Antioxidants.

ACETO CORP.

Polyphenols for plastics and rubber.

AKROCHEM CORP.

Antioxidants include hindered phenols, mercapto-benzimidazoles, dihydroquinoline, butylated paracresol, amines, and unsaturated acetals.

ALBEMARLE CORP.

Offers Ethanox and Ethaphos primary and secondary antioxidants for use in a wide variety of polymers from thermoplastic elastomers and engineering blends/alloys to hot-melt adhesives and tackifiers, as well as polyolefins. Overall stability improves processing capacity without degradation. Both can be combined with other polymer additives in custom ALBlend additive packages.

AMERICHEM INC.

Concentrates contain antioxidants, uv absorbers, and other stabilizers. Available for almost all thermoplastics in cubes, pellets, and powders.

BAYER MATERIALSCIENCE LLC 

Vulkanox antioxidant and antiozonant products protect against oxygen, heat, and unoriented crack formulation (crazing), and are also effective, to some extent, against fatigue. Several nonstaining grades, where staining is absent or minimal, for use in light-colored and transparent applications.

CHROMA CORP.

Dry powder or compounding of antioxidant masterbatches from 25-lb to truckloads in all resin systems and additives combined with colorants to provide multifunctional concentrates.

CIBA SPECIALTY CHEMICALS CORP. ADDITIVES DIV.

Irganox high-molecular-weight hindered phenolics provide long-term oxidative and thermal stability. Irganox 1010 and 1076 have good compatibility with polyolefins and styrenics and are FDA-regulated. Irganox MD-1024 is a metal deactivator and all-purpose antioxidant. Irganox 1035, 1010 and MD-1024 are for wire and cable. Irganox B-225 and B-215 low-volatility, heat- and hydrolysis-resistant additive blends reportedly offer excellent processing and long-term stability in polyolefins.

New FS systems provide polyethylene fibers and thin-section materials with reportedly exceptional resistance to gas fade, excellent initial color, and a combination of long-term thermal and uv stability, in a phenolic-free stabilizer package. FS 812, a new combination of hindered amine stabilizer, uv absorber and hydroxyl amino processing stabilizer, offers gloss and color retention for molded-in color applications.

Irganox HP products are synergistic combinations of phenolic antioxidants, phosphites, and a new Lactone processing stabilizer. The combination results in improved melt flow control, allows for higher temperature processing, and can result in improved overall processing, heat, and long-term stability of the polymer.

New Irganox XP processing stabilizers are combinations of the new lactone processing stabilizer, high-performance phosphites and phenolic antioxidant. Irganox XP combines superior compatibility and solubility with outstanding processing stability and color control.

Irganox E, a vitamin E antioxidant for use in food and medical packaging offers superior melt flow and color control, low migration, and superior extraction resistance.

CLARIANT CORP. PLASTICS BUSINESS UNIT

Sandostab P-EPQ high-molecular-weight phosphonite secondary antioxidant for polyolefins and engineering resins is stable to 660 F and highly soluble and compatible in polyolefins, especially lower-density polyethylenes. Broadly FDA-approved with low migration, it synergizes with sulfur and phenolic antioxidants and lactones and is not deactivated by fillers such as talc. Especially suited for low-water-carryover polyolefin applications like 2X100 mil slit tapes. Also recommended for applications requiring high clarity. Product continues to be used for all polyolefins, styrenics, PC, polyesters, polyamides, polyether imides and other engineering resins to aid in maintaining color, rheological control and physical properties. Sandostab P-EPQ also inhibits burnout of many borderline heat-stable colorants for polyolefins and engineering resins and aids in dispersion of fillers and colorants and extends uv stability of recycled resins by providing better physical property retention of recycled resins prior to uv exposure.

Hostanox PAR24 triphenyl phosphite secondary antioxidant offered alone or blended with Hostanox 010 and 016 as synergistic combinations of processing stabilization of polyolefins.

Hostanox 03 hindered phenolic antioxidant recommended for low-water extractability in appliance and nonappliance applications for extended long-term thermo-oxidative stability. It is synergistic with sulfur-based secondary antioxidants. Hostanox 010 high-molecular primary antioxidant and Hostanox 016 lower molecular-weight antioxidant recommended as processing and long-term thermo-oxidative stabilizers for polyolefins and engineering resins. Both are synergistic with sulfur- and phosphorus-based secondary antioxidants and offered as blends with phosphites.

Hostanox 014 primary antioxidant especially suited for polyolefin applications in thin and thick sections that need low gas staining and enhanced uv stabilization. Alone or combined with Sandostab P-EPQ or PAR24, it will not distract from uv stability of thin-section PP in fibers or slit films but rather enhance properties without the tendency for gas yellowing.

Hostanox 0SP-1 metal deactivator and antioxidant has stronger metal deactivating properties than other metal deactivators.

CROMPTON CORP.

Naugard antioxidants include hindered phenolics, aromatic amines, and phosphites. Phenolics include Naugard BHT, Naugard 76 and Naugard 10 for polyolefins, styrenics, etc.

Liquid phenolic products include Naugard 536 for use in emulsion polymerization such as ABS and Naugard 529 and Naugard SP.

Aromatic amines include Naugard Super Q for carbon black systems such as wire and cable, and geomembranes. Also Naugard 445 white nonstaining secondary amine for ABS, polyolefins, nylon and polyether polyols; Naugard SA stabilizer; and Naugard HM11 and HM22 phenolic/amine blends.

Phosphites include Naugard P and Wytox 312 general-purpose secondary antioxidants; Naugard 524 high-performance solid phosphite; and Naugard 492 phenolic/ phosphite blend.

Weston polymer additives include various liquid and solid organic phosphites that function as hydroperoxide decomposers, metal-complexing agents, and antioxidants and offer increased resistance to heat and light.

Ultranox 626, 627A and 641 high-performance secondary antioxidants offer cost-effective, optimum processing stability and gas-fade resistance to polyolefins, HIPS, ABS, PET and other polymers.

Weston 619, Ultranox 626 and 627A have broad regulatory approval in PP, PE, PVC, and PC for food packaging.

CYTEC INDUSTRIES

Phenolic antioxidants include Cyanox 425, 2246, 1741 and 1790 for polyolefins and styrenics. Cyanox 1790 high-performance phenolic is said to offer excellent activity at one-half to one-third typical loadings as other hindered phenolics. It reportedly offers excellent gas-fade resistance, melt stabilization, and low hot-water extractability.

Cyanox 2777 high-performance phenolic/ phosphite blend is based on Cyanox 1790 and hydrolysis-resistant tris(2,4-di-t-butylphenyl) phosphite.

New Cyanox 2888 antioxidant/phosphite blend is said to offer excellent melt processing protection in many resin systems and is resistant to discoloration. It also provides a high level of thermo-oxidative protection in rotomolded LLDPE applications.

Thioester antioxidants such as Cyanox LTDP, STDP, 1212, and 711 liquid synergize with phenolics for in-service stabilization of polyolefins and other polymers.

PTZ phenothiazine stabilizes unsaturated polyolefins, styrenics, PUR, and vinyls. Also functions as an inhibitor and short-stopping agent for acrylic and vinylic monomers. Xenoxyl stabilizer inhibits polymerizations of acrylic, styrenic and vinylic monomers.

DOVER CHEMICAL CORP. SUB. OF ICC INDUSTRIES, INC.

Dovernox solid hindered phenol antioxidants used as processing stabilizers for various polymers.

Doverphos liquid and solid organo-phosphites used as heat stabilizers for PVC, ABS, and polyolefins and also improve color stability in polyesters, polyurethanes, and alkyds.

EASTMAN CHEMICAL CO.

Hydroquinone derivatives are antioxidants for polyether polyols. Eastman Inhibitor OABH is a copper deactivator for polyolefins, especially in wire insulation. Tenox BHT and Tenox BHA are food-grade antioxidants for PE packaging.

ELIOKEM, INC.

Nonstaining, nondiscoloring Wingstay phenolic antioxidants provide long-term protection against aging and degradation of polymers. Products are suited for rubber and plastic including solid rubber applications, latex foams, coatings and ABS resins. Some are suitable for food-contact applications. Wingstay amine antioxidant/antiozonants have low volatility and high activity. Suitable for high-temperature applications requiring resistance to weather and ozone.

FAIRMOUNT CHEMICAL CO., INC.

Mixxim AO-20 and AO-30 high-molecular-weight hindered phenolic antioxidants provide processing and in-use thermal stability and color stability to plastics and elastomers. Mixxim CD-12 and CD-24 metal deactivators retards degradation of polyolefin wire and cable. Also reduces extruder corrosion by halogenated flame-retardant polymers.

FLOW POLYMERS, INC.

Concentrated dispersions of all standard antioxidants come in a choice of compatible vehicles.

GREAT LAKES CHEMICAL CORP.

Range of phenolic and phosphite antioxidants for various polymers includes Lowinox TBM6 thiobisphenol antioxidant, which has a synergistic effect with carbon black, for use in PE cables and pipes. Lowinox 22M46 and 44B25 are bisphenols widely used in synthetic rubber and latices.

Anox PP18, 20, 1C-14, and 70 high-molecular-weight hindered phenolic antioxidants used in polyolefins. Anox PP18 and Lowinox GP45 used to stabilize styrenic polymers. Alkanox 240 is a widely used hydrolytically stable phosphite.

HITECH POLYMERS, INC.

Custom made pelletized concentrates of antioxidants, pigments, and other additives for elastomers and engineering thermoplastics.

KENRICH PETROCHEMICALS, INC.

Titanate coupling agents provide antioxidant metal deactivation. Reported to be highly dispersible and about 25 times more efficient than products such as alkyl triaryl phosphites.

MAYZO, INC.

Manufactures and imports hindered phenolic antioxidants and proprietary liquid antioxidants.

MICROPEL CORP.

Burlox BHT (butylated hydroxy toluene) primary antioxidant for use in rubber, polyolefins, PS, thermoplastic elastomers, and coatings. Meets Food Chemical Codex requirements.

PATCO ADDITIVES DIV. AMERICAN INGREDIENTS CO.

Lactate-based neutralizers for use with all common antioxidant systems in polyolefins. Pationic 1233, 1240, 1250, 930, and 940 provide effective neutralization of residual metal catalysts and improve color and gas-fade properties.

PLASTICS COLOR & COMPOUNDING

Concentrates contain antioxidants, heat and light stabilizers, and lubricants in PS, polyolefins, and most other thermoplastics.

PMC SPECIALTIES GROUP, INC. PMC INC.

Ionol CP food grade BHT can be used for technical grade applications. CAO-5 (antioxidant 2246), a tert-butylphenol highly effective nonstaining, non discoloring phenolic antioxidant.

POLYONE CORP. COLOR & ADDITIVE MASTERBATCHES

Specialty additive concentrates, Liquid or solid, with or without colorants available with antioxidants and other additives.

RHODIA, INC.

Uvi-Nox 1494 (tert-isobutyl-nonylphenol) liquid primary antioxidant provides improved thermal stabilization of polyolefins and lower vapor pressure.

Trialkyl and dialkyl hydrogen phosphites are heat, light and color stabilizers in polymers. Offer high solvency, slow oxidation, low volatility and the ability to combine with metal halides.

SCHENECTADY INTERNATIONAL

Isonox 129 high-performance hindered phenolic crystalline antioxidant provides process stability to polyolefins and styrenics.

Isonox 129 has broad FDA approval for indirect food contact. Also offers Isonox 132 low-cost, liquid hindered phenolic antioxidant for stabilizing liquid polyols.

A. SCHULMAN, INC.

Polybatch antioxidant concentrates include different carriers and other additives as required.

STANDRIDGE COLOR CORP.

Custom-formulated antioxidant concentrates for nylon, PP, and polyester fibers as single dispersions or in combination with other additives or colorants.

TECHMER PM, LLC

Concentrates of phenolics, phosphites, or blends of the two.

TEKNOR COLOR CO. DIV. OF TEKNOR APEX CO.

Company offers custom-formulated antioxidant concentrates for commodity resins can include other additives and processing aids.

R.T. VANDERBILT CO., INC.

Company offers vanox phenolic and aromatic-amine antioxidants for polyethylene, polypropylene, nylon, and flexible urethane polyols. Vanox synergistic antioxidant systems improve high-temperature stability of filled polypropylene.