Description

Propyleneglycol, Polymer With Terephthalic Acid, Fumaric Acid And 2,2-Dimethyl-1,3-Propanediol is a specialized unsaturated polyester resin intermediate, known for its tailored molecular architecture that imparts excellent chemical resistance and mechanical properties. This compound matters for formulators seeking to create high-performance, durable coatings, adhesives, and composite materials. It is primarily needed by manufacturers in the industrial coatings, automotive, and construction sectors, where robust, weather-resistant finishes are critical.

Application

• As a key resin component in high-solids and solvent-borne industrial protective coatings for metal substrates.
• In the formulation of gel coats and laminating resins for fiber-reinforced plastic (FRP) composites used in marine and automotive parts.
• For manufacturing corrosion-resistant tank and pipe linings in chemical processing plants.
• As a binder in specialty adhesives and sealants requiring strong acid and solvent resistance.
• In the production of electrical insulation varnishes and encapsulants.
• As a raw material for powder coating resins, contributing to weatherability and finish durability.

Basic Information

Product Name	Propyleneglycol, Polymer With Terephthalic Acid, Fumaric Acid And 2,2-Dimethyl-1,3-Propanediol
CAS No.	59809-48-2
Molecular Formula	(C3H8O2.C8H6O4.C4H4O4.C5H12O2)x
Molecular Weight	Varies (Polymer)
Synonyms	Unsaturated Polyester Resin based on Propylene Glycol, Terephthalic Acid, Fumaric Acid, and Neopentyl Glycol; Poly(propylene glycol-co-terephthalic acid-co-fumaric acid-co-neopentyl glycol); NPG-modified Unsaturated Polyester; UPR Intermediate; Polyester Polyol; Terephthalic-Fumaric Copolyester; Neopentyl Glycol Polyester Resin
EINECS	Contact for details

Quality Control

Our production of this polymer intermediate adheres to stringent quality management systems. Each batch is characterized for critical parameters including acid value, hydroxyl value, viscosity, and color to ensure batch-to-batch consistency for your formulations. Certificates of Analysis (COA) detailing these specifications are provided and available upon request.

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, sparks, and open flame. As a material containing unsaturated bonds, prolonged storage at elevated temperatures should be avoided to prevent premature gelation. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale solid
Acid Value (mg KOH/g)	5 - 25
Hydroxyl Value (mg KOH/g)	30 - 100
Viscosity @ 25°C (cPs)	500 - 5000
Color (Gardner)	≤ 3
Solid Content (%)	60 - 70 (in Styrene) or 100%
Gel Time @ 25°C (min)	Contact for details

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