Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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Filing date
Publication date
Priority claimed from GB1399574Aexternal-prioritypatent/GB1452424A/en
Priority claimed from AU86913/75Aexternal-prioritypatent/AU490832B2/en
Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Publication of ES433288A1publicationCriticalpatent/ES433288A1/en
Process for the production of a multilayer film, characterized in that it comprises forming a substrate layer of a polymer or copolymer of an alpha-olefin whose molecule contains from 2 to 6 carbon atoms; applying to at least one of the surfaces of the substrate a layer of a copolymer of propylene and another alpha-olefin, whose molecule contains from 4 to 10 carbon atoms, the propylene content of the copolymer being from 80 to 95% by weight of the copolymer and the degree of crystallinity of the propylene copolymer being from 35 to 65%, before incorporation into the multilayer film. (Machine-translation by Google Translate, not legally binding)
ES433288A1974-03-291974-12-23Procedure for the production of a multiple layer film. (Machine-translation by Google Translate, not legally binding)
ExpiredES433288A1
(en)