Patents Represented by Attorney Herbert P. Price

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  • Waterproof ammonium nitrate fuel oil explosives
    Patent number: 4637849
    Abstract: Waterproof explosive compositions are made from blends of inorganic oxidizing salts, fuel oil and polygalactomannans plus crosslinkers. When exposed to water, the polygalactomannans and crosslinkers form gels which protect the explosive composition from penetration of water and the dissolution of the inorganic oxidizing salt.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: January 20, 1987
    Assignee: Celanese Corporation
    Inventor: William F. Harris, Jr.
  • Aqueous epoxy resin dispersions for can coating use
    Patent number: 4623680
    Abstract: Aqueous dispersions useful as can coating compositions are made from the ammonia or amine salt of a carboxyl functional acrylic copolymer blended with phenolplast resins, polyepoxide resins partially reacted with a monofunctional acid and, optionally, an epoxidized hydrocarbon or vegetable oil.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: November 18, 1986
    Assignee: Celanese Corporation
    Inventors: Farah D. Azarnia, Jimmy D. Elmore
  • Radiation curable abrasion resistant coatings for plastics
    Patent number: 4617194
    Abstract: Coating compositions are made from a blend of an acrylic or methacrylic ester of an aliphatic polyol and an acrylic or methacrylic ester of a polyglycidyl ether of a bisphenol A-formaldehyde condensate. Such coating compositions, when cured by radiation, are useful as abrasion resistant coatings for plastics.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: October 14, 1986
    Assignee: Celanese Corporation
    Inventors: Bruce D. Scott, James W. Watkins
  • Metal carboxylate/alcohol curing catalyst for polycyanate ester of polyhydric phenol
    Patent number: 4608434
    Abstract: Polycyanate esters of polyhydric phenols are cured with a liquid solution of a coordinating transition metal carboxylate in a monohydric alcohol. Such cured compositions are useful in structural composites, transfer molded encapsulants, filmed structural adhesives and printed wiring boards.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: August 26, 1986
    Assignee: Celanese Corporation
    Inventor: David A. Shimp
  • Aqueous based epoxy resin curing agents
    Patent number: 4608405
    Abstract: The instant invention is an epoxy resin curing agent based upon an epoxidized polyol containing aromatic and polyalkylene ether moities in which substantially all of the epoxide groups are reacted with a polyamine wherein each primary amine in the resulting reaction product is further reacted with a monoepoxide or a monocarboxylic acid. The resulting epoxy resin curing agent may be used in a water based system for curing epoxide resins. The curing agent is rendered water soluble or water dispersible by salting with a conventional volatile monocarboxylic acid such as acetic, formic or propionic acid.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: August 26, 1986
    Assignee: Celanese Corporation
    Inventor: William J. DeGooyer
  • Stable aqueous epoxy resin dispersions
    Patent number: 4608406
    Abstract: A stable aqueous epoxy resin dispersion, useful as a coating composition when cured, is made by dispersing in water the reaction product of a diglycidyl ether of a dihydric phenol, a dihydric phenol, a diglycidyl ether of a polyoxyalkylene glycol and an alkyl phenol-formaldehyde novolac resin.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: August 26, 1986
    Assignee: Celanese Corporation
    Inventors: Paul R. Williams, Jr., Russell V. Burt, Ronald Golden
  • Radiation curable acrylated polyurethane oligomer compositions
    Patent number: 4607084
    Abstract: Radiation cured compositions having improved abrasion resistance and cure response are made from blends of the reaction product of a diisocyanate, a hydroxyalkyl acrylate and a polyether diol with the reaction product of a diisocyanate, a hydroxyalkyl acrylate and a polyether triol wherein the average acrylate functionality of the blends is from about 2.4 to about 2.6. Such cured compositions are useful as coatings for various substrates.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: August 19, 1986
    Assignee: Celanese Specialty Resins, Inc.
    Inventor: William J. Morris, deceased
  • Titanium-glycol useful, as crosslinking agents, for polygalactomannans
    Patent number: 4605736
    Abstract: Aqueous solutions of polygalactomannans are crosslinked with the reaction product of titanium tetrachloride and a water-soluble alcohol or diol. Such crosslinked products are useful in fracturing solutions for secondary oil recovery or in gel explosives.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: August 12, 1986
    Assignee: Celanese Corporation
    Inventor: Michael E. Morgan
  • Metal carboxylate/alkylphenol curing catalyst for polycyanate esters of polyhydric phenols
    Patent number: 4604452
    Abstract: Polycyanate esters of polyhydric phenols are cured with a liquid solution of a coordinating transition metal carboxylate in an alkylphenol. Such cured compositions are useful in structural composites, transfer molded encapsulants, filmed structural adhesives and printed wiring boards.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: August 5, 1986
    Assignee: Celanese Corporation
    Inventor: David A. Shimp
  • Extension of gelation time of crosslinked polygalactomannans
    Patent number: 4568481
    Abstract: In a process for preparing crosslinked gels from aqueous polygalactomannans using potassium pyroantimonates, the rate of gel formation is decreased by chelating the potassium pyroantimonate with di or tri alkali metal or ammonium citrate.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: February 4, 1986
    Assignee: Celanese Corporation
    Inventor: William F. Harris, Jr.
  • Water-swellable crosslinked polymeric microgel particles and aqueous dispersions of organic film-forming resins containing the same
    Patent number: 4567246
    Abstract: Disclosed are carboxylic acid containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 10-50% by weight of polymerizable carboxylic acid monomers, up to 5% of a difunctional crosslinking monomer and one or more carboxyl-free relatively water insoluble polymerizable vinyl monomers. The resulting microgel particles are water-swellable and may be employed as stabilizers for use in the preparation of aqueous dispersions of film-forming resins containing smaller amounts of organic solvents than conventional aqueous dispersions of this type. Such dispersions are useful as coating compositions, yielding coatings having less water sensitivity and improved adhesion as compared with coatings obtained from conventional aqueous dispersions of film-forming resins.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: January 28, 1986
    Assignee: Celanese Corporation
    Inventors: Chandrasen Gajria, Yehuda Ozari
  • Water-swellable crosslinked polymeric microgel particles and aqueous dispersions of organic film-forming resins containing the same
    Patent number: 4560714
    Abstract: Disclosed are carboxylic acid containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 10-50% by weight of polymerizable carboxylic acid monomers, up to 5% of a difunctional crosslinking monomer and one or more carboxyl-free relatively water insoluble polymerizable vinyl monomers. The resulting microgel particles are water-swellable and may be employed as stabilizers for use in the preparation of aqueous dispersions of film-forming resins containing smaller amounts of organic solvents than conventional aqueous dispersions of this type. Such dispersions are useful as coating compositions, yielding coatings having less water sensitivity and improved adhesion as compared with coatings obtained from conventional aqueous dispersions of film-forming resins.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: December 24, 1985
    Assignee: Celanese Corporation
    Inventors: Chandrasen Gajria, Yehuda Ozari
  • Water-swellable crosslinked polymeric microgel particles and aqueous dispersions of organic film-forming resins containing the same
    Patent number: 4546014
    Abstract: Disclosed are carboxylic acid containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 10-50% by weight of polymerizable carboxylic acid monomers, up to 5% of a difunctional crosslinking monomer and one or more carboxyl-free relatively water insoluble polymerizable vinyl monomers. The resulting microgel particles are water-swellable and may be employed as stabilizers for use in the preparation of aqueous dispersions of film-forming resins containing smaller amounts of organic solvents than conventional aqueous dispersions of this type. Such dispersions are useful as coating compositions, yielding coatings having less water sensitivity and improved adhesion as compared with coatings obtained from conventional aqueous dispersions of film-forming resins.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: October 8, 1985
    Assignee: Celanese Corporation
    Inventors: Chandrasen Gajria, Yehuda Ozari
  • Novolac based epoxy resin curing agents for use in aqueous systems
    Patent number: 4539347
    Abstract: The instant invention is an epoxy resin curing agent based upon an epoxy novolac containing, on the average, between about 3 and about 7.5 epoxy groups per molecule, in which substantially all of the epoxide groups are reacted with a polyamine wherein each primary amine hydrogen in the resulting reaction product is further reacted with a monoepoxide or a monocarboxylic acid. The resulting epoxy resin curing agent may be used in a water based system for curing epoxide resins. The curing agent is rendered water soluble or water dispersible by salting with a conventional volatile monocarboxylic acid such as acetic, formic or propionic acid.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: September 3, 1985
    Assignee: Celanese Corporation
    Inventor: William J. DeGooyer
  • Water-swellable crosslinked polymeric microgel particles and aqueous dispersions of organic film-forming resins containing the same
    Patent number: 4539348
    Abstract: Disclosed are carboxylic acid containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 10-50% by weight of polymerizable carboxylic acid monomers, up to 5% of a difunctional crosslinking monomer and one or more carboxyl-free relatively water insoluble polymerizable vinyl monomers. The resulting microgel particles are water-swellable and may be employed as stabilizers for use in the preparation of aqueous dispersions of film-forming resins containing smaller amounts of organic solvents than conventional aqueous dispersions of this type. Such dispersions are useful as coating compositions, yielding coatings having less water sensitivity and improved adhesion as compared with coatings obtained from conventional aqueous dispersions of film-forming resins.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: September 3, 1985
    Assignee: Celanese Corporation
    Inventors: Chandrasen Gajria, Yehuda Ozari
  • Process for preparing epoxy resins having low hydrolyzable chlorine contents
    Patent number: 4535150
    Abstract: Low hydrolyzable chlorine containing epoxy resins are obtained by conducting a second dehydrohalogenation of the resin in isopropanol or secondary butanol solvent using aqueous alkali metal hydroxide as the dehydrohalogenating agent. Low hydrolyzable chlorine containing epoxy resins when cured have excellent electrical resistance properties.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: August 13, 1985
    Assignee: Celanese Corporation
    Inventor: Joe M. Hunter
  • Low viscosity UV curable polyacrylates
    Patent number: 4511732
    Abstract: Photocurable polyacrylate or methacrylate compounds which exhibit extremely low, neat viscosities while at the same time maintaining the high cure response of other related photocurable materials may be represented by the general formula: ##STR1## wherein R is hydrogen or methyl, R' is C.sub.1 -C.sub.8 alkyl or C.sub.3 -C.sub.8 alkyl ether alkyl and A is the residue of a diol or dicarboxylic acid, preferably a diphenol such as Bisphenol A. The process for preparing these materials involves reacting a C.sub.1 -C.sub.8 aliphatic alcohol or C.sub.3 -C.sub.8 aliphatic ether alcohol with a diglycidyl ether or ester and esterifying the remaining hydroxyl groups with acrylic or methacrylic acid.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: April 16, 1985
    Assignee: Celanese Corporation
    Inventor: Darrell D. Hicks
  • High charge density, cationic methacrylamide based monomers and their _polymers
    Patent number: 4495367
    Abstract: A new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or methyl; R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are lower alkyls; n is an integer ranging from 1 to 6; and X and Y are the same or different anions.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: January 22, 1985
    Assignee: Celanese Corporation
    Inventor: Laurence G. Dammann
  • Stable blends of N,N-diglycidyl amines and polyglycidyl ethers of polyhydric phenols
    Patent number: 4490273
    Abstract: Stable polyepoxide blends are made from N,N-diglycidyl aromatic amines having alkyl substituents on one or both aromatic nucleus positions ortho to the amine group and polyglycidyl ethers of polyhydric phenols. Such blends are useful in various plastics applications when cured.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: December 25, 1984
    Assignee: Celanese Corporation
    Inventor: David A. Shimp
  • Polyglycidyl hindered aromatic amines
    Patent number: 4487948
    Abstract: Polyglycidyl amines having room temperature latency when blended with curing agents and high heat distortion temperatures when cured are derived from hindered aromatic diamines and epihalohydrins. Cured products obtained from these polyglycidyl amines and curing agents are useful in structural composites, film adhesives, molding compounds and the like.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: December 11, 1984
    Assignee: Celanese Corporation
    Inventors: David A. Shimp, Richard B. Graver