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Technical Data Sheet
Endex™ 160 Hydrocarbon Resin


Applications
  • Adhesives/sealants-B&C
  • Bookbinding
  • Carpet construction
  • Case and carton closures
  • Casting wax
  • Commerical printing inks
  • Concrete
  • Film modification
  • Hygiene adhesives
  • Labels non food contact
  • Packaging tape
  • Polymer modification
  • Protective coatings
  • Roofing
  • Solvent borne packaging adhesives
  • Specialty tape
Key Attributes
  • Heat stability
  • Highest softening point available
  • Pure aromatic monomer composition
  • Water-white initial color

Product Description
A water-white thermoplastic resin made from purified aromatic hydrocarbon monomers. Used to modify the melt flow and increase the temperature resistance of styrenic plastic and rubber. Reinforces the styrene end blocks of styrenic block copolymers. In adhesives Endex™ 160 hydrocarbon resin will associate with the styrenic endblocks, producing higher cohesion at temperatures up to 70°C without affecting tack and adhesion properties. Endex 160 hydrocarbon resin has the highest softening point among all hydrocarbon resins available from Eastman.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General
Ring and Ball Softening PointASTM E 28160 °C
Color, Yellowness IndexdASTM E 3138
Cloud Pointe 
     DACP -12 °C
     MMAP 16 °C
     OMS 136 °C
Molecular Weightf 
     Mn 3180
     Mw 9800
     Mw/Mn 3.1
     Mz 17490
Melt Viscosity 
     10 poise 245 °C
     100 poise 210 °C
     1000 poise 180 °C
Glass Transition Temperature (Tg)g 110 °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.
d50% solids in toluene, 50 mm path length, Illuminant C, and a 2° observer.
eCloud point temperature testing by Eastman methods. MMAP from 1:2 vol:vol mixture of methylcyclohexane and aniline. DACP from 1:1 vol:vol mixture of diacetone alcohol and xylene. OMS from odorless mineral spirits.
fMolecular weight measured via Gel Permeation Chromatography (GPC) using polystyrene standards, elution with THF.
g Glass transition temperature by differential scanning calorimetry, 20°C/minute.



Compatibility and Solubility
Compatible with polystyrene or styrene-containing polymers. Incompatible with polyolefins, natural rubber, butyl rubber, EPDM, and EVA. 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 Endex™ 160 is soluble in the VOC exempt solvents t-butyl acetate (TBA) 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 multiwall 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 applicale 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.



The useful life of this product can be affected by storage and handling conditions. When stored in the original unopened container in an enclosed area and protected from moisture, extreme temperatures and contamination, the shelf life of this product is estimated to continue to meet applicable sales specifications for 3 years from the date of manufacture. Shelf life is a guide not an absolute value. The product should be reanalyzed for critical properties at the end of its shelf life to see if it meets specification for use.



Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.


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.


11/4/2020 8:09:43 AM