Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-09-19
1999-08-31
Yoon, Tae
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525539, 522135, 522142, 522146, 526321, 528220, C08G 1600, C08F 2214, C08J 328
Patent
active
059454890
ABSTRACT:
The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacetate vary from .gtoreq.1:1 to .gtoreq.13.2:1 depending on the functionality of both multifunctional acrylate and acetoacetate. Unuseable gelled or solid oligomer products occur below the claimed ranges. The liquid oligomers of this invention are further crosslinked to make coatings, laminates and adhesives.
REFERENCES:
patent: 5459178 (1995-10-01), Chan et al.
patent: 5539017 (1996-07-01), Rheinberger et al.
A Comparison of Catalysts for Crosslinking Acetoacetylated Resins via the Michael Reaction, by Robert J. Clemens and F. Del Rector of Eastman Chemical Products, Inc., Mar. 1989, vol. 61, No. 770.
Michael addition polymers from 1,4 and 1,3 benzenedimethanol diacetoacetates and tripropylene glycol diacrylate, by David L. Trumbo, The Glidden Company, 16651 Sprague Road, Strongsville, Ohio 44136, USA Polymer Bulletin No. 26, 265-270 (1991).
Michael addition polymers from bisacetoacetates, by David L. Trumbo, The Glidden Company, Strongsville, Ohio 44136, USA, Polymer Bulletin 26, 481-485 (1991).
Reaction behavior of monomeric .beta.-ketoesters, by Norbert Moszner, Volker Rheinberger, Ivoclar AG, Benderestrasse 2, FL-9494 Schaan, Liechtenstein Macromol, Rapid Commun. 16, 135-138 (1995).
Applications for Acetoacetyl Chemistry in Thermoset Coatings, by F. Del Rector, W. W. Blount and D. R. Leonard, Eastman Chemical Products, Inc., vol. 61, No. 771, Apr. 1989.
New Polymer Chemistry from Kodak, Eastman Kodak Company, Rochester, New York, Kodak publication JJ-86, New Polymer Chemistry from Koda, Mar. 1988.
Dammann Laurence
Loza Roman
Moy Thomas M.
Ashland Inc.
PIcken Mary E.
Yoon Tae
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