Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-06-19
1999-07-20
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
522 53, 522169, 522170, 525481, 525502, 525524, 525527, 525529, 525533, 528109, 523404, 523414, C08G 5916, C08K 320, C08L 6302, C08L 6304
Patent
active
059257199
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.
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Epoxy Resins--Their Applications and Technology, H. Lee and K. Neville, ed., McGraw-Hill Book Co., Inc., New York, NY, pp. 21-22. (1957).
Hallock John S.
Herr Donald E.
Cordani John L.
MacDermid Incorporated
Sellers Robert E.
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