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:
Jan. 12, 1993
Filed:
Apr. 10, 1991
Applicant:
Inventors:
Noriyuki Tsuboniwa, Osaka, JP;
Satoshi Urano, Kyoto, JP;
Hirotoshi Umemoto, Kyoto, JP;
Noriyuki Sakamoto, Hyogo, JP;
Kenshiro Tobinaga, Hyogo, JP;
Yasuyuki Tsuchiya, Osaka, JP;
Assignee:
Nippon Paint Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C07D / ;
U.S. Cl.
CPC ...
526305 ; 540460 ; 526258 ; 526259 ; 526263 ; 526264 ; 526265 ; 526302 ; 5263073 ; 5263074 ;
Abstract
The present invention relates to polymerizable cyclic urea derivatives which can be thermally split to give rise to an isocyanate group; and to a polymer having cyclic urea pendant groups, which can be cured by heating without any additional curing agent such as an isocyanate blocked with a volatile lower molecular weight material, so that volatile material is not released in a thermal curing process.