Claims
- 1. A protective multi-layer biaxially heat-shrinkable patch in combination with a biaxially heat shrinkable bag, said patch comprising:(a) a first outer non-foamed polymeric layer, (b) an inner foamed polymeric layer, and (c) a second outer non-foamed polymeric layer wherein the patch is adhered on the outside of the biaxially heat shrinkable bag.
- 2. The bag and patch of claim 1, wherein the patch material has been cross-linked by irradiation to the equivalent of a dosage level in the range between 4.5 to 13 MR.
- 3. The bag and patch of claim 1, wherein the patch comprises six layers.
- 4. The bag and patch of claim 1, wherein layer (c) comprises an adhesive polymer and the patch has been self-welded to form the structure: a/b/c/c/b/a.
- 5. The bag and patch of claim 1, wherein the material of layers (a) and (c) comprise 80 to 100% by weight linear low density polyethylene blended with 0 to 20% by weight ethylene-vinyl acetate copolymer having 7 to 12% by weight vinyl acetate content and with 0 to 3% by weight pigments and additives, and layer (b) comprises a foamed ethylene-vinyl acetate copolymer.
- 6. The bag and patch according to claim 1, wherein(I) said outer layers of the patch comprise a blend of: linear low density polyethylene, and ethylene-vinyl acetate copolymer, and (II) the foamed inner layer comprises ethylene-vinyl acetate copolymer.
- 7. The bag and patch of claim 1, wherein at least one of layer (a) or layer (c) comprises a blend of a major amount of 50% or more by weight of linear low density polyethylene and a minor amount of less than 50% by weight of ethylene vinyl acetate copolymer, wherein said ethylene vinyl acetate has a vinyl acetate content in the range from 7% to 12% by weight, and wherein layer (b) comprises an ethylene vinyl acetate copolymer that has a vinyl acetate content in the range from 20% to 35% by weight.
Parent Case Info
This application is a continuation of application Ser. No. 07/694,710 filed on May 2, 1991, now abandoned.
US Referenced Citations (20)
Foreign Referenced Citations (3)
Number |
Date |
Country |
1122888 |
Aug 1988 |
AU |
982923 |
Feb 1976 |
CA |
2062417 |
Jun 1972 |
DE |
Non-Patent Literature Citations (1)
Entry |
“Foam Concentrates” (Ampacet Product Information Brochure), Jul. 1988, pp. 1-4. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
07/694710 |
May 1991 |
US |
Child |
08/180521 |
|
US |