Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1989-08-21
1992-02-18
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524413, 524445, 524447, 524449, 524451, 524452, 524456, 524508, 524514, 524539, 524847, C08F 800, C08L 6702
Patent
active
050895532
ABSTRACT:
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.
REFERENCES:
patent: 3639527 (1972-02-01), Brinkmann et al.
patent: 4322335 (1982-03-01), Nield
patent: 4548978 (1985-10-01), Garrison, Jr.
patent: 4772652 (1988-09-01), Yoshifumi et al.
patent: 4931538 (1990-06-01), Yoshifumi et al.
Hara Kazuo
Takamoto Katsunori
Umeda Takashi
Yokota Shin-ichi
Zemba Seiichi
Idemitsu Petrochemical Co. Ltd.
Kuraray Company Limited
Lee Yong S.
Morgan Kriellion S.
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