发明名称 |
Blow-molding polyesters from terephthalic acid, 2, 2, 4, 4-tetramethyl-1,3-cyclobutanediol, and ethylene glycol |
摘要 |
The invention relates to a copolyester, having (a) a repeat unit of a dicarboxylic acid component, having from 80 to 100 mole % terephthalic acid or the corresponding ester thereof, and from 0 to 20 mole % of a modifying aromatic dicarboxylic acid having less than or equal to 20 carbon atoms or the corresponding ester thereof, wherein the total mole % of dicarboxylic acid component is equal to 100 mole %; and (b) a repeat unit of a glycol component, having from 5 to 85 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol, ethylene glycol of from 15 to 95 mole %, and at least 1 mole % of a modifying glycol having from 3 to 16 carbon atoms, wherein the total mole % of glycol component is equal to 100 mole %. The invention also relates to a method of making the copolyester described above. The invention also relates to articles made from the copolyesters described above. The invention further relates to a method of determining the melt strength and sag of a polyester.
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申请公布号 |
US5989663(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19970997629 |
申请日期 |
1997.12.23 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
MORRIS, JOHN C.;BRADLEY, JAMES R.;SEO, KAB SIK |
分类号 |
C08G63/199;C08G63/85;(IPC1-7):B29D22/00;C08G63/00;B29D63/00 |
主分类号 |
C08G63/199 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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