Modified polyarylene ether block copolymers

Details Modified polyarylene ether block copolymers Modified polyarylene ether block copolymers

C - Chemistry, Metallurgy

08

G

C08G 65/26 (2006.01) C08G 65/40 (2006.01) C08G 75/23 (2006.01) C08L 63/00 (2006.01) C08L 71/00 (2006.01) C08L 71/12 (2006.01)

Patent

CA 2052488

K-18272/A/CGM 382 ABSTRACT Modified polyarylene ether block copolymers Polyarylene ether block copolymers which are modified with di- and triglycidyl compounds and are soluble in organic solvents are obtained by (a) reacting 5-95 % by weight of hydroxyl-terminated polyarylene ethers having a number average molecular weight of 1000-60 000 and of formula Ia Image (Ia), wherein Ar1 and Ar2 are each independently of the other a divalent carbocyclic-aromatic radical and x is an integer from 4 to 250, and (b) 95-5 % by weight of (a) different hydroxyl-terminated polyarylene ethers having a number average molecular weight of 1000 to 60 000 and of formula II Image (IIa), wherein Ar3 and Ar4 are are each independently of the other a divalent carbocyclic-aromatic radical and y is an integer from 4 to 250, with (c) 0.2 to 10 % by weight of one or more glycidyl compounds. The modified polyarylene ether block copolmyers form stable solutions in organicsolvents and are suitable for modifying thermoplastic and thermosetting matrix resins.

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