POLYSTYRENE-BASED RESIN COMPOSITION

Japanese Patent JP2003012739

A

To obtain a new polystyrene-based resin composition giving a grafted rubber having a sufficiently low glass transition point and a high graft rate by using a polybutadiene having a specific structure as a rubbery polymer.

This polystyrene-based resin composition comprising a styrenic monomer, an unsaturated nitrile-based monomer and a rubbery polymer is characterized in that the rubbery polymer is a modified polybutadiene obtained by modifying a raw material polybutadiene having the following characteristics with a transition metal catalyst. The characteristics of the raw material polybutadiene: (1) the butadiene monomer units comprise 4 to 30 mol.% of 1,2-structure units, 65 to 95 mol.% of cis-1,4-structure units, and ≤5 mol.% of trans-1,4-structure units; and (2) the ratio (Tcp/ ML1+4) of a toluene solution viscosity (Tcp) to a Mooney viscosity (ML1+4) at 100°C is ≥2.5.

JP7086563	Polymers and methods for producing them for use in compositions for metal-plated molded products, compositions for metal-plated molded products, and metal-plated molded products.
WO/2001/066640	POLYCARBONATE MOLDING MATERIALS CONTAINING GRAFT RUBBER
JP2011026378	RUBBER-REINFORCED STYRENE-BASED RESIN

MURAKAMI MASATO
SUZUKI MICHINORI
ASANO YUKIHIKO

JP2001196244A

January 15, 2003

June 28, 2001

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UBE INDUSTRIES

C08F279/04; C08F8/48; C08F36/00; C08F36/06; (IPC1-7): C08F279/04; C08F8/48; C08F36/06

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