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.

Date of Patent:
Nov. 14, 2023

Filed:

Dec. 19, 2016
Applicant:

Shell Oil Company, Houston, TX (US);

Inventors:

Pranaya Man Singh Pradhan, Bangalore, IN;

Eswaramurthi Nachiappan, Bangalore, IN;

Michiel Barend Eleveld, Amsterdam, NL;

Prem Kumar Dhanapal, Bangalore, IN;

Assignee:

SHELL USA, INC., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/48 (2006.01); C08G 18/76 (2006.01);
U.S. Cl.
CPC ...
C08G 18/4816 (2013.01); C08G 18/485 (2013.01); C08G 18/7621 (2013.01); C08G 2110/0083 (2021.01);
Abstract

A process for the production of a polyurethane foam having a resilience of at least 50%, said process comprising reacting (i) a first polyether polyol comprising polyether chains containing no more than 20% ethylene oxide content, and having a primary hydroxyl content of no more than 25%; (ii) a second polyether polyol comprising polyether chains containing at least 50% ethylene oxide content; and (iii) one or more aromatic polyisocyanates, in the presence of one or more catalysts having gelling and/or blowing activities.


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Pradhan, Pranaya Man Singh. (2023). Process for the production of polyurethane foams (U.S. Patent No. 11814467). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11814467

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