Unsaturated monocarboxylic acid derivative or dicarboxylic acid derivatives and oxyalkylene glycol - copolymers based on alkenyl ethers, preparation and use thereof

摘要

Vinyl poly- alkylene glycol - or copolymer, and inorganic the ester compound is designated as the base or the bitumen binder, especially the cement, the gypsum and the lime, the anhydrite, or the calcium sulfate based binder other than that is designated as the base the unsaturated mono carboxylic acid derivative or the di-carboxylic acid derivative, with oxy alkylene glycol - arukenirueteru and case, and as an additive for the water suspensoid which designates the powdered dispersed binder as the base those uses are stated. The copolymer by this invention with the process quality which is prominent simultaneously grants satisfactory dispersion action or liquefaction action, to the water suspensoid of the binder. Other than that, following to this invention, can be produced easily low oxy alkylene glycol - arukenirueteru which is used technically relatively and at cost, at the same time compares low initiator density at the time of copolymerization needs.