Transparent fibrous sheets and process for making

Details Transparent fibrous sheets and process for making Transparent fibrous sheets and process for making

1979-04-26

1981-06-02

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

162168R, 162169, 162182, 428274, 428290, 428513, 428514, 428522, B32B 2310, B32B 2710, D21B 300

Patent

active

042712270

ABSTRACT:
A transparent, non-stratified, three dimensional resin reinforced fibrous sheet and the process for its preparation is disclosed. A fibrous sheet is impregnated or coated with one or more tri or higher functional monomers that can be polymerized in-situ to form three dimensional polymer resins, in close contact with the fibrous material of the sheet. A transparentized fibrous sheet results which is resistant to water and alcohols, highly and evenly translucent and useful as tracing media vellum as well as a translucent base for sensitizing with reprographic coatings.

REFERENCES:
patent: 2429060 (1947-10-01), Hoover
patent: 3207641 (1965-09-01), Small
patent: 3235443 (1966-02-01), Greeman
patent: 3410719 (1968-11-01), Roper
patent: 3778294 (1973-12-01), Krauch
patent: 3935364 (1976-01-01), Proksch
patent: 4016333 (1977-04-01), Gaske

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