CHLUMIAO®618 CAS 3806-34-6

O,O’-Dioctadecylpentaerythritol bis(phosphite)

CAS No. 3806-34-6

Application Instructions

A new type of phosphorus-containing antioxidant with excellent performance, which has a high effective phosphorus content, strong ability to decompose hydroperoxides, and excellent initial colorability and transparency. It can be used in food packaging materials to replace antioxidant BHT and auxiliary antioxidant DLTP. It is mainly used for polyethylene, polystyrene, polypropylene, ABS resin, ethylene-vinyl acetate copolymer, etc., and can also be used for polyvinyl chloride and polycarbonate. This product can be used in combination with hindered phenolic antioxidants or hindered amine light stabilizers to produce a better synergistic effect. Suggested addition amount: 0.3-5.0%

Description

Packaging specification

20KG carton

Application

ABS, PC, PU, TPE elastomers

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Low Impurity Phosphites
CHLUMIAO® DPOP CAS 15647-08-2 2-ethylhexyl diphenyl phosphite
CHLUMIAO® 8621 CAS 68123-00-2 Antioxidant 8621
CHLUMIAO® DPDP CAS 26544-23-0 Antioxidant DPDP
CHLUMIAO® PDDP CAS 25550-98-5 Antioxidant PDDP
CHLUMIAO® PDOP CAS 3164-60-1 Antioxidant PDOP
CHLUMIAO® TPP CAS 101-02-0 Antioxidant TPP
CHLUMIAO® Poly(dicyclopentadiene-co-p-cresol) CAS 68610-51-5 Poly(dicyclopentadiene-co-p-cresol)
CHLUMIAO® SEED CAS 42774-15-2 Antioxidant SEED / Omnistab LS 5519 / Light Stabilizer 856
Inhibited phenolic Antioxidants
CHLUMIAO® 264 CAS 128-37-0 Antioxidant 264 / Butylated hydroxytoluene
CHLUMIAO® 2,6-Di-tert-butylphenol CAS 128-39-2 2,6-Di-tert-butylphenol
CHLUMIAO® 300 CAS 96-69-5 Irganox 300 / Antioxidant 300
CHLUMIAO® 2246 CAS 119-47-1 Irganox 2246 / BNX 2246
CHLUMIAO® 1222 CAS 976-56-7 Antioxidant 1222 / Irganox 1222
CHLUMIAO® 702 CAS 118-82-1 Irganox 702 / Antioxidant 702 / Ethanox 702
CHLUMIAO® DBHQ CAS 88-58-4 Antioxidant DTBHQ
CHLUMIAO® MTBHQ CAS 1948-33-0 2-tert-butylhydroquinone聽 Industrial Grade
CHLUMIAO® 1076 CAS 2082-79-3 Irganox 1076 / Antioxidant 1076
CHLUMIAO® 1010 CAS 6683-19-8 Irganox 1010 / Antioxidant 1010
CHLUMIAO® 1330 CAS 1709-70-2 Irganox 1330 / Ethanox 330
CHLUMIAO® 1520 CAS 110553-27-0 Irganox 1520 / Antioxidant 1520
Phenol Free Phosphites Antioxidants
CHLUMIAO® 8608 CAS 26544-27-4 Antioxidant AO DPD / Everaox 202
CHLUMIAO® 430 CAS 36788-39-3 Antioxidant 430 / WESTON 430
CHLUMIAO® 8608T CAS 1334238-11-7, 69439-68-5 Antioxidant 8608T
CHLUMIAO® 8627 CAS 68610-62-8 Antioxidant 8627
CHLUMIAO® TDP CAS 25448-25-3 Antioxidant TDP
CHLUMIAO® TLP CAS 3076-63-9 Antioxidant TLP
CHLUMIAO® TOP CAS 301-13-3 Antioxidant TOP
CHLUMIAO® TTDP CAS 77745-66-5 Antioxidant TTDP
Thiol esters Antioxidants
CHLUMIAO® DLTDP CAS 123-28-4 Dilauryl thiodipropionate
CHLUMIAO® DSTDP CAS 693-36-7 istearyl thiodipropionate/ Antioxidant DSTDP
Aminic Antioxidants
CHLUMIAO® 3114 CAS 27676-62-6 Irganox 3114 / Antioxidant 3114
CHLUMIAO® 4,4′-biphenol CAS 92-88-6

4,4′-biphenol

Metal deactivators Antioxidants
CHLUMIAO® 1098 CAS 23128-74-7 Irganox 1098 / Antioxidant 1098

Antioxidant 618 Application scenarios

1. Polyolefin (PP/PE) Processing and Long-Term Stabilization:

Synergistically with hindered phenols (such as Irganox 1010), it inhibits thermo-oxidative degradation of PP and PE during high-temperature extrusion/injection molding, protecting molecular weight and mechanical properties. Suitable for food packaging films, automotive parts, pipes, etc. Adding 0.1%–0.3% meets FDA food contact standards.

2. PVC Heat Stabilization and Transparency Maintenance:

Used in rigid PVC (pipes, profiles) and flexible PVC (films, cable materials), it inhibits HCl release and yellowing during processing. Combined with metal soaps and epoxy stabilizers, it improves heat resistance. Adding 0.1%–0.3% is suitable for transparent products and food contact grade materials.

3. Engineering Plastics: Heat and Oxidation Resistance and Color Protection:

Compatible with ABS, PC/ABS, nylon, PET, etc., preventing heat and oxidative degradation during high-temperature processing and long-term use, improving the color and toughness of products. Used in appliance housings, automotive interior parts, electronic components, etc., added at 0.2%–0.4%.

4. Elastomer and Rubber Anti-aging:

Used as an antioxidant in EPDM, SBS, NBR, etc., inhibiting heat and oxidative aging and metal-catalyzed degradation, improving the fatigue resistance of outdoor/high-temperature products such as sealing strips, hoses, and tires. Added at 0.3%–0.5%.

5. Food Contact Material Compliance and Stability:

Low toxicity and compliant with FDA 21 CFR 178.2010, used in food contact grade PP, PE, PVC, PET, etc., such as packaging films, containers, and seals. Controlled addition at 0.1%–0.3% to prevent the migration of harmful substances.

6. Stabilization of Coating and Adhesive Systems:

Prevents pre-crosslinking during storage and curing of solvent-based/water-based coatings and UV-cured adhesives, improves the weather resistance of alkyd resins and acrylic coatings, avoids coating delamination and gelation, suitable for outdoor architectural coatings, automotive refinish paints, etc., add 0.1%–0.3%.

7. Insulation Protection for Wires and Cables:

Chelates metal ions, inhibits the catalytic oxidation of cross-linked PE, PVC, and EVA insulation layers by copper, iron, etc., improves the long-term aging resistance and insulation reliability of power cables and communication cables, add 0.2%–0.4%, suitable for high-temperature and humid environments.

8. Synergistic Compounding of Polymer Anti-aging Systems:

Synergistically combines with hindered phenols, thioether antioxidants, and light stabilizers to construct a highly efficient anti-aging system, improving the weather resistance, heat resistance, and yellowing resistance of materials, suitable for harsh environments such as outdoor building materials (plastic doors and windows, railings), and automotive exterior parts. The compounding ratio is optimized according to the materials.

9. Polyester and Polycarbonate (PC) Stabilizer:

Used in engineering resins such as PET and PC to inhibit thermo-oxidative degradation during processing and use, maintaining the transparency and mechanical properties of products. Suitable for beverage bottles, optical lenses, electronic device housings, etc. Add 0.1%–0.3%.

10. Calcium-Zinc Stabilizer Synergistic Effect:

As an auxiliary component of calcium-zinc composite stabilizers, it improves the thermal stability and weather resistance of PVC during processing, reduces heavy metal dependence, and is suitable for environmentally friendly PVC products. The compounding ratio is adjusted according to the formulation.

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