C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01) C08J 5/04 (2006.01) C08K 7/14 (2006.01) C08L 75/04 (2006.01) B29C 67/16 (1990.01)
Patent
CA 2134244
ABSTRACT Thermoplastic molding compositions and articles comprise immiscible thermoplastic polymer components and reinforcing fibers. The immiscible thermoplastic polymer components and the fibers are blended together under high shear conditions. The molding composition generally contains at least two phases and has an extremely smooth and fiber-free surface. Generally, other very good physical properties are obtained such as high heat distortion temperatures, high tensile modulus, high flex modulus, and the like are also very good. A desired blend of thermoplastic components is thermoplastic polyurethane and modified polyethylene terephthalate with glass fibers. The molded polyethylene terephthalate copolyester blended with an immiscible thermoplastic polymer, preferably modified polyurethane, and glass fibers produces thermoplastic molding compositions and articles having surprisingly superior impact strength. In addition, if the thermoplastic polyurethane is modified by an aromatic polyester polyol, and blended with a modified polyethylene terephthalate, no fibers are necessary to produce compositions having greatly improved processability.
Kolycheck Edmond G.
Tseng Hsiungto S.
Noveon Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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