Patent ID: 8669314

Claim:
A blended polycarbonate composition with improved hydrolytic stability comprising: a. a hydrolytic stabilizer composition comprising: i. from about 0.1 pph to about 1 pph of a calcined hydrotalcite; and ii. from about 0.1 pph to about 1 pph of an inorganic salt buffer solution; b. from about 20 pph to about 90 pph of a polycarbonate polymer; c. from about 5 pph to about 50 pph of at least one impact modifier; and d. pph balance of one or more polymer composition additive; wherein the composition exhibits hydrolytic stability with at least about 25% greater weight average molecular weight retention than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymer composition and the same acrylonitrile-butadiene-styrene (ABS) polymer composition, in the absence of the same calcined hydrotalcite and the same inorganic salt buffer solution.