C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
204/109, 204/91.
C08F 2/46 (2006.01) B29C 35/08 (2006.01) B29D 11/00 (2006.01) B32B 37/00 (2006.01) B32B 37/24 (2006.01) B32B 38/04 (2006.01) C08J 3/28 (2006.01) C08J 7/18 (2006.01) G11B 7/26 (2006.01)
Patent
CA 2009718
A microstructure-bearing composite plastic article can be superior, both in microstructure and in physical properties, when it is a composite of a tough, flexible substrate, at a surface of which is microstructure formed of a cured oligomeric resin having hard segments and soft segments, which cured resin is substantially confined to the microstructure portion of the composite. Such a composite plastic article can be made by depositing an uncured oligomeric resin composition onto a master negative molding surface in an amount barely sufficient to fill the cavities of the master, filling the cavities by moving a bead of the composition between a substrate and the master, and curing the deposited composition by ultraviolet radiation while keeping the temperature during curing to not more than 50°C above the typical use temperature of the finished composite plastic article.
Lu Shih-Lai
Williams Todd R.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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