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:
Dec. 11, 1984
Filed:
Sep. 21, 1983
Applicant:
Inventors:
Tadanori Fukuda, Otsu, JP;
Sadayuki Sakamoto, Shiga, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526301 ;
Abstract
A polymer obtained by polymerizing a urethanized acrylic or methacrylic monomer obtained by reacting the hydroxyl group of an acrylic or methacrylic monomer having a nucleus-halogen-substituted aromatic ring and a hydroxyl group with the isocyanate group of a polyfunctional isocyanate is excellent and has a high refractive index. Accordingly, this polymer is valuable as a resin material for a plastic lens.
Fukuda, Tadanori. (1984). Urethanized acrylic resin material for plastic lens and lens composed (U.S. Patent No. 4487904). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4487904
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile