1. Introduction (Background)

In recent years, in processing fields such as plastics, rubber, and paints,

• Improved processability
• Improved appearance quality
• Improved production efficiency

have been strongly demanded.

To meet these demands, **ethylene bis-stearamide (EBS)** has attracted attention as a **multifunctional additive**.
👉 **ethylene bis-stearamide (EBS)**.

EBS is a **synthetic wax that simultaneously exhibits multiple functions such as lubrication, dispersion, and mold release**, and is used in a wide range of industrial fields.

2. Basic Properties

2.1 Chemical Information

• Chemical Name: N,N′-Ethylenebisstearamide
• Molecular Formula: C₃₈H₇₆N₂O₂ 
• CAS: 110-30-5
• Melting Point: Approx. 144～146℃ 

2.2 Physical Properties

• Appearance: White waxy solid (powder/granular)
• Water: Insoluble
• Organic Solvents: Soluble (at high temperatures)

✅ Features

• High melting point, high thermal stability
• Low toxicity
• Excellent processing adaptability

3. Chemical Structure and Mechanism of Functionality

EBS possesses the following characteristic structure:

• Long-chain fatty acid (hydrophobic)
• Amide group (polar group)

👉 This structure enables functionality

• within the resin (internal lubrication)
• on the surface/interface (external lubrication, dispersion)

in both areas.

4. Key Functions

4.1 Lubricant (Internal + External)

• Reduced melt viscosity
• Improved flowability
• Reduced friction

👉 Stabilization of extrusion and injection molding

4.2 Mold Release Agent

• Improved mold release from molds
• Reduced surface defects

👉 Improved productivity, improved yield

4.3 Dispersant

• Uniform dispersion of pigments and fillers

👉

• Prevents color unevenness
• Uniformity of mechanical properties
  

4.4 Slip Agent / Anti-blocking Agent

• Prevents adhesion between films
• Improved surface slip

👉 Improved film openability

4.5 Surface Modification (Gloss, Antistatic)

• Improved surface smoothness
• Improved appearance

👉 Creation of high-value-added products

5. Main Applications

5.1 Plastics (Primary Market)

Target resins:

• PVC, ABS, PS, PP, PE, etc.

Applications:

• Lubricant
• Mold release agent
• Dispersant

👉 Typical additive (approx. 0.5〜3%)

5.2 Rubber

• Anti-tack agent
• Processing aid
• Improved surface gloss

5.3 Paints / Inks

• Improved flowability
• Improved scratch resistance
• Promoted dispersion

5.4 Other Applications

• Powder metallurgy (lubricant)
• Paper/Textiles (antistatic, gloss)
• Asphalt modification

6. Benefits of Introduction

6.1 Improved Processability

• Improved melt flow
• Stabilized extrusion and injection

6.2 Improved Quality

• Increased surface gloss
• Reduced defects

6.3 Improved Productivity

• Improved mold release → Shorter cycle time
• Reduced energy consumption

6.4 Dispersion Performance

• Uniformity of fillers and pigments
• Stabilization of product quality

7. Points to Note

In practice, the following points should be considered:

• Excessive addition → Potential for blooming (surface exudation)
• Performance variation depending on dispersion state
• Potential to affect heat resistance in some cases

Registration Date: June 16, 2026

Update Date: June 17, 2026