Patents by Inventor Raymond F. Schappert
Raymond F. Schappert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4822683Abstract: A method of forming an adhesive bond between two surfaces to form a bonded structure involves the stepsI. applying to at least one of the surfaces a curable composition containing:(i) one or more epoxide group containing materials containing at least two epoxide groups per molecule;(ii) a positive amount of an effectively thermoplastic polyester, which does not react into the curable composition and is present as a blended ingredient, which does not exceed 40 percent by weight based on the total weight of the epoxide and polyester components of the composition, said polyester having a weight average molecular weight from about 1,000 to about 8,000, being nonreactive with the one or more epoxide group containing materials of (a) and being insoluble in the one or more epoxide group containing materials of (i); and(iii) a curing agent adapted to cure the epoxide group containing materials of (i); andII. at least partially curing the curable composition to form the bonded structure.Type: GrantFiled: November 6, 1987Date of Patent: April 18, 1989Assignee: PPG Industries, Inc.Inventors: Raymond F. Schappert, Robert M. Piccirilli
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Patent number: 4739019Abstract: A curable composition is composed of(a) one or more epoxide group containing materials containing at least two epoxide groups per molecule;(b) a positive amount of an effectively thermoplastic polyester, which does not react into the curable composition and is present as a blended ingredient, which does not exceed 40 percent by weight based on the total weight of the epoxide and polyester components of the composition, said polyester having a weight average molecular weight of from about 1,000 to about 8,000, being non-reactive with the one or more epoxide group containing materials and being insoluble in the one or more epoxide group containing materials of (a); and(c) a curing agent adapted to cure the one or more epoxide group containing materials of (a).Type: GrantFiled: December 8, 1986Date of Patent: April 19, 1988Assignee: PPG Industries, Inc.Inventors: Raymond F. Schappert, Robert M. Piccirilli
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Patent number: 4721751Abstract: A polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound is prepared by a process which comprises reacting a polyisocyanate, at least a portion of which is a diisocyanate, with a polyfunctional amine containing primary and/or secondary amino groups in the presence of:(a) a polyol, at least a portion of which is a polymeric polyol containing ethylenic unsaturation and having a carbon to oxygen ratio of at least 4/1;(b) a diluent which is an ethylenically unsaturated compound free of active hydrogens; and(c) an active hydrogen containing polymerizable ethylenically unsaturated compound; under conditions sufficient to form a polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound.The aforedescribed urea urethane polymer dispersions are particularly useful in formulating curable compositions suitable for use as adhesives and sealants.Type: GrantFiled: March 26, 1987Date of Patent: January 26, 1988Assignee: PPG Industries, Inc.Inventors: Raymond F. Schappert, Joseph M. Makhlouf, Michael M. Chau
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Patent number: 4680204Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles stably dispersed in the basecoating composition, (3) a solvent system for the film-forming resin, and (4) pigment particles to form a basecoat; and (B) coating the basecoat with one or more applications of a topcoating composition containing (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: June 27, 1986Date of Patent: July 14, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4677004Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles stably dispersed in the basecoating composition, (3) a solvent system for the film-forming resin, and (4) pigment particles to form a basecoat; and (B) coating the basecoat with one or more applications of a topcoating composition containing (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: October 2, 1985Date of Patent: June 30, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4652470Abstract: Disclosed is a method of coating a substrate comprising the steps of (A) coating the substrate with one or more applications of a basecoating composition containing (1) an organic film-forming resin, (2) substantially colorless, substantially inorganic microparticles stably dispersed in the basecoating composition, (3) a solvent system for the film-forming resin, and (4) pigment particles to form a basecoat; and (B) coating the basecoat with one or more applications of a topcoating composition containing (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat. The substantially inorganic microparticles prior to incorporation in the basecoating composition range in size from about 1 to about 150 nanometers.Type: GrantFiled: March 21, 1986Date of Patent: March 24, 1987Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
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Patent number: 4652492Abstract: A curable composition which contains polyepoxide and amine curing agent free of amide groups and which is of a substantially lower viscosity than the polyepoxide is improved by thickening the amine to a viscosity comparable to that of the polyepoxide. The amine is thickened by either incorporating into the amine curing agent a polyamide in an amount not exceeding 35 percent by weight based on the amount of amine curing agent of a polyamide; or converting a portion of the amine curing agent to polyamide by in situ chain extension to form amide groups wherein the chain extension is carried out in an excess of amine curing agent before the amine curing agent is admixed with the polyepoxide component of the curable composition; or a combination thereof.Type: GrantFiled: April 11, 1985Date of Patent: March 24, 1987Assignee: PPG Industries, Inc.Inventors: Jerome A. Seiner, Raymond F. Schappert
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Patent number: 4526910Abstract: Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The substantially inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which the surface of the inorganic microparticles is essentially free of carbon-containing molecules chemically bonded to the inorganic microparticles.Type: GrantFiled: September 6, 1983Date of Patent: July 2, 1985Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Paul P. Greigger, William G. Boberski, James E. Jones, Raymond F. Schappert, Jerome A. Seiner
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Patent number: 4522958Abstract: Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which carbon-containing molecules are chemically bonded to the inorganic microparticles at the surface of the microparticles.Type: GrantFiled: September 6, 1983Date of Patent: June 11, 1985Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, William G. Boberski, Paul P. Greigger, James E. Jones, Raymond F. Schappert, Jerome A. Seiner