发明名称 |
Copolymerized polyester compositions |
摘要 |
The present invention relates to a novel copolymerized composition characterized in that it comprises (A) 100 parts by weight of a copolymerized polyester containing (a) an aromatic dicarboxylic acid unit composed mainly of a terephthalic acid unit, (b) a glycol unit composed mainly of an ethylene glycol unit, (c) a polytetramethylene glycol unit, (d) a polyethylene glycol unit and (e) an aliphatic dicarboxylic acid unit having 9 or more carbon atoms, (B) 5 to 150 parts by weight of a reinforcing substance and (C) 1 to 10 parts by weight of a metal salt of an ionic copolymer. The copolymerized polyester compositions of the present invention retain excellent heat resistance and rigidity that the glass fiber-reinforced polyethylene terephthalate compositions possess originally and are considerably improved in terms of low-temperature moldability, toughness, alkali resistance and like other factors.
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申请公布号 |
US5089553(A) |
申请公布日期 |
1992.02.18 |
申请号 |
US19890397034 |
申请日期 |
1989.08.21 |
申请人 |
IDEMITSU PETROCHEMICAL CO., LTD.;KURARAY COMPANY LIMITED |
发明人 |
UMEDA, TAKASHI;ZEMBA, SEIICHI;HARA, KAZUO;TAKAMOTO, KATSUNORI;YOKOTA, SHINICHI |
分类号 |
C08G63/672;C08L67/02 |
主分类号 |
C08G63/672 |
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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