Block copolymers
AssigneeBASF SE
InventorsMartin WEBER, Thomas WEISS, Christian MALETZKO, Bastiaan Bram Pieter STAAL, Klaus MUEHLBACH, Joerg ERBES
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Abstract
Block copolymer comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein said block copolymer comprises at least two polyalkylene oxide blocks that are endcapped with different endcapping groups.
Claims21
A block copolymer, comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein the block copolymer comprises at least two polyalkylene oxide blocks that are endcapped with different endcapping groups.
A block copolymer, comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein the block copolymer comprises at least two different polyalkylene oxide blocks of formula
- RxA—(OCH2—CHRB)k—O— (I),
- wherein
- x is an index number and has the identical value in each polyalkylene block comprising the same rest RA,
- RxA denotes an aliphatic or aromatic rest,
- RB denotes hydrogen or an aliphatic or aromatic rest,
- k is a number from 1 to 500,
- wherein the at least two different polyalkylene oxide blocks differ at least with respect to RxA,
- and wherein the polyalkylene oxide block is covalently bound to the rest of the block copolymer.
Dependencies are inferred from the claim text.