B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/28 (2006.01) B29C 47/06 (2006.01) B32B 27/36 (2006.01) C08G 64/04 (2006.01) C08J 5/18 (2006.01) C08L 69/00 (2006.01)
Patent
CA 2434999
A multi-layer product comprising a coex layer and a base layer is disclosed. The coex layer contains a copolycarbonate derived from repeat units having the formula (I) Image where R1 to R4 are defined and repeat units having the formula (II) Image where R5 to R8 and X are defined. The base layer contains a polycarbonate characterized in that its chemical resistance is lesser than that of said copolycarbonate. The product is characterized by its improved resistance to chemical attack. Also disclosed are a uses of, and a method for producing the product.
Anders Siegfried
Gorny Rudiger
Kratschmer Silke
Nising Wolfgang
Roelofs Marco
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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