Patents by Inventor Gang-Fung Chen

Gang-Fung Chen 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: 7655312
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: February 2, 2010
    Assignee: Ashland Licensing and Intellectual Property, LLC
    Inventors: Gang-Fung Chen, Gary Walworth
  • Publication number: 20090183827
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Application
    Filed: July 22, 2008
    Publication date: July 23, 2009
    Inventors: Gang-Fung Chen, Gary J. Walsworth
  • Patent number: 7419724
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: September 2, 2008
    Assignee: Ashland, Inc.
    Inventors: Gang-Fung Chen, Gary J. Walworth
  • Publication number: 20070299167
    Abstract: Adhesive composition derived from tannin-furfuryl alcohol catalyzed by acid in a two-part aqueous system is used to bond a variety of wood substrates to give good bond strength and high percentage of wood failure. The reactivity of the mixed adhesive can be controlled by the proper selection of acid catalyst, catalyst concentration, and adhesive composition. This gives adhesive with a wide range of open time during processing. This adhesive system can be either cold set or heat activated. It can also be cured by radio frequency similar to typical industrial settings. These characteristics make this adhesive system suitable for a number of engineered wood applications such as finger joint, Glulam, I-joist, and LVL.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 27, 2007
    Inventors: Gang-Fung Chen, Jianxia Chen
  • Patent number: 7071248
    Abstract: Adhesive additives that are used in conjunction with polyisocyanate resins to form adhesive compositions. The adhesive additives contain castor oil, a mixture of castor oil and triglycerides, or a reaction product from the transesterification of one or more polyols and one or more triglycerides. The adhesive compositions are well suited for use as a binder in the manufacture of various composite products, particularly composite wood products including OSB construction panels and laminate composites.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: July 4, 2006
    Assignee: Ashland Licensing and Intellectual Property, LLC
    Inventors: Gang-Fung Chen, Stephen Hupp, Philip L. Schell
  • Publication number: 20050246991
    Abstract: The present invention relates to a one component adhesive for adhering polymeric membranes to roof substrates. The one component adhesives are comprised of the reaction product of an isocyanate and a mixture of a compound having an average of two isocyanate reactive functional groups and a compound having an average of three isocyanate reactive functional groups.
    Type: Application
    Filed: February 18, 2005
    Publication date: November 10, 2005
    Inventors: Gang-Fung Chen, Chung-Ying Chang
  • Publication number: 20040151916
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Application
    Filed: July 24, 2003
    Publication date: August 5, 2004
    Inventors: Gang-Fung Chen, Gary J. Walsworth
  • Publication number: 20040140055
    Abstract: Adhesive additives that are used in conjunction with polyisocyanate resins to form adhesive compositions. The adhesive additives contain castor oil, a mixture of castor oil and triglycerides, or a reaction product from the transesterification of one or more polyols and one or more triglycerides. The adhesive compositions are well suited for use as a binder in the manufacture of various composite products, particularly composite wood products including OSB construction panels and laminate composites.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 22, 2004
    Inventors: Gang-Fung Chen, Stephen Hupp, Philip L. Schell
  • Patent number: 6632873
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: October 14, 2003
    Assignee: Ashland, Inc.
    Inventors: Gang-Fung Chen, Gary J. Walsworth
  • Publication number: 20030125449
    Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
    Type: Application
    Filed: November 19, 2001
    Publication date: July 3, 2003
    Inventors: Gang-Fung Chen, Gary J. Walworth
  • Patent number: 6365650
    Abstract: An adhesive suitable for bonding wood is both heat curable and radio frequency (RF) curable. This adhesive is composed of an isocyanate-terminated prepolymer and hydrolyzed soy protein having a pH of at least about 9 and advantageously from about 9 to 11.5. The weight ratio of prepolymer to soy protein hydrolyzate ranges from about 70:30 to 90:10.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: April 2, 2002
    Assignee: Ashland Chemical Company
    Inventors: Gang-Fung Chen, David E. Day, David Jones
  • Publication number: 20020031669
    Abstract: An adhesive suitable for bonding wood is both heat curable and radio frequency (RF) curable. This adhesive is composed of an isocyanate-terminated prepolymer and hydrolyzed soy protein having a pH of at least about 9 and advantageously from about 9 to 11.5. The weight ratio of prepolymer to soy protein hydrolyzate ranges from about 70:30 to 90:10.
    Type: Application
    Filed: January 24, 2001
    Publication date: March 14, 2002
    Inventors: Gang-Fung Chen, David E. Day, David Jones
  • Patent number: 6231985
    Abstract: An adhesive suitable for bonding wood is both heat curable and radio frequency (RF) curable. This adhesive is composed of an isocyanate-terminated prepolymer and hydrolyzed soy protein having a pH of at least about 9 and advantageously from about 9 to 11.5. The weight ratio of prepolymer to soy protein hydrolyzate ranges from about 70:30 to 90:10.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: May 15, 2001
    Assignee: Ashland Inc.
    Inventors: Gang-Fung Chen, David E. Day, David Jones
  • Patent number: 5434213
    Abstract: Broadly, the present invention is directed to a pressure sensitive adhesive that possesses enhanced adhesion to low surface energy substrates. The inventive PSA comprises the free-radical polymerization reaction product prepared in the presence of a free-radical initiator and dispersed in organic solvent of between about 0.5% and 10%, by weight of the non-volatile solids of the reaction product, of an organic solvent soluble, high ethylene-containing polymer; and a mixture of ethylenically-unsaturated monomers. Such mixture of monomers comprises between 0% and not substantially above about 10%, by weight of the non-volatile solids of the reaction product, of an ethylenically-unsaturated carboxylic acid or anhydride; and the balance being a non-carboxyl/non-anhydride-functional vinyl monomer or mixture of monomers. The T.sub.g of the polymerized mixture of monomers is not substantially above about -20.degree. C.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: July 18, 1995
    Assignee: Ashland Oil, Inc.
    Inventors: Gang-Fung Chen, Laurence G. Dammann