Appeal No. 96-0767
Application 08/136,439
7-11. Claims 1-6 have been canceled, and claim 12 has been
withdrawn from consideration.
The subject matter is directed to an aqueous pigment
preparation comprising an oligourethane formulating agent.
Claim 7, the only independent claim, is illustrative of the
appealed claims and reads as follows:
7. An aqueous pigment preparation comprising
(a) a formulating agent comprising an oligourethane having
an average molecular weight range of from 5000 to 50,000 and
containing
(1) no primary or secondary amino groups,
(2) 5 to 25% by weight, based on the oligourethane, of
incorporated ethoxy groups, and
(3) anionic and cationic groups, wherein the quantity of
anionic groups is from 0.2 to 0.8 mol per 1000 g of the
oligourethane and the molar ratio of anionic to cationic groups
is from 0.8 to 4,
wherein said oligourethane comprises a reaction product of
a polyisocyanate; hydroxyl compounds, wherein at least one such
hydroxyl compound is a dihydroxyl compound containing ionic
groups; and an amino alcohol having tertiary nitrogen atoms;
(b) from 2 to 20 ml, per 100 gram of pigment preparation, of a
pigment having a density of from 0.8 to 7 g/ml; and
© an aqueous phase containing up to 30% by weight of organic
solvent.
The reference of record relied on by the examiner is:
Scriven et al. (Scriven) 4,147,679 April 3, 1979
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