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CHDA HP
CHDA HP is a high-purity CHDA (1,4-cyclohexanedicarboxylic acid) powder used as a chemical intermediate for producing polyester resins with excellent thermal stability, lower resin color, and good humidity resistance.
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- Manufacturer: Eastman
- Product Line: Eastman Resin Intermediates
- Product: CHDA (Cyclohexanedicarboxylic acid)
- Industries: Adhesives | Coatings
- Authorized Countries: Canada | United States
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Overview
Eastman CHDA HP is a cycloaliphatic diacid that offers many benefits to polyester resins used in industrial applications. The symmetrical, substituted cycloaliphatic ring structure in CHDA brings useful properties such as improved corrosion and chemical resistance, high thermal stability, low resin color, excellent weathering, and good hydrolytic stability. This leads to improved performance in a variety of waterborne, high-solids, powder, gel, and coil coating applications used in the automotive, transportation, equipment manufacturing, and aerospace industries. CHDA may also be used to create polyester resins for fiberglass reinforced plastics.
CHDA HP is approved in the United States and Europe for use in polyester resins for food contact coatings. It is a mixture of cis and trans isomers and is supplied as white to off-white powder in various package sizes.
Specifications
Appearance: White to off-white powder
Viscosity at 25°C (cPs): 6.9
Flash point (°C, °F): 235, 455
Melting point (°C, °F): 164–167, 327–333
Specific gravity at 20°C/20°C: 1.38
Solubility in water at 20°C (wt%): 1
CAS: 1076-97-7
Molecular weight: 172.2
Empirical formula: C8H12O4
Features & Benefits
Rapid esterification
Low resin color
Great thermal stability
Imparts excellent hardness and flexibility
High solubility in molten glycols
Improved corrosion and stain resistance
Excellent hydrolytic stability
Great gloss retention and prevents yellowing
Reduced occurrence of orange peel in powder coatings
Problems Solved
Slow resin processing in molten glycol due to poor solubility
Inferior weathering stability or inconsistent color in finished resin
Inadequate coating hardness and flexibility balance
Applications
Automotive coatings
Building materials
Coil coatings
Metal coatings
Paints and coatings
Protective coatings
Specialty chemicals
Pharmaceuticals
Related Applications
Related Chemistries
Related Functions
Related Technologies
Adhesives
Coatings
Eastman Resin Intermediates Articles
Eastman™ Resin Intermediates - Powder Coating
More than half of powder coating processes utilize a polyester resin in the binder system. Eastman™ provides high-quality polyester resin intermediates that deliver cost effective production and targeted surface finish performance. Browse their solutions portfolio and learn how and why to select their resin intermediate products.
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