Polymers from ethylenic monomers
AssigneeBayer Aktiengesellschaft
InventorsGunter Sackmann, Joachim Konig, Heinz Baumgen
Life of this patent
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Abstract
Polymers obtainable by subjecting at least one monomer, polymerizable by free radicals, to a free-radical emulsion polymerization in the presence of a polymer of the formulae I and/or II ##STR1## in which M, n, R, R.sup.1, R.sup.2, x and y have the meanings mentioned in the description, the use of the polymers obtained for surface-sizing of paper or paper-like materials and also novel polymers of the formulae I and/or II.
Claims14
A polymer obtainable by subjecting at least one monomer selected from the group consisting of styrene, alpha-methylstyrene, acrylonitrile, vinyl acetate, ethyl acrylate, methyl methacrylate, n-butyl acrylate, i-butyl acrylate, 2-ethylhexylacrylate and oxypropyl methacrylate to a free-radical emulsion polymerization in the presence of a polymer of the formulae I and/or II ##STR5## in which M signifies a cation-forming radical,
- n signifies 1 or 2,
- R signifies an aliphatic radical having 1 to 10 carbon atoms or an aromatic radical having 1 to 10 carbon atoms,
- R.sup.1 signifies H or --CH.sub.3,
- R.sup.2 signifies H, C.sub.1 -C.sub.6 -alkyl, and phenyl,
- R.sup.3 signifies a hydrocarbon radical of an amine and
- x and y are selected in such a manner that the weight average of the molecular weight (M.sub.w) of the polymers I and II is 5,000 to 500,000 and the ratio of x:y is 1:4 to 1:1.
Dependencies are inferred from the claim text.