Self-priming pressure-sensitive adhesive tape

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

C - Chemistry, Metallurgy

09

J

117/26

C09J 7/02 (2006.01) C09J 7/00 (2006.01)

Patent

CA 1254800

SELF-PRIMING PRESSURE-SENSITIVE ADHESIVE TAPE 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.

477611

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