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US 6,743,520 B2Granted
Polymeric film
AssigneeDuPont Teijin Films U.S. Limited Partnership
InventorsAndrew Street, Allan Lovatt, Jane Constance Campbell, Hikaru Takeuchi, Sumio Wakabayashi, Yasuo Fujieda
Life of this patent
Estimating the term…
Abstract
A primer useful in the preparation of an anti-fouling surface contains (I) a copolymer formed from acrylates, free carboxyl group containing monomer and an aromatic sulfonic acid or salt, an acrylic polymeric resin and a cross-linking agent.
Claims16
A composition comprising:
- (i) a copolymer of (a) 35 to 40 mole % alkyl acrylate, (b) 35 to 40 % alkyl methacrylate, (e) 10 to 15 mole % of a comonomer containing a free carboxyl group, and (d) 15 to 20 mole % of an aromatic sulphonic acid and/or salt thereof;
- (ii) an acrylic and/or methacrylic polymeric resin;
- and
- (iii) a cross-linking agent.
1 more element
A polymeric film comprising a substrate of one or more layers of polymeric material and a primer layer, wherein said primer layer is a composition comprising:
- (i) a copolymer of (a) 35 to 40 mole % alkyl acrylate, (b) 35 to 40 % alkyl methacrylate, (c) 10 to 15 mole % of a comonomer containing a free carboxyl group, and (d) 15 to 20 mole % of an aromatic sulphonic acid and/or salt thereof;
- (ii) an acrylic and/or methacrylic polymeric resin;
- and
- (iii) a cross-linking agent.
1 more element
Dependencies are inferred from the claim text.