Patent Number: 6,252,013

Title: Method for making siloxane copolycarbonates

Abstract: A melt condensation polymerization process for preparing siloxane copolycarbonates is provided. The process includes reacting an aromatic dihydroxy compound, carbonic acid diester, hydroxyaryl terminated polydiorganosiloxane and catalyst with a salt.

Inventors: Banach; Timothy Edward (Scotia, NY), Davis; Gary Charles (Albany, NY), Smigelski, Jr.; Paul Michael (Schenectady, NY), McCloskey; Patrick Joseph (Watervliet, NY)

Assignee: General Electric Company

International Classification: C08G 64/18 (20060101); C08G 64/00 (20060101); C08G 77/00 (20060101); C08G 77/448 (20060101); C08F 004/46 ()

Expiration Date: 06/26/2018