发明名称 |
POLYESTER POLYMER PRODUCTS |
摘要 |
Refillable polyethylene terephthalate (PET) bottles are made by injection stretch blow moulding and comprise a threaded neck of transparent amorphous substantially non-oriented PET; a substantially cylindrical body of transparent biaxially oriented amorphous PET from 0.4 to 0.9 mm thick and an area expansion ratio of at least 7; and a base of transparent amorphous substantially non-oriented or partly oriented PET in which the PET is a polyethylene terephthalate polymer randomly modified by replacing from 1 to 6 mole % of the terephthalate units with units of a chain orientation disrupting aromatic dicarboxylic acid, such as iso-phthalic acid, having an Intrinsic Viscosity of at least 0.75. The polymer particularly includes fine metal particles especially of antimony to reduce the reheat, and optionally includes a level of diethylene glycol residues greater than normally present in PET to improve the blowing performance of the polymer. |
申请公布号 |
ZA9104589(B) |
申请公布日期 |
1992.03.25 |
申请号 |
ZA19910004589 |
申请日期 |
1991.06.14 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC. |
发明人 |
KENNETH MORGAN JONES;GRAHAM PATON KERR;NEIL TINDALE |
分类号 |
B29C49/06;B29C49/00;B29C49/08;B29K67/00;B29L22/00;C08G63/181;C08G63/83;C08G63/85;C08G63/86;C08K3/08 |
主分类号 |
B29C49/06 |
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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