Patent ID: 11884822
Assignee: SHPP GLOBAL TECHNOLOGIES B.V.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The foamed polycarbonate composition of claim 1, wherein the poly(carbonate-siloxane) copolymer comprises siloxane units of the formula, or a combination thereof,
wherein:
E has an average value of 2-200, 5-100, 5-50, 20-80, or 5-20, R6 is a divalent C1_8 aliphatic group,
each instance of M in formula is independently halogen, cyano, nitro, C1-8 alkylthio, C1-8 alkyl, C1-8 alkoxy, C2-8 alkenyl, C2-8 alkenyloxy, C3-8 cycloalkyl, C3-8 cycloalkoxy, C6-10 aryl, C6-10 aryloxy, C7-12 aralkyl, C7-12 aralkoxy, C7-12 alkylaryl, or C7-12 alkylaryloxy, and
n is independently 0, 1, 2, 3, or 4.