Thermal stencil master sheet and adhesive therefor

Details Thermal stencil master sheet and adhesive therefor Thermal stencil master sheet and adhesive therefor

1987-06-02

1990-10-09

Gallagher, John J.

Printing

Stenciling

Stencils

156280, 1563075, 1563314, 427143, 4283066, 4283177, 4284231, B05C 1706

Patent

active

049613774

ABSTRACT:
A thermal stencil master sheet for stencil printing has a thermoplastic synthetic resin film which is perforatable with heat and a porous substrate, which is substantially unchanged by the heat. The film is bonded to the substrate with a urethane adhesive, preferably composed mainly of a specific urethane prepolymer obtained by reacting a polyether diol with a diisocyanate so as to give an equivalent ratio of NCO/OH of at least 1.1.

REFERENCES:
patent: 3391054 (1968-07-01), Lewis et al.
patent: 3715267 (1973-02-01), Kubo et al.

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