Description

1,3-Isobenzofurandione Polymer With 2,2-Dimethyl-1,3-Propanediol is a high-performance polymeric material derived from the reaction of phthalic anhydride and neopentyl glycol. This compound is valued for its excellent chemical resistance, thermal stability, and ability to form durable, protective coatings. It is primarily sought by manufacturers in the coatings, resins, and specialty polymer industries for applications requiring robust performance under demanding conditions. The product is supplied with a CAS Registry Number of 54909-13-6.

Application

• High-Performance Industrial Coatings: Used as a key resin component in powder coatings and coil coatings for appliances, automotive parts, and architectural aluminum, providing excellent weatherability and corrosion resistance.
• Saturated Polyester Resins: Serves as a fundamental building block for saturated polyester resins, which are used in can and container coatings, offering good adhesion and flexibility.
• Electrical Insulation: Employed in the formulation of insulating varnishes and enamels for wires and electrical components due to its good dielectric properties and thermal endurance.
• Adhesives and Sealants: Acts as a modifier or base resin in high-strength structural adhesives and sealants, enhancing durability and chemical resistance.
• Plastic Additives: Utilized as a plasticizer or compatibilizer in specific polymer blends to improve processing characteristics and final product performance.

Basic Information

Product Name	1,3-Isobenzofurandione Polymer With 2,2-Dimethyl-1,3-Propanediol
CAS No.	54909-13-6
Molecular Formula	(C8H4O3·C5H12O2)n
Molecular Weight	Polymeric substance (varies by degree of polymerization)
Synonyms	Neopentyl Glycol Phthalate Polymer; Poly(neopentyl glycol phthalate); Phthalic Anhydride-Neopentyl Glycol Copolymer; NPG Phthalate Resin; Polyester Resin from Phthalic Anhydride and Neopentyl Glycol; 2,2-Dimethyl-1,3-propanediol phthalate polymer; Phthalic acid polymer with 2,2-dimethyl-1,3-propanediol
EINECS	Contact for details

Quality Control

Our production of 1,3-Isobenzofurandione Polymer With 2,2-Dimethyl-1,3-Propanediol adheres to stringent quality management protocols. Each batch is characterized for critical parameters including acid value, hydroxyl value, viscosity, and glass transition temperature (Tg) to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are available for every shipment, providing full traceability and compliance with relevant industry standards.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product properties.

Specification

Item	Specification
Appearance	White to off-white flakes or powder
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at specified concentration & temp)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
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.