as glass fibers. The emulsions are comprised of the antioxidant in an amount of about 5 to about 60 weight percent of the emulsion along with an organic solvent that has a boiling point above the temperature of use or of preparation and is compatible with the antioxidant in an amount in a ratio of about 0.5 to about 1.5 with the antioxidant and one or more emulsifiers selected from the group consisting of anionic, and nonionic having a combined HLB (hydrophilic/lipophilic balance) in the range of about 12 to about 27. The emulsion can also contain a resin carrier such as an epoxy resin and/or a stabilizing agent such as polyalkylene polyol.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: July 27, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Albert E. Tamosauskas
  • Patent number: 4336342
    Abstract: Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: June 22, 1982
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Dunnavant, Young D. Kim
  • Patent number: 4328143
    Abstract: An aqueous coating composition for formation of a coating film having high corrosion-resistance on a metal substrate which comprises (a) a film-forming polymeric material having at least one hydroxyl group and/or at least one carboxyl group, (b) a zwitter-ion compound and (c) an aminoplast resin and/or an epoxy resin with or without (d) a surface active agent having a hydrophilic functional group and at least one hydroxyl group and/or at least one carboxyl group.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: May 4, 1982
    Assignee: Nippon Paint Company, Ltd.
    Inventors: Minao Izumi, Tamotsu Sobata, Shinichi Ishikura, Keizou Ishii