Description

1,3-Benzenedicarboxylic Acid,Polymer With 1,2-Ethanediol,2,5-Furandione And 1,2-Propanediol is a specialized polymeric resin synthesized from isophthalic acid, maleic anhydride, and glycols. This engineered polymer is valued for its unique combination of chemical resistance and tailored reactivity, making it a critical intermediate for high-performance materials. It is primarily sought by manufacturers in the coatings, adhesives, and advanced composite industries seeking to enhance product durability and functionality.

Application

• Unsaturated Polyester Resins (UPR): A key raw material for formulating high-strength, corrosion-resistant UPRs used in fiberglass-reinforced plastics (FRP) for marine, automotive, and construction applications.
• Industrial Coatings & Inks: Serves as a binder and cross-linking agent in premium industrial coatings, providing excellent adhesion, chemical resistance, and weatherability for metal and concrete substrates.
• Adhesives & Sealants: Used to formulate structural adhesives and high-performance sealants with enhanced flexibility, thermal stability, and bond strength.
• Composite Materials: Acts as a matrix resin in the production of advanced composites for the aerospace, wind energy, and electrical industries.
• Gel Coats & Surface Finishes: Imparts a smooth, durable, and glossy finish to composite parts, protecting against environmental degradation and UV exposure.
• Chemical Intermediates: Utilized for further chemical modifications to create custom polyols, alkyds, or other specialty polymers.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid,Polymer With 1,2-Ethanediol,2,5-Furandione And 1,2-Propanediol
CAS No.	30946-90-8
Molecular Formula	(C8H6O4·C2H6O2·C4H2O3·C3H8O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Isophthalic Acid - Maleic Anhydride - Glycol Copolymer; Poly(isophthalic acid-co-maleic anhydride-co-ethylene glycol-co-propylene glycol); Unsaturated Polyester Prepolymer; UPR Intermediate; Maleic-Anhydride-Modified Isophthalic Polyester Resin; Isophthalic Polyester Polyol; Resin 30946-90-8
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, viscosity, and hydroxyl value are rigorously monitored. A Certificate of Analysis (COA) detailing specific test results is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive and easily oxidized; prolonged exposure to air and light should be avoided to maintain stability. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	15 - 35
Viscosity (at 25°C, cP)	2000 - 8000
Hydroxyl Value (mg KOH/g)	Contact for details
Solid Content (%)	65 - 70
Gel Time (min)	Contact for details

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