Polymer antioxidants can be added to improve the shelf life of the product or to improve its high-temperature stability. while adding a stability margin during thermal processing.
Antioxidant additives can be classified into hindered phenolic, metal deactivates, amine, phosphites, thioesters and binary blends.
Hindered phenols are used as primary antioxidants. Organo-phosphites are sometimes used as secondary antioxidants. There is a synergistic effect when using different antioxidants blended together and the combination can meet heat and processing stability requirements.
Antioxidant product list
Primary antioxidant 1010, 1024, 1035, 1076, 1098, 1135, 1520, 1726, 1790, 245, 3114, 330, 445, 565, 5057, 697, 702, CPL, FS-042
Auxiliary antioxidants 168, 618, 626, DSTDP, DLTDP, 412s
Antioxidant Blend B215, B225, B900
Antioxidant Types, Features, and Applications
| Type | features | Application |
| hindered
phenolic |
Excellent Hydrolysis resistance
Extraction resistance Yellowing resistance Provide long term stability |
PE/PP pipe
High crystalline PP Elastomer Nylon |
| Phosphites/
Phosphonites |
Excellent processing stability and colour stability
Heat stability, no residual impurity Hard precipitation, no adhere to water, No blooming, improve the transparency of article Provide processing stability |
PP/PE, elastomer, transparent article, PC, PC/ABS, nylon, POM etc. |
| Thiosynergists | Long heat resistance better
than DSTDP/ DLTDP No odour |
For PP/PE need long term stabilizing, filler modified PP/PE, wire and cable |
| Metal
Deactivators |
Low melting point, easy to use
Good stability, strong anti-aging Extraction stability Deactivate metal ion activity to prevent it boosting polyolefins degradation |
PP/PE wire and cable
Filled modified materials |
| Antioxidant
blends |
Excellent processing and color stability
Heat stability, no residual impurity Granules form, no dust |
Polyolefins, PC and PC alloy
Nylon, styrenics |
| Name | CAS No. | Features |
| Primary Amine | ||
| Sinanox® 042 | 143925-92-2 | Used in Polypropylene Fiber, Automotive TPO/TPE, Prevent Gas Fading Discoloration |
| Sinanox® 445 | 10081-67-1 | non-discoloring aromatic antioxidant for rubber |
| Sinanox® 5057 | 68411-46-1 | liquid aromatic amine for processing and LTTS |
| Primary Hindered Phenolic | ||
| Sinanox® 1010 | 6683-19-8 | general phenolic antioxidant |
| Sinanox® 1024 | 32687-78-8 | phenolic AO and metal deactivator, for wire cable |
| Sinanox® 1035 | 41484-35-9 | sulfur-containing phenolic AO for wire and cable |
| Sinanox® 1076 | 2082-79-3 | low color, general phenolic antioxidant |
| Sinanox® 1098 | 23128-74-7 | the best antioxidant for PA |
| Sinanox® 1135 | 125643-61-0 | liquid phenolic AO, specifically for PUR |
| Sinanox® 136 | 181314-48-7 | radical scavenger for PP, PE, etc |
| Sinanox® 1520 | 110553-27-0 | synergistic, multifunctional AO for elastomers and TPE |
| Sinanox® 1790 | 40601-76-1 | sterically phenolic AO for PUR, PP, PET, gas fading & high extraction resistance |
| Sinanox® 245 | 36443-68-2 | phenolic AO for styrene polymers, adhesives, sealants, coatings |
| Sinanox® 3114 | 27676-62-6 | non-discoloring phenolic AO; high extraction resistance |
| Sinanox® 330 | 1709-70-2 | for PE/PP wire, cable, film, hot water pipe |
| Sinanox® 565 | 991-84-4 | AO for BR, IR, SBR, NBR, Adhesive, Tackifier Resin |
| Sinanox® 697 | 70331-94-1 | sterically phenolic AO and metal deactivator |
| Sinanox® 702 | 118-82-1 | excellent oil AO, for PP/PE/ABS and rubber |
| Sinanox® BHT | 128-37-0 | General Phenolic AO For Rubber, Oil, Cosmetic, Food Contact |
| Sinanox® CPL | 68610-51-5 | non-discoloring or pinking, AO for rubber, latex, SBR, ABS |
| Sinanox® GA 80 | 90498-90-1 | Low Color Phenolic AO for Low Gas Fading Discoloration |
| Auxiliary Phosphite | ||
| Sinanox® 1081 | 90-66-4 | Antioxidant for Rubber, Latex |
| Sinanox® 1500 | 96152-48-6 | For PVC, PP, PE |
| Sinanox® 168 | 31570-04-4 | hydrolytically stable phosphite, most widely used |
| Sinanox® 618 | 3806-34-6 | ABS, Styrenics |
| Sinanox® 626 | 26741-53-7 | high-performance phosphite antioxidant for engineering plastics |
| Sinanox® 9228 | 26741-53-7 | For Engineering plastics |
| Sinanox® DHOP | 80584-86-7 | For PVC |
| Sinanox® DPDP | 26544-23-0 | PVC, Resins |
| Sinanox® DPOP | 26401-27-4 | PVC, Polymers, PP |
| Sinanox® DPD | 26544-27-4 | PVC, Polymers |
| Sinanox® DPP | 4712-55-4 | unsaturated polyesters, PVC |
| Sinanox® H10 | – | PVC, Polymers |
| Sinanox® PEPQ | 119345-01-6 | For Engineering plastics |
| Sinanox® PDDP | 25550-98-5 | PVC, Polymers |
| Sinanox® PDP | 80584-86-7 | PVC, Polymers |
| BA AO TDD | 80584-85-6 | PVC, Polymers |
| Sinanox® TDP | 25448-25-3 | PVC, ABS, Polymers |
| Sinanox® TLP | 3076-63-9 | PVC, Polymers |
| Sinanox® TPPI | 101-02-0 | PVC, Polymers |
| Sinanox® TTDP | – | PVC, Rubber, Polymers |
| Auxiliary Thioester | ||
| Sinanox® 1726 | 110675-26-8 | for adhesives, elastomers and related products |
| Sinanox® 412s | 29598-76-3 | sulfur ester AO, higher stability than dltp/dstp |
| Sinanox® DLTDP | 123-28-4 | thioester AO with low melting point, for polyolefin, PS, ABS |
| Sinanox® DSTDP | 693-36-7 | thioester AO with low melting point, for polyolefin, PS, ABS |
| Sinanox® PDP | 80584-86-7 | liquid phosphite antioxidant for many dispersed polymer |
| Blends | ||
| Sinanox® B210 | Blend | synergistic phenol/phosphite blend, low phosphite content |
| Sinanox® 225 | 31570-04-4/ | synergistic phenol/phosphite blend, low phosphite content |
| 6683-19-8 | ||
| Sinanox® 215 | 31570-04-4/ | phenol/phosphite blend, medium phosphite content |
| 6683-19-8 | ||
| Sinanox® B900 | 2082-79-3/ | Synergistic phenol/phosphite blend, high phosphite content |
| 31570-04-4 | ||
| Sinanox® FS | Blend | 210/301/410/811 |
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