Patent EP0047634A1 successfully refreshed from Google Patents.
EP0047634A1
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EP
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Self-tacking wrap film
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1981-09-03
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Granted: —
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Expires: 2001-09-03
Abstract
Abstract This invention relates to a self-tacking wrap film made from polypropylene resin composition as the main material, and whose residue of extraction with n-heptane is from 95 wt% to 30 wt%. This self-tacking wrap film of the present invention is suitable for use in the electric microwave oven. At least one additive such as surfactant, nucleating agent, polyethylene and other property improving material can be included in order to prevent blocking, and to improve cutting.
Inventors
- 👤 Sin Hosonuma
- 👤 Akira Kawano
- 👤 Hiroshi Makiguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:25
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L2205/00; C08L2205/02; C08L2207/00; C08L2207/10; C08L2207/14; C08L23/04; C08L57/00; C08L57/02; C08L91/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
Self-tacking wrap film suitable for electric microwave oven use characterized in that the film is made from a polypropylene resin composition as the main material, and having a residue of extraction with n-heptane of from 95 wt% to 30 wt%.
Claim 2
Dependent Claim
40 words
Self-tacking wrap film suitable for electric microwave oven use characterized in that the film is made from a polypropylene resin composition as the main material, and having a residue of extraction with n-heptane of from 95 wt% to 30 wt%.
Claim 3
Dependent Claim
24 words
Self-tacking wrap film according to claim 1 wherein the polypropylene resin composition contains at least one additive for improving the properties of the material.
Claim 4
Dependent Claim
17 words
Self-tacking wrap film according to claim 2 wherein the improving material is a surfactant for inhibiting blocking.
Claim 5
Dependent Claim
32 words
Self-tacking wrap film according to claim 2 or claim 3 wherein the improving material is a nucleating agent which increases the crystallizing temperature of the polypropylene resin composition by more than 2°C.
Claim 6
Dependent Claim
28 words
Self-tacking wrap film according to claim 2, claim 3 or claim 4 wherein the improving material is polyethylene having an average molecular weight of from 500 to 30,000.
References Cited (Backward Citations)
AT292298B
Cited
FR2323751A1
Cited
GB1516420A
Cited
BE836750A
Cited
DE2756614A1
Cited
DE2756486A1
Cited
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