Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, Dihydro-2,5-Furandione And 2,2-Dimethyl-1,3-Propanediol is a high-performance, multi-component polyester resin designed for demanding industrial applications. This specialized polymer offers a unique balance of thermal stability, chemical resistance, and mechanical properties derived from its complex monomer composition. It is primarily utilized by manufacturers in the coatings, adhesives, and advanced materials sectors seeking to enhance product durability and performance. The compound, identified by CAS No. 70776-92-0, represents a key building block for sophisticated polymeric systems.

Application

• High-Performance Industrial Coatings: Used as a resin base for powder coatings, coil coatings, and can coatings requiring excellent weatherability, corrosion resistance, and gloss retention.
• Specialty Adhesives and Sealants: Serves as a key polymeric component in formulations demanding strong adhesion, flexibility, and resistance to environmental stress.
• Engineered Plastic Modifiers: Acts as an additive or compatibilizer to improve the impact strength, thermal properties, and processability of engineering thermoplastics.
• Electrical Insulating Varnishes: Employed in the formulation of wire enamels and insulating materials due to its good dielectric properties and thermal class rating.
• Automotive and Aerospace Composites: Used in resin systems for composite parts where a combination of low weight, high strength, and chemical resistance is critical.
• Printing Inks: Functions as a resin for high-quality, durable inks used in packaging and publications.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, Dihydro-2,5-Furandione And 2,2-Dimethyl-1,3-Propanediol
CAS No.	70776-92-0
Molecular Formula	(C8H6O4·C9H4O5·C4H2O3·C5H12O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(terephthalic acid-co-trimellitic anhydride-co-maleic anhydride-co-neopentyl glycol); Terephthalic Acid/Trimellitic Anhydride/Maleic Anhydride/Neopentyl Glycol Copolymer; Polyester resin from TPA, TMA, MA, and NPG; TPA/TMA/MA/NPG Copolymer; Neopentyl Glycol Polyester with Terephthalic, Trimellitic, and Maleic Anhydrides; Glyptal-type resin 70776-92-0; Copolyester of Terephthalic Acid, Trimellitic Anhydride, Maleic Anhydride, and Neopentyl Glycol
EINECS	Contact for details

Quality Control

Our production of this advanced polyester resin adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with each shipment. We support compliance with relevant global regulatory frameworks, including REACH, to facilitate international supply.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizing agents. Under these conditions, the product is stable for extended periods. For long-term storage, consider using an inert atmosphere to maintain optimal properties.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Acid Value (mg KOH/g)	5 - 25
Hydroxyl Value (mg KOH/g)	10 - 50
Viscosity (mPa·s @ specified temp & conc.)	As per grade
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 3
Moisture Content	≤ 0.5 %
Identification (IR)	Conforms to structure

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