Concentrated microcapsule suspensions for reaction copying paper

Details Concentrated microcapsule suspensions for reaction copying paper Concentrated microcapsule suspensions for reaction copying paper

1981-05-20

1984-01-31

Lovering, Richard D.

Coating processes

Transfer or copy sheet making

Reactive components

71DIG1, 106 21, 252522A, 264 43, 264 47, 424 32, 427151, 523176, B01J 1302, B41M 312, C09D 1102

Patent

active

044289782

ABSTRACT:
A process for the production of aqueous suspensions containing from 35 to 60% by weight of microcapsules by interfacial polyaddition from polyisocyanates and H-active compounds, wherein

REFERENCES:
patent: 3016308 (1962-01-01), Macaulay
patent: 3677787 (1972-07-01), Augl et al.
patent: 3796669 (1974-03-01), Kiritani et al.
patent: 3914511 (1975-10-01), Vassiliades
patent: 4140516 (1979-02-01), Scher
patent: 4193889 (1980-03-01), Baatz et al.
patent: 4253682 (1981-03-01), Baatz et al.
patent: 4299723 (1981-11-01), Dahm et al.
patent: 4324817 (1982-04-01), Dahm et al.

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