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:
Apr. 21, 2020
Filed:
Feb. 05, 2016
Applicants:
Mitsui Chemicals, Inc., Tokyo, JP;
A School Corporation Kansai University, Osaka, JP;
Inventors:
Assignees:
MITSUI CHEMICALS, INC., Tokyo, JP;
A SCHOOL CORPORATION KANSAI UNIVERSITY, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/66 (2006.01); C08G 18/65 (2006.01); C08G 18/32 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); G01L 7/08 (2006.01);
U.S. Cl.
CPC ...
C08G 18/6677 (2013.01); C08G 18/3206 (2013.01); C08G 18/4854 (2013.01); C08G 18/65 (2013.01); C08G 18/7671 (2013.01); C08G 18/7685 (2013.01); G01L 7/086 (2013.01);
Abstract
The photoelastic polyurethane resin has a Young's modulus at 25° C. of 2 to 5 MPa, a photoelastic constant at 25° C. of 1000×10Pato 100000×10Pa, and a glass transition temperature of −60° C. to −21° C.