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 8742059 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 03, 2014

Filed:

Nov. 30, 2011
Applicant:

Katsuya Sakayori, Tokyo, JP;

Inventor:

Katsuya Sakayori, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A polymer precursor including a part which sequences an unsaturated bond having a π electron orbit and a single bond alternately is disclosed. The polymer precursor has a first functional group and a second functional group which form a repeating unit constituting a polymer skeleton of an end product by an intramolecular reaction. At least a part of a conjugated state formed by the π electron orbit in the molecule is disconnected or weakened due to a three-dimensional structure of the molecule and a transmittance with respect to an electromagnetic wave of at least one wavelength selected from the group consisting of 436 nm, 405 nm, 365 nm, 248 nm and 193 nm is improved.


Find Patent Forward Citations

Sakayori, Katsuya. (2014). Polymer precursor, high transparency polyimide precursor, polymer compound, resin composition and article using thereof (U.S. Patent No. 8742059). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8742059

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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