Polyether/polycarbonate block copolymers and a process for their

Details Polyether/polycarbonate block copolymers and a process for their Polyether/polycarbonate block copolymers and a process for their

1990-11-14

1992-12-08

Buttner, David J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525394, 525439, 525450, 525469, 525471, 528125, 528175, C08G 8100, C08G 6418, C08G 7523

Patent

active

051699079

ABSTRACT:
A block copolymer represented by the formula ##STR1## are formed by contracting an ester group containing poly(aryl ether) composed of the recurring units ##STR2## with a polyarylcarbonate composed of the recurring units ##STR3## in which B, Z, E.sup.5, E.sup.1, E.sup.2 x, y, n and p represent specified groups or values
under conditions such that ester/carbonate interchange reactions will occur.

REFERENCES:
patent: 4982014 (1991-01-01), Freitag
patent: 5077351 (1991-12-01), Matzner
McGrath et al., Poly. Eng. Sci., 1977, 17, 648.

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