Description

1,3-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 3-Hydroxy-2,2-Dimethylpropyl 3-Hydroxy-2,2-Dimethylpropanoate CAS NO 31070-11-8 is a high-performance, branched polyester polyol designed for demanding industrial applications. This specialized polymer is valued for its ability to impart excellent mechanical properties, chemical resistance, and formulation flexibility. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and performance.

Application

• High-Performance Polyurethane Coatings: Serves as a key polyol component in the formulation of durable industrial, automotive, and protective coatings requiring excellent weatherability and chemical resistance.
• Elastomers and Sealants: Used to produce flexible yet tough polyurethane elastomers and sealants with superior mechanical strength and adhesion properties.
• Adhesives: Imparts strong bonding characteristics and flexibility in structural and specialty adhesive formulations.
• Resin Modification: Acts as a reactive modifier for other polymer systems to improve toughness, crosslink density, and overall performance.
• Composite Materials: Employed in the production of fiber-reinforced composites and casting resins for industrial components.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 3-Hydroxy-2,2-Dimethylpropyl 3-Hydroxy-2,2-Dimethylpropanoate
CAS No.	31070-11-8
Molecular Formula	(C10H10O4·C6H14O3·C10H20O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Isophthalic Acid, Polymer with Trimethylolpropane and Neopentyl Glycol Hydroxypivalate; Polyester Polyol based on Isophthalic Acid, TMP, and NPGHP; Branched Polyester Polyol; TMP-NPGHP-Isophthalic Acid Copolymer; Poly(neopentyl glycol hydroxypivalate-co-trimethylolpropane-co-isophthalate); Hydroxyl-functional Polyester Resin; CAS 31070-11-8
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent hydroxyl value, acid value, viscosity, and color. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C / 59-77°F). Keep away from strong acids, strong oxidizers, and sources of heat or ignition. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cP)	Contact for details
Color (Gardner)	≤ 3
Water Content (%)	≤ 0.1

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