CLEAR BARRIER COMPOSITE CONTAINING POLYISOBUTYLENE/POLYOLEFIN ALLOY COMPONENTS

ABSTRACT OF THE DISCLOSURE A composite film composition comprising a rub-ber containing core layer wherein the layer comprises about 50 to 85 wt% rubber and 15 to 40 wt% of a polyole-fin and at least one polyolefin skin layer co-extruded onto said core layer. In a preferred embodiment, the core laye...

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Bibliographic Details
Main Authors KRESGE, EDWARD N, HAZELTON, DONALD R, MIDDLESWORTH, JEFFREY A, SHULMAN, CINDY B
Format Patent
LanguageEnglish
French
Published 23.01.1990
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:ABSTRACT OF THE DISCLOSURE A composite film composition comprising a rub-ber containing core layer wherein the layer comprises about 50 to 85 wt% rubber and 15 to 40 wt% of a polyole-fin and at least one polyolefin skin layer co-extruded onto said core layer. In a preferred embodiment, the core layer comprises about 55 to about 70 wt% PIB and about 30 to about 45 wt% of PP or RCPP having been co-extruded to be sandwiched between two polyolefin layers comprising PP or RCPP.
Bibliography:Application Number: CA19850483233