Silicone-modified polyester resin and silicone- sheathed...

C - Chemistry – Metallurgy – 08 – L

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402/14, 18/636.3

C08L 67/02 (2006.01) C08G 77/42 (2006.01) C08G 77/445 (2006.01) C08L 83/10 (2006.01)

Patent

CA 1246284

- 80 - SILICONE-MODIFIED POLYESTER RESIN AND SILICONE-SHEATHED POLYESTER FIBRES MADE THEREFROM ABSTRACT Polyester resin is modified with siloxane block polymers in such a manner so as to form silicone-modified polyester copolymer domains of controlled size and distribution dispersed in the polyester matrix. These domains undergo microphase segregation and migration during the melt spinning and cold-drawing to the surface of the polyester fiber being formed so as to provide a silicone-sheathed polyester fiber.

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