Support film and pressure-sensitive adhesive tape

Details Support film and pressure-sensitive adhesive tape Support film and pressure-sensitive adhesive tape

1985-06-12

1987-06-16

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428343, 428345, 428447, 428451, 428516, 428910, 428520, B32B 702, C09J 702

Patent

active

046736115

ABSTRACT:
A pressure-sensitive adhesive tape is described, which comprises a support film formed of a co-extruded, biaxially oriented multilayer polypropylene film and an adhesive coating applied to one surface of the film. The support film is composed of at least first and second layers having different compositions. The second layer of the support film, which faces away from the adhesive coating, has a thickness of less than one third of the total thickness of the adhesive tape, and contains an anti-adhesive substance.

REFERENCES:
patent: 3853595 (1974-12-01), Pedginski et al.
patent: 4414261 (1983-11-01), Nanbu

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