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:
Jan. 31, 2017
Filed:
Jan. 31, 2013
Applicant:
Arkema Inc., King of Prussia, PA (US);
Inventors:
Benjamin Bin Chen, Wayne, PA (US);
Joseph S. Costa, Gilbertsville, PA (US);
Laurent Abbas, Narberth, PA (US);
Sri R. Seshadri, Holland, PA (US);
Assignee:
Arkema Inc., King of Prussia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 75/04 (2006.01); C08G 18/40 (2006.01); C08J 9/14 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08L 75/04 (2013.01); C08G 18/4018 (2013.01); C08J 9/14 (2013.01); C08J 9/144 (2013.01); C08J 9/149 (2013.01); C08G 2101/005 (2013.01); C08G 2101/0025 (2013.01); C08J 2203/06 (2013.01); C08J 2203/12 (2013.01); C08J 2203/142 (2013.01); C08J 2203/146 (2013.01); C08J 2203/162 (2013.01); C08J 2203/182 (2013.01); C08J 2375/04 (2013.01); C08L 2203/14 (2013.01);
Abstract
The shelf life of polyurethane polyol pre-blends containing halogenated olefins is extended by encapsulation of active components such as catalysts and/or surfactants. The active component is encapsulated in a crystallizable or thermoplastic polymer. The encapsulated particles have a size of 2,800 microns or less and the active components are not significantly leaked out, particularly in the presence of halogenated olefins.