Pressure-sensitive multi-part record unit

Details Pressure-sensitive multi-part record unit Pressure-sensitive multi-part record unit

1988-12-09

1990-05-22

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified reactant isolating material or capsule wall...

4283213, 428331, 428914, 503219, 503225, 503226, B41M 522

Patent

active

049278029

ABSTRACT:
The front side of at least one receptor sheet of a pressure-sensitive multi-part record unit comprises microporous material comprising a matrix consisting essentially of substantially water-insoluble thermoplastic organic polymer, a large proportion of finely divided, water-insoluble siliceous particles, and interconnecting pores.

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Encyclopedia of Polymer Science and Engineering, vol. 9, John Wiley & Sons, Inc., pp. 724-745 (1987).

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