Claims
- 1. A heat-shrinkable Lichtenberg discharge marks free tube comprising a crosslinked ionomer resin composition layer,
- said ionomer resin layer being crosslinked by electron beam irradiation and consisting essentially of a blend of (a) an ionomer resin having a structure in which a copolymer of ethylene and acrylic or methacrylic acid has been intermolecularly crosslinked with potassium ions and (b) an ionomer resin having a structure in which a copolymer of ethylene and acrylic or methacrylic acid has been intermolecularly crosslinked with one or both of sodium ions and zinc ions, the proportion of said ionomer resin (a) to said ionomer resin (b) being from 100/0 to 50/50 by weight.
- 2. A heat-shrinkable tube as claimed in claim 1, wherein the proportion of said ionomer resin (a) to said ionomer resin (b) is from 100/0 to 60/40.
- 3. A heat-shrinkable tube as claimed in claim 1, further comprising an adhesive layer on the inner surface of said ionomer resin composition layer.
- 4. A heat-shrinkable tube as claimed in claim 3, wherein the adhesive layer comprises a resin composition containing an ethylene-ethyl acrylate-carbon monoxide copolymer.
- 5. A heat-shrinkable tube as claimed in claim 1, wherein the tube is clear, colorless, and transparent.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-227793 |
Aug 1992 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/100/924 filed Aug. 3, 1993.
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4915139 |
Landry et al. |
Apr 1990 |
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5179168 |
Hirasawa |
Jan 1993 |
|
5209983 |
Case et al. |
May 1993 |
|
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Number |
Date |
Country |
0259246 |
Mar 1988 |
EPX |
0273341 |
Jul 1988 |
EPX |
04093340 |
Mar 1993 |
JPX |
Non-Patent Literature Citations (2)
Entry |
European Search Report, Communication, and Annex for EP 93 11 2519. |
Rose, Condensed Chemical Dictionary, 1966, p. 510. |
Continuations (1)
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Number |
Date |
Country |
Parent |
100924 |
Aug 1993 |
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