Low temperature heat-sealable bi-axially oriented polypropylene

Details Low temperature heat-sealable bi-axially oriented polypropylene Low temperature heat-sealable bi-axially oriented polypropylene

1978-10-31

1980-09-30

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

156163, 156164, 156229, 156249, 156305, 427322, 427173, 4273935, 428334, 428411, 428516, 428910, 264134, 264241, 2643893, B32B 702

Patent

active

042256445

ABSTRACT:
A novel type of low temperature heat-sealable bi-axially oriented polypropylene composite film and a process for the production thereof are disclosed. The composite film is characterized by having on at least one of the outer surfaces thereof a uni-axially or bi-axially oriented extremely thin continuous layer of a primary higher fatty acid amide or an N-substituted higher fatty acid amide formed through the sequential coating and orientating, and it shows well-balanced excellence in all properties required for such films including lubricity, anti-blocking property, anti-scratch property and low temperature heat sealability.

REFERENCES:
patent: 2897170 (1959-07-01), Gruber
patent: 3887745 (1975-06-01), Yoshii et al.
patent: 4117193 (1978-09-01), Tsuchiya et al.

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