1
Laurence G Dammann, Gary M Carlson: Tin or bismuth complex catalysts and trigger cure of coatings therewith. Ashland Oil, Mueller and Smith, November 29, 1988: US04788083 (50 worldwide citation)

Disclosed is an activatable catalyst which is effective for the reaction of a hydroxyl compound and an isocyanate. Preferably, the catalyst is utilized in the cure of a coating composition of a polyol and a polyisocyanate. The activatable catalyst is activated in the presence of an amine activator o ...


2
Laurence G Dammann: Polyacrylate thickening agents. Celanese Corporation, Herbert P Price, T J Morgan, July 6, 1982: US04338239 (42 worldwide citation)

This invention provides a novel polyacrylate thickening agent which is composed of monomers comprising (1) (meth)acrylic acid, (2) glyceryl allyl ether derivative, and optionally (3) one or more other polymerizable monomers.


3
Daniel A Chung, Laurence G Dammann: Primerless adhesive for fiberglass reinforced polyester substrates. Ashland Oil, Mary E Picken, May 8, 1990: US04923756 (34 worldwide citation)

A laminated fiberglass reinforced polyester (FRP) substrate made using a primerless adhesive and the process of making the laminated FRP substrate. The primerless adhesive combines a prepolymer, an aliphatic polyisocyanate and a curative.


4
Roman Loza, Laurence G Dammann, Roger E Hayner, Patricia K Doolin: Unblown ethylene-vinyl acetate copolymer treated asphalt and its method of preparation. Marathon Ashland Petroleum, Ashland, Laurence P Hobbes, Richard Stone, October 24, 2000: US06136898 (32 worldwide citation)

A method is provided for improving high temperature performance grade properties of unblown asphalt by i) heating an asphalt cement to 200.degree. F. to 500.degree. F. (93.degree. C. to 260.degree. C.), ii) adding 0.1 wt. % to 10 wt. % ethylene-vinyl acetate copolymer based on weight of said asphalt ...


5
Laurence G Dammann: Process for preparing low molecular weight water-soluble polymers by copolymerizing with water-soluble monomers a calculated quantity of methallylsulfonate monomer. Celanese Corporation, Herbert P Price, May 29, 1984: US04451628 (20 worldwide citation)

This invention provides a process for preparing water-soluble polymers with a controlled low molecular weight, the molecular weight of the polymer being controlled by the presence of a calculated quantity of methallylsulfonate monomer during the polymerization reaction. The molecular weight of the p ...


6
Daniel A Chung, Laurence G Dammann: Primerless adhesive for fiberglass reinforced polyester substrates. Ashland Oil, Mary E Picken, September 1, 1992: US05143996 (18 worldwide citation)

A two part structural polyurethane adhesive composition and a method of making that adhesive. The adhesive is useful for adhering unprimed fiberglass reinforced polyester substrates and combines an isocyanate terminated prepolymer, and aliphatic polyisocyanate and a curative made of polyol and diami ...


7
Dennis P Miller, Laurence G Dammann: Primer for use on EPDM roofing materials. Ashland Oil, Mary E Picken, January 30, 1990: US04897137 (17 worldwide citation)

This invention is a primer for use on EPDM roofing membranes in conjunction with neoprene (polychloroprene) based contact adhesives which comprises an admixture of thermoplastic block copolymers, halogenated butyl rubber, aromatic hydrocarbon reinforcing resin and solvent.


8
Laurence G Dammann: Stable high solids water-in-oil slurry dispersion composition. Celanese Corporation, Herbert P Price, February 15, 1983: US04374216 (16 worldwide citation)

This invention provides a non-gelling water-in-oil high solids slurry dispersion of water-soluble polymer.


9
Laurence G Dammann, Michael L Gould: Liquid uncrosslinked Michael addition oligomers prepared in the presence of a catalyst having both an epoxy moiety and a quaternary salt. Ashland, Martin Connaughton, March 16, 2004: US06706414 (13 worldwide citation)

The uncrosslinked liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate-functional donor compounds with multifunctional acrylate acceptor compounds where the equivalent ratios of multifunctional acrylate to acetoacetate vary from ≧1:1 to ≧13 ...


10
Laurence G Dammann, Brent A Blakley, Gary M Carlson: In situ quaternary ammonium catalyst formation for curing polymeric isocyanates. Ashland Oil, Mueller and Smith, August 8, 1989: US04855383 (9 worldwide citation)

Disclosed is a curable composition suitable for use as a coating, adhesive, or the like which comprises a storage-stable, liquid composition comprising an isocyanate-functional compound (e.g. monomer, oligomer, or polymer), an epoxy component, and an alkylating agent; and a tertiary amine catalyst p ...