Cold-stretched products comprising a propylene-based resin composition and process for producing the same
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsDisuke Matsumura, Mitsuyoshi Itada
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Abstract
Cold-stretched products comprising a propylene-based resin composition obtained by mixing (A) a polymer consisting mainly of propylene units, in a proportion of not more than 92% by weight and not less than 50% by weight, (B) a polymer consisting mainly of butene-1 units or an ethylene-.alpha.-olefin copolymer having a softening point of 95.degree. C. or lower, in a proportion of not more than 47% by weight and not less than 5% by weight, (C) a tackifier in a proportion of not more than 25% by weight and not less than 3% by weight, the sum of the proportions being 100% by weight; and a process for producing said cold-stretched products.
Claims3
A laminated oriented film comprising a crosslinked outer resin layer and a resin layer having sealing properties being used as an inner layer;
- said resin layer having sealing properties being a non-crosslinked and cold-stretched resin composed of a mixture of (A(, (B) and (C) as defined below:
- (A) a polymer consisting primarily of propylene units, in a proportion of not more than 92% by weight and not less than 50% by weight,
- (B) a polymer consisting mainly of butene-1 units, in a proportion of not more than 47% by weight and not less than 5% weight, and
- (C) a hydrogenated petroleum resin or a hydrogenated terpene resin in a proportion of not more than 35% by weight and not less than 3% by weight,
- the sum of the proportions being 100% by weight.
Dependencies are inferred from the claim text.