Compositions: coating or plastic – Coating or plastic compositions – O-containing organic compound
Patent
1994-05-25
1995-07-25
Brunsman, David
Compositions: coating or plastic
Coating or plastic compositions
O-containing organic compound
106214, 162158, 5483175, 549379, C09D 712, C09D10302
Patent
active
054358418
ABSTRACT:
This invention relates generally to insolubilizers for use with binders in paper coating compositions. There is provided a process for preparing both an insolubilizer and paper coating composition containing the insolubilizer and a binder which, when applied onto paper products, significantly enhances their wet-rub resistance.
The insolubilizer is prepared by:
(a) forming a glyoxal-urea adduct by reacting from about 1.0 to about 4.0 moles of glyoxal with about 1.0 mole of urea, at an elevated temperature,
(b) cooling the glyoxal-urea adduct to room temperature,
(c) adding from about 0.5 to about 2.0 moles of free glyoxal to the glyoxal-urea adduct to form an oligomer, and
(d) adjusting the pH of the oligomer to from about 5 to about 7.
REFERENCES:
patent: 3869296 (1975-03-01), Kelly, Jr. et al.
patent: 3917659 (1975-11-01), Glancy et al.
patent: 4471087 (1984-09-01), Lipowski
patent: 4610761 (1986-09-01), Eklund et al.
Clungeon Nancy
Flynn Gregory J.
He Zhentao
Rodriguez Jose M.
Brunsman David
Grandmaison Real J.
Henkel Corporation
Jaeschke Wayne C.
Szoke Ernest G.
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