C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/5356, 204/91
C08F 299/06 (2006.01) C08G 18/61 (2006.01) C08G 18/67 (2006.01) C09D 4/00 (2006.01) C09D 175/16 (2006.01) C09D 183/12 (2006.01)
Patent
CA 1259725
POST-FORMABLE RADIATION-CURING COATINGS ABSTRACT Radiation curable, post-formable liquid coating compositions which cure on radiation exposure to provide coatings which resist exterior exposure are disclosed. These comprise: 1- a silicone dicarbinol diurethane diacrylate or dimethacrylate in which the carbinol groups are carried by an ethoxylate constituting from 30% to 70% of the silicone dicarbinol; 2- a linear dihydroxy-functional C4-C8 dicarboxylic acid-C2-C4 diol polyester diurethane diacrylate or dimethacrylate based on a polyester having an average molecular weight in the range of 600 to 2000; 3- isobornyl acrylate or methacrylate; and 4- acrylic or methacrylic acid. Components 1 and 2 together provide from 30% to 50% of the composition, with component 2 being present in an amount of from 0% to 65% of the total of components 1 and 2, component 3 is present in an amount of at least 30% of the composition and provides coating viscosity, and component 4 is present in an amount of at least 3% of the composition. When acrylic materials are used, and when a photoinitiator is present, ultraviolet radiation can be used to provide the radiation cure.
478036
Desoto Inc.
Fetherstonhaugh & Co.
LandOfFree
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