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USP Class VI Adhesives
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: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.02 g/cc0.0368 lb/in³ASTM D792
Melt Flow 10 g/10 min
@Load 5.00 kg,
Temperature 200 °C		10 g/10 min
@Load 11.0 lb,
Temperature 392 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 6565ASTM D2240
Tensile Strength, Yield 15.2 MPa2200 psi2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Elongation at Break 330 %330 %2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Flexural Yield Strength 22.2 MPa3220 psiTest specimens were injection molded by ASTM D1897; ASTM D790
Flexural Modulus 0.696 GPa101 ksiTest specimens were injection molded by ASTM D1897; ASTM D790
Izod Impact, Notched NB
@Thickness 3.17 mm		NB
@Thickness 0.125 in		ASTM D256
Instrumented Impact Total Energy 37.6 J27.7 ft-lbASTM D3763
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 39.0 °C102 °FASTM D648
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 91 %91 %
 
Processing PropertiesMetricEnglishComments
Processing Temperature <= 218 °C<= 424 °Fextrusion
 
Compliance PropertiesMetricEnglishComments
FDA YesYesSee notes for details.
USP Class VI YesYes

**
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Chevron Phillips K-Resin® KR03NW Styrene-Butadiene Copolymer, Sheet Grade
Chevron Phillips K-Resin® XK41 Styrene-Butadiene Copolymer, Sheet Grade
Chevron Phillips K-Resin® KK38 Styrene-Butadiene Copolymer, Sheet Grade
Chevron Phillips K-Resin® KR05NW Styrene-Butadiene Copolymer, Sheet and Blow Mold Grade
Chevron Phillips K-Resin® BK11 Styrene-Butadiene Copolymer, Injection Molding Grade

PCHEVK80 / 20289

USP Class VI Adhesives
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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