Application of Alkyl Phenolic Resins (Novolaks) Difference between RESOL

Difference between RESOL & NOVOLAC.

Alkyl Phenolic Resin/ Novola/Tackifier

Layers of Rubber need to be “held” in place before “curing”

Tackifier Resins impart “tack” to build these layers

Chemical Bond Formation

Occur during vulcaniztion

Hydrogen Bonding

Formend by Phenolic resin tackifiers

Van der Waals Forces

Weak intermolecular attraction improved by all tackifiers resins

 

ALKYL PHENOL RESINS / TACKIFIER / TACKIFYING/INSULATING/PTBP
	POLYTONE® AP 120	POLYTONE® AP 120 H	POLYTONE® AP 120 E
Colour	Pale Yellow/Light Reddish Brown	Pale Yellow/Light Reddish Brown	Light Reddish Brown
Colour Gardner (60% Soln in Xylene)	8 Max	8 Max	12 Max
Softening Point (Ball & Ring)	92 – 103 °C	98 – 110 °C	135 – 145 °C
Acid Value	42 mg KOH/ g resin (Max)	60 mg KOH/ g resin (Max)	85 mg KOH/ g resin (Max)

 

ALKYL PHENOL RESINS / TACKIFIER / TACKIFYING/PTOP
	POLYTONE® AP 121	POLYTONE® AP 121 H
Colour	Pale Amber	Pale Amber
Softening Point (Ball & Ring)	85 – 95 °C	92 – 104 °C
Acid Value	42 mg KOH/ g resin (Max)	42 mg KOH/ g resin (Max)
Free Phenol	1.0 % Max	1.0 % Max

 

• Industry Leader & Standard: SI Group/SCHENECTADY (SP 1068)
• Other Players: Sumitomo Bakelite, Arakawa, Kolon
• Indian Players: SI Group
• Major Consumer : Tire, Tire Remolding Compound Maker
• Other Products used in this application
  • Hydrocarbon Resin
  • Petroleum Resin
  • C9 Resin

 

Rubber Goods (Reinforcing)	Mounding Compounds	Abrasives
Tire/Tyre	Foundry	Cutting Wheels
Conveyor Belts	Switch Gears
Hose
Rubber Coated Fabric
Mechanical Goods

 

Alkyl Phenolic Resin/Reinforcing

• These resin in presence of catalyst become “Thermoset”.
• They provide “plasticizing effect” while processing.
• They increase “Shore Hardness” of Rubber Compound.
• They provide Hardness, Chip Resistance, Abrasion Resistance.