Description

Trimethylolpropanemaleate is a specialized ester compound derived from trimethylolpropane and maleic acid. This chemical serves as a crucial reactive intermediate and crosslinking agent, valued for its ability to introduce unsaturation and functionality into polymer chains. It is primarily utilized by manufacturers in the coatings, resins, and specialty polymer industries seeking to enhance product durability, adhesion, and chemical resistance.

Application

• As a key monomer or co-monomer in the production of unsaturated polyester resins (UPR) for composites and laminates.
• Functioning as a reactive diluent and crosslinker in radiation-curable coatings, inks, and adhesives (e.g., UV/EB curing systems).
• Used in the synthesis of alkyd resins to improve drying time, hardness, and weather resistance.
• Employed as a building block for specialty polymers, including water-soluble or dispersible varieties.
• Serving as an intermediate in the manufacture of plasticizers and other performance additives.
• Potential use in the formulation of industrial and automotive coatings requiring high crosslink density.

Basic Information

Item	Details
Product Name	Trimethylolpropanemaleate
CAS No.	27309-95-1
Molecular Formula	C12H16O7
Molecular Weight	272.25 g/mol
Synonyms	Trimethylolpropane Maleate; TMP Maleate; 2-Ethyl-2-(((2-hydroxyethoxy)carbonyl)methyl)propane-1,3-diyl bis(2-hydroxyacetate) (related ester); 1,1,1-Trimethylolpropane Maleate; 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol Maleate; Maleic Acid Trimethylolpropane Ester; TMPM
EINECS	Contact for details

Quality Control

Our Trimethylolpropanemaleate is produced under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 10.0 mg KOH/g
Water Content (KF)	≤ 0.5%
Color (Gardner)	≤ 3

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.