Polymer mixtures
AssigneeRoehm GmbH
InventorsWerner Siol, Thomas Suefke, Ulrich Terbrack, Reiner Mueller
Life of this patent
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Abstract
Polymer mixtures of: (A) 2 to 98 wt. % of a polymer containing at least 80 wt. % of the repeating unit --(CH.sub.2 --O)--; and (B) 98 to 2 wt. % of a polymer containing at least to 90 wt. % of a polymer B1 which contains at least 60 wt. % of a monomer of the formula (I) ##STR1## in which R is an alkyl group with 1 to 3 carbon atoms and X is ##STR2## and 80-10 wt. % of a polymer B2 having a glass transition temperature, Tg, below 0.degree. C., and which is covalently bonded with at least 5 wt. % of the polymer containing the monomers of formula I exhibit high solvent resistance and good mechanical properties.
Claims14
A polymer mixture, comprising:
- (A) 2 to 98 wt. % of a first polymer which comprises at least 80 wt. % of the repeating unit --(CH.sub.2 --O)--;
- and
- (B) 98 to 2 wt. % of a second polymer comprising
- (i) at least 20 to 90 wt. % of a polymer B1 which comprises at least 90 wt. % of monomer units derived from monomers of the formula I ##STR10## wherein R is an alkyl group having 1 to 3 carbon atoms and X is ##STR11## and (ii) 80 to 10 wt. % of a polymer B2 having a glass transition temperature, Tg, below 0.degree. C., wherein polymer B2 is covalently bonded with at least 5 wt. % of said polymer B1, wherein said polymer B is a polymer with a core-shell structure, wherein polymer B1 comprises the shell and polymer B2 comprises the core, and wherein said polymer B2 is selected from the group consisting of elastomeric polyacrylates and polyolefins.
A polymer mixture, comprising:
- (A) 2 to 98 wt. % of a first polymer which comprises at least 80 wt. % of the repeating unit --(CH.sub.2 --O)--;
- and
- (B) 98 to 2 wt. % of a second polymer comprising
- (i) at least 20 to 90 wt. % of a polymer B1 which comprises at least 90 wt. % of a monomer units derived from monomers of methyl acrylate and
- (ii) 80 to 10 wt. % of a polymer B2 having a glass transition temperature, Tg, below 0.degree. C., comprising monomer units derived from monomers of butyl acrylate, wherein polymer B2 is covalently bonded with at least 5 wt. % of said polymer B1, wherein said polymer B is a polymer with a core-shell structure, wherein polymer B1 comprises the shell and polymer B2 comprises the core.
Dependencies are inferred from the claim text.