| abstract |
THE INVENTION TREATS THE USE OF COPOLYMERS AS TENSIOACTIVE SUBSTANCES IN PREPARATIONS OF NON-HYDRO-SOLUBLE SUBSTANCES FROM: A) FROM 60 TO 99% MOL OF N VINYL PIRROLIDONE, AND B) FROM 1 TO 40% MOL OF A MONOMERO SELECTED FROM THE GROUP DE B1) RENTING ESTER C 8 C 30 OF CARBOXYLIC ACIDS C 3 C8 MONOETILENICALLY INSATURED, B2) AMID AS REPLACED FROM N RENTED ON, N DIALQUYLL OF ACRYLIC ACID OR METACRYLIC ACID, WITH RENTAL RADICALS C, C 18, C 8 OR B3) CARBOXYLIC ACID VINYL ESTER C 8 - C 30 ALIFATICS OR MIXTURES OF THESE MONOMERS. |