Rigid and semirigid thermoplastic structures with multiple coext

Details Rigid and semirigid thermoplastic structures with multiple coext Rigid and semirigid thermoplastic structures with multiple coext

1985-07-17

1987-09-22

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428520, 428522, B32B 702

Patent

active

046955062

ABSTRACT:
The thermoplastic structures incorporate an inner vinylidene chloride copolymer layer, each face of which is bonded to a vinyl chloride polymer (2) layer through the intermediacy of a separate intermediary vinyl chloride polymer (1) layer whose gel temperatrue and dynamic viscosity are lower than those of the adjacent vinyl chloride polymer (2).
The thermoplastic structures with multiple coextruded polymeric layers may be in the form of sheets, plaques, tubes or rigid or semirigid hollow bodies, which can be employed in the field of packaging.

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