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β-Hydroxyalkyl amide (HAA) is a non-toxic, tetrafunctional curing agent used for carboxyl-functional polyester resins in powder coatings. It serves as a superior, eco-friendly alternative to triglycidyl isocyanurate (TGIC) for outdoor applications, offering excellent durability, weather resistance, and high-density cross-linking. HAA cures via esterification, releasing only water, which prevents yellowing and provides smooth finishes.
Key Characteristics and Benefits
- Environmentally Friendly: HAA is considered non-toxic and is widely used as a "TGIC-free" hardener due to regulatory restrictions on TGIC.
- Performance: Provides excellent mechanical properties, such as high impact resistance and flexibility.
- Appearance: Typically a white crystalline solid, enabling high-quality coatings.
- Mechanism: Reacts with carboxyl-terminated resins at high temperatures (curing temperatures), creating ester linkages.
Applications
- Powder Coatings: Excellent for weather-resistant outdoor coatings, including aluminum profiles and agricultural machinery.
- Automotive and Industrial: Ideal for applications requiring superior corrosion and chemical resistance.
- Thin/Thick Films: Effective in both thin and thick film applications.
Technical Data and Usage
- Melting Point: Typically between 120-130°C.
- Hydroxyl Equivalent: Roughly .
- Storage: Should be stored in a cool, dry, ventilated area, as the product is sensitive to moisture absorption.
Commonly known under commercial names like TGC-Free Hardener React PCH-201, HAA is a mature technology.
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Hydroxyl Alkyl Amide (HAA) | Akash ...
Akash Coating Speciality
https://akashcoating.com › haa
Akash Coating Speciality
https://akashcoating.com › haa
Pure polyester curing agent composited of β-hydroxyalkyl amides. It is the excellent curing agent of the pure polyester weather resistance powder coating, ...Read more
OEM/ODM High Performance HAA Curing Agent
China AAB Industry Technology Group
https://www.aabindustrygroup.com › high-performance-...
China AAB Industry Technology Group
https://www.aabindustrygroup.com › high-performance-...
Kabasph® T105 is an environment friendly curing agent, also called β-Hydroxyalkyl amide (HAA Curing Agent) used in the production of outdoor polyester ...Read more
EP1923436B1 - Powder compositions comprising Beta- ...
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
According to the present invention, coating or film forming powder compositions comprise one or more β-hydroxyalkyl amide curing agent comprising the reaction ...Read more
HAA Curing Agent - Sevo
svcoating.com
https://www.svcoating.com › Curing Agent
svcoating.com
https://www.svcoating.com › Curing Agent
HAA (Hydroxyalkyl amides) is an alkylamine curing agent with hydroxyl functional groups that can be crosslinked with carboxyl-functional polyesters.Read more
Paint Raw Material|Additives for Coatings _ β-Hydroxyalkyl
chemknock.com
https://chemknock.com › view
chemknock.com
https://chemknock.com › view
Additives for Coatings _ β-Hydroxyalkyl amide (HAA Curing Agent) ; Model name, β-Hydroxyalkyl amide (HAA Curing Agent) ; Usage, Curing hardener for exterior use.Read more
Beta-hydroxyalkylamide
ChemBK
https://www.chembk.com › chem › Beta-hydroxyalkyla...
ChemBK
https://www.chembk.com › chem › Beta-hydroxyalkyla...
Name:Beta-hydroxyalkylamide,CAS:.Use:Mainly used for pure polyester (outdoor) powder coating curing agent, the advantage of TGIC is non-toxic.
Hydroxyalkyl amide High Flexibility Epoxy Curing Agent ...
Echemi
https://www.echemi.com › produce › pr2303181383-e...
Echemi
https://www.echemi.com › produce › pr2303181383-e...
Curing agent pure polyester powder coating β- Hydroxyalkyl amide High Flexibility Epoxy Curing Agent epoxy hardener chemical auxiliary agent. 2 Inquiries. Cas ...Read more
Hydroxyalkyl amide curing agent composition and ...
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
The present invention relates to chemical field, specifically a kind of hydroxyalkyl amide curing agent composition and the purposes in powder coating thereof.Read more
Beta-hydroxyalkyl amide synthesis process
PatSnap Eureka
https://eureka.patsnap.com › ...
PatSnap Eureka
https://eureka.patsnap.com › ...
With the strengthening of occupational health awareness, β-hydroxyalkylamide curing agent has gradually replaced TGIC to become the largest type of curing agent ...Read more
Hardner P Coating HAA | PDF | Polyester | Paint
Scribd
https://www.scribd.com › document › Hardner-P-Coati...
Scribd
https://www.scribd.com › document › Hardner-P-Coati...
The document details European Patent EP 1 208 175 B1, which describes mixtures of beta-hydroxyalkyl amides used as cross-linking agents in powder paints.Read more
Scholarly articles for β Hydroxyalkyl amide curing agent | |
… β-hydroxy alkyl amides as crosslinkers for UV curable … - Palanisamy - Cited by 34 Curing agents and modifiers - Mika - Cited by 29 … coatings based on carboxylated polyester and β- … - Roman - Cited by 15 | |