Ppg Industries, Inc.

Sai H Hui

Mean-Jeng Hou

William W Carlin

John Douglas Mansell

W Bruce Darlington

Disclosed is a binder insolubilizer for use in binder-containing paper coating compositions, the insolubilizer consisting essentially of an aqueous formulation containing at least about 15 weight percent of titratable glyoxal and at least one polyhydroxy compound.

Glyoxal-containing binder insolubilizer

Disclosed are compositions useful as surface coatings for nonwoven substrates which compositions are reaction products of a melamine formaldehyde compound, long chain saturated alcohols and long chain saturated or unsaturated polyethoxylated alcohols. The invention compositions when used to surface size paper impart oil, water and polar solvent resistance thereto. The compositions may be used alone or as substantial replacements for anionic or non-ionic fluorocarbon based surface sizes that are typically used to impart oil resistance to paper.

Surface sizing composition

Disclosed are cationic aqueous emulsions containing (a) sizing composition comprising the reaction product of melamine formaldehyde compound, long chain saturated alcohol and long chain saturated or unsaturated polyethoxylated alcohol; and (b) cationic surfactant. The emulsions when used to surface size paper impart improved oil, water and polar solvent resistance thereto. The emulsions may be used alone or as substantial replacements for anionic or non-ionic fluorocarbon based emulsions that are typically used to impart oil resistance to paper.

Cationic surface sizing emulsion

This invention relates to urea-free high solids content aqueous calcium stearate dispersions useful as lubricating agents in paper and paperboard coating compositions.

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Hudson, OH, United States of America

Sai H Hui