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BNX 1225 TPR is a 45% active pelletized concentrate of the antioxidant blend BNX 1225 in an SIS (styrene-isoprene-styrene) thermoplastic rubber. The BNX 1225 component is a synergistic blend of BNX 1010 and Benefos® 1680 at a 1:1 ratio, which provides excellent heat stability and oxidation resistance. It also exhibits good compatibility with resins and excellent extraction resistance. The SIS component has a styrene content of 14%, diblock content of 12% and a melt index of 9.

Functions: Antioxidant

Compatible Polymers & Resins: Polyethylenes (PE), Polypropylenes (PP), Polyurethanes (PU), Polyvinyl Chloride (PVC)

Features: Free Flowing, Low Volatility, Oxidation Resistant

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions

Features & Benefits

Advantages
  • Accurate dispensing in loss-in-weight feeders (i.e. K-TRON®) 
  • Uniform pellet shape and size 
  • Non-friable pellets that are durable enough for air conveying 
  • High melt resistance / non-bridging or blocking 
  • Increased processing efficiency 
  • Reduced handling time 
  • Improved product dispersibility in extruders and sigma mixers 
  • Compatible with standard antioxidant metering equipment 
  • Minimal screw slippage
  • Improved hygiene 
  • Low dusting form minimizes hazards associated with dust generation and accumulation 
  • Excellent compatibility with styrenic polymers, engineering plastics, polyurethanes, and PVC 
  • Low volatility 
  • FDA cleared for use in adhesives

Applications & Uses

Use Level
0.4% and 2%
Applications

BNX 1225 TPR is a 45% active concentrate of BNX 1225 in SIS provided in a convenient pelletized form. This product is recommended for use in the manufacture of hot-melt pressure sensitive adhesives (HMPSA) using single or twin-screw extruders. This unique product can also be used with sigma mixers to achieve a more uniform dispersion of the antioxidant in the HMPSA. BNX 1225 TPR is compatible with a wide range of SIS grades such as Quintac® 3620, Kraton® D1161P, Kraton® D1193, and Vector® 4113.

Guidelines for Use

Typical recommended loading concentrations in HMPSA range between 0.4% and 2% (0.2–1% based on the BNX 1225 active component). The exact formulation to be used is dependent on the substrate, performance requirements, and other factors, and should be determined by the user based on testing to simulate actual conditions of use.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Content % by weight43 - 47
Pellet Weight0.6 - 1.2g/50

Regulatory & Compliance

Certifications & Compliance
FDA Regulations

The components of BNX 1225 TPR have been cleared for use in adhesives under 21 CFR §175.105. Please contact your Mayzo representative for complete details, including restrictions of use.

Packaging & Availability

Regional Availability
  • Asia Pacific
  • North America

Storage & Handling

Shelf Life
24 Months
Storage

This product may be stored up to two years in a sealed container. Containers should be kept tightly closed when not in use and stored in a cool, dry place.