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. 21, 1998
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Assignee:
Dainippon Ink & Chemicals Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524533 ; 523402 ; 523415 ; 523423 ; 524457 ; 524458 ; 524460 ; 524500 ; 524502 ; 524505 ; 524506 ; 524507 ; 524513 ; 524514 ; 524529 ; 524534 ; 524535 ; 524537 ; 524538 ; 524539 ; 524547 ; 524555 ; 524556 ; 524588 ; 524589 ; 524591 ; 524860 ; 524866 ;
Abstract
The invention concerns a process for the production of block copolymers or aqueous dispersions and emulsions thereof, whereby azo macroinitiators are reacted with radical-polymerizable monomers or a mixture of several radical-polymerizable monomers. The azo macroinitiators are obtained by reacting simple reactive azo compounds with prepolymers with a molecular weight between 400 and 20000, which possess at least 2 functional groups, e.g. polyurethanes or polyesters. The aqueous block copolymer dispersions and emulsions produced according to the invention are suitable for use for the production of paints, adhesives etc.