Non-ghosting pressure sensitive adhesives

Details Non-ghosting pressure sensitive adhesives Non-ghosting pressure sensitive adhesives

1984-09-04

1987-02-17

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524272, 524273, 524274, 524500, 524516, 525279, 526260, C08L 3700

Patent

active

046440321

ABSTRACT:
A pressure-sensitive adhesive having non-ghosting characteristic comprising a latex of polymers having pendent oxazoline groups, coreactive groups and a tackifier. The latex comprises discrete polymer particles having both pendent oxazoline and coreactive groups or a blend of discrete polymer particles one portion of which has pendent oxazoline groups and the other portion of which has pendent coreactive groups. The oxazoline group is preferably 2-isopropenyl-2-oxazoline and the coreactive group is a carboxyl, sulfonic acid, anhydride, phenolic, hydroxyl, amide or amine group.

REFERENCES:
patent: 3535291 (1970-10-01), Riemhofer et al.
patent: 4189418 (1980-02-01), Ueno et al.
patent: 4189419 (1980-02-01), Takemoto et al.
patent: 4474923 (1984-10-01), Keskey et al.

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