Multilayer composites coextruded with the use of impact-reinforc

Details Multilayer composites coextruded with the use of impact-reinforc Multilayer composites coextruded with the use of impact-reinforc

1992-11-27

1993-07-27

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428516, 428520, 428 2, 2641761, 525 57, 525 74, B29D 2200, B29D 2300, B32B 2708, C08L 2904

Patent

active

052309355

ABSTRACT:
Multilayer composites coextruded with the use of polyolefins and of impact-reinforced impervious resin compositions based on hydrolysed copolymers of vinyl acetate and ethylene comprising, as an additive improving the impact strength, elastomeric copolymers of ethylene and propylene which are modified by grafting an .alpha.,.beta.-ethylenically unsaturated carboxylic acid and, preferably, by maleic anhydride.
The coextruded multilayer composites are very particularly suitable for the manufacture of fuel storage vessels combining impact strength and high imperviousness to petrol and to petrol/alcohol mixtures.

REFERENCES:
patent: 4409364 (1983-10-01), Schmukler et al.
patent: 4477532 (1984-10-01), Schmukler et al.
patent: 4600746 (1986-07-01), Schmukler

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