Patents by Inventor David S. Cobbledick
David S. Cobbledick 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: 5993906Abstract: A liquid thermoset coating is described for application on and near surfaces of molded plastic parts where the resin rich phase has been disturbed or imperfectly formed. The coating has been found to be effective at minimizing paint pops and craters in subsequent finish coatings on said parts. Said paint pops and craters develop during heated cure cycles for the finish coatings. The coating which is applied to the heated part and subsequently cured is preferably an epoxy composition of low viscosity. The molded plastic parts are preferably fiber reinforced thermoset polyester parts with an in-mold coating to improve surface quality.Type: GrantFiled: June 23, 1993Date of Patent: November 30, 1999Assignee: Cambridge Industries, Inc.Inventors: Robert W. Smith, David S. Cobbledick, Charles M. Kausch, Donald F. Reichenbach, Satish C. Sharma, Richard Simmons
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Patent number: 5777053Abstract: An in-mold coating composition for a fiber reinforced plastic comprises an aliphatic resin such as a saturated aliphatic ester intermediate polyurethane having terminal acrylate end groups, a saturated (cyclo)aliphatic (meth)acrylate such as isobornyl acrylate, a hydroxyl alkyl (meth)acrylate, a polyacrylate ester of an alkylene polyol, and a vinyl substituted aromatic. The in-mold coating compositions have good end use weather-resistant properties so that there is no need for a subsequent paint coat thereon which heretofore has been required. The paint-free coating compositions can be either clear or pigmented and can contain various additives such as lubricants, adhesion aids, hardeners, and the like.Type: GrantFiled: January 17, 1997Date of Patent: July 7, 1998Assignee: GenCorp Inc.Inventors: Douglas S. McBain, David S. Cobbledick, Henry Shanoski, Brian J. Sullivan
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Patent number: 5614581Abstract: A thermosetting in-mold coating for molded fiber-reinforced plastic parts is disclosed. The binder for the thermosetting coating is comprised of least one polymerizable epoxy-based oligomer having at least two acrylate groups and at least one copolymerizable ethylenically unsaturated monomer. The coating includes graphite and titanium dioxide which results in the gray color. The coating composition has good flow and coverage during molding, good adhesion, uniform color, good surface quality, and good paintability. The coating composition includes enough carbon black so that a 1.0 mil thick coating has a Ransburg conductivity meter reading of at least 165 units.Type: GrantFiled: October 18, 1995Date of Patent: March 25, 1997Assignee: GenCorp Inc.Inventors: David S. Cobbledick, Donald F. Reichenbach
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Patent number: 5599630Abstract: A liquid thermoset coating is described for application on and near surfaces of molded plastic parts where the resin rich phase has been disturbed or imperfectly formed. The coating has been found to be effective at minimizing paint pops and craters in subsequent finish coatings on said parts. Said paint pops and craters develop during heated cure cycles for the finish coatings. The coating which is applied to the heated part and subsequently cured is preferably an epoxy composition of low viscosity. The molded plastic parts are preferably fiber reinforced thermoset polyester parts with an in-mold coating to improve surface quality.Type: GrantFiled: June 5, 1995Date of Patent: February 4, 1997Inventors: Robert W. Smith, David S. Cobbledick, Charles M. Kausch, Donald F. Reichenbach, Satish C. Sharma, Richard Simmons
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Patent number: 5391399Abstract: A fiber glass reinforced plastic can be in-mold coated utilizing a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, and other conventional components such as at least one zinc salt of a fatty acid, at least one accelerator, at least one filler, and the like. The thermosetting compositions of the present invention utilize a very low or nil amount of an adhesion agent such as a polyvinyl acetate and unexpectedly achieves better flow and good coverage at reduced coating weights.Type: GrantFiled: June 9, 1994Date of Patent: February 21, 1995Assignee: GenCorp Inc.Inventors: David S. Cobbledick, Donald F. Reichenbach, Brian Sullivan, Robert L. Spencer
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Patent number: 5359002Abstract: A fiber glass reinforced plastic can be in-mold coated utilizing a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, and other conventional components such as at least one zinc salt of a fatty acid, at least one accelerator, at least one filler, and the like. The thermosetting compositions of the present invention utilize a very low or nil amount of an adhesion agent such as a polyvinyl acetate and unexpectedly achieves better flow and good coverage at reduced coating weights.Type: GrantFiled: September 13, 1993Date of Patent: October 25, 1994Assignee: GenCorp Inc.Inventors: David S. Cobbledick, Donald F. Reichenbach, Brian Sullivan, Robert L. Spencer
