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:
Oct. 06, 2020
Filed:
Oct. 24, 2018
Applicant:
Covestro Llc, Pittsburgh, PA (US);
Inventors:
Nigel Barksby, Moon Township, PA (US);
Brian L. Neal, Pittsburgh, PA (US);
Assignee:
Covestro LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/02 (2006.01); C08G 18/48 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/02 (2013.01); C08G 18/4833 (2013.01); C08J 9/0061 (2013.01); C08J 9/142 (2013.01); C08G 2101/0008 (2013.01); C08J 2371/02 (2013.01); C08J 2375/08 (2013.01);
Abstract
This invention relates to a process for preparing viscoelastic flexible polyurethane foam comprising reacting an isocyanate component with an isocyanate-reactive component that comprises a polyol blend having a hydroxyl number of 56 to 250 and an average functionality of greater than 2, and a hydroxyl-terminated prepolymer. The invention also relates to viscoelastic flexible polyurethane foams.