Description

1,3-Benzenedicarboxylic Acid, Polymer With Benzoic Acid, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, Hexanedioic Acid And 1,5-Pentanediol 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 tailored monomer composition. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty plastics sectors seeking to enhance product durability and performance. The compound is supplied under CAS No. 68856-22-4.

Application

• High-Performance Industrial Coatings: Used as a key resin binder in powder coatings, coil coatings, and can coatings, providing excellent weatherability, corrosion resistance, and surface finish.
• Thermosetting Adhesives and Sealants: Serves as a base polymer for structural adhesives and sealants requiring strong bonding, flexibility, and resistance to environmental stress.
• Engineered Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and composite parts for automotive and aerospace components.
• Electrical Insulation Materials: Utilized in the formulation of insulating varnishes, potting compounds, and encapsulants for electronic components.
• Specialty Plasticizers and Modifiers: Incorporated into polymer blends to modify rheological properties, improve impact strength, or enhance thermal stability.
• Industrial and Protective Finishes: Formulated into primers and topcoats for metal, concrete, and other substrates in harsh industrial environments.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With Benzoic Acid, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol, Hexanedioic Acid And 1,5-Pentanediol
CAS No.	68856-22-4
Molecular Formula	Polymeric Substance (Contact for details)
Molecular Weight	Polymeric Substance (Contact for details)
Synonyms	Poly(1,3-benzenedicarboxylic acid-co-benzoic acid-co-2-ethyl-2-(hydroxymethyl)-1,3-propanediol-co-hexanedioic acid-co-1,5-pentanediol); Isophthalic Acid-Benzoic Acid-TMP-Adipic Acid-Pentanediol Copolymer; Polyester Resin from Isophthalic Acid, Benzoic Acid, Trimethylolpropane, Adipic Acid, and 1,5-Pentanediol; TMP-modified Polyester Resin; Copolymer of Isophthalic Acid, Benzoic Acid, Trimethylolpropane, Adipic Acid, Pentanediol; Thermosetting Polyester Resin (68856-22-4); Alkyd-type Polyester Resin
EINECS	Contact for details

Quality Control

Our production of this specialty polyester resin adheres to rigorous 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 strictly monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment. We support compliance with global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from heat sources and open flame. Under recommended storage conditions, the product is stable for the period indicated on the label. For long-term storage, consider under an inert atmosphere to prevent moisture absorption and oxidation.

Specification

Item	Specification
Appearance	White to off-white granules or solid
Acid Value	5 - 15 mg KOH/g
Hydroxyl Value	30 - 80 mg KOH/g
Viscosity (at 25°C, 60% in solvent)	800 - 2500 mPa·s
Glass Transition Temperature (Tg)	40 - 60 °C
Color (Gardner)	≤ 3
Softening Point	90 - 110 °C
Identification (IR)	Conforms to standard

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