Patents by Inventor Donald C. Mente

Donald C. Mente 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: 6638459
    Abstract: A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure R—(ao)n—Y where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: October 28, 2003
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Publication number: 20030047278
    Abstract: A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure R—(ao)n—Y where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 13, 2003
    Applicant: BASF Corporation
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Publication number: 20030006006
    Abstract: A method is disclosed for preparing compression molded or pressed lignocellulosic articles. The method involves forming a binder resin by combining a polyisocyanate component with a synergist component of a C1 to C4 N-alkyl pyrrolidone, gamma-butyrolactone, or mixtures thereof. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles having a moisture content of from 2 to 15 weight percent. The compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture.
    Type: Application
    Filed: August 20, 2002
    Publication date: January 9, 2003
    Inventors: Donald C. Mente, Li-Mei Lu
  • Patent number: 6464820
    Abstract: A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure R—(ao)n—Y where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 15, 2002
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Patent number: 6458238
    Abstract: A method is disclosed for preparing compression molded or pressed lignocellulosic articles. The method involves forming a binder resin by combining a polyisocyanate component with a synergist component of a C1 to C4 N-alkyl pyrrolidone, gamma-butyrolactone, or mixtures thereof. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles having a moisture content of from 2 to 15 weight percent. The compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 1, 2002
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, Li-Mei Lu
  • Patent number: 6451101
    Abstract: There is disclosed a parting agent comprising the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure R-(ao)n-Y wherein: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide, and mixtures thereof; n is about 1 to about 25; and Y represents a monofunctional isocyanate-reactive group. There is also disclosed the processes that may be utilized to produce the parting agent.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: September 17, 2002
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Publication number: 20020121340
    Abstract: A method is disclosed for preparing compression molded or pressed lignocellulosic articles. The method involves forming a binder resin by combining a polyisocyanate component with a synergist component of a C1 to C4 N-alkyl pyrrolidone, gamma-butyrolactone, or mixtures thereof. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles having a moisture content of from 2 to 15 weight percent. The compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture.
    Type: Application
    Filed: December 29, 2000
    Publication date: September 5, 2002
    Inventors: Donald C. Mente, Li-Mel Lu
  • Publication number: 20020123641
    Abstract: There is disclosed a parting agent comprising the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure
    Type: Application
    Filed: December 29, 2000
    Publication date: September 5, 2002
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Publication number: 20020121327
    Abstract: A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure R—(ao)n—Y where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure.
    Type: Application
    Filed: December 29, 2000
    Publication date: September 5, 2002
    Inventors: Donald C. Mente, Li-Mei Lu, David D. Peters, Joe C. Wilson, Anthony G. Schaefer
  • Patent number: 5830926
    Abstract: The invention pertains to flame retardant flexible polyurethane foams prepared by reacting a polyether polyol and an organic isocyanate in the presence of a blowing agent and incorporating melamine and an effective amount of another flame retardant. The organic isocyanate comprises carbodiimide-uretonimine-modified diphenylmehtane diisocyanate and toluene diisocyanate. The polyurethane foams exceed conventional flame retardancy standards and exhibit flame spread index values of less than 25 as measured under flame test procedure ASTM D3675-90.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: November 3, 1998
    Assignee: BASF Corporation
    Inventors: Theodore M. Smiecinski, Steven E. Wujcik, Donald C. Mente
  • Patent number: 5730909
    Abstract: The invention pertains to flame retardant flexible polyurethane foams prepared by reacting a polyether polyol and an organic isocyanate in the presence of a blowing agent and incorporating melamine and an effective amount of another flame retardant. The organic isocyanate comprises carbodiimide-uretonimine-modified diphenylmehtane diisocyanate and toluene diisocyanate. The polyurethane foams exceed conventional flame retardancy standards and exhibit flame spread index values of less than 25 as measured under flame test procedure ASTM D3675-90.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 24, 1998
    Assignee: BASF Corporation
    Inventors: Theodore M. Smiecinski, Steven E. Wujcik, Donald C. Mente
  • Patent number: 5607982
    Abstract: A flexible open-cell polyurethane is described that is the reaction product of a mixture comprising(a) a polyisocyanate component comprising monomeric or polymeric MDI, and(b) a polyol component having at least 50% of its 0H functional groups as secondary OH groups.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: March 4, 1997
    Assignee: BASF Corporation
    Inventors: Duane A. Heyman, Theodore M. Smiecinski, Donald C. Mente
  • Patent number: 5124389
    Abstract: New liquid thickeners for aqueous liquids, particularly those employed in pesticides and latex paints, comprise polyoxyalkylene polyethers terminated with oxypropylene groups. These copolymers are prepared by reacting ethylene oxide with an active hydrogen-containing initiator having about 1 to 18 carbon atoms and at least one active hydrogen atom followed by reaction with propylene oxide.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: June 23, 1992
    Inventor: Donald C. Mente
  • Patent number: 5093412
    Abstract: Macromers for use in preparing stable, low viscosity graft polymer polyols of high solids content are disclosed. These macromers are easily made in high yield with short cycle times, and may be used to prepare graft dispersions containing amine based polyols.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: March 3, 1992
    Assignee: BASF Corporation
    Inventors: Donald C. Mente, John E. Davis, Steven D. Gagnon, Duane A. Heyman
  • Patent number: 4997471
    Abstract: New liquid thickeners for aqueous liquids, particularly those employed in pesticides and latex paints, comprise polyoxyalkylene polyethers terminated with oxypropylene groups. These copolymers are prepared by reacting ethylene oxide with an active hydrogen-containing initiator having about 1 to 18 carbon atoms and at least one active hydrogen atom followed by reaction with propylene oxide.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: March 5, 1991
    Assignee: BASF Corporation
    Inventor: Donald C. Mente
  • Patent number: 4851217
    Abstract: A composition of matter and method of making the composition which relates to an all aqueous, phase stable emulsion of organophosphorous pesticides which is free of organic solvents. The composition comprises from about 40 to 95 percent by weight of an organophosphorous selected from the group consisting of phosphates, phosphorothioates and phosphorothionates, and mixtures thereof, from about 3 to 10 percent by weight of an nonionic block, heteric, heteric/block copolymer of ethylene oxide and propylene oxide, from about 3 to 16 percent by weight urea, and about 20 to 50 percent water. The composition is made by blending these components together under moderate agitation.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: July 25, 1989
    Assignee: BASF Corporation
    Inventor: Donald C. Mente
  • Patent number: 4675445
    Abstract: A process for eliminating N-nitrosamines, particularly N,N-dialkyl-N-nitrosamines and N-alkyl-N-aryl-N-nitrosamines from N-nitrosamine containing compositions through the addition of organic carboxylic acid halides. The process eliminates N-nitroso compounds without rearrangement to C-nitroso compounds.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: June 23, 1987
    Assignee: BASF Corporation
    Inventors: Pauls Davis, Donald C. Mente