Mercaptan blocked thermosetting copolymers

Details Mercaptan blocked thermosetting copolymers Mercaptan blocked thermosetting copolymers

1976-09-20

1977-06-21

Schain, Howard E.

Stock material or miscellaneous articles

Composite

Of polyester

260 17R, 260 22CB, 260 22T, 260 23P, 260 23AR, 260 23EP, 260 40R, 260 42, 260 4252, 260851, 260856, 260870, 260872, 260873, 428500, C08F 2802, C08L 6706, C08L 6708

Patent

active

040312909

ABSTRACT:
Block copolymers can be prepared by reacting a polyester resin or a polyol with a hydroxyl or carboxyl functional mercaptan and subsequently reacting the mercapto-blocked polyester or polyol in the presence of peroxygen-type or azo-type catalyst, with selected alpha, beta-ethylenically unsaturated monomer(s), such as diacetone acrylamide, acrylic acid, methacrylic acid, ethyl acrylate, butyl acrylate, styrene, methyl methacrylate, methacrylonitrile and the like. Such block copolymers provide for coating compositions having physical properties which provide for useful protective and decorative films.

REFERENCES:
patent: 3118852 (1964-01-01), Christenson et al.
patent: 3169945 (1965-02-01), Hostettler et al.
patent: 3465057 (1969-09-01), Cameron et al.
patent: 3564076 (1971-02-01), Kauder

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