Patents Examined by Robert E. L. Sellers
  • Method for preparing metal cyanide catalyst/polyol initiator slurries
    Patent number: 6429166
    Abstract: Metal cyanide catalyst dispersions in initiator compounds are prepared by precipitating the catalyst in an inert organic compound, mixing the resulting slurry with the initiator and stripping off the inert organic compound. Using this method, an active alkylene oxide polymerization catalyst is prepared. It is not necessary to use a separate organic complexing agent in the preparation.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: August 6, 2002
    Assignee: Dow Global Technologies Inc.
    Inventor: Richard M. Wehmeyer
  • Curable coating composition with siloxane reactive diluents
    Patent number: 6420494
    Abstract: A curable composition having an epoxy component and an organosilane component. The epoxy component includes at least one epoxy compound having two or more epoxide functional groups. The organosilane component includes at least one organosilane compound having two or more silyl ether groups. An exemplary organosilane compound is a siloxane-modified polyol.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: July 16, 2002
    Assignee: NDSU Research Foundation
    Inventors: Mark D. Soucek, ShaoBing Wu
  • Reaction product of phenol-aldehyde with polyamine(-epoxy adduct) and proton donor
    Patent number: 6420496
    Abstract: A curing agent for epoxy resins is prepared by (1) reacting a phenol and an aldehyde in the presence of a basic catalyst to form a first reaction product, (2) reacting the first reaction product with a polyamine or a polyamine-epoxy adduct to form a second reaction product containing unreacted primary amine groups, and (3) reacting the second reaction product with a proton donor compound having a pKa value of 11 or less to form the curing agent.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 16, 2002
    Assignee: Cognis Corporation
    Inventors: Robert M. Moon, Shailesh Shah, Anbazhagan Natesh, Gaetano D. DeAngelis, Joseph L. Mulvey, Ronald T. Cash, Jr.
  • Composition of acrylic polycarboxylic acid, polyester polycarboxylic acid and polyepoxide
    Patent number: 6410647
    Abstract: A high-solid curable resin composition which forms a coated film having excellent acid rain resistance, mar resistance and appearance comprises: (a) 10 to 70% by weight of an acrylic polycarboxylic acid having 2 or more carboxyl groups per molecule on an average, an acid value of 5 to 300 mg KOH/g (solid) and a number-average molecular weight of 500 to 8000; (b) 5 to 70% by weight of a polyester polycarboxylic acid having an acid value of 50 to 350 mg KOH/g (solid), a number-average molecular weight of 400 to 3500 and a ratio of weight-average molecular weight to number-average molecular weight of 1.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 25, 2002
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Manabu Yoshioka, Akira Fushimi, Seigo Miyazoe, Masanobu Inoue, Yoshio Eguchi
  • Polyepoxide/polyether mono- or polyamine precursor reacted with mono- or polyamine, epoxy resin-amine adduct and monoepoxide-amine adduct
    Patent number: 6410658
    Abstract: A curing agent for epoxy resin comprises: a) a reaction product of at least one polyalkylene polyether monoamine and/or polyamine with a polyepoxide and, optionally, a monoepoxide to obtain an epoxide group-containing precursor, the precursor further reacted with a primary monoamine and/or a primary or secondary polyamine in at least a 10% molar excess relative to the epoxide groups of the precursor, the reaction product being substantially free of non-reacted amines; b) an amine-terminated adduct of an epoxy resin and a primary monoamine and/or a primary or secondary polyamine being substantially free of non-reacted amines; and c) an amine-terminated adduct of an epoxide group-containing reactive thinning agent and a primary monoamine and/or a primary or secondary polyamine being substantially free of non-reacted amines.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 25, 2002
    Assignee: Bakelite AG
    Inventors: Markus Schrötz, Martin Fulgraff, Peter Martischewski, Jurgen Schillgalies, Rolf Herzog
  • Microcapsulating conductive metal particles with polymerized monomers
    Patent number: 6406746
    Abstract: A process for producing a MC-type conductive filler includes treating minute metallic particles with a coupling agent, preparing an oil phase of the coupling agent-treated minute metallic particles and a reactive substance A, the reactive substance A directly contacting the metallic particles. Then, an aqueous phase is prepared having a reactive substance B, which is capable of reacting with the reactive substance A, dissolved in water. Thereafter, the oil phase is dispersed in the aqueous phase to form a suspension. In situ reaction of the reactive substances A and B is then caused by applying heat to the suspension or adding a catalyst to the suspension. This forms a coating of a thermosetting insulating resin on the surface of the minute metallic particles. Alternatively, the reactive substance B may not be used.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 18, 2002
