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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.:

US 11472910 B1

PDFFull Text
Date of Patent:
Oct. 18, 2022

Filed:

May. 18, 2018

Polyisocyanate component, a polyurethane foaming system and an article made therefrom

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Yanli Feng, Shanghai, CN;

Weijun Zhou, Sugarland, TX (US);

Luigi Bertucelli, Reggio Emilia, IT;

Rajat Duggal, Pearland, TX (US);

Yibei Gu, Redwood City, CA (US);

Wei Liu, Shanghai, CN;

Davide Micheletti, Formigine, IT;

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:
Primary Examiner:

Chinessa T Golden

Int. Cl.
CPC ...
C08G 18/42 (2006.01); B32B 5/20 (2006.01); B32B 15/04 (2006.01); B32B 15/095 (2006.01); B32B 15/20 (2006.01); C08G 18/64 (2006.01); C08G 18/76 (2006.01); C08G 18/80 (2006.01);
U.S. Cl.
CPC ...
C08G 18/4225 (2013.01); B32B 5/20 (2013.01); B32B 15/046 (2013.01); B32B 15/095 (2013.01); B32B 15/20 (2013.01); C08G 18/6407 (2013.01); C08G 18/7664 (2013.01); C08G 18/8019 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2266/0278 (2013.01); B32B 2307/304 (2013.01); C08G 2110/0025 (2021.01);
Abstract

A polyisocyanate component, a polyurethane foaming system, and an article made therefrom, wherein the polyisocyanate component includes (a) a preformed mixture including an aromatic oxazolidone compound that is the reaction product of at least one aromatic epoxide and at least one first polyisocyanate having an average isocyanate functionality of no more than 2.7 and greater than 1.8, in the presence of at least one catalyst, the aromatic oxazolidone compound includes at least one free isocyanate group and at least one aromatic oxazolidone group, the aromatic oxazolidone group includes an aromatic group and an oxazolidone group, and (b) at least one second polyisocyanate has an average isocyanate functionality equal to or greater than 2.7 and less than 6.0. The second polyisocyanate is added to the preformed mixture to form the polyisocyanate component. The polyisocyanate component has a viscosity of no more than 4.0 Pa-sat 25° C., an aromatic oxazolidone group content of 2 weight percent to 10 weight percent based on a total weight of the polyisocyanate component, and an average isocyanate functionality of from 1.8 to 6.0.

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