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US 3,993,493 AGranted
Inks containing isocyanated imides of hydrocarbon anhydrides and blends thereof
AssigneePetrolite Corporation
InventorsRobin A. McLaren, Charles Alcott
Life of this patent
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Abstract
Reaction of (1) organic isocyanates and (2) imides of hydrocarbon-anhydrides and equivalents thereof; and to uses for these reaction products, including their use in inks, particularly in carbon paper inks.
Claims8
A carbon paper ink containing a coloring material, a vehicle and the reaction product of
- 1. an organic isocyanate or a mixture of organic isocyanates and
- 2. an imide of a member selected from the group consisting of
- i. an olefin-maleic compound adduct prepared by reacting (a) a maleic compound selected from the group consisting of maleic acid, citraconic acid, ethylmaleic acid, glutaconic acid, itaconic acid, methylitaconic acid the anhydride of each of said acids and an ester derivative of each of said acids with (b) an olefin of the formula R--CH=CH.sub.2 or of the formula ##EQU1## where R is a hydrocarbon radical of 9-100 carbon atoms and R' is hydrogen or H(CH.sub.2).sub.n, n being 1-100, and
- ii. a wax-maleic compound graft copolymer prepared by reacting (a) a maleic compound selected from the group consisting of maleic acid, a citraconic acid, ethylmaleic acid, glutaconic acid, itaconic acid, methylitaconic acid, the anhydride of each of said acids and an ester derivative of each of said acids with (b) a wax selected from the group consisting of plastic microcrystalline waxes, tank bottom microcrystalline waxes, solvent extracted microcrystalline waxes, Fischer-Tropsch waxes, polyalkylene hydrocarbon waxes and blends thereof.
1 more element
Dependencies are inferred from the claim text.