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US 6,214,936 B1Granted
Use of microphase-separated polymer blends for the preparation of permeable membranes
OwnerChristof Mehler, Axel Gottschalk +3inventors
InventorsChristof Mehler, Axel Gottschalk, Ulrike Breiner, Reimund Erich Stadler, Thorsten Goldacker
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Abstract
The use of microphase-separated polymer blends, comprising A-B-C triblockcopolymers containing an elastomeric middle block B and A′-C′ diblockcopolymers, for the preparation of permeable membranes.
Claims3
A permeable membrane, comprising a microphase-separated polymer blend having lamellar morphology composed of
- i) from 10 to 90 wt % of an A-B-C triblockcopolymer comprising a block A composed of vinylaromatic monomers, an elastomeric middle block B composed of conjugate dienes and a block C composed of C1-C18-alkyl esters of (meth)acrylic acid or a mixture thereof and
- ii) from 90 to 10 wt % of an A′-C′ diblockcopolymer, comprising a block A′ composed of vinylaromatic monomers and a block C′ composed of C1-C18-alkyl esters of (meth)acrylic acid or mixtures thereof.
Dependencies are inferred from the claim text.