Articles resistant to attack by fatty substances, made from poly

Details Articles resistant to attack by fatty substances, made from poly Articles resistant to attack by fatty substances, made from poly

1978-03-30

1980-02-12

Ziegler, J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428517, 428521, 525 69, 525 95, B65D 8102, C08L 5302

Patent

active

041884329

ABSTRACT:
Shaped articles which are resistant to attack by fatty substances and chemicals and which have impact resistance comparable to high impact polystyrene are produced by extrusion or injection molding of a composition consisting essentially of high impact styrene-butadiene graft copolymer or a mixture thereof with no more than about 55% styrene homopolymer and small proportions of polyethylene or polypropylene and of a block copolymer X-Y-X in which each X is a polystyrene block of about 5,000 to 10,000 molecular weight and Y is a hydrogenated polybutadiene block of 25,000 to 50,000 molecular weight. The articles are characterized by having a skin which is substantially enriched in polyolefin.

REFERENCES:
patent: 3894117 (1975-07-01), Agouri et al.
patent: 4031166 (1977-06-01), Bronstert et al.
patent: 4076768 (1978-02-01), Saunders et al.

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