Method of curing a compressible printing blanket and a compressi

Details Method of curing a compressible printing blanket and a compressi Method of curing a compressible printing blanket and a compressi

1986-06-09

1988-09-13

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

1014011, 4283135, 4283142, 428909, 521 54, 523218, B32B 326, C08J 932, B41N 100

Patent

active

047709286

ABSTRACT:
A laminated printing blanket having compressible and resilient properties and a method for its production are provided. The compressible characteristics are provided by disposing an intermediate layer having substantially uniformly distributed voids of substantially uniform size between the base layer and the surface layer of the printing blanket. The voids of the compressible intermediate layer are formed by introducing microcapsules into an elastomeric compound formulated for production of the intermediate layer, and by vulcanizing the intermediate layer at a temperature below the melting point of the microcapsules to a degree sufficient to fix the microcapsules in place within the structure of the intermediate layer. A final vulcanizing step completes the curing of all layers to produce a laminated unitary blanket.

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patent: 4093764 (1978-06-01), Duckett et al.
patent: 4303721 (1981-12-01), Rodriguez

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