Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1997-06-20
2000-08-22
Thibodeau, Paul
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428515, 428516, 428910, 525240, B32B 2732
Patent
active
061069388
ABSTRACT:
A polypropylene composition for a laminated and oriented film comprising (A) 73 to 97% by weight of a crystalline propylene random copolymer having a propylene content of 60 to 97% by weight, an ethylene content of 0 to 6% by weight and an .alpha.-olefin content of 3 to 40% by weight, (B) 2.5 to 17% by weight of a propylene- .alpha.-olefin random copolymer having a propylene content of 35 to 75% by weight and an .alpha.-olefin content of 25 to 65% by weight, and (c) 0.5 to 10% by weight of a crystalline propylene polymer. A polypropylene composition for a laminated and oriented film being film-formed for a long time without hurting a transparency and a low temperature heat-sealing property and having an excellent solvent resistance and an excellent hot-tack property, and a laminated and oriented film having this composition on a surface layer are provided.
REFERENCES:
patent: 4186240 (1980-01-01), Matsuda et al.
patent: 4726999 (1988-02-01), Kohyama et al.
patent: 5780168 (1998-07-01), Satoh et al.
Inagaki Katsunari
Ohara Jun
Satoh Makoto
Setoh Ritsuo
Sumitomo Chemical Company Ltd.
Tarazano D. Lawrence
Thibodeau Paul
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