Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol is a high-performance, branched polyester polyol resin. This specialized polymer is engineered to deliver exceptional durability, chemical resistance, and formulation flexibility in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty plastics sectors seeking to enhance product performance and longevity.

Application

• High-Performance Coatings: A key resin component in automotive, industrial, and marine coatings requiring excellent weatherability, gloss retention, and corrosion resistance.
• Polyurethane Adhesives & Sealants: Used as a polyol to formulate strong, flexible adhesives for construction, automotive assembly, and composite bonding.
• Specialty Elastomers: Serves as a building block for polyurethane elastomers used in wheels, rollers, and impact-resistant parts.
• Industrial & Protective Linings: Formulated into chemical-resistant linings and tank coatings for storage vessels and processing equipment.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems.
• Flexible Packaging Inks & Overprint Varnishes: Provides adhesion and scuff resistance in printing applications for films and foils.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	53808-41-6
Molecular Formula	(C8H6O4 · C8H6O4 · C5H12O2 · C6H14O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(isophthalate-co-terephthalate-co-2,2-dimethyl-1,3-propanediol-co-2-ethyl-2-(hydroxymethyl)-1,3-propanediol); Trimethylolpropane/Neopentyl Glycol/Isophthalic Acid/Terephthalic Acid Copolymer; TMP/NPG/IA/TA Copolyester Polyol; Branched Copolyester Polyol; Polyol Resin 53808-41-6; Isophthalic-Terephthalic Acid Copolymer with TMP and NPG
EINECS	Contact for details

Quality Control

Our production of this copolyester polyol adheres to strict quality management systems 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 full 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, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. This product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption which can affect product performance.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	150 - 250
Acid Value (mg KOH/g)	≤ 5.0
Viscosity @ 25°C (cPs)	2,000 - 15,000
Water Content (%)	≤ 0.1
Glass Transition Temp (Tg)	Contact for details
Solubility	Soluble in common organic solvents

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