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:
Feb. 20, 2018
Filed:
Aug. 24, 2016
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventors:
Albert Magnotta, Monaca, PA (US);
Stephen J. Harasin, Morgan, PA (US);
Assignee:
Covestro LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/00 (2006.01); C08G 18/32 (2006.01); C08K 7/14 (2006.01); C08K 3/40 (2006.01); B29C 47/00 (2006.01); C08G 18/48 (2006.01); B29C 70/52 (2006.01); C08G 18/75 (2006.01); C08G 18/24 (2006.01); C08G 18/76 (2006.01); C08G 18/78 (2006.01); C08G 18/79 (2006.01); C08G 18/80 (2006.01); C08J 5/04 (2006.01); C08G 18/20 (2006.01); B29K 75/00 (2006.01); B29K 309/08 (2006.01);
U.S. Cl.
CPC ...
C08K 7/14 (2013.01); B29C 47/0014 (2013.01); B29C 70/52 (2013.01); B29C 70/521 (2013.01); B29C 70/527 (2013.01); C08G 18/24 (2013.01); C08G 18/3206 (2013.01); C08G 18/3281 (2013.01); C08G 18/3284 (2013.01); C08G 18/482 (2013.01); C08G 18/4804 (2013.01); C08G 18/4816 (2013.01); C08G 18/4829 (2013.01); C08G 18/751 (2013.01); C08G 18/758 (2013.01); C08G 18/7664 (2013.01); C08G 18/7831 (2013.01); C08G 18/792 (2013.01); C08G 18/8016 (2013.01); C08J 5/04 (2013.01); C08K 3/40 (2013.01); B29K 2075/00 (2013.01); B29K 2309/08 (2013.01); C08G 18/2063 (2013.01); C08J 2375/04 (2013.01); C08J 2375/08 (2013.01);
Abstract
Clear polyurethane fiber reinforced composites are produced by a pultrusion process with a polyurethane-forming system that includes: (a) a clear, aliphatic polyisocyanate having a viscosity at 25° C. of no more than 1000 centipoise, (b) a colorless polyol component comprising an amine-initiated polyol having a molecular weight of from about 150 to about 400 and an OH functionality greater than or equal to 3, and (c) a catalyst. These fiber-reinforced composites are characterized by both excellent weathering characteristics and excellent physical properties.