Method of making a compressible printing blanket and a compressi

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

1984-07-27

1985-10-22

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

156 79, 428246, 428284, 4283044, 428909, B32B 518, B32B 522, B29C 300

Patent

active

045488584

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 a compressible intermediate layer having voids, between a base ply and a surface layer. The voids in the intermediate layer are produced by dispersing a blowing agent in an elastomer, sandwiching the elastomer containing the blowing agent between two fabric layers, and activating the blowing agent to produce voids. By activating the blowing agent before disposing the intermediate layer between the base ply and the surface layer, the gases from the blowing agent are prevented from migrating to the base ply or to the surface layer.

REFERENCES:
patent: 2763208 (1956-09-01), Rockoff et al.
patent: 3700541 (1972-10-01), Shrimpton et al.
patent: 4025685 (1977-05-01), Haren et al.
patent: 4174244 (1979-11-01), Thomas et al.
patent: 4303721 (1981-12-01), Rodriguez
patent: 4388366 (1983-06-01), Rosato et al.

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