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Patent number: 5132052Abstract: The cure rate or time of an in-mold coating composition is greatly enhanced by the use of a minor component by weight of a catalyst or initiator in the in-mold composition comprising essentially t-butyl peroxyisobutyrate.Type: GrantFiled: March 20, 1991Date of Patent: July 21, 1992Assignee: GenCorp Inc.Inventors: David S. Cobbledick, Donald F. Reichenbach, Brian J. Sullivan
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Patent number: 5084353Abstract: A fiber glass reinforced plastic can be in-mold coated utilizing a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH--and/or --OH group, and other conventional components such as at least one zinc salt of a fatty acid, at least one accelerator, at least one filler, and the like. The thermosetting compositions of the present invention utilize a very low or nil amount of an adhesion agent such as a polyvinyl acetate and unexpectedly achieves better flow and good coverage at reduced coating weights.Type: GrantFiled: May 12, 1989Date of Patent: January 28, 1992Assignee: GenCorp Inc.Inventors: David S. Cobbledick, Donald F. Reichenbach, Brian Sullivan, Robert L. Spencer
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Patent number: 4534888Abstract: An FRP molding can be in-mold coated using a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, polyvinyl acetate, at least one zinc salt of a fatty acid having at least 10 carbon atoms, at least one accelerator for a peroxide initiator, conductive carbon black, a filler such as talc and a copolymerizable or cocurable compound selected from the group consisting of(I) at least one polyoxyalkylene glycol oligomer having two acrylate groups and(II) at least one polyurethane oligomer having two acrylate groups and mixtures of (I) and (II).Optionally and desirably, there additionally can be added to the foregoing composition at least one calcium salt of a fatty acid.Type: GrantFiled: July 18, 1983Date of Patent: August 13, 1985Assignee: The General Tire & Rubber CompanyInventors: David S. Cobbledick, Donald F. Reichenbach, Henry Shanoski
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Patent number: 4515710Abstract: An FRP molding can be in-mold coated using a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, carboxylated polyvinyl acetate, at least one zinc salt of a fatty acid, at least one calcium salt of a fatty acid, at least one copolymerizable tri or tetra acrylate, at least one accelerator for a peroxide initiator, conductive carbon black, a filler such as talc and at least one polyoxyalkylene glycol oligomer having two acrylate groups.Type: GrantFiled: April 5, 1984Date of Patent: May 7, 1985Assignee: GenCorp Inc.Inventor: David S. Cobbledick
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Patent number: 4508785Abstract: An FRP molding can be in-mold coated using a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, polyvinyl acetate, at least one zinc salt of a fatty acid having at least 10 carbon atoms, at least one accelerator for a peroxide initiator, conductive carbon black, a filler such as talc and a copolymerizable or cocurable compound selected from the group consisting of(I) at least one polyoxyalkylene glycol oligomer having two acrylate groups and(II) at least one polyurethane oligomer having two acrylate groups and mixtures of (I) and (II).Optionally and desirably, there additionally can be added to the foregoing composition at least one calcium salt of a fatty acid.Type: GrantFiled: March 26, 1984Date of Patent: April 2, 1985Assignee: The General Tire & Rubber CompanyInventors: David S. Cobbledick, Donald F. Reichenbach, Henry Shanoski
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Patent number: 4414173Abstract: An FRP molding can be in-mold coated using a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a --CO-- group and a --NH.sub.2, --NH-- and/or --OH group, polyvinyl acetate, at least one zinc salt of a fatty acid having at least 10 carbon atoms, at least one accelerator for a peroxide initiator, conductive carbon black, a filler such as talc and a copolymerizable or cocurable compound selected from the group consisting of(I) at least one polyoxyalkylene glycol oligomer having two acrylate groups and(II) at least one polyurethane oligomer having two acrylate groups and mixtures of (I) and (II).Optionally and desirably, there additionally can be added to the foregoing composition at least one calcium salt of a fatty acid.Type: GrantFiled: October 25, 1982Date of Patent: November 8, 1983Assignee: The General Tire & Rubber CompanyInventors: David S. Cobbledick, Donald F. Reichenbach, Henry Shanoski
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Patent number: 4287309Abstract: Flexible or semiflexible low density polyetherurethane foams containing antimony trioxide, zinc oxide and a brominated diphenyl ether or oxide having from 4 to 10 bromine atoms exhibit good flame retardant properties and also exhibit good resistance to smoldering.Type: GrantFiled: July 2, 1980Date of Patent: September 1, 1981Assignee: The General Tire & Rubber CompanyInventor: David S. Cobbledick