Description

1,3-Isobenzofurandione, Hexahydro-, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,3-Isobenzofurandione is a specialized polymeric resin derived from the co-polymerization of hexahydrophthalic anhydride and a modified trimethylolpropane. This product is valued for its ability to form durable, chemically resistant coatings and matrices, making it a critical intermediate in high-performance industrial applications. It is primarily sought by manufacturers in the coatings, adhesives, and advanced composite materials sectors who require reliable, high-quality polymer precursors.

Application

• Powder Coatings: Acts as a key resin component for producing hard, weatherable, and corrosion-resistant powder coatings for automotive, appliance, and architectural metal substrates.
• Industrial Adhesives & Sealants: Used in formulating high-strength structural adhesives and sealants with excellent chemical and moisture resistance.
• Electrical Insulating Varnishes: Serves as a base resin for insulating varnishes and impregnating resins in motors, transformers, and electrical components.
• Composite Materials: Functions as a matrix resin or curing agent in fiber-reinforced plastics (FRP) and other composite systems for enhanced mechanical properties.
• Can & Coil Coatings: Employed in coatings for food and beverage cans, as well as coil coatings for pre-finished metal sheets, providing excellent adhesion and flexibility.
• Marine & Protective Coatings: Used in heavy-duty anti-corrosive coatings for ships, offshore platforms, and industrial structures exposed to harsh environments.

Basic Information

Item	Details
Product Name	1,3-Isobenzofurandione, Hexahydro-, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,3-Isobenzofurandione
CAS No.	61842-72-6
Molecular Formula	(C8H10O3 · C6H14O3)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Hexahydrophthalic Anhydride - Trimethylolpropane Copolymer; HHPA-TMP Copolymer; Poly(hexahydrophthalic anhydride-co-trimethylolpropane); Polyol-modified hexahydrophthalic anhydride resin; Carboxyl-functional polyester resin; Acid polyester; TMP-HHPA resin; Powder coating resin (acid functional)
EINECS	Contact for details

Quality Control

Our production of this polymeric resin adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, viscosity, glass transition temperature (Tg), and color are rigorously monitored. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment and are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. 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)	30 - 70 (typical)
Viscosity (at 25°C)	Contact for details
Glass Transition Temp (Tg)	Contact for details
Non-Volatile Content (%)	≥ 99.0
Moisture Content (KF)	≤ 0.5%

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