Water-redispersible powders of film-forming polymers prepared from ethylenically unsaturated monomers

摘要

PCT No. PCT/FR97/00030 Sec. 371 Date Oct. 6, 1998 Sec. 102(e) Date Oct. 6, 1998 PCT Filed Jan. 8, 1997 PCT Pub. No. WO97/25371 PCT Pub. Date Jul. 17, 1997A water-redispersible powder composition comprising (a) 100 parts by weight of a powder consisting of a water-insoluble film-forming polymer prepared from at least one ethylenically unsaturated monomer and at least one monomer selected from monomers having a carboxylic function and acrylamide or methacrylamide, and (b) 2-40 parts by weight and preferably 8-22 parts by weight of at least one amino acid or a salt thereof. A method for preparing said composition and the use thereof are also disclosed.