Patents by Inventor Harry W. Hsieh

Harry W. Hsieh 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: 7819964
    Abstract: The invention is a composition comprising a) one or more organotitanates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure; b) one or more mercaptosilanes; c) one or more polyaminosilanes; d) one or more secondary aminosilanes; and e) a solvent which dissolves the components of the composition. The composition also includes an organotin compound f). This composition is referred to as a clear primer hereinafter. In another embodiment the invention is a system for bonding glass to a substrate which comprises a clear primer according to the invention; and an adhesive comprising an isocyanate functional prepolymer and a catalyst for the cure of the isocyanate functional prepolymer.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: October 26, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Harry W. Hsieh, Dominic J. Allam, Ziyan Wu
  • Patent number: 7708853
    Abstract: The invention is a bonding process using a composition comprising a) one or more organotitanates or zirconates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure with the proviso that one of the ligands has an acidic moiety; one or more strong organic acids or a mixture thereof; b) one or more alkoxysilanes; c) optionally one or more high molecular weight resins; and d) a solvent which dissolves the components of the composition. This composition is referred to as a clear primer hereinafter. Preferably, the composition comprises both an organotitanate or zirconate and a strong acid.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: May 4, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Ziyan Wu, Harry W. Hsieh, Daniel P. Heberer, Dominic J. Allam
  • Publication number: 20090205769
    Abstract: The invention is a composition comprising a) one or more organotitanates or zirconates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure with the proviso that one of the ligands has an acidic moiety; one or more strong organic acids or a mixture thereof; b) one or more alkoxysilanes; c) optionally one or more high molecular weight resins; and d) a solvent which dissolves the components of the composition. This composition is referred to as a clear primer hereinafter. Preferably, the composition comprises both an organotitanate or zirconate and a strong acid.
    Type: Application
    Filed: August 21, 2008
    Publication date: August 20, 2009
    Inventors: Ziyan Wu, Harry W. Hsieh, Daniel P. Heberer, Dominic J. Allam
  • Patent number: 7494540
    Abstract: The invention is a composition comprising a) one or more organotitanates or zirconates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure with the proviso that one of the ligands has an acidic moiety; one or more strong organic acids or a mixture thereof; b) one or more alkoxysilanes; c) optionally one or more high molecular weight resins; and d) a solvent which dissolves the components of the composition. This composition is referred to as a clear primer hereinafter. Preferably, the composition comprises both an organotitanate or zirconate and a strong acid.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 24, 2009
    Assignee: Dow Global Technologies, Inc.
    Inventors: Ziyan Wu, Harry W. Hsieh, Daniel P. Heberer, Dominic J. Allam
  • Patent number: 7416599
    Abstract: The invention is a composition comprising a) one or more organotitanates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure; b) one or more mercaptosilanes; c) one or more polyaminosilanes; d) one or more secondary aminosilanes; and e) a solvent which dissolves the components of the composition. This composition is referred to as a clear primer hereinafter. In another embodiment the invention is a system for bonding glass to a substrate which comprises a clear primer according to the invention; and an adhesive comprising an isocyanate functional prepolymer and a catalyst for the cure of the isocyanate functional prepolymer.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: August 26, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Harry W. Hsieh, Daniel P. Heberer, Dominic J. Allam, Ziyan Wu
  • Publication number: 20080199607
    Abstract: The invention is a composition comprising a) one or more organotitanates having four ligands wherein the ligands are hydrocarbyl, optionally containing one or more functional groups having one or more heteroatoms selected from the group comprising oxygen, nitrogen, phosphorus and sulfur wherein two or more of the ligands may form a cyclic structure; b) one or more mercaptosilanes; c) one or more polyaminosilanes; d) one or more secondary aminosilanes; and e) a solvent which dissolves the components of the composition. This composition is referred to as a clear primer hereinafter. In another embodiment the invention is a system for bonding glass to a substrate which comprises a clear primer according to the invention; and an adhesive comprising an isocyanate functional prepolymer and a catalyst for the cure of the isocyanate functional prepolymer.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 21, 2008
    Inventors: Harry W. Hsieh, Dominic J. Allam, Ziyan Wu
  • Patent number: 7087127
    Abstract: The invention is an adhesive composition comprising a) i) a trialkoxysilane functional polyether or polyurethane wherein the polyether or polyurethane has a weight average molecular weight of 6000 or greater and a dialkyltin carboxylate or dialkyltin alcoholate; or ii) a dialkoxysilane functional polyether or polyurethane and a dialkyltin alcoholate; and b) a primary or secondary amino straight chain alkyl trialkoxysilane; wherein the dialkyltin carboxylate or dialkyltin alcoholate is present in an effective amount to facilitate bonding of the adhesive to a substrate of from about 0.1 to about 1.0 percent by weight based on the weight of the adhesive and the primary or secondary amino straight chained alkyl trialkoxysilane is present in an amount which is effective to facilitate bonding of the adhesive to a substrate wherein the amount is from about 0.5 to about 1.2 percent by weight. In another embodiment, the invention is a method of bonding a window in a vehicle.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 8, 2006
    Assignee: Essex Specialty Products Inc.
