Paper opacifying composition
AssigneeSequa Chemicals, Inc.
InventorsLouis R. Dragner, Bernard F. North
Life of this patent
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Abstract
A composition for use in the papermaking process to produce a paper having enhanced opaqueness is provided. The process using the composition to make the paper and the paper made therefrom are also provided by the present invention. The composition employs a reaction product of dimerized acid and alkanol amine, wherein the composition further includes a surfactant. To speed the production of the composition, a viscosity controlling agent, such as sodium chloride or sodium acetate, may be added thereto. The composition is added to pulp slurry during the papermaking process, and a paper made therefrom exhibits excellent qualities of opaqueness.
Claims26
A composition for adding to a pulp slurry of cellulose fibers during a papermaking process for enhancing opaqueness in the paper produced therefrom comprising the reaction products formed from the reaction of a dimerized acid and an alkanol amine and wherein said composition further includes a surfactant wherein the dimerized acid is a dimer of a poly unsaturated acid selected from the group consisting of tall oil acid, soybean oil acid, palm oil acid, linolenic acid, eleostearic acid and mixtures thereof.
A composition for adding to a pulp slurry of cellulose fibers during a papermaking process for enhancing opaqueness in the paper produced therefrom comprising the reaction products formed from the reaction of a dimerized acid and an amino ethyl ethanol amine and wherein said composition further includes a surfactant.
A composition for adding to a pulp slurry of cellulose fibers during a papermaking process for enhancing opaqueness in the paper produced therefrom comprising the reaction products formed from the reaction of a dimerized acid, an alkanol amine and a fatty acid and wherein said composition further includes a surfactant wherein the dimerized acid is a dimer of a poly unsaturated acid selected from the group consisting of tall oil acid, soybean oil acid, palm oil acid, linolenic acid, eleostearic acid and mixtures thereof.
A composition for adding to a pulp slurry of cellulose fibers during a papermaking process for enhancing opaqueness in the paper produced therefrom comprising the reaction products formed from the reaction of a dimerized acid, an amino ethyl ethanol amine and a fatty acid and wherein said composition further includes a surfactant.
Dependencies are inferred from the claim text.