Patents by Inventor Marietta B. Helmeke
Marietta B. Helmeke 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: 11725127Abstract: A hot melt moisture cure adhesive composition that includes a polyurethane prepolymer that includes the reaction product of diisocyanate, a polyester triol first polyol, a crystalline polyester second polyol, and a third polyol different from the first and second polyols.Type: GrantFiled: February 25, 2021Date of Patent: August 15, 2023Assignee: H.B. Fuller CompanyInventor: Marietta B. Helmeke
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Patent number: 11466186Abstract: A moisture curable hot melt sealant composition that includes a silane-modified polyurethane polymer that is free of isocyanate groups, a first rosin-based tackifying agent, a second tackifying agent different from the first rosin-based tackifying agent, a first ethylene vinyl acetate copolymer, a butene component having a weight average molecular weight from 30,000 g/mole to 700,000 g/mole and being selected from the group consisting of polyisobutylene, polyisobutene, polybutene, and combinations thereof; and filler.Type: GrantFiled: November 1, 2019Date of Patent: October 11, 2022Assignee: H.B. Fuller CompanyInventors: Marietta B Helmeke, Claudia Mosanu
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Publication number: 20210269687Abstract: A hot melt moisture cure adhesive composition that includes a polyurethane prepolymer that includes the reaction product of diisocyanate, a polyester triol first polyol, a crystalline polyester second polyol, and a third polyol different from the first and second polyols.Type: ApplicationFiled: February 25, 2021Publication date: September 2, 2021Inventor: Marietta B. Helmeke
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Patent number: 10968371Abstract: A moisture curable hot melt sealant composition that includes a silane-functional polyurethane that is free of isocyanate groups, a thermoplastic elastomer having a weight average molecular weight of at least 100,000 grams per mole and being derived from 0% by weight to no greater than 30% by weight styrene, based on the weight of the thermoplastic elastomer, the thermoplastic elastomer being selected from the group consisting of butyl rubber, ethylene-propylene rubber, ethylene-propylene diene rubber, thermoplastic polyolefin elastomer, styrene block copolymer, and combinations thereof, a first tackifying agent that includes from 0% by weight to less than 15% by weight aromaticity based on the weight of the tackifying agent, the first tackifying agent being selected from the group consisting of aliphatic tackifying agent, aromatic-modified aliphatic tackifying agent, cycloaliphatic tackifying agent, aromatic-modified cycloaliphatic tackifying agent, and combinations thereof, a liquid butene component selecteType: GrantFiled: November 1, 2019Date of Patent: April 6, 2021Assignee: H.B. Fuller CompanyInventors: Claudia Mosanu, Marietta B. Helmeke
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Publication number: 20200140730Abstract: A moisture curable hot melt sealant composition that includes a silane-modified polyurethane polymer that is free of isocyanate groups, a first rosin-based tackifying agent, a second tackifying agent different from the first rosin-based tackifying agent, a first ethylene vinyl acetate copolymer, a butene component having a weight average molecular weight from 30,000 g/mole to 700,000 g/mole and being selected from the group consisting of polyisobutylene, polyisobutene, polybutene, and combinations thereof; and filler.Type: ApplicationFiled: November 1, 2019Publication date: May 7, 2020Inventors: Marietta B. Helmeke, Claudia Mosanu
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Publication number: 20200140726Abstract: A moisture curable hot melt sealant composition that includes a silane-functional polyurethane that is free of isocyanate groups, a thermoplastic elastomer having a weight average molecular weight of at least 100,000 grams per mole and being derived from 0% by weight to no greater than 30% by weight styrene, based on the weight of the thermoplastic elastomer, the thermoplastic elastomer being selected from the group consisting of butyl rubber, ethylene-propylene rubber, ethylene-propylene diene rubber, thermoplastic polyolefin elastomer, styrene block copolymer, and combinations thereof, a first tackifying agent that includes from 0% by weight to less than 15% by weight aromaticity based on the weight of the tackifying agent, the first tackifying agent being selected from the group consisting of aliphatic tackifying agent, aromatic-modified aliphatic tackifying agent, cycloaliphatic tackifying agent, aromatic-modified cycloaliphatic tackifying agent, and combinations thereof, a liquid butene component selecteType: ApplicationFiled: November 1, 2019Publication date: May 7, 2020Inventors: Claudia Mosanu, Marietta B. Helmeke
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Patent number: 9605187Abstract: An adhesive composition that includes: one or more polyester polyether copolymers of formula I: wherein Nu is a predominately cyclic nucleus and RI is randomly selected from either a C2-6 alkylene or an amorphous, long-chain polyether subunit including a polyoxyalkylene group; one or more polyisocyanate prepolymers that includes the reaction product of: one or more polyols; and a polyfunctional isocyanate having a functionality of more than about 2; polymeric MDI; and a first aromatic or aromatic-aliphatic polymer tackifying resin having a softening point of equal to or greater than about 100° C.Type: GrantFiled: July 21, 2014Date of Patent: March 28, 2017Assignee: H.B. Fuller CompanyInventors: Marietta B. Helmeke, Jeffery G. Schmierer, Theresa Unze-Schmierer
