The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2020
Filed:
Sep. 19, 2016
Applicant:
Chemtura Corporation, Middlebury, CT (US);
Inventor:
Thomas R. Doyle, Wallingford, CT (US);
Assignee:
LANXESS Solutions US Inc., Shelton, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/10 (2006.01); C08G 18/08 (2006.01); C08G 18/32 (2006.01); C08G 18/16 (2006.01); C08G 18/79 (2006.01); C08G 18/44 (2006.01); C08G 18/12 (2006.01); C08G 18/34 (2006.01); C08G 18/38 (2006.01);
U.S. Cl.
CPC ...
C08G 18/0809 (2013.01); C08G 18/10 (2013.01); C08G 18/12 (2013.01); C08G 18/168 (2013.01); C08G 18/3206 (2013.01); C08G 18/3243 (2013.01); C08G 18/3268 (2013.01); C08G 18/34 (2013.01); C08G 18/3823 (2013.01); C08G 18/44 (2013.01); C08G 18/792 (2013.01);
Abstract
The addition of a small amount of an alkyl sulfoxide, e.g., DMSO, to an isocyanate capped prepolymer provides a storage stable prepolymer composition in which the prepolymer is also highly activated towards curing with certain blocked curing agents such as methylenedianiline metal salt coordination complexes. The prepolymer/alkyl sulfoxide compositions are cured by said blocked curing agents at lower temperatures and/or at an accelerated rate compared to similar compositions lacking the alkyl sulfoxide providing high performance polyurethane elastomers.