Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1997-08-22
1999-11-02
Thibodeau, Paul
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
156332, 1562441, 26417312, 428463, 428515, 428520, B32B 1508
Patent
active
059766522
ABSTRACT:
The present invention relates to polypropylene film-adhesion promoter-metal laminates, adhesion promoter used being polypropylene modified with carboxyl groups and/or anhydride groups. Polypropylene random copolymers of 90 to 99% by weight, preferably 93 to 99% by weight, of propylene and 1 to 10% by weight, preferably 1 to 7% by weight, of comonomers, having a molecular weight distribution M.sub.w :M.sub.n in the range from 2 to 10, preferably 3 to 6, and a melt flow index MFI 230.degree. C./2.16 kg in the range of 1 to 20 g/10 min, preferably in the range from 4 to 15 g/10 min, are used for the production of the polypropylene film.
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Kiriazis Leonidas
Krause Siegfried
Chirgott Paul S.
PPG Industries Inc.
Tarazano D. Lawrence
Thibodeau Paul
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