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Weatherable block copolyestercarbonates and blends containing them, and method

  • US 6,559,270 B1
  • Filed: 10/12/1999
  • Issued: 05/06/2003
  • Est. Priority Date: 10/29/1998
  • Status: Expired due to Term
First Claim
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1. A block copolyestercarbonate comprising organic carbonate blocks alternating with arylate blocks, said arylate blocks comprising arylate structural units derived from at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid and having a degree of polymerization of at least about 4.

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