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SBCs target long, thin moldings.

Chevron Phillips Chemical Co. LP has commercialized a pair of high-flow K-Resin styrene-butadiene copolymers for Injection molding long, thin, and finely detailed medical parts, display items, and toys. BK10 and BK15 have 15 MFI; BK15 contains a mold release,

The new SBCs offer glass-like clarity, high gloss, and a good balance of toughness and stiffness. Elongation at break is 200%. Tensile yield strength is 3100 psi, while flexural modulus is 215,000 psi. HDT is 143 F @ 264 psi. The materials can be sterilized with ethylene oxide and gamma or e-beam radiation. Tel: (866-573-7461),

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Title Annotation:Keeping Up With Materials
Publication:Plastics Technology
Date:Jan 1, 2004
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