Description

Propyleneglycol, Polymer With Terephthalic Acid, Maleic Anhydride And Ethyleneglycol is a specialized unsaturated polyester resin intermediate, synthesized from key monomers to create a versatile polymer backbone. This compound is engineered to provide excellent reactivity and cross-linking potential, which is critical for formulating high-performance thermoset plastics and coatings. It is essential for manufacturers in the composites, industrial resin, and specialty chemical sectors seeking to produce durable, chemically resistant end-products.

Application

• Primary resin component for the production of unsaturated polyester resins (UPR) used in fiberglass-reinforced plastics.
• Key intermediate in the formulation of gel coats and laminating resins for marine, automotive, and construction applications.
• Base polymer for corrosion-resistant tank and pipe linings in chemical processing industries.
• Raw material for manufacturing sheet molding compound (SMC) and bulk molding compound (BMC).
• Used in the synthesis of specialty alkyd resins and coating systems requiring enhanced durability.
• Intermediate for electrical insulation components and encapsulants.

Basic Information

Product Name	Propyleneglycol, Polymer With Terephthalic Acid, Maleic Anhydride And Ethyleneglycol
CAS No.	30790-78-4
Molecular Formula	(C3H8O2.C8H6O4.C4H2O3.C2H6O2)x
Molecular Weight	Polymer - Variable
Synonyms	Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyloxy-1,2-ethanediyloxycarbonyl-2-butenedioyloxy-1,2-propanediyl); Propylene Glycol, Ethylene Glycol, Terephthalic Acid, Maleic Anhydride Copolymer; Unsaturated Polyester Prepolymer; Poly(propylene glycol-co-ethylene glycol-co-terephthalic acid-co-maleic anhydride); UPR Intermediate; Polyester Resin Intermediate; Maleic Anhydride-Propylene Glycol-Ethylene Glycol-Terephthalic Acid Copolymer
EINECS	Contact for details

Quality Control

Our production of this polymer intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as acid value, viscosity, and reactivity are rigorously monitored. Certificates of Analysis (COA) documenting these specifications are available for every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and premature reaction.

Specification

Item	Specification
Appearance	Viscous liquid to solid mass
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	20 - 35
Viscosity @ 25°C (cPs)	2000 - 6000
Non-Volatile Matter (%)	≥ 65
Gel Time @ 25°C (min)	Contact for details
Identification (IR)	Conforms

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