    Inventors: Syed Z. Mahdi, Harry W. Hsieh
  • Patent number: 6828403
    Abstract: The invention is an adhesive composition comprising a) i) a trialkoxysilane functional polyether or polyurethane wherein the polyether or polyurethane has a weight average molecular weight of 6000 or greater and a dialkyltin carboxylate or dialkyltin alcoholate; or ii) a dialkoxysilane functional polyether or polyurethane and a dialkyltin alcoholate; and b) a primary or secondary amino straight chain alkyl trialkoxysilane; wherein the dialkyltin carboxylate or dialkyltin alcoholate is present in an effective amount to facilitate bonding of the adhesive to a substrate of from about 0.1 to about 1.0 percent by weight based on the weight of the adhesive and the primary or secondary amino straight chained alkyl trialkoxysilane is present in an amount which is effective to facilitate bonding of the adhesive to a substrate wherein the amount is from about 0.5 to about 1.2 percent by weight.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 7, 2004
    Assignee: Essex Specialty Products, Inc.
    Inventors: Syed Z. Mahdi, Harry W. Hsieh
  • Publication number: 20040188016
    Abstract: The invention is an adhesive composition comprising
    Type: Application
    Filed: April 7, 2004
    Publication date: September 30, 2004
    Inventors: Syed Z. Mahdi, Harry W. Hsieh
  • Patent number: 6613816
    Abstract: In one embodiment the invention is An adhesive composition comprising a) a polymer having a flexible backbone and a reactive moiety capable of cross-linking, b) a particle comprising an active agent encapsulated in an encapsulating agent wherein the active agent comprises a catalyst for cross-linking of the reactive moiety, a curing agent for the reactive moiety, an accelerator for the curing reaction or a mixture thereof; and the encapsulating agent comprises a side chain crystallizable polymer wherein the active agent is not substantially extractable from the particle at ambient conditions in a first extraction after particle formation.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: September 2, 2003
    Assignee: The Dow Chemical Company
    Inventors: Syed Z. Mahdi, Renhe R. Lin, Dwight K. Hoffman, Gordon M. Parker, Harry W. Hsieh
  • Publication number: 20020100550
    Abstract: The invention is an adhesive composition comprising
    Type: Application
    Filed: November 9, 2001
    Publication date: August 1, 2002
    Inventors: Syed Z. Mahdi, Harry W. Hsieh
  • Patent number: 6355127
    Abstract: In one embodiment the invention is An adhesive composition comprising a) a polymer having a flexible backbone and a reactive moiety capable of cross-linking, b) a particle comprising an active agent encapsulated in an encapsulating agent wherein the active agent comprises a catalyst for cross-linking of the reactive moiety, a curing agent for the reactive moiety, an accelerator for the curing reaction or a mixture thereof; and the encapsulating agent comprises a side chain crystallizable polymer wherein the active agent is not substantially extractable from the particle at ambient conditions in a first extraction after particle formation. This composition is used in binding two subtracters together.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: March 12, 2002
    Assignees: The Dow Chemical Company, Essex Specialty Products, Inc.
