Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2-(Hydroxymethyl)-2-Methyl-1,3-Propanediol is a high-performance, branched polyester polyol resin designed for demanding industrial applications. This specialized polymer offers a unique balance of chemical resistance, thermal stability, and mechanical properties, making it a critical raw material for advanced coating and adhesive formulations. It is primarily utilized by manufacturers in the coatings, inks, and specialty plastics industries seeking to enhance product durability and performance.

Application

• High-Performance Coatings: A key resin component in automotive, industrial, and coil coatings requiring excellent weatherability, chemical resistance, and hardness.
• Polyurethane Adhesives & Sealants: Serves as a polyol component to formulate strong, flexible adhesives for construction, automotive assembly, and composite bonding.
• Ink Resins: Used in the production of high-quality printing inks, particularly for packaging and publications, providing good gloss and adhesion.
• Specialty Elastomers: Imparts desirable mechanical properties in the synthesis of polyurethane and polyester-based elastomers.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems.
• Electrical Insulation: Suitable for formulating insulating varnishes and potting compounds due to its thermal and electrical properties.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2-(Hydroxymethyl)-2-Methyl-1,3-Propanediol
CAS No.	137237-04-8
Molecular Formula	(C8H6O4 · C8H6O4 · C5H12O2 · C5H12O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(isophthalate-co-terephthalate) of neopentyl glycol and trimethylolpropane; Polyester polyol from IPA, TPA, NPG, and TMP; NPG/TMP Polyester Polyol; Isophthalic-Terephthalic Acid Copolyester with NPG and TMP; Branched Copolyester Polyol; CAS 137237-04-8; Poly(neopentyl glycol isophthalate-co-terephthalate) modified with trimethylolpropane
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and color are rigorously tested. Certificates of Analysis (COA) documenting all relevant specifications are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep away from strong heat, open flames, and incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (mPa·s)	Contact for details
Color (Gardner)	≤ 2
Water Content (%)	≤ 0.1
Identification (IR)	Conforms

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