Description

1, 4-Benzenedicarboxylic Acid, Polymer With (E)-2-Butenedioic Acid, 1, 2-Ethanediol And 1, 2-Propanediol is a high-performance, unsaturated polyester resin intermediate. This compound is engineered to deliver exceptional reactivity and cross-linking properties, which are critical for formulating durable and resilient polymer matrices. It is primarily sought after by manufacturers in the coatings, adhesives, composites, and specialty plastics industries for applications requiring high chemical resistance and structural integrity.

Application

• Unsaturated Polyester Resins (UPR): A key intermediate for the production of high-strength, corrosion-resistant UPRs used in fiberglass-reinforced plastics (FRP).
• Industrial Coatings & Gel Coats: Provides excellent surface finish, weatherability, and chemical resistance in protective coatings for marine, automotive, and construction applications.
• Adhesives & Sealants: Used in formulations requiring strong bonding, flexibility, and durability under harsh environmental conditions.
• Composite Materials: Serves as a matrix resin for manufacturing composite parts in the aerospace, transportation, and wind energy sectors.
• Electrical Laminates: Employed in the production of printed circuit boards (PCBs) and electrical insulation components.
• Molding Compounds: Used in bulk molding compound (BMC) and sheet molding compound (SMC) for high-volume, high-performance molded parts.

Basic Information

Product Name	1, 4-Benzenedicarboxylic Acid, Polymer With (E)-2-Butenedioic Acid, 1, 2-Ethanediol And 1, 2-Propanediol
CAS No.	54115-25-2
Molecular Formula	(C8H6O4·C4H4O4·C2H6O2·C3H8O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(ethylene/propylene glycol maleate phthalate); Terephthalic Acid-Fumaric Acid-Ethylene Glycol-Propylene Glycol Copolymer; Unsaturated Polyester Prepolymer based on TPA, FA, EG, and PG; Poly(ethylene glycol-co-propylene glycol maleate phthalate); Polyester Resin Intermediate, TPA/FA type; 1,4-Benzenedicarboxylic acid, polymer with (E)-2-butenedioic acid, 1,2-ethanediol and 1,2-propanediol; Terephthalic acid-fumaric acid-ethylene glycol-propylene glycol polymer
EINECS	Contact for details

Quality Control

Our production of this polymer intermediate adheres to strict quality management systems. Each batch is characterized for critical parameters including acid value, viscosity, and reactivity to ensure consistent performance in downstream resin synthesis. Certificates of Analysis (COA) detailing batch-specific properties are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizers and bases. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid to solid mass
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	15 - 35
Viscosity @ 25°C (cPs)	2000 - 8000
Non-Volatile Content (%)	≥ 65
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.