| 摘要 |
The clear blends of this invention are unique compositions of matter and are prepared by blending polyesters prepared from terephthalic acid, 40 to 5 mole % 2,2,4,4-tetramethy-1,3-cyclobutanediol and 60 to 95 mole % 1,4-cyclohexanedimethanol with a copolyestercarbonate comprising a bisphenol A diol component and 50-90 mole % isophthalic acid and 0-60 mole % terephthalic acid and 0 to 60 mole % carbonic acid. The composition of the blend includes up to about 95 weight % the copolyestercarbonate. These blends have a combination of clarity and toughness making the materials particularly useful in engineering molding plastics and packaging.
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