Adhesive tape

Details Adhesive tape Adhesive tape

1984-06-11

1985-08-20

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

428343, 428347, 428352, 428910, B32B 712, C09J 702

Patent

active

045364419

ABSTRACT:
The invention relates to an adhesive tape having a base material which is stretched more highly at right angles to the web direction than in the web direction, contains polypropylene as the main component, and is provided with at least one pressure-sensitive or heat-sealable adhesive layer, characterized in that the base material is foamed and that the stretch ratio in the web direction is 1:1 to 1:4 and at right angles to the web direction is 1:3 to 1:8, the stretch ratio at right angles to the web direction being greater than the stretch ratio in the web direction.

REFERENCES:
patent: 3241662 (1966-03-01), Robinson et al.
patent: 3995087 (1976-11-01), Desanzo
patent: 4137362 (1979-01-01), Miki et al.
patent: 4188442 (1980-02-01), Asakura et al.
patent: 4275120 (1981-06-01), Weiner
patent: 4333968 (1982-06-01), Nahmias
patent: 4451533 (1984-05-01), Wong et al.
Chemical Abstracts, vol. 84, 1971, p. 54, Abstract No. 136736m, Keisuke S., "Polypropylene Foam Tapes".
Encyclopedia of Polymer Science and Technology, vol. 7, John Wiley & Sons, Inc., N.Y., 1967, pp. 581, 582.
Kunststoff-Lexikon, Carl Hanser, Munich, 1981, pp. 9-13.

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