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 10676639 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 09, 2020

Filed:

Sep. 24, 2015
Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Songlin Liu, Singapore, SG;

Nie Yuntong, Singapore, SG;

Lena Ouh, Singapore, SG;

Rachel Tessy Mathew, Singapore, SG;

Assignee:

Covestro Deutschland AG, Leverkusen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/10 (2006.01); C09D 175/04 (2006.01); C08G 18/79 (2006.01); C08G 18/32 (2006.01); C08G 18/38 (2006.01); C08G 18/42 (2006.01); H01B 1/08 (2006.01);
U.S. Cl.
CPC ...
C09D 175/04 (2013.01); C08G 18/3212 (2013.01); C08G 18/3215 (2013.01); C08G 18/3221 (2013.01); C08G 18/3851 (2013.01); C08G 18/3872 (2013.01); C08G 18/4219 (2013.01); C08G 18/4241 (2013.01); C08G 18/792 (2013.01); H01B 1/08 (2013.01); C08G 18/324 (2013.01); C08G 18/3243 (2013.01); C08G 18/4277 (2013.01);
Abstract

The present inventions concerns compositions for producing thermoset polyurethanes, comprising polyisocyanates and polyols selected from a list consisting of allicyclic, aromatic compounds and branched polyesters. The films obtained from these compositions exhibit a high transparency, high thermal stability and good chemical resistance, and a method to produce the same. The said polyurethane films can be widely used in electronics industry where high transparency, high thermal resistance and good chemical resistance are the main requirements. Particularly, these films can be used as the substrates for conductive coatings and barrier coatings. These functionally coated films are particularly useful in applications such as touch panels or photo-voltaic cells.


Find Patent Forward Citations

Liu, Songlin. (2020). Colorless, transparent and heat resistant polyurethane films and methods for manufacturing the same (U.S. Patent No. 10676639). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10676639

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