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:
Dec. 31, 2019
Filed:
Dec. 07, 2017
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventors:
Ronald A. Cageao, Beaver, PA (US);
Merle W. Lesko, McDonald, PA (US);
Assignee:
COVESTRO LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/76 (2006.01); C08G 18/10 (2006.01); C08G 18/48 (2006.01); B29C 67/24 (2006.01); B01D 35/30 (2006.01); C02F 1/00 (2006.01); B01D 29/01 (2006.01); C08G 18/50 (2006.01); B29K 105/00 (2006.01); B29K 75/00 (2006.01); B29L 31/14 (2006.01); C02F 103/42 (2006.01);
U.S. Cl.
CPC ...
C08G 18/7664 (2013.01); B01D 29/016 (2013.01); B01D 35/30 (2013.01); B29C 67/246 (2013.01); C02F 1/001 (2013.01); C08G 18/10 (2013.01); C08G 18/482 (2013.01); C08G 18/4808 (2013.01); C08G 18/4816 (2013.01); C08G 18/4825 (2013.01); C08G 18/4829 (2013.01); C08G 18/5021 (2013.01); B01D 2201/12 (2013.01); B29K 2075/00 (2013.01); B29K 2105/0005 (2013.01); B29L 2031/14 (2013.01); C02F 2103/42 (2013.01);
Abstract
Disclosed are processes for producing molded polyurethane elastomers and products, such as filter end caps, that include such elastomers. The elastomers are the reaction product of a non-foaming reaction mixture comprising an isocyanate-reactive composition and an organic polyisocyanate prepolymer with an internal mold release agent.