CNSL Residue Oil/ Residol

Also called as Residol  or  CNSL Residol is partially polymerised cashew nut shell liquid (CNSL) is obtained as a residual by-product during distillation of cashew nut shell liquid to obtain mono hydroxy alkyl phenol and cardanol. The presence of the natural phenols, cardanol and cardanol makes it versatile raw materials for various industries.

The residol will be rich in cardol, which is conveniently used in the preparation of friction dust for brake linings, and also in rubber compounding formulations.  Residol is an active constituent of CNSL is a meta substituted phenol with long hydrocarbon side chain. As a result of its unique molecular structure, it has many useful properties, which are widely applied in the manufacturing of oil soluble resins, varnishes and paints, friction dusts and chemical resistant linings, rubber compounds, bonding resins, adhesives etc.

The residol  is said to have properties much superior to that of pine tar, which thus gets replaced in rubber formulations.

Application

  •  Friction Dust – Pulverised to different grades Residol resin is used as  stabilizing agent in brake products
  • Brake Lining- Acid-catalyzed condensations of formaldehyde and Residol are used in break lining as Friction Dust
  • Surface Coatings- Used in cycle paints(dark paints) , Residol-Drying oil varnishes, Aluminium paints, Black enamels, Zinc Chrome-Iron Primers
  • Furness Oil/Fuel -Formaldehyde Condensate of residol used in core oil binders
  • Rubber Formulation in Rubber Industries- Residol is used as plasticizer and as re-enforcing agent in rubber compounding

CNSL Residue Oil/ Residol TECHNICAL SPECIFIACITON

Colour                                                 : Black

Sp. Gravity at 300C                             : 1.01 to 1.03

Viscocity at 300C (Cps)                      : 7100            

Flash point                                           :   > 1000C

Polymerisation time                           : Max 2 Minutes