Stable aqueous wax dispersions

• Main Author: SEDILLO, LAWRENCE
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2015
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

This invention relates to a stable aqueous wax dispersion comprising A) from 5 to 65% by weight of micronized wax, the wax comprising an amide wax, polyethylene wax, modified polyethylene wax, polyethylene/amide wax, polyethylene/polytetrafluroethylene (PTFE) wax, polypropylene wax, modified polypropylene wax, polyethylene/polypropylene wax, polytetrafluroethylene (PTFE) wax or copolymers thereof or any mixture thereof having a mean particle size of from 1 to 100 μm and an acid number of less then 10 mg of KOH/g of wax and B) 0.5 to 20% by weight of a thickening/dispersing agent, comprising of a alkali swellable acrylic polymers (ASE) or a hydrophobically modified alkali swellable emulsion (HASE) or a hydrophobically modified ethoxylated urethane (HEUR) or a polymer containing both a high molecular weight acrylic copolymer moiety and a hydrophobically modified ethoxylated urethane as a thickening/dispersing agent or mixtures thereof C) 0 to 5% by weight of a water soluble base as a neutralizing agent D) 0 to