Abstract: There is disclosed a new process for preparing coupled and coextruded multilayer articles (consisting of two or more layers) made of thermoplastic materials, and closed-surface bodies comprising the same.
Type:
Grant
Filed:
June 5, 1978
Date of Patent:
January 13, 1981
Assignees:
Montedison S.p.A., Leone Ortolani
Inventors:
Franco Ranalli, Leone Ortolani, Quinto Tisi
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