US 2012/0070661 A1 · PRESSURE-SENSITIVE ADHESIVE TAPE

Abstract

A pressure-sensitive adhesive tape according to an embodiment of the present invention includes, a pressure-sensitive adhesive layer; and a base layer, wherein: the pressure-sensitive adhesive layer contains an amorphous propylene- (1-butene) copolymer polymerized by using a metallocene catalyst, the amorphous propylene-(1-butene) copolymer having a weight-average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less; and the base layer contains an ethylene-vinyl acetate copolymer.

Claims6

Dependent claims

A pressure-sensitive adhesive tape, comprising:

a pressure-sensitive adhesive layer;
and
a base layer, wherein:
the pressure-sensitive adhesive layer contains an amorphous propylene-(1-butene) copolymer polymerized by using a metallocene catalyst, the amorphous propylene-(1-butene) copolymer having a weight-average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less;
and
the base layer contains an ethylene-vinyl acetate copolymer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/232,476Filed 14 Sep 2011

Priority

JP 2010-20782716 Sep 2010

Published

22 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C09J 123/142
Copolymers of propene: at least partially crystalline copolymers of propene with other olefins
C09J 7/22
Characterised by their carriers: plastics; Metallised plastics
C09J 7/24
Plastics; Metallised plastics: based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/38
Characterised by the adhesive composition: pressure-sensitive adhesives [PSA]

Pressure-sensitive adhesive tape

Life of this patent

Pressure-sensitive adhesive tape

Life of this patent

Abstract

Claims6