HRJ-4047 is an octylphenol and formaldehyde thermoplastic resin that is used to increase tack in natural rubber and synthetic elastomers.
HRJ-4047 is a thermoplastic resin that is excellent for use in natural rubber and synthetic elastomers. It is used as an additive to rubber stocks to impart tack to polyisoprenes, polybutadienes, and SBR rubbers and polymers.
HRJ-4047 is also used at 3-8 phr in tire building formulations to provide a fast hold of the tire parts until vulcanized or cured into an integral unit.
Physical form: Solid pellets
Specific gravity: 1.04
Softening point (Ball and Ring): 92-101 °C
Acid number: 26-42
Primary Chemistry: Octylphenol and formaldehyde resin
Thermoplastic resin
Fast hold of the tire parts
Plies, tread stocks, and sidewalls don't hold fast to the tire until vulcanization or curing
Polyisoprenes and polybutadiene polymers
SBR rubbers and elastomers
Tire building applications
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