Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1985-11-14
1987-11-24
Bleutge, John G.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525533, 523454, 523455, 523464, C08G 6306, C08G 6308
Patent
active
047089954
ABSTRACT:
A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as 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 epoxy-polyester graft copolymer is the product of polymerization of lactone members in the presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the reaction product of diepoxide chain extended with diphenol and chain terminated with acid component comprising primary hydroxy functional acid. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree. C. and the polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy functional epoxy ester resin precursor and between about 90 and about 20 weight percent lactone monomers.
REFERENCES:
patent: 2890208 (1959-06-01), Young et al.
patent: 3203920 (1965-08-01), Nickles et al.
patent: 3215757 (1965-11-01), Scheibli et al.
patent: 3382210 (1968-05-01), Wyart et al.
patent: 3707526 (1972-12-01), Gannon et al.
patent: 3792112 (1974-02-01), Gannon et al.
patent: 3816280 (1974-06-01), Watt
patent: 3951891 (1976-04-01), Topfi et al.
patent: 3960979 (1976-06-01), Khanna
patent: 4018848 (1977-04-01), Khanna
patent: 4119595 (1978-11-01), Bauer et al.
patent: 4148772 (1979-04-01), Marchetti et al.
patent: 4196270 (1980-04-01), Chattha
patent: 4252935 (1981-02-01), Anderson et al.
patent: 4296005 (1981-11-01), Di Benedette
patent: 4343925 (1982-08-01), Chang et al.
patent: 4436878 (1984-03-01), Batzill et al.
patent: 4569973 (1986-02-01), Tyrell et al.
Dervan Andrew H.
Grebur Dennis J.
Kordomenos Panagiotis I.
Bleutge John G.
E. I. Du Pont de Nemours and Company
Fricke Hilmar L.
Sellers II Robert E. L.
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