发明名称 |
COATED POLYESTER FILM AND POLYESTER/OLYOLEFIN LAMINATES PRODUCED THEREFROM |
摘要 |
A coated polyester film suitable for producing polyester/polyolefin laminates consists of biaxially oriented poly(ethylene terephthalate) film coated with a cross-linked styrene copolymer by deposition from an aqueous coating composition which comprises (A) a copolymer containing 50-75 mol % of styrene units and 25-50 mole % of comonomer units providing carboxylic groups (10-50 mole %) and alkyl carboxylate groups (20-50 mole %) and (B) a melamine/formaldehyde cross-linking agent. The styrene copolymer (A) is preferably a water-soluble copolymer of styrene and maleic anhydride partially converted into butyl ester and partially neutralized with ammonia, and the cross-linking agent (B) is conveniently hexamethoxymethylmelamine. The polyolefin layer in the laminates produced may in particular be of low-density polyethylene. |
申请公布号 |
ZA8205675(B) |
申请公布日期 |
1983.06.29 |
申请号 |
ZA19820005675 |
申请日期 |
1982.08.05 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
MCGRAIL PATRICK TERENCE |
分类号 |
B32B27/28;B32B27/36;C08J7/04 |
主分类号 |
B32B27/28 |
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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