Water repellent and oil resistant composition

Details Water repellent and oil resistant composition Water repellent and oil resistant composition

D - Textiles, Paper

21

H

D21H 19/20 (2006.01) C09K 3/18 (2006.01) D21H 21/16 (2006.01)

Patent

CA 2393346

A composition which can impart excellent water repellency and oil resistance to paper even when dried at a low temperature in a short time. The composition comprises: a fluorocopolymer (A) obtained by polymerizing a polyfluoroalkylated (meth)acrylate, vinylidene chloride, and a compound represented, for example, by [CH2=C(R)COO-CH2-CH(OH)-CH2N+(CH3)3 X- (R is hydrogen or methyl and X- is a counter ion)] with the aid of an oleophilic polymerization initiator (E) whose solubility in 100 g of water is less than 3 g; a non-fluorochemical surfactant (B); a medium (C); and a water-soluble polymer (D) (polyacrylamide, polyvinyl alcohol, or starch).

L'invention concerne une composition conçue pour conférer à du papier d'excellentes propriétés d'hydrophobie et de résistance à l'huile, même après séchage à basse température pendant un court instant. La composition comprend: un fluorocopolymère (A) obtenu par polymérisation d'un (méth)acrylate polyfluoroalkylé, de chlorure de vinylidène et d'un composé représenté, par exemple, par la formule [CH¿2?=C(R)COO-CH¿2?-CH(OH)-CH?2¿N?+¿(CH¿3?)¿3??.¿X?-¿ (R étant hydrogène ou méthyle et X?-¿ étant un contre-ion), à l'aide d'un déclencheur (E) de polymérisation oléophilique dont la solubilité dans 100g d'eau est inférieure à 3g; un tensio-actif (B) non-fluorochimique; un milieu (C); et un polymère (D) hydrosoluble (polyacrylamide, poly(alcool de vinyle), ou amidon).

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