    Assignee: Fujitsu Limited
    Inventors: Hiroaki Date, Makoto Usui, Isao Watanabe, Yuko Hozumi
  • Casting from epoxy resin and anhydride (partial ester)
    Patent number: 6407183
    Abstract: An epoxy resin composition having a viscosity of from 50 to 400 P at 25° C. is disclosed. The composition provides by casting a resin plate, particularly a transparent resin plate for a liquid crystal display, which has satisfactory thickness precision.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: June 18, 2002
    Assignee: Nitto Denko Corporation
    Inventors: Katsumi Shimada, Yutaka Aoki
  • Powder coating of epoxy resin and COOH- and ester-terminated anhydride
    Patent number: 6403715
    Abstract: The present invention provides a thermosetting powder coating composition comprising: (A) an epoxy-containing resin; and (B) a curing agent containing, as an essential ingredient, an acid anhydride (a) represented by the formula HOOC—(CH2)m—[COO—CO—(CH2)m]n—COOR1   (1) wherein R1 represents a C1-10 monovalent saturated hydrocarbon group, m is an integer of 6 to 18, and n is a number of 1 to 20 on average, the molar ratio of carboxyl groups to acid anhydride groups in the curing agent being in the range from 0.15:1 to 2.0:1, the molar ratio of the total of carboxyl groups and acid anhydride groups in the curing agent (B) to epoxy groups in the epoxy-containing resin (A) being in the range from 0.7:1 to 1.2:1.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: June 11, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Takato Adachi, Yugen Kawamoto, Hiromi Harakawa
  • Solution polymerizing aspartic acid and monomer to form succinimide copolymer
    Patent number: 6399715
    Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 4, 2002
    Assignee: Donlar Corporation
    Inventors: Grigory Ya. Mazo, Robert J. Ross, James F. Kneller, Jacob Mazo
  • Waterproofing membrane from epoxy resin and amine-terminated polyamide
    Patent number: 6395845
    Abstract: The present invention relates to thermoset epoxy resin waterproofing membranes for structures such as roofs comprising: (a) one or more epoxy resin(s) having an average of at least 1.5 epoxy groups per molecule; (b) a liquid amine terminated polyamide prepared by reacting at least one C18-50 dicarboxylic acid and an aminoalkylpiperazine in a ratio of moles of aminoalkylpiperazine to equivalents of carboxyl group in the acid of greater than 0.75:1; (c) one or more optional polyamine(s); (d) one or more optional filler(s); and (e) one or more optional modifying resin(s) wherein the tensile modulus of the thermoset epoxy waterproofing membranes is less than 200,000 psi and the tensile elongation of the thermoset epoxy waterproofing membranes is greater than 20%.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: May 28, 2002
    Assignee: Resolution Performance Products LLC
    Inventors: Daniel James Weinmann, Steven Lee Stewart
  • Hardeners for epoxy resins, processes for producing the same and methods of using the same
    Patent number: 6395806
    Abstract: Hardeners for epoxy resins produced by reacting one or more &agr;,&bgr;-unsaturated carboxylic acid esters with one or more hydroxy compounds, reacting the thus formed intermediate with one or more aminopolyalkylene oxide compounds, reacting the thus formed intermediate with one or more polyepoxide compounds, and reacting the thus formed intermediate with one or more amines are described. Processes for their production, aqueous dispersions containing the same and methods for their use are also described.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: May 28, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Horst Sulzbach, Thomas Huver, Hans-Josef Thomas, Vincenzo Foglianisi
  • Epoxidized poly-p-hydroxystyrene
    Patent number: 6391979
    Abstract: Disclosed are epoxy resins prepared by reacting p-hydroxystyrene and epichlorohydrin in the presence of one or more alkali agents. Also disclosed are epoxy resins prepared from reacting a p-hydroxystyrene polymer and one or more di-hydric phenol agents with epichlorohydrin in the presence of alkali. These epoxide resins have a low melt viscosity and when cured exhibit glass transition temperatures above 300° C.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: May 21, 2002
    Inventor: Donald J. Keehan
  • Casting composition of aromatic polyvinyl monomer, polythiol and epoxy strain reducer
    Patent number: 6391983
    Abstract: A crosslinkable polymeric casting composition comprises an aromatic polyvinyl monomer such as divinyl benzene, a polythiol such as pentaerythritol tetrakis-(3-mercaptopropionate), an epoxide strain-reducing agent such as hexanediol diglycidyl ether, and, optionally, a polymerizable comonomer such as polyethylene glycol dimethacrylate.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: May 21, 2002
    Assignee: Sola International Holdings, Ltd.
