Polymer blends of tapered styrene-butadiene triblock thermoplast

Details Polymer blends of tapered styrene-butadiene triblock thermoplast Polymer blends of tapered styrene-butadiene triblock thermoplast

1989-07-05

1991-05-07

Lieberman, Allan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 71, 525 95, 525 98, C08L 2100, C08L 2506, C08L 3506, C08L 5302

Patent

active

050137905

ABSTRACT:
A thermoplastic blend useful for the preparation of molded articles comprising a thermoplastic polymer and a tapered triblock elastomer of a monovinylidene aromatic monomer and butadiene having a melt index (condition 200/5.0 ASTM method D1238-82) of 0.5 to 60 and an average molecular weight from 50,000 to 135,000.

REFERENCES:
patent: 3906057 (1975-09-01), Durst
patent: 3906058 (1975-09-01), Durst
patent: 4195136 (1980-03-01), Sato et al.
patent: 4196154 (1980-04-01), Tung
patent: 4267283 (1981-05-01), Whitehead
patent: 4680357 (1987-07-01), Biletch et al.
Abstract of Japanese Patent 56-62847, Sesume Oooka et al., 5/81.
K. van Henten, Plastica, (1972)25,4,144.
R. R. Durst et al., Toughness and Brittleness of Plastics, "Super High Impact Polystyrene", Advances in Chemistry Series, 154, ACS (1976).

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