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:
Jun. 08, 2021

Filed:

Aug. 04, 2020
Applicant:

Biocellection Inc., Menlo Park, CA (US);

Inventors:

Katrina Marie Knauer, Redwood City, CA (US);

Jennifer Le Roy, Sunnyvale, CA (US);

Cody James Higginson, Fremont, CA (US);

Russell Clayton Pratt, San Mateo, CA (US);

David Samuel Pilsk, San Jose, CA (US);

Assignee:

BioCellection Inc., Menlo Park, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/46 (2006.01); C08G 18/76 (2006.01); C08G 18/75 (2006.01); C08K 5/18 (2006.01); C08K 5/053 (2006.01); C08K 5/24 (2006.01); C08G 18/42 (2006.01);
U.S. Cl.
CPC ...
C08G 18/463 (2013.01); C08G 18/4244 (2013.01); C08G 18/757 (2013.01); C08G 18/7621 (2013.01); C08G 18/7671 (2013.01); C08G 18/7678 (2013.01); C08K 5/053 (2013.01); C08K 5/18 (2013.01); C08K 5/24 (2013.01);
Abstract

This invention relates to the field of polymers. More specifically, the invention comprises thermoplastic polyurethane elastomers comprising polyesters comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The thermoplastic polyurethane elastomers described herein exhibit higher glass transition temperatures and higher Shore A hardness compared to thermoplastic polyurethane elastomers synthesized from similar polyester diols made from virgin monomers that do not contain nitro substitution.


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