POLYSTYRENE RESIN COMPOSITION AND ORIENTED POLYSTYRENE FILM

WIPO Patent Application WO/1996/017889

A1

A polystyrene resin composition comprising 90-99.99 wt.% of a highly syndiotactic polystyrene (SPS) and 10-0.01 wt.% of a spherical aluminosilicate with a pH of 5 to 11; an oriented polystyrene film made therefrom; another polystyrene resin composition comprising 99.2-99.95 wt.% of SPS and 0.8-0.05 wt.% of a spherical regular-shaped elastomer with an average particle diameter of 0.1-3 'mu'm and having a melt index of 1 to 50 as measured at 300 �C under the load of 2.16 kg; and an oriented polystyrene film made therefrom. The composition is excellent in melt heat stability and reduced in the generation of white powder in the continuous film-forming step, and can provide an oriented film excellent in slipperiness, dielectric breakdown voltage (AC) and tear strength. The obtained film is useful as various film base materials.

JPS58187418	【考案の名称】多管連結状板体の接続構造
JPS58167152	CONTINUOUS MANUFACTURE OF FIBER REINFORCED SHEET
JPH07290564	ALIPHATIC POLYESTER STRETCHED MOLDED OBJECT AND PRODUCTION THEREOF

FUNAKI KEISUKE (JP)
OKADA AKIHIKO (JP)
UCHIDA TAKAAKI (JP)

PCT/JP1995/002420

June 13, 1996

November 28, 1995

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IDEMITSU PETROCHEMICAL CO (JP)
FUNAKI KEISUKE (JP)
OKADA AKIHIKO (JP)
UCHIDA TAKAAKI (JP)

B29C55/00; C08J5/18; C08K3/34; C08K3/36; C08K7/18; C08L25/06; C08L33/00; (IPC1-7): C08L25/00; B29C55/02; B29C55/20; C08K3/34; C08L9/00; C08L9/10; C08L21/00; C08L21/02; C08L51/00; C08L53/00

JPH0374437A	1991-03-29
JPH03109453A	1991-05-09
JPH06297563A	1994-10-25
JPH06114925A	1994-04-26
JPH03149206A	1991-06-25
JPH01146944A	1989-06-08
JPH01182350A	1989-07-20
JPH04279646A	1992-10-05
JPH05271501A	1993-10-19
JPH01108244A	1989-04-25
JPH01156333A	1989-06-19
JPS63130650A	1988-06-02

See also references of EP 0747432A4

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