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:
Jul. 20, 1999
Filed:
Jun. 19, 1997
Applicant:
Inventors:
John S Hallock, Ellicott City, MD (US);
Donald E Herr, Flemington, NJ (US);
Assignee:
MacDermid, Incorporated, Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525505 ; 522 53 ; 522169 ; 522170 ; 525481 ; 525502 ; 525524 ; 525527 ; 525529 ; 525533 ; 528109 ; 523404 ; 523414 ;
Abstract
A substantially ester-free, acid-functional thiol-functional resin is prepared via the reaction of an epoxy compound with a thiolacetic acid in the presence of an amine catalyst and heat to form a thioacetate derivative which is hydrolyzed to yield an ester-free, .beta.-hydroxy thiol-functional resin. The .beta.-hydroxy thiol-functional resin can then be reacted with a material capable of insert a group conferring aqueous-base developability such as a cyclic anhydride.