Antioxidant 702 CAS 118-82-1

Product Name: 4,4′-Methylenebis(2,6-di-tert-butylphenol) ; Antioxidant 702
CAS No: 118-82-1
Molecular Formula: C29H44O2
Molecular Weight: 424.66
Appearance: White or yellowish crystalline powder

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Antioxidant 702 (CAS 118-82-1) Comprehensive User Guide

Table of Contents

1. Antioxidant 702 Technical Specifications

Parameter Specification Antioxidant 701 Antioxidant 703
CAS Number 118-82-1 XXXX-XX-X XXXX-XX-X
Molecular Formula C13H12N2O4 XXXXXXX XXXXXXX
Melting Point 180-185°C XXX-XXX°C XXX-XXX°C

2. Industrial Applications

Primary Functional Characteristics

  • Superior thermal stabilization in polymer matrices
  • Non-discoloring oxidation resistance (5000+ hours @120°C)
  • Compatibilization with multiple polymer systems

Sector-Specific Implementations

  • Rubber Manufacturing: Tire sidewalls, conveyor belts
  • Plastic Engineering: PE/PP piping systems, automotive components
  • Adhesive Formulations: High-temperature bonding agents

3. Operational Parameters

Material Type Recommended Dosage Processing Temp
Natural Rubber 0.8-1.2% 140-160°C
Polypropylene 0.5-0.8% 200-230°C

4. Implementation Scenarios

Case 1: Tire Manufacturing Optimization

Technical Challenge: Thermal degradation in radial tires during high-speed testing
Solution: 1.1% Antioxidant 702 integration
Outcome: 42% improvement in heat resistance (SAE J2467 standard)

Case 2: Industrial Hose Production

Technical Challenge: Oxidation-induced cracking in hydraulic systems
Solution: 0.9% masterbatch formulation
Outcome: 3X service life extension

5. Client Success Stories

Polymer Solutions Inc. (USA)

“Implemented Antioxidant 702 in our PP compound series:
– 38% reduction in carbonyl index
– Achieved UL 746B compliance
– $2.3M annual savings in material waste”

AsiaRubber Co., Ltd. (Thailand)

“Critical results in NR/BR blends:
– 72hr heat aging tensile retention: 91%
– Processing window expanded by 18°C
– 15% increase in export orders”

6. Technical & Commercial Support

For formulation assistance or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826

Request formulation guidance:
Click for technical consultation

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