C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2007
C08G 77/445 (2006.01) C08L 69/00 (2006.01)
Patent
CA 2007147
RD 19250 AROMATIC POLYESTER-SILOXANE BLOCK COPOLYMERS AND METHOD FOR MAKING Abstract of the Disclosure There is provided by the present invention aromatic polyester-siloxane block copolymers which can be made by effecting the condensation between tetra- methyldisiloxane bisbenzoic acid or acid chloride with a dihydric phenol such as bisphenol A or in combination with a mixture of such tetramethyldisiloxane bisbenzoic acid and aromatic acids, such as terephthalic acid or isophthalic acid. The aromatic polyester-siloxane block copolymers can be used as molding compounds, extruded films, in making composite matrix materials and as flame retardants for aromatic polycarbonates.
Davis Gary C.
Guggenheim Thomas L.
Hernandez Pamela K.
Mcdermott Philip J.
Policastro Peter P.
Company General Electric
Craig Wilson And Company
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