Transparent heat-sealing film

Details Transparent heat-sealing film Transparent heat-sealing film

2005-06-07

2005-06-07

Nolan, Sandra M. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S346000, C428S348000, C428S483000

Reexamination Certificate

active

06902795

ABSTRACT:
A heat-stealing film having a baze of not more than 30% and having a sealant layer made of a resin composition which comprises from 50 to 100 wt % of the total of the following components (a) to (c); (a) from 5 to 50 wt % of a block copolymer of from 50 to 95 wt % of a styrene-type hydrocarbon and from 5 to 50 wt % of a conjugated diene-type hydrocarbon, (b) from 5 to 50 wt % of an ethylene/α-olefin random copolymer, and (c) from 5 to 70 wt % of a block copolymer of from 10 to 50 wt % of a styrene-type hydrocarbon and from 50 to 90 wt % of a conjugated diene-type hydrocarbon, and (d) from 0 to 50 wt % of and impact-resistant polystyrene.

REFERENCES:
patent: 5208103 (1993-05-01), Miyamoto et al.
patent: 5599621 (1997-02-01), Akhter
patent: 5670254 (1997-09-01), Akhter
patent: 6183842 (2001-02-01), Shimizu et al.
patent: 0 437 745 (1991-07-01), None
patent: 8-118566 (1996-05-01), None
Chemical Abstract, JP 54-120646, Sep. 19, 1979.

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