Chevron Phillips K-Resin® XK40 Styrene-Butadiene Copolymer, Sheet Grade

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USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

Chevron Phillips K-Resin® XK40 Styrene-Butadiene Copolymer, Sheet Grade (discontinued **)
Categories:	Polymer; Thermoplastic; Styrene-Butadiene; Styrene-Butadiene Copolymer, SBC
Material Notes:	Styrene-Butadiene Copolymer Customer Benefits: XK40 is an extrusion grade SBC designed specifically for superior performance in blends with general purpose polystyrene. Compared to KK38, KX40 offers greater polystyrene acceptance and better clarity. Applications: Major applications include thermoformed blister packs, cups and lids, and portion packages. Processing Recommendations: Extrusion: Melt Temperature, 218°C maximum. High shear and restrictive type screws tend to degrade the melt. Generally no need to dry resin. Specification Data: FDA Regulation 21 CFR 177.1640; suitable for food contact. EEC Directive 90/128/EEC and all its amendments. USP Class VI-50. Data provided by Chevron Phillips Chemical Company LP. Ineos Styrolution acquired the K-Resin® product line from Chevron Phillips Chemical Company in 2016. This grade was previously discontinued.
Vendors:

Available Properties

Density, ASTM D792
Melt Flow, ASTM D1238
Hardness, Shore D, ASTM D2240
Tensile Strength, Yield, 2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Elongation at Break, 2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Flexural Yield Strength, ASTM D790, Test specimens were injection molded by ASTM D1897
Flexural Modulus, ASTM D790, Test specimens were injection molded by ASTM D1897
Izod Impact, Notched, ASTM D256
Instrumented Impact Total Energy, ASTM D3763
Deflection Temperature at 1.8 MPa (264 psi), ASTM D648
Transmission, Visible
Processing Temperature, extrusion
FDA, See notes for details.
USP Class VI

Property Data

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Manufacturer Notes:
Chevron Phillips Chemical Company LP; ChevronPhillips

Category Notes
Plastic

**
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USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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