Preparation of thermoformed plastic articles

Details Preparation of thermoformed plastic articles Preparation of thermoformed plastic articles

C - Chemistry, Metallurgy

08

L

400/4902, 400/65

C08L 25/12 (2006.01)

Patent

CA 1283237

ABSTRACT "PREPARATION OF MOULDED ARTICLES" Moulded articles of uniform wall thickness are prepared by vacuum-forming or thermoforming a composition comprising a uniform blend of, as base resin, a moulding grade resin having a continuous phase of a first copolymer of a styrenic monomer and an ethylenically unsaturated nitrile and a minor proportion of, as additive resin, a second copolymer of a styrenic monomer and an ethylenically unsaturated nitrile having an ultra high molecular weight, the forming operation being carried out at least 50°C above the glass transition temperature of the base resin and at a stress level of at most 1 MPa.

505665

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