C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2009, 400/30
C08G 18/83 (2006.01) C08G 18/68 (2006.01)
Patent
CA 1300774
Abstract of the Disclosure Hydroxy functional polyester graft copolymers are provided, The copolymer is crosslinkable by hydroxy-reactive crosslinking agent and, in particular, is suitable for use in thermosetting coating compostions adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic. The copolymer has a number average molecular weight between about 1300 and about 15,000, has a hydroxyl number between about 30 and about 300, and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polyester macromer. The macromer is the reaction product of (i) hydroxy functional polyester reactant containing 0-10 urethane linkages per molecule with (ii) silane compound having the general chemical formula: CH2 = Image wherein X is an organic group or (-Si-O-)n, n being 1-50, and X' is independently an organic group, hydroxy-reactive functionality, or an organic group comprising hydroxy-reactive functionality, at least one X' comprising hydroxy-reactive functionality.
581894
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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