ARTICLES COMPRISING LOW TEMPERATURE HEAT-SEALABLE POLYESTER
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United States of America Patent
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app pub date -
Nov 11, 2016
filing date -
Nov 16, 2015
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Abstract
An article such as a film or sheet comprises a heat-sealable polyester composition having an amorphous processing window ranging from a Tg in the range of about 40 to about 70° C., to a Tcg in the range of about 70 to about 150° C. The composition comprises poly(trimethylene furandicarboxylate) homopolymer or copolymer, or a blend of poly(trimethylene furandicarboxylate) homopolymer or copolymer with other polymers such as poly(alkylene furandicarboxylate) homopolymer or copolymer or poly(alkylene terephthalate) homopolymer or copolymer. The resulting composition is heat-sealable at low temperatures, and exhibits superior barrier properties compared to poly(ethylene terephthalate).
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