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Elmet Technologies

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JSC SKI-5PM Synthetic rubber
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)

Material Notes: Description: SKI-5PM cis-isoprene synthetic rubber is cis-1.4-polyisoprene produced by polymerization of isoprene in solution using stereospecific catalyst based on neodymium compounds. The rubber is stabilized by mixture of two non-staining antioxidants. Content of cis-1,4-units, min: 98 %.REACH registered; KKDIK, K-REACH, DUIN pre-registered.

CAS: #9003-31-0

Application: widely used for production of rubbers used in food and medical industries, in manufacture of individual protection means for respiratory tract (gas masks), color rubber products and other industrial purposes. May be used as intended without limitation as to food types contacted or conditions of use, and that such uses may properly be said to comply with the US Federal Food, Drug and Cosmetic Act and all applicable regulations, including 21 C.F.R. § 177.2600 (“Rubber articles intended for repeated use”).Rubber should not contain any foreign impurities and must meet the following requirements:

Appearance: briquettes (bales)

Color: from white to light-milky

Information provided by JSC, Synthez-Kauchuk

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Physical PropertiesOriginal ValueComments
Volatiles <= 0.70 %
@Time 3600 sec
ASTM D5668
Mooney Viscosity <= 5.0spread within a batch
 72 - 84
@Temperature 100 °C
ML 1+4; ASTM D 1646
Ash <= 0.50 %ASTM D 5667
Storage Temperature <= 30.0 °C
 
Processing PropertiesOriginal ValueComments
Shelf Life 24.0 Month
 
Descriptive Properties
Content<3%Extract, ASTM D 5774
 0.04-0.2%antioxidants: Tris (2,4-di-tert-butylphenyl) phosphite
 0.15-0.4%antioxidants: Agidol-1 (???)
 0.6-1.4%Stearic acid
Rheometric Properties10.4-15 dNmMH, ASTM D 5289
 1-2 dNmML, ASTM D 5289
 2-3.2 mints1, ASTM D 5289
 3.5-5 mint50, ASTM D 5289
 6-8 mint90, ASTM D 5289

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PJSC026 / 317846

Ensinger PEI

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