Patent ID: 8853331

Claim:
A mixture, which comprises polyoxymethylene, and a hyperbranched polycarbonate comprising a stabilizing group, obtained by a process comprising reacting: (a) a compound comprising at least three alcoholic hydroxyl groups per molecule with (b) a reagent of formula I: (c) and a reagent of formula X 3 -(A 1 ) m -X 4 , wherein: X 1 and X 2 are identical or different and are each independently a halogen, C 1 -C 10 -alkoxy, C 6 -C 10 -aryloxy, or O—C(═O)-halogen; X 3 is OH, SH, NH 2 , NH—C 1 -C 4 -alkyl, isocyanate, epoxy, COOH, COOR 12 , C(═O)—O—C(═O), C(═O)—Cl; R 12 is a C 1 -C 4 -alkyl or C 6 -C 10 -aryl; A 1 is a spacer or a single bond; m is zero or one; and X 4 represents a group represented by formula IIa or IIb wherein: R 1 , R 2 , R 3 , and R 4 are identical or different and are each independently a C 1 -C 10 -alkyl or C 3 -C 10 -cycloalkyl; X 5 is an oxygen atom, a sulfur atom, an NH group, an N—(C 1 -C 4 -alkyl) group, a carbonyl group; A 2 is a single bond or a spacer; n is zero or one; X 6 is hydrogen, oxygen, O—C 1 -C 19 -alkyl, C 1 -C 12 -alkyl, C 2 -C 18 -acyl, or aryloxy-carbonyl comprising from 7 to 12 carbon atoms; said components (a), (b), and (c) are each simultaneously present in a mixture prior to and during said reacting, said component (a) is present in an amount of from 10 to 59 mol % based on the total reaction mixture; said component (b) is present in an amount of from 40 to 60 mol % based on the total reaction mixture; and said component (c) is present in an amount of from 1 to 40 mol % based on the total reaction mixture.