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Technical Data Sheet
Piccotac™ 7590-N Hydrocarbon Resin


Applications
  • Adhesives/sealants-B&C
  • Carpet construction
  • Case and carton closures
  • Casting wax
  • Hygiene adhesives
  • Labels non food contact
  • Packaging tape
  • Polymer modification
  • Protective coatings
  • Road markings
  • Roofing ingredients
  • Solvent borne packaging adhesives
  • Specialty tape
  • Tape non food contact
  • Wire/cable
Key Attributes
  • Allows lower than usual hot melt coating temperatures
  • Excellent compatibility and performance in SBS and SEBS block copolymer HMPSA systems
  • Excellent compatibility with natural rubber, SBR and polyolefins
  • Good balance of peel and shear properties
  • Light color, low odor
  • Low softening point, good low temperature properties

Product Description
Piccotac™ 7590-N Hydrocarbon Resin is an aromatic-modified, aliphatic hydrocarbon resin developed for the adhesives industry. Its specific degree of modification provides Piccotac 7590-N Hydrocarbon Resin with an excellent compatibility with styrene-based thermoplastic elastomers, and in particular SBS (styrene-butadiene-styrene and SEBS (styrene-ethylene/butylene-styrene) block copolymers. It is also compatible with APAO (amorphous poly-alpha-olefins), metallocene-catalyzed polyolefins, SBR, EVA, and many polar elastomers. Due to its low odor and very good thermostability, Piccotac 7590-N Hydrocarbon Resin is suggested as tackifying resin for high quality hot melt and hot melt pressure sensitive adhesives. Piccotac 7590-N is stabilized by addition of antioxidant.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
Ring and Ball Softening PointASTM E 2891 °C
Color, GardnerdASTM D61662
Cloudpoint, DACPe 22 °C
Cloudpoint, MMAPf 63 °C
Molecular Weightg 
     Mn 870
     Mw 1560
     Mw/Mn 1.8
     Mz 2850
Density 
     @ 25°C 0.97 kg/dm3
Melt Viscosity 
     @ 120°C 13000 cP
     @ 140°C 2100 cP
     @ 160°C 520 cP
Glass Transition Temperature (Tg)h 39 °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.
eCloud point temperature from 1:1 Vol:Vol xylene-diacetone alcohol, Eastman method.
fCloud point temperature from 2:1 Vol:Vol aniline-methylcyclohexane, Eastman method.
gMolecular weight measured via Gel Permeation Chromatography (GPC) using polystyrene standards, elution with THF.
hGlass transition temperature by differential scanning calorimetry.



Compatibility and Solubility
Compatible in useful proportions with natural rubber and synthetic rubbers, EVA (ethylene-vinyl acetate) copolymers, SEBS (styrene-ethylene/butylene-styrene), SBS (styrene-butadiene-styrene), SIS (styrene-isoprene-styrene) and SIBS (styrene-isoprene/butadiene-styrene) block copolymers, APAO (amorphous poly-alpha-olefins), mPE (metallocene-catalyzed polyethylene), mPP (metallocene-catalyzed polypropylene), low molecular weight polyethylene, paraffin and microcrystalline waxes.
Soluble at all useful proportions in aliphatic, aromatic and chlorinated hydrocarbons, esters and ethers. Insoluble in alcohols, glycols and water.


Packaging
Piccotac™ 7590-N Hydrocarbon Resin is pastillated and packed in polyethylene bags of 20 kg net, and supplied on shrinkwrapped pallets of 50 bags (1000 kg) each, from Eastman facilities in the Netherlands and from warehouses located in Europe.

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.

Piccotac™ 7590-N Hydrocarbon Resin material will remain within product specification limits for a period of at least twelve months after shipment from Eastman production facilities in The Netherlands, provided storage conditions outlined in this data sheet are observed. However, as we can neither anticipate the conditions under which the resin is processed nor the end use applications for which it is used, we recommend that the material be tested upon receipt.



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.


5/21/2020 2:39:57 PM