    Inventors: Syed Z. Mahdi, Renhe R. Lin, Dwight K. Hoffman, Gordon M. Parker, by Michael Parker, Harry W. Hsieh
  • Publication number: 20020010272
    Abstract: In one embodiment the invention is An adhesive composition comprising
    Type: Application
    Filed: June 7, 2001
    Publication date: January 24, 2002
    Inventors: Syed Z. Mahdi, Renhe R. Lin, Dwight K. Hoffman, Gordon M. Parker, Harry W. Hsieh, Michael Parker
  • Patent number: 6015475
    Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyanate functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; and (2) a catalytic amount of (a) a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound, (b) a mixture of a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound and a second organometallic compound, or (c) a mixture of an organometallic compound with dimorpholinodialkyl ether or an dialkylmorpholinodialkyl ether.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: January 18, 2000
    Assignee: Essex Specialty Products, Inc.
    Inventors: Harry W. Hsieh, Syed Z. Mahdi
  • Patent number: 6001214
    Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyanate functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; and (2) a catalytic amount of (a) a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound, (b) a mixture of a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound and a second organometallic compound, or (c) a mixture of an organometallic compound with dimorpholinodialkyl ether or an dialkylmorpholinodialkyl ether.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: December 14, 1999
    Assignee: Essex Specialty Products, Inc.
    Inventors: Harry W. Hsieh, Syed Z. Mahdi
  • Patent number: 5852137
    Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyanate functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; and (2) a catalytic amount of (a) a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound, (b) a mixture of a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound and a second organometallic compound, or (c) a mixture of an organometallic compound with dimorpholinodialkyl ether or an dialkylmorpholinodialkyl ether.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 22, 1998
    Assignee: Essex Specialty Products
    Inventors: Harry W. Hsieh, Syed Z. Mahdi
  • Patent number: 5468317
    Abstract: Described herein is a primer composition which comprises a solution or dispersion of: (a) about 2 percent to about 30 percent by weight of a film-forming resin; (b) about 2 percent to about 80 percent by weight of a reaction product of an epoxy silane and an amino silane, wherein the amino silane contains at least two amine groups per molecule, which is prepared by (1) contacting an amino silane and epoxy silane in amounts such that the molar ratio of epoxy silane to amino silane in the reaction mixture is less than about 1.8:1.0 and then (2) adding additional epoxy silane to the reaction mixture so that the molar ratio of epoxy silane to amino silane is at least about 2:1 in a volatile solvent. Described herein is also a method of bonding a vehicle window to a vehicle window flange using the primer composition and a urethane adhesive.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: November 21, 1995
    Assignee: The Dow Chemical Company
    Inventor: Harry W. Hsieh
  • Patent number: 5466727
    Abstract: Described herein is a primer composition which comprises a solution or dispersion of: (a) about 2 percent to about 30 percent by weight of a film-forming resin; (b) about 2 percent to about 80 percent by weight of a reaction product of an epoxy silane and an amino silane, wherein the amino silane contains at least two amine groups per molecule, which is prepared by (1) contacting an amino silane and epoxy silane in amounts such that the molar ratio of epoxy silane to amino silane in the reaction mixture is less than about 1.8:1.0 and then (2) adding additional epoxy silane to the reaction mixture so that the molar ratio of epoxy silane to amino silane is at least about 2:1 in a volatile solvent. It has been discovered that the primer of the invention enhances the bonding of a non-porous substrate, such as glass, to a second substrate, particularly when used in conjunction with a "fast cure" adhesive comprised of an isocyanate-functional prepolymer and dimorpholinodiethyl ether.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: November 14, 1995
    Assignee: Essex Specialty Products, Inc.
    Inventor: Harry W. Hsieh