| 摘要 |
<p>1282989 Coated products FORD MOTOR CO Ltd 29 Sept 1970 [24 Dec 1969] 46182/70 Heading B2E [Also in Division C3] Various substrates may be coated by applying thereto a paint comprising a resin prepared by (1) reaction of a siloxane having at least 2 hydroxy and/or alkoxy groups per molecule attached to silicon atoms with sufficient of a monoester of a C 2-8 diol and acrylic or methacrylic acid to react with at least 2 of the hydroxy or alkoxy groups, (2) reaction of the product with a mixture of vinyl monomers containing glycidyl acrylate or methacrylate, and (3) reacting the copolymer with acrylic or methacrylic acid sufficient to react with at least half of the glycidyl groups. The siloxane preferably has 2-5 OH or alkoxy groups; suitable hydroxy acrylates and vinyl monomers are listed. The resin product may be dissolved in a liquid vinyl monomer to give a paint binder. In Example 1 a siloxane having 3-4 methoxy groups and MW 700-800 is condensed with hydroxyethyl acrylate; the product is copolymerized with ethyl acrylate, methyl methacrylate, and glycidyl methacrylate; the copolymer is heated with acrylic acid; the product is mixed with methyl methacrylate, applied to a metal substrate and cured by electron beam irradiation. In other Examples the siloxane is replaced by a cyclic siloxane having 4 OH groups and MW 1600 (Ex 8); the hydroxyethyl acrylate by hydroxyethyl methacrylate or 2-hydroxyoctyl acrylate (Ex's 9 and 10); the glycidyl methacrylate by the acrylate (Ex 7); the acrylic acid by methacrylic acid (Ex 14); and the metal by glass, wood, ABS, or cotton fabric; in Ex's 3-4 and 10-13 the methyl methacrylate in the binder is mixed with various selections from styrene, divinyl benzene, ethyl acrylate, 2-ethylhexyl acrylate, butyl methacrylate, vinyl acetate, vinyl chloride and acrylonitrile, in Ex 5 TiO 2 is added to give a paint.</p> |