    Inventors: Ian Roger Bateman, Huan Kiak Toh, David Robert Diggins, Helena Kloubek
  • Phenol condensate from phenols, aromatic compound and N-containing heterocyclic
    Patent number: 6392003
    Abstract: The present invention provides a flame retardant phenol resin material which includes a phenol condensate, wherein a poly-aromatic compound obtained by a reaction of phenols (A) to aromatics (B) except for phenols and a heterocyclic compound (C) including nitrogen as heteroatom are condensed via aldehydes (D), and also provides a flame retardant epoxy resin material which includes an epoxy resin obtained by glycidyl-etherification of at least a part of phenolic hydroxyl groups of a poly-aromatic compound obtained by a reaction of phenols (A) to aromatics (B) except for phenols and a heterocyclic compound (C) including nitrogen as heteroatom are condensed via aldehydes (D).
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: May 21, 2002
    Assignee: NEC Corporation
    Inventors: Yukihiro Kiuchi, Masatoshi Iji, Makoto Soyama
  • Coating substrate with atom transfer radical polymerized carboxyl polymer and polyepoxide
    Patent number: 6391391
    Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) polycarboxylic acid functional polymer, and (b) epoxide functional crosslinking agent having at least two epoxide groups, e.g., triglycidyl isocyanurate (TGIC), is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.0. The thermosetting compositions of the present invention have utility as powder coatings compositions.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: May 21, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Karen A. Barkac, Simion Coca, James R. Franks, Kurt A. Humbert, Paul H. Lamers, Roxalana L. Martin, James B. O'Dwyer, Kurt G. Olson, Daniela White
  • Clearcoat binder of polyepoxide, polyacid and polyisocyanate
    Patent number: 6391970
    Abstract: A resinous binder useful in clear coat compositions comprises a) a polyepoxide such as a copolymer of an ethylenically unsaturated epoxide with other (meth)acrylate(s) or styrene, b) a polyacid such as a carboxyl-terminated polyester, and c) a polyisocyanate.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: May 21, 2002
    Assignee: BASF Corporation
    Inventors: Swaminathan Ramesh, Manoj K. Gupta
  • Epoxy resin hardener from aminopolyalkylene oxide/unsaturated ester, polyepoxide and amine
    Patent number: 6387988
    Abstract: Hardeners for epoxy resins produced by reacting one or more &agr;,&bgr;-unsaturated carboxylic acid esters with one or more aminopolyalkylene oxide compounds, reacting the thus formed intermediate with one or more polyepoxide compounds, and reacting the thus formed intermediate with one or more amines are described. Processes for their production, aqueous dispersions containing the same and methods for their use are also described.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: May 14, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Horst Sulzbach, Thomas Huver, Hans-Josef Thomas, Vincenzo Foglianisi
  • End-capped unsaturated polyetherester, unsaturated polyester and vinyl monomer
    Patent number: 6388023
    Abstract: A compositon useful as an intermediate for a skin laminate and a fiber-reinforced composite comprises: (A) At least 5 wt. % of an at least partially end-capped unsaturated polyetherester wherein the end-capping compound includes a compound having at least one epoxy group; (B) an unsaturated polyester resin such that the weight ratio unsaturated polyester resin (B):polyetherester resin (A) is from about 10:90 to about 90:10; (C) from about 10 to about 70 wt. % of at least one vinyl monomer such as styrene; and (D) a curing agent such as a free radical initiator and an accelerator.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: May 14, 2002
    Assignee: Cook Composites and Polymers Co.
    Inventors: Chih-Pin Hsu, Ming Yang Zhao, Linda Bergstrom
  • Hardeners for epoxy resins, processes for producing the same and methods of using the same
    Patent number: 6387989
    Abstract: Hardeners for epoxy resins produced by reacting one or more &agr;,&bgr;-unsaturated carboxylic acid esters with one or more aminopolyalkylene oxide compounds, reacting the thus formed intermediate with one or more polyhydroxy compounds, reacting the thus formed intermediate with one or more polyepoxide compounds, and reacting the thus formed intermediate with one or more amines are described. Processes for their production, aqueous dispersions containing the same and methods for their use are also described.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: May 14, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Horst Sulzbach, Thomas Huver, Hans-Josef Thomas, Vincenzo Foglianisi
  • Crosslinking isoprene-isobutylene rubber with alkylphenol-formaldehyde resin, hydrazide and epoxy compound
    Patent number: 6388008
    Abstract: The present invention provides a method for crosslinking an isoprene-isobutylene rubber, which comprises adding, to 100 parts by weight of an isoprene-isobutylene rubber, 5 to 25 parts by weight of an alkylphenol-formaldehyde resin and 0.1 to 5 parts by weight of a hydrazide compound, or 5 to 25 parts by weight of an alkylphenol-formaldehyde resin, 0.1 to 5 parts by weight of a hydrazide compound and 0.3 to 10 parts by weight of an epoxy compound. According to this method, a crosslinked rubber product of high hardness can be obtained without using any halogen compound or increasing the amount of carbon black used.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 14, 2002
    Inventor: Masao Onizawa