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:
Apr. 03, 1990
Filed:
May. 19, 1988
Applicant:
Inventors:
Kunihide Takarabe, Izumi-ohtsu, JP;
Shinichi Kuwamura, Izumi-ohtsu, JP;
Assignee:
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08K / ;
U.S. Cl.
CPC ...
523511 ; 523205 ; 523504 ; 524296 ; 524297 ; 524308 ; 524312 ; 524313 ; 524314 ; 524376 ; 524377 ; 524378 ; 524384 ; 524386 ; 524390 ; 524391 ; 524458 ; 524460 ; 524529 ; 525242 ; 525244 ; 525258 ; 525445 ; 525455 ;
Abstract
A method of producing an emulsion polymer which comprises adding a polymerizable monomer to an emulsion polymer containing a high-molecular-weight compound having a weight average molecular weight of 20,000 to 2,000,000 as a seed polymer, the amount of the unsaturated monomer being 1.5 to 9.5 times the total volume of the solids in the emulsion polymer, and thereafter, polymerizing the monomer in the presence of a film-forming aid.