Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-10-05
1990-02-20
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525454, 524315, 524317, 524361, 524363, 524364, C08G 6308, C08G 6318, C08G 6320, C08L 6702
Patent
active
049027565
ABSTRACT:
A solvent-based thermosetting coating composition comprising a hydroxy functional urethane modified polyester resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.
REFERENCES:
patent: 4524192 (1985-06-01), Alexander et al.
patent: 4533703 (1985-08-01), Kordomenos et al.
patent: 4533704 (1985-08-01), Alexander et al.
Dervan Andrew H.
Kordomenos Panagiotis I.
Semanision Tab
E. I. Du Pont de Nemours & Co.
Fricke Hilmar L.
Lieberman Allan M.
Sellers II Robert E. Lee
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