Self-priming pressure-sensitive adhesive tape

Details Self-priming pressure-sensitive adhesive tape Self-priming pressure-sensitive adhesive tape

1984-04-05

1986-04-08

Ives, Patrick C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428 31, 428344, 428354, 428355, 428356, 428429, 428448, 428413, 428414, 428441, 428465, 428440, 428467, 428497, 428493, 428466, 428494, C09J 702, B60R 1300, B32B 2512

Patent

active

045812810

ABSTRACT:
A self-priming pressure-sensitive adhesive bonding tape is provided having a layer of a primary pressure-sensitive adhesive material coated onto one or more surfaces with a film of a secondary pressure-sensitive adhesive material. Both the primary and secondary pressure-sensitive adhesives are modified by the addition of adhesion promoters to enhance the wetting characteristics of the tape. The film thickness of the secondary pressure-sensitive adhesive is such that the film has discontinuities which enable at least a portion of the primary pressure-sensitive adhesive layer to be directly exposed to the substrate. Bonding is accomplished with the participation of both the primary and secondary pressure-sensitive adhesives.

REFERENCES:
patent: 3896245 (1975-07-01), Seto et al.
patent: 4061805 (1977-12-01), Thompson et al.
patent: 4260659 (1981-04-01), Gobran
patent: 4393080 (1983-07-01), Pawelchak et al.

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