Opacifying composition for paper or paperboard, processes using same and paper or paperboard produced therefrom

摘要

An agent for enhancing brightness and opaqueness in paperboard comprises a reaction product selected from the groups consisting of: A) an amide reaction product of a C₁₂-C₂₂ fatty acid, condensed with an amine selected from monoalkanol amines, dialkanol amines or diethylene triamine or a mixture thereof. B) an amide reaction product of a triglyceride of a C₁₂-C₂₂ fatty acid condensed with an amine selected from monoalkanol amine, dialkanol amine, or diethylene triamine or a mixture thereof. C) an amide reaction product of an ester of a C₁₂-C₂₂ fatty acid condensed with an amine selected from monoalkanol lower alkyl amine, dialkanol amine, diethylene triamine or a mixture thereof; and D) an ester reaction of a C₁₂-C₂₂ fatty acid condensed with an alcohol selected from glycerine, ethylene glycol or propylene glycol.