Patents by Inventor Robson Mafoti
Robson Mafoti 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).
-
Patent number: 7064162Abstract: Improved sealant compositions and processes for producing sealant are described. The processes include contacting in a reactor under reaction conditions a polymer containing at least one vinyl, acrylate, or methacrylate monomer and at least one silane comonomer, at least one polymer capping agent, a catalyst and a reactive diluent. Sealant compositions are also described. The compositions include a polymer containing at least one vinyl, acrylate or methacrylate monomer and at least one silane comonomer, at least one silane component, a catalyst and a reactive diluent.Type: GrantFiled: February 28, 2002Date of Patent: June 20, 2006Inventors: Robson Mafoti, Brian L. Damschroder, Larry R. Barron
-
Patent number: 6896971Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate. The kraft sheet thus coated may be used to form a laminate panel.Type: GrantFiled: June 24, 2003Date of Patent: May 24, 2005Assignee: Premark RWP Holdings, Inc.Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
-
Patent number: 6887584Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing characteristics desirable in the manufacturing process to one side of the laminate material and applying a substance providing characteristics desirable in the end product to the other side of the laminate material. For example, a release agent may be applied on one side of a kraft paper sheet and phenolic resin on the other side, thereby eliminating the need to use release sheets in the manufacture of laminates. The kraft sheet thus coated may be used in a laminate product.Type: GrantFiled: June 24, 2003Date of Patent: May 3, 2005Assignee: Premark RWP Holdings, Inc.Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
-
Publication number: 20040236009Abstract: The present invention includes compositions of, and methods for creating, adhesive and sealant materials that offer reduced densities and costs without substantially affecting the adhesive properties associated with the materials.Type: ApplicationFiled: May 23, 2003Publication date: November 25, 2004Inventors: Robson Mafoti, Yuduo Zhu
-
Publication number: 20040011451Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate. The kraft sheet thus coated may be used to form a laminate panel.Type: ApplicationFiled: June 24, 2003Publication date: January 22, 2004Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
-
Publication number: 20030232134Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing characteristics desirable in the manufacturing process to one side of the laminate material and applying a substance providing characteristics desirable in the end product to the other side of the laminate material. For example, a release agent may be applied on one side of a kraft paper sheet and phenolic resin on the other side, thereby eliminating the need to use release sheets in the manufacture of laminates. The kraft sheet thus coated may be used in a laminate product.Type: ApplicationFiled: June 24, 2003Publication date: December 18, 2003Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
-
Patent number: 6610358Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a similar or different substance. Reverse roll coating may be used to coat the two surfaces of the sheet of laminate material. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate.Type: GrantFiled: March 12, 1999Date of Patent: August 26, 2003Assignee: Premark RWP Holdings, Inc.Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
-
Publication number: 20020156174Abstract: Improved sealant compositions and processes for producing sealant are described. The processes include contacting in a reactor under reaction conditions a polymer containing at least one vinyl, acrylate, or methacrylate monomer and at least one silane comonomer, at least one polymer capping agent, a catalyst and a reactive diluent. Sealant compositions are also described. The compositions include a polymer containing at least one vinyl, acrylate or methacrylate monomer and at least one silane comonomer, at least one silane component, a catalyst and a reactive diluent.Type: ApplicationFiled: February 28, 2002Publication date: October 24, 2002Inventors: Robson Mafoti, Brian L. Damschroder, Larry R. Barron
-
Patent number: 6139945Abstract: A polymeric foam composition is provided for use as a substrate in decorative compositions having at least one decorative layer on the substrate, wherein the substrate is prepared by foaming a composition made of (i) a resin matrix of one or more polymers selected from acrylonitrile-butadiene-styrene (ABS) polymers, polycarbonates, polystyrenes, polyphenylene oxide and polyvinyl chloride polymers, preferably obtained from recycled plastics, and (ii) a filler, using one or more blowing agents. The resulting foam composition has physical and mechanical properties sufficient for its use in place of fiberboard or particle board in the preparation of various laminate based decorative products, such as laminate flooring, solid surface laminates, countertops, etc.Type: GrantFiled: November 25, 1997Date of Patent: October 31, 2000Assignee: Premark RWP Holdings, Inc.Inventors: Mark Krejchi, Robson Mafoti, Tony Oriseh, Jim Gonzales, Mike Ingrim
-
Patent number: 5856413Abstract: A thermoplastic molding composition comprising polycarbonate and a comples ester are disclosed. The ester which conforms to ##STR1## wherein p is an integer of 2 to 8, q is an integer of 7 to 13 and R and R' independently denote a C.sub.x H.sub.2x+1 -group, where x is an integer of 8 to 24, with the proviso that R is linear, was found to impart to the composition excellent mold filling and release properties.Type: GrantFiled: June 24, 1997Date of Patent: January 5, 1999Assignee: Bayer CorporationInventors: John J. Charles, Charles E. Lundy, Robson Mafoti
-
Patent number: 5804618Abstract: Polyvinyl acetate emulsion based adhesives can be made effective for bonding melamine formaldehyde resin treated decorative solid color and print paper to particle board. This polyvinyl acetate emulsion based adhesive is formulated with tackified polyvinyl alcohol, starch, a tackifier and a coupling agent. Stress cracking is substantially eliminated. Additionally, wrinkling and edge and corner peel resulting during the movement of sheets of melamine resin treated paper on the top and bottom surfaces of sheets of particle board through a heating and pressing zone is substantially eliminated.Type: GrantFiled: October 31, 1996Date of Patent: September 8, 1998Assignee: Premark RWP Holdings, Inc.Inventors: Robson Mafoti, Tien-Chieh Chao
-
Patent number: 5654085Abstract: The present invention relates to a method for adhering two or more substrates by(1) applying to a surface of one of said substrates a non-sagging polyurea adhesive composition comprising the reaction product of:(a) a polyphenyl polymethylene polyisocyanate or a urea-modified prepolymer thereof and(b) an isocyanate-reactive component comprising amines consisting essentially of(i) an aminocrotonate-terminated polyether containing at least two secondary amino groups prepared by reaction of a polyfunctional acetoacetylated polyether polyol with a primary monoamine, and(ii) a low molecular weight aromatic and/or aliphatic diamine, and(2) contacting said substrate with a surface of a second substrate, and(3) curing the polyurea adhesive composition.Type: GrantFiled: February 20, 1996Date of Patent: August 5, 1997Assignee: Bayer CorporationInventors: Peter H. Markusch, Jeffrey A. Dodge, Robson Mafoti
-
Patent number: 5614605Abstract: This invention relates to rigid polyurethanes prepared by reaction, at an isocyanate index of 95 to 110, of(a) an allophanate-modified aliphatic and/or cycloaliphatic polyisocyanurate;(b) 20 to 100% by weight, relative to the total of components (b) and (c), of(i) one or more polyether and/or polyester polyols containing three or more isocyanate-reactive hydroxyl groups and having a molecular weight of 200 to 6000, and(ii) 0 to 30% by weight, relative to component (b)(i), of one or more isocyanate-reactive compounds other than a polyether or polyester of component (b)(i) and containing two or more isocyanate-reactive hydroxyl groups and having a molecular weight of about 400 to about 10,000,(c) 0 to 30% by weight, relative to the total of components (b) and (c), of a chain extender and/or crosslinker other than a polyether or polyester and having a molecular weight of from 32 to 399, wherein the amounts of components (b) and (c) total 100% by weight.Type: GrantFiled: December 19, 1994Date of Patent: March 25, 1997Assignee: Bayer CorporationInventors: Robson Mafoti, William E. Slack
-
Patent number: 5596034Abstract: A thermoplastic molding composition having improved release properties is disclosed. The composition contains a polycarbonate resin and a mold release agent which is an ester conforming structurally to ##STR1## where R is a member selected from the group consisting of glyceryl, trimethylol propyl and pentaerythrityl radicals, m is 2 to 4, R' is a C.sub.8-20 hydrocarbon radical having a pendant alkyl group, and R" is the esterification residue of a C.sub.1-24 aliphatic or an aromatic carboxylic acid.Type: GrantFiled: September 7, 1995Date of Patent: January 21, 1997Assignee: Bayer CorporationInventors: Sivaram Krishnan, James B. Johnson, Robson Mafoti
-
Patent number: 5516872Abstract: This invention relates to a process for preparing polyurethane elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an isocyanate prepolymer having an isocyanate content of about 2 to about 15% by weight and a molecular weight of from about 500 to about 5000 prepared by reaction of(i) at least one organic polyisocyanate with(ii) at least one isocyanate-reactive compound having at least two isocyanate-reactive groups and a molecular weight of from about 250 to about 4000;with(b) certain aminocrotonate-terminated polyethers having a molecular weight of from about 500 to about 1500;(c) optional chain extenders and/or crosslinkers other than aminocrotonate-terminated polyether (b); and(d) optional auxiliaries and/or additives.Type: GrantFiled: July 5, 1994Date of Patent: May 14, 1996Assignee: Bayer CorporationInventors: Robson Mafoti, Alan D. Bushmire
-
Patent number: 5473044Abstract: This invention relates to a process for the production of a polyurethane molded part from a reaction injection molding process. The reaction mixture comprises:A) an isocyanate distillation residue resulting from the production of 1,6-hexamethylenediisocyanate by phosgenation of the corresponding amine, followed by the distillation of the pure 1,6-hexamethylenediisocyanate to yield said residue, wherein said residue has an NCO content of from 20 to 27%, a viscosity of from 1500 to 5000 cps at 25.degree. C., and from 0.1 to 3% by weight of hydrolyzable chlorides; withB) an isocyanate-reactive component comprising at least one organic compound having a molecular weight of from 500 to 10,000 and containing at least two isocyanate-reactive hydroxyl groups, and at least one organic diol having a molecular weight of from about 62 to 500,in the presence ofC) a specific catalyst mixture.Type: GrantFiled: April 21, 1995Date of Patent: December 5, 1995Assignee: Bayer CorporationInventors: Robson Mafoti, David D. Steppan
-
Patent number: 5464920Abstract: This invention relates to a process for the preparation of cast elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an organic polyisocyanate;(b) an aminocrotonate-terminated polyether having a molecular weight of from about 1200 to about 6500 and having the formula ##STR1## wherein A is the m-functional group left by the removal of the hydroxyl groups of a polyether polyol having a number average molecular weight of from 1000 to 6000,R is the difunctional residue of certain aromatic diamines having the formula H.sub.2 N--R--NH.sub.2 such that each free --NH.sub.2 group of the aminocrotonate-terminated polyether has a moderated reactivity toward the organic polyisocyanate, as indicated by a gel time of about 60 to about 300 seconds (measured at 90.degree.-110.degree. C.Type: GrantFiled: December 6, 1994Date of Patent: November 7, 1995Assignee: Bayer CorporationInventors: Robson Mafoti, Alan D. Bushmire
-
Patent number: 5428124Abstract: Storage stable, liquid prepolymers of diphenylmethane diisocyanate containing urea and/or biuret groups are prepared by reacting an aminocrotonate with a mixture of isocyanates having a specified diphenylmethane diisocyanate isomer content. These prepolymers have isocyanate group contents of from about 5 to about 30%.Type: GrantFiled: May 23, 1994Date of Patent: June 27, 1995Assignee: Miles Inc.Inventors: William E. Slack, Robert P. Yeater, Robson Mafoti, Josef Sanders
-
Patent number: 5407596Abstract: Sucrose-based polyether polyols which do not promote degradation of HCFC blowing agents are produced by blocking at least 10% of the polyol's hydroxyl groups with a compound represented by the formula CH.sub.3 COCH.sub.2 COOR in which R represents an alkyl group. These polyether polyols are particularly useful in the production of polyurethane foams.Type: GrantFiled: May 12, 1994Date of Patent: April 18, 1995Assignee: Miles Inc.Inventors: Robson Mafoti, Richard E. Keegan, Steven L. Schilling
-
Patent number: 5324773Abstract: Products made using the RIM process where the reaction mixture contains an acidic release agent have improved green strength when the reaction mixture also contains a peralkylated polyalkylene polyamine.Type: GrantFiled: December 1, 1993Date of Patent: June 28, 1994Assignee: Miles Inc.Inventors: Robson Mafoti, David D. Steppan, Michael F. Hurley, Albert Magnotta