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:
Jun. 03, 2003
Filed:
Apr. 11, 2001
Applicant:
Inventors:
Katsutoshi Yokoyama, Osaka, JP;
Kazuya Tsujimura, Osaka, JP;
Assignee:
Daiso Co. LTD, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 2/802 ;
U.S. Cl.
CPC ...
C08J 2/802 ;
Abstract
A curable resin composition containing (A) an aromatic diallyl compound, (B) an acid derivative or an aliphatic group-containing compound having at least 4 (meth)acryl groups in one molecule, (C) divinylbenzene, and (D) a polythiol compound having at least two mercapto groups in one molecule provides an optical material having a desirable refractive index, Abbe number and transparency, and excellent heat resistance.