Methods of salvaging improperly processed resinous

Details Methods of salvaging improperly processed resinous Methods of salvaging improperly processed resinous

1975-11-25

1978-01-31

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 456, 264132, B29D 720, B29D 2702

Patent

active

040715922

ABSTRACT:
In the art of making chemically embossed sheets of resinous material for use as floor, wall, desk and table coverings, a method of salvaging and recovering a backing sheet material and a potentially foamable, gelled plastisol composition on which has been improperly or inaccurately applied a printing ink composition containing an anhydride having blow-modifying properties which comprises: (1) treating the printing ink composition and the potentially foamable, gelled plastisol composition with a neutralizing, inhibiting or negating composition capable of destroying or rendering substantially ineffectual the blow-modifying properties of the anhdride without destroying or rendering ineffectual the blowing and foaming properties of the potentially foamable, gelled plastisol composition; (2) reprinting the potentially foamable, gelled plastisol composition with another printing ink composition containing a blow-modifier; and (3) blowing or foaming the potentially foamable, gelled plastisol composition, whereby chemically embossed effects are obtained as a result of the blow-modifying properties of the blow-modifier used in the reprinting process, rather than the blow-modifier used in the initial printing process.

REFERENCES:
patent: 3293094 (1966-12-01), Nairn et al.
patent: 3293103 (1966-12-01), Nairn et al.
patent: 3365353 (1968-01-01), Witman
patent: 3373072 (1968-03-01), Jones
patent: 3772138 (1973-11-01), Witman
patent: 3914485 (1975-10-01), Curtis

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