Hangzhou Leap Chem Co., Ltd. is one of the most professional manufacturers and suppliers of trimethylol propane丨cas 77-99-6 in China. Welcome to wholesale bulk high quality chemical products at competitive price from our factory. If you have any enquiry about custom service, please feel free to email us.
Specifications
| Appearance | White flake solid |
| Trimethylolpropane | 99% min |
| Hydroxyl | 37.5% min |
| Moisture | 0.05% max |
| Acid value | 0.002% max |
| Color | 20 max |
| Crystallization point | 59°C min |
Applications
1. Polyester and Alkyd Resins
Used as a building block in the synthesis of polyester resins and alkyd resins, which are used in coatings, paints, and adhesives.
Improves flexibility, hardness, and chemical resistance of resins.
2. Polyurethane Industry
Acts as a polyol in the production of polyurethane foams, elastomers, and coatings.
Provides enhanced mechanical properties due to its trifunctional nature.
3. Epoxy Resins
Used in the manufacture of epoxy diluents and modifiers, improving toughness and adhesion.
4. Plasticizers
Employed as a raw material to produce plasticizers that improve the flexibility of plastics.
5. Lubricants and Surfactants
Used as a precursor for specialty lubricants, emulsifiers, and surfactants.
Benefits
Multifunctional Reactivity: Three hydroxyl groups allow extensive cross-linking for robust polymers.
Enhances Mechanical Properties: Increases strength, flexibility, and chemical resistance in polymers.
Versatile Intermediate: Applicable in multiple industries including coatings, plastics, and adhesives.
Good Compatibility: Mixes well with various monomers and solvents.
Stable and Safe: Chemically stable and generally safe to handle with standard precautions.
Conclusion
Trimethylolpropane (TMP, CAS 77-99-6) is a trifunctional alcohol widely used as a building block in polyester and polyurethane resins, epoxy modifiers, plasticizers, and lubricants. Its three hydroxyl groups allow for extensive chemical versatility, making it essential in the production of high-performance polymers and specialty chemicals.