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Publication number: 20140329097Abstract: An adhesive composition that includes: one or more polyester polyether copolymers of formula I: wherein Nu is a predominately cyclic nucleus and R1 is randomly selected from either a C2-6 alkylene or an amorphous, long-chain polyether subunit including a polyoxyalkylene group; one or more polyisocyanate prepolymers that includes the reaction product of: one or more polyols; and a polyfunctional isocyanate having a functionality of more than about 2; polymeric MDI; and a first aromatic or aromatic-aliphatic polymer tackifying resin having a softening point of equal to or greater than about 100° C.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Inventors: Marietta B. Helmeke, Jeffery G. Schmierer, Theresa Unze-Schmierer
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Patent number: 8822031Abstract: An adhesive composition that includes: one or more polyester polyether copolymers of formula I: wherein Nu is a predominately cyclic nucleus and R1 is randomly selected from either a C2-6 alkylene or an amorphous, long-chain polyether subunit including a polyoxyalkylene group; one or more polyisocyanate prepolymers that includes the reaction product of: one or more polyols; and a polyfunctional isocyanate having a functionality of more than about 2; polymeric MDI; and a first aromatic or aromatic-aliphatic polymer tackifying resin having a softening point of equal to or greater than about 100° C.Type: GrantFiled: May 10, 2012Date of Patent: September 2, 2014Assignee: H.B. Fuller CompanyInventors: Marietta B. Helmeke, Jeffrey G. Schmierer, Theresa Unze-Schmierer
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Publication number: 20120288720Abstract: An adhesive composition that includes: one or more polyester polyether copolymers of formula I: wherein Nu is a predominately cyclic nucleus and R1 is randomly selected from either a C2-6 alkylene or an amorphous, long-chain polyether subunit including a polyoxyalkylene group; one or more polyisocyanate prepolymers that includes the reaction product of: one or more polyols; and a polyfunctional isocyanate having a functionality of more than about 2; polymeric MDI; and a first aromatic or aromatic-aliphatic polymer tackifying resin having a softening point of equal to or greater than about 100° C.Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Applicant: H.B. Fuller CompanyInventors: Marietta B. Helmeke, Jeffrey G. Schmierer, Theresa Unze-Schmierer
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Patent number: 7344619Abstract: The invention relates to a method of making a water repellent laminate including applying a hot melt moisture cure adhesive to a primary substrate and bonding the primary substrate with a secondary substrate that has been treated with a water repellent material prior to the lamination. The adhesive composition includes a hot melt moisture cure polyurethane prepolymer formed from a polyol component and a polyisocyanate component. The polyol component includes a first polyether polyol having a number average molecular weight of from about 500 to about 8,000, a first polyester polyol having a melting point of less than about 40° C. or a second polyether polyol having a molecular weight of from about 200 to about 1,000, and a crystalline polyester polyol having a melting point of from about 40° C. to about 120° C.Type: GrantFiled: May 22, 2006Date of Patent: March 18, 2008Assignee: H.B. Fuller Licensing & Financing, IncInventor: Marietta B. Helmeke
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Patent number: 6844073Abstract: A hot melt moisture cure polyurethane adhesive composition includes at least one polyurethane prepolymer. The prepolymer includes the reaction product of a polyol component and a polyisocyanate component. The polyol component includes a) at least one amorphous polyester polyol comprising the reaction product of neopentyl glycol, hexanediol and at least one of phthalic anhydride and phthalic acid; b) at least one liquid polyester polyol having a viscosity of greater than about 10,000 cps at 80° C.; c) at least one crystalline polyester polyol having a melting point of from about 40° C. to about 120° C.; and d) at least one thermoplastic polyurethane.Type: GrantFiled: September 27, 2001Date of Patent: January 18, 2005Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Marietta B. Helmeke, Jorge A. Lavieri
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Patent number: 6133400Abstract: This invention relates to a hot melt moisture cure polyurethane composition which is the reaction product of a polyether polyol formed from a compound selected from the group consisting of ethylene oxide, propylene oxide, 1,2-butylene oxide, 1,4-butylene oxide and mixtures thereof; a low molecular weight polyalkylene glycol having from 3 to 7 carbon atoms; a crystalline polyester polyol having a melting point from about 40.degree. C. to about 120.degree. C.; and at least one polyfinctional isocyanate component wherein said composition has a moisture vapor transmission rate of greater than about 100 g/m.sup.2 /day film thickness of from about 450 to about 500 g/m.sup.2, and hydrolysis resistance.Type: GrantFiled: January 20, 1999Date of Patent: October 17, 2000Assignee: H. B. Fuller Licensing, Inc.Inventor: Marietta B. Helmeke
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Patent number: 5869593Abstract: This invention relates to a hot melt moisture cure polyurethane composition which is the reaction product of a) a polyether polyol formed from a compound selected from the group consisting of ethylene oxide, propylene oxide, 1,2-butylene oxide, 1,4-butylene oxide and mixtures thereof; b) a crystalline polyester polyol having a melting point from about 40.degree. C. to about 120.degree. C.; and c) and at least one polyfunctional isocyanate component.Type: GrantFiled: April 27, 1998Date of Patent: February 9, 1999Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Marietta B. Helmeke, John M. Zimmel, Franz Maitz