Coated polyolefin films having a low adherence to the welding ba

Details Coated polyolefin films having a low adherence to the welding ba Coated polyolefin films having a low adherence to the welding ba

1978-10-23

1981-05-19

Cannon, James C.

Stock material or miscellaneous articles

Composite

Of epoxy ether

2065243, 2065246, 229 53, 426127, 427416, 4274123, 428484, 428522, 428523, 428910, B05D 310, B32B 2706, B65D 2902

Patent

active

042685788

ABSTRACT:
There are disclosed polyolefinic films carrying two coatings, the first coating consisting of amino compounds and the second of a mixture of vinyl or vinylidene polymers or copolymers, epoxy resins and microcrystalline waxes, and which films, by virtue of the coatings, are readily thermoweldable, impervious to gases and vapors, and have improved resistance to sticking to the bars of conventional automatic and semi-automatic welding machines. A process for preparing the new polyolefinic films is also disclosed.

REFERENCES:
patent: 3088844 (1963-05-01), Hungerford et al.
patent: 3442687 (1969-05-01), Hagan
patent: 3753769 (1973-08-01), Steiner
patent: 4105118 (1978-08-01), Williams, Jr. et al.

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