Copolymers containing fluorine and their use for t

专利名称：Copolymers containing fluorine and their

use for the water- repellent and oil-repellent treatment of various substrates

发明人：Andre L. Dessaint申请号：US06/228826申请日：19810127公开号：US04366299A公开日：19821228

摘要：The invention relates to fluorinated copolymers and their application to thewaterproofing and oil-resistance treatment of various substrates. These copolymerscomprise by weight:

(a) 35 to 98% of a monomer or monomers of the formula: ##STR1## in which Rf is aperfluoro radical, Q is an oxygen or sulfur atom, B is a bivalent chain linked to Q by acarbon atom, one of the symbols R is a hydrogen atom and the other a hydrogen atomor an alkyl radical:

(b) 1 to 15% of a monomer or monomers of the formula: ##STR2## in which B' is analkylene radical, R' is a hydrogen atom or an alkyl radical, R.sub.1 is an alkyl, hydroxyethylor benzyl radical, R.sub.2 is a hydrogen atom or an alkyl, hydroxyethyl or benzyl radicalor R.sub.1 and R.sub.2, together with the nitrogen atom, form a heterocyclic radical:

(c) 1 to 50% of a monomer or monomers of the formula: ##STR3## in which R.sub. 3,R'. sub.3, R.sub.4 and R.sub.5 are hydrogen atoms or alkyl radicals; and possibly

(d) up to 10% of any other monomer.

< P>These copolymers are particularly well adapted to the waterproofing and oil-proofing of paper and similar articles.

申请人：P C U K PRODUITS CHIMIQUES UGINE KUHLMANN

代理机构：Beveridge, DeGrandi and Kline

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