Printing ink compositions and use thereof for the production of

Details Printing ink compositions and use thereof for the production of Printing ink compositions and use thereof for the production of

1981-07-13

1983-10-04

Hayes, Lorenzo B.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

106 20, 106 22, 264 52, 521 72, B29D 2700, C09D 1102

Patent

active

044078820

ABSTRACT:
The invention provides a printing ink composition comprising a pigment or pigment preparation, a thermoplastic resin, water, a water-soluble solvent, and, as inhibitor for preventing the foaming of a foamable material containing a blowing agent, an azole of the formula ##STR1## wherein A is a benzene or naphthalene radical, X is a nitrogen atom or the ##STR2## group, wherein R is a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, R.sub.1 is an alkyl or alkenyl group, each of 1 to 20 carbon atoms, a hydroxyalkyl group of 2 to 20 carbon atoms, an alkoxyalkyl or cyanoalkyl group, each of 3 to 20 carbon atoms, a cycloalkyl group of 5 to 12 carbon atoms, or a phenalkyl group of 7 to 9 carbon atoms, R.sub.2 has the same meaning as R.sub.1 and can in addition be hydrogen, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, form a heterocyclic ring.
The inhibitors employed in the printing ink compositions of this invention have the advantage that they do not require a pH regulator, i.e. they can also be used for printing inks having a pH lower than 8, and have the further advantage that they can be more easily incorporated in printing ink compositions, have a better compatibility with aqueous acrylic resins, a better stability in PVC latices, have less influence on the viscosity and have a lower toxicity than aminotriazoles.

REFERENCES:
patent: 3293094 (1966-12-01), Nairn et al.
patent: 3293108 (1966-12-01), Nairn et al.
patent: 3844814 (1974-10-01), Bettoli et al.
patent: 4083907 (1978-04-01), Hamilton
patent: 4177155 (1979-12-01), Popplewell et al.
patent: 4191581 (1980-03-01), Hamilton

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