Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid CAS NO 26141-03-7 is a high-performance, complex polyester resin designed for demanding industrial applications. This polymer is engineered to deliver exceptional durability, chemical resistance, and thermal stability, making it a critical component in advanced material formulations. It is primarily utilized by manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product performance and longevity.

Application

• High-Performance Industrial Coatings: Used as a resin binder in powder coatings, coil coatings, and can coatings, providing excellent weatherability, corrosion resistance, and mechanical strength.
• Advanced Adhesives and Sealants: Serves as a key polymeric component in structural adhesives and high-temperature sealants for automotive, aerospace, and construction applications.
• Engineering Plastics and Composites: Incorporated into polymer blends and composite materials to improve heat distortion temperature, dimensional stability, and chemical resistance.
• Electrical Insulation Materials: Utilized in the formulation of wire enamels, insulating varnishes, and encapsulants due to its good dielectric properties and thermal endurance.
• Specialty Inks and Pigment Dispersions: Acts as a grinding resin or additive to improve pigment wetting, dispersion stability, and print quality in industrial ink systems.
• Fiber Reinforced Polymers (FRP): Employed in resin matrices for fiberglass and other composite materials used in marine, transportation, and chemical processing equipment.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid
CAS No.	26141-03-7
Molecular Formula	(C8H6O4 • C9H4O5 • C5H12O2 • C6H10O4)x
Molecular Weight	Polymeric substance (Variable)
Synonyms	Polyester resin from IPA, TMA, NPG, and Adipic Acid; Isophthalic Acid - Trimellitic Anhydride - Neopentyl Glycol - Adipic Acid Copolymer; IPA/TMA/NPG/AA Polyester; Poly(isophthalate-co-trimellitate-co-neopentyl glycol-co-adipate); Neopentyl Glycol Polyester with Isophthalic Acid, Trimellitic Anhydride, and Adipic Acid; NPG/IPA/TMA/Adipate Copolymer; Thermoplastic Polyester Resin; Light-stable Saturated Polyester Resin
EINECS	Contact for details

Quality Control

Our production of this specialty 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 all relevant specifications 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product properties.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Acid Value (mg KOH/g)	5 - 25
Hydroxyl Value (mg KOH/g)	10 - 50
Viscosity (mPa·s, @ 25°C, 40% in solvent)	200 - 2000
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 2
Moisture Content	≤ 0.5 %
Softening Point (Ring & Ball)	90 - 130 °C

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