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. 16, 2001
Filed:
Jul. 14, 1999
Applicant:
Inventors:
Mitsuo Tamazawa, Matsudo, JP;
Yasuo Kuroda, Tokyo, JP;
Assignee:
Taisei Chemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 3/10 ;
U.S. Cl.
CPC ...
C09C 3/10 ;
Abstract
Provided is a method for producing an amphoteric resin which comprises reacting (1) a copolymerizable basic prepolymer A,which is obtained by reacting a prepolymer A,being obtained by polymerization of an amino group-containing &agr;, &bgr;-ethylenically polymerizable compound, other &agr;, &bgr;-ethylenically polymerizable compound and a polymerization initiator containing a carboxyl group at an end, with a compound having an epoxy group represented by the following formula (I):