Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Eastman DTBHQ Antioxidant

Eastman DTBHQ Antioxidant is a high-performance hindered phenolic antioxidant from Eastman’s specialty additives portfolio. Designed for polymer stabilization—especially in polyolefins and elastomers—it delivers superior thermal and oxidative resistance during processing and end-use. Its low volatility and excellent compatibility ensure long-term protection without blooming or discoloration. Widely specified in demanding industrial applications requiring regulatory compliance and consistent performance.
  • eastman dtbhq antioxidant_fe230845
  • eastman dtbhq antioxidant_fe230845

Features Of Eastman DTBHQ Antioxidant

  1. Highly effective hindered phenolic antioxidant for thermal and oxidative stabilization.

  2. Excellent compatibility with a broad range of polymers, including polyolefins, styrenics, and engineering thermoplastics.

  3. Low volatility and high melt stability, supporting high-temperature processing such as extrusion and injection molding.

  4. Minimal color formation during processing and long-term aging, preserving product aesthetics.

  5. Regulatory compliance aligned with major global food-contact and industrial safety standards (e.g., FDA 21 CFR §178.2010, EU Directive 10/2011).

Typical Applications Of Eastman DTBHQ Antioxidant

  1. Polypropylene (PP) and polyethylene (PE) fibers, films, and molded parts.

  2. Styrenic resins including ABS, HIPS, and SAN for durable consumer goods.

  3. Engineering plastics such as polybutylene terephthalate (PBT) and polyamide (PA) components.

  4. Adhesives, sealants, and hot-melt formulations requiring extended service life.

  5. Recycled polymer streams where enhanced oxidative resistance is critical to performance retention.

Specifications Of Eastman DTBHQ Antioxidant

Chemical TypeHindered phenol (2,6-di-tert-butylhydroquinone)
Product FormFree-flowing white to off-white crystalline powder
AppearanceCrystalline solid, odorless
Melting Point124–128 °C
Assay (by HPLC)≥ 99.0%
Volatility (150 °C, 2 hrs)≤ 1.0% weight loss
SolubilitySoluble in common organic solvents (e.g., acetone, toluene, chloroform); slightly soluble in water
Primary ApplicationsPolyolefins, styrenics, engineering thermoplastics, adhesives, recycled polymers


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