Description

1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 1,2-ethanediol, 4,4'-methylenebis[benzenamine] and 1,2,3-propanetriol is a high-performance, multi-component polymeric resin designed for advanced material applications. This specialized polymer offers a unique combination of thermal stability, mechanical strength, and chemical resistance derived from its complex aromatic and ester-based structure. It is a critical raw material for manufacturers in the coatings, adhesives, and engineering plastics industries seeking to enhance product durability and performance under demanding conditions.

Application

• High-Temperature Coatings: Used as a binder in industrial and protective coatings requiring excellent thermal stability and corrosion resistance.
• Advanced Adhesives & Sealants: Serves as a key resin component in structural adhesives for automotive, aerospace, and construction applications.
• Engineering Thermoplastics: Incorporated into polymer blends and composites to improve mechanical properties, dimensional stability, and heat deflection temperature.
• Electrical Insulation Materials: Utilized in the formulation of wire enamels, potting compounds, and insulating varnishes due to its good dielectric properties.
• Specialty Inks and Toners: Acts as a functional polymer in high-performance printing inks and electrophotographic toners.
• Fiber-Reinforced Composites: Employed as a matrix resin in composite materials for lightweight, high-strength components.

Basic Information

Product Name	1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 1,2-ethanediol, 4,4'-methylenebis[benzenamine] and 1,2,3-propanetriol
CAS No.	31216-20-3
Molecular Formula	(C10H10O4·C9H4O5·C2H6O2·C13H14N2·C3H8O3)x
Molecular Weight	Polymeric substance (variable)
Synonyms	Poly(ethylene terephthalate-co-trimellitate-co-glycerol) with MDA hardener; PET/TMA/GLY copolymer with methylenedianiline; Terephthalic acid dimethyl ester - trimellitic anhydride - ethylene glycol - methylenebis(aniline) - glycerol polymer; Aromatic polyester-polyol resin; Thermosetting polyesteramide; Multifunctional polymeric resin CAS 31216-20-3
EINECS	Contact for details

Quality Control

Our production of this high-performance polymer adheres to strict quality management systems, ensuring batch-to-batch consistency for critical applications. Quality is verified through a comprehensive suite of analytical tests including gel permeation chromatography (GPC) for molecular weight distribution, thermal analysis (DSC/TGA), and functional group analysis (FTIR). A detailed Certificate of Analysis (COA) documenting key parameters such as acid value, hydroxyl value, viscosity, and glass transition temperature is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizing agents. The product may be hygroscopic; ensure containers are sealed after each use to prevent moisture absorption which can affect performance.

Specification

Item	Specification
Appearance	Pale yellow to amber solid or flakes
Identification (IR)	Conforms to structure
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	50 - 150 mg KOH/g
Viscosity (at 25°C, 40% in NMP)	500 - 3000 mPa·s
Glass Transition Temperature (Tg)	40 - 80 °C
Softening Point (Ring & Ball)	90 - 130 °C
Moisture Content (Karl Fischer)	≤ 0.5 %

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