C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 53/02 (2006.01) B41M 1/00 (2006.01) B41M 1/04 (2006.01) C08F 287/00 (2006.01) G03F 7/033 (2006.01) G03F 7/038 (2006.01) G03F 7/075 (2006.01)
Patent
CA 2228530
A photopolymerizable composition for the preparation of flexographic printing forms for corrugated board direct printing comprising a radial (polystyrene-polybutadiene)n X block copolymer, with X = Sn or Si and n = 2 or 4, with an average molecular weight (M w) of 80,000-300,000, a molecular weight distribution (M w/M n) of 1.00-1.40, a content of di- block copolymers of less than 15% by weight, which is extended up to 50% by weight of a paraffinic oil.
Kraska Ursula
Simon Reimund
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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