Epichlorohydrin-carboxymethyl hydroxypropyl starch copolymer

Epichlorohydrin-carboxymethyl hydroxypropyl starch copolymer (CAS 69331-40-4) is a chemically modified starch derivative engineered to control flow behavior and stabilize dispersions in water-based formulations.

Where is Epichlorohydrin-carboxymethyl hydroxypropyl starch copolymer used?

• Construction: rheology modifier in tile adhesives, joint compounds and cement-based mortars, improving workability and reducing slump
• Pulp and paper: wet-end additive and surface sizing agent that enhances sheet strength and retention
• Textile and leather processing: sizing and finishing binder that improves fabric stiffness and surface uniformity during coating
• Home care and industrial cleaning formulations stabilize suspensions and adjust viscosity in liquid detergents and surface cleaners.

Good to know: Buyers should confirm crosslink density and substitution ratios directly with suppliers, as these parameters vary by intended application.

Commercial specifications

• Powder with specific particle size
• Moisture content specified to suit dry-blend or slurry preparation
• Viscosity grade and ionic character are key metrics