Description

Hexanedioic Acid, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol, 2,2-Dimethyl-1,3-Propanediol, 1,3-Isobenzofurandione And 2-Propenoic Acid CAS NO 70235-32-4 is a specialized, high-performance polyester resin designed for demanding industrial applications. This polymer's unique composition, incorporating adipic acid, neopentyl glycol derivatives, phthalic anhydride, and acrylic acid, provides an exceptional balance of durability, chemical resistance, and versatility. It is a critical raw material for formulators and manufacturers seeking to enhance the performance characteristics of their final products. Key industries that rely on this advanced polymer include coatings, adhesives, and specialty plastics.

Application

• High-Performance Industrial Coatings: Used as a key resin in formulations for coil coatings, automotive primers, and appliance finishes, offering excellent weatherability and chemical resistance.
• Thermosetting Powder Coatings: Serves as a primary binder, providing excellent flow, leveling, and mechanical properties for decorative and protective finishes on metal substrates.
• Adhesives and Sealants: Imparts strong adhesion, flexibility, and environmental stability to structural and assembly adhesives.
• Specialty Inks and Overprint Varnishes: Used in formulations requiring high gloss, abrasion resistance, and fast curing properties.
• Fiber Reinforced Plastics (FRP): Acts as a matrix resin in composite materials for automotive and construction applications.
• Electrical Insulating Varnishes: Provides thermal stability and dielectric strength for coating wires and electronic components.

Basic Information

Item	Detail
Product Name	Hexanedioic Acid, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol, 2,2-Dimethyl-1,3-Propanediol, 1,3-Isobenzofurandione And 2-Propenoic