Laminated sheets or films and moldings thereof

Details Laminated sheets or films and moldings thereof Laminated sheets or films and moldings thereof

B - Operations, Transporting

32

B

B32B 27/28 (2006.01) B29C 51/14 (2006.01) B32B 27/08 (2006.01) C08L 25/12 (2006.01) C08L 51/00 (2006.01)

Patent

CA 2221266

The laminated sheet or film comprises (1) a substrate layer comprising - based on the sum of the amounts of components A and B and, if used, C and/or D, which totals 100% by weight a 1 - 99% by weight of a particular graft copolymer as component A, b 1 - 99% by weight of a copolymer of b1 40 - 100% by weight of units of styrene, a substituted styrene or a (meth)acrylate, or mixtures thereof, as component B1, b2 up to 60% by weight of acrylonitrile or methacrylonitrile as component B2, as component B, C 0 - 80% by weight of polycarbonates as component C, and d 0 - 50% by weight of fibrous or particulate fillers or mixtures thereof as component D, and (3) a transparent top layer of polymethyl methacrylate.

La feuille ou la pellicule laminée comprend 1) une couche de substrat comprenant - par rapport à la somme des quantités des constituants A et B et, le cas échéant, C et/ou D, qui totalisent 100 % en poids, a) 1 - 99 % en poids d'un copolymère par greffage particulier comme constituant A, b) 1 - 99 % en poids d'un copolymère de : b1) 40 - 100 % en poids d'unités de styrène, de styrène substitué ou de (méth)acrylate, ou des mélanges de ces derniers, comme constituant B1, b2) jusqu'à 60 % en poids d'acrylonitrile ou de méthacrylonitrile comme constituant B2, comme constituant B, c) 0 - 80 % en poids de polycarbonates comme constituant C, et d) 0 - 50 % en poids de charges de nature fibreuse ou particulaire ou des mélanges de ces dernières comme constituant D, et 3) une couche supérieure transparente de poly(méthacrylate de méthyle).

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