Daryl Jay Robinson

US Patent:

20080071016, Mar 20, 2008

Filed:

Aug 24, 2007

Appl. No.:

11/844588

Inventors:

David J. Boettcher - McMurray PA, US
William H. McDonald - Mars PA, US
Vidhu J. Nagpal - Murrysville PA, US
Daryl J. Robinson - Monroeville PA, US
Robert A. Smith - Murrysville PA, US

Assignee:

PPG INDUSTRIES OHIO, INC. - Cleveland OH

International Classification:

C08L 75/04
C08J 3/00

US Classification:

524284, 524590

Abstract:

The present invention provides a polyureaurethane composition comprising:

US Patent:

20090176945, Jul 9, 2009

Filed:

Mar 17, 2009

Appl. No.:

12/405720

Inventors:

Nina Bojkova - Monroeville PA, US
Daryl J. Robinson - Monroeville PA, US
Thomas G. Rukavina - New Kensington PA, US

Assignee:

PPG INDUSTRIES OHIO, INC. - Cleveland OH

International Classification:

C08G 18/87

US Classification:

525453, 525452

Abstract:

Sulfur-containing polyurethane comprising the reaction product of:

US Patent:

20070142604, Jun 21, 2007

Filed:

Dec 16, 2005

Appl. No.:

11/303671

Inventors:

Nina Bojkova - Monroeville PA, US
Daryl Robinson - Monroeville PA, US
Thomas Rukavina - New Kensington PA, US

International Classification:

C08G 18/00

US Classification:

528044000

Abstract:

The present invention relates to polyurethanes and sulfur-containing polyurethanes and methods for their preparation. Polyurethanes of the present invention can be prepared by combining polyisocyanate; trifunctional or higher-functional polyol having molecular weight of less than or equal to 200 grams/mole; and diol having molecular weight of less than or equal to 200 grams/mole. Sulfur-containing polyurethanes of the present invention can be prepared by combining polyisocyanate and/or polyisothiocyanate; trifunctional or higher-functional polyol having molecular weight of less than or equal to 200 grams/mole, and/or trifunctional or higher-functional polythiol having molecular weight of less than or equal to 600 grams/mole; and diol having molecular weight of less than or equal to 200 grams/mole and/or dithiol having molecular weight of less than or equal to 600 grams/mole.