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Technical Data Sheet
Kristalex™ 3105SD Hydrocarbon Resin


Applications
  • Adhesives/sealants-B&C
  • Automotive
  • General assembly hotmelts
  • Labels non food contact
  • Packaging tape
  • Rubber modification
  • Tape non food contact
Key Attributes
  • Excellent thermal stability
  • Intermediate softening point
  • Low organic volatile content
  • Made from purified aromatic monomers
  • Suitable for use in food contact applications
  • Water-white initial color

Product Description
Kristalex™ 3105SD Hydrocarbon Resin is a water clear, highly color stable, nonpolar, low molecular weight thermoplastic polymer with low organic volatile content. This resin is compatible with a wide variety of oils, waxes, alkyds, plastics, and elastomers, and is soluble in many common organic solvents. It is indicated for use in plastics modification, adhesives, coatings, sealants, and caulks. In EVA-based hot melt adhesives Kristalex™ 3105SD is compatible with EVA grades with up to 18% vinyl acetate and is useful in formulating low-color, low odor adhesives with good low temperature properties. In styrenic block copolymer based adhesives Kristalex™ 3105SD preferentially associates with the styrenic endblocks, producing higher room-temperature cohesion without affecting tack and adhesion properties.

Kristalex™ 3105SD complies with many FDA regulations for applications involving food contact. Users of this product should determine its compliance for their specific application prior to use.



Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General
Ring and Ball Softening PointASTM E 28105 °C
Total Organic Volatile Contentd <300 ppm
Color, GardnerhASTM D 6166<1
Colore 
     YID 8
Cloud Pointj 
     DACP <-40 °C
     MMAP 4 °C
     OMS (full) 53 °C
Molecular Weighti 
     Mn 850
     Mw 1,500
     Mw/Mn 1.8
     Mz 2,400
Melt Viscosityf 
     1 poise 205 °C
     10 poise 165 °C
     100 poise 135 °C
     1000 poise 105 °C
Glass Transition Temperature (Tg)g 55 °C

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.
dTotal volatile content measured by High Performance Liquid Chromatography (HPLC)
e50% resins solids in toluene
fData measured by Brookfield RVT Viscometer with Thermosel
gGlass transition temperature by differential scanning calorimetry.
h50% in toluene.
iMolecular weight, z-average from gel permeation chromatography, elution with THF.
jCloud point temperature from 2:1 Vol:Vol aniline-methylcyclohexane, Eastman method.



Compatibility and Solubility
Compatible in useful proportions with a wide variety of materials, including styrene-butadiene rubber (SBR) and SBR block copolymers; neoprene, nitrile, polybutadiene, and acrylic polymers; chlorinated rubber; ethylene-vinyl acetate (EVA) resins; styrenated, vinylated, and drying oil alkyds; rosin ester resins; and ethyl-hydroxy-ethylcellulose (EHEC). Soluble in aliphatic, aromatic, and chlorinated hydrocarbons; esters; and ketones. Insoluble in alcohols and glycols; limited solubility in nitroparaffins. For low or zero VOC systems Kristalex™ 3105 is soluble in the VOC exempt solvents t-butyl acetate and perchlorobenzenetetrafluoride (PCBTF) and will tolerate some acetone and/or methyl acetate as a diluent in solvent systems based on TBA and/or PCBTF. VOC exemptions and environmental regulations vary regionally and compliance with local standards should be verified before any claims about VOC content are made.

Packaging
Pastilles in multi-wall paper bags (50 lbs, 22. 7 kg net wt).

Storage

Due to the thermoplastic behavior, pastillated and flaked resins may fuse, block or lump. This can be accelerated under any of the following conditions: 1) above ambient temperature, 2) prolonged storage, 3) pressure, e.g., stacking pallets, or a combination of these conditions. This is particularly applicable for low softening point resin grades.

In order to maintain the flake or pastille shape, we therefore recommend storing the material in a temperature-controlled area, be careful with stacking material or applying pressure and preventing prolonged storage.

It should be noted that lumping does not have a negative impact on the product specifications. Due to the nature of the product, claims regarding lumping cannot be accepted.

Resins are prone to gradual oxidation, some more so than others. This could result in darkening and/or it could have an adverse effect on the solubility of the resin in organic solvents or on its compatibility with polymers. Accordingly, it is recommended that strict control of inventory be observed at all times, taking care that the oldest material is used first.




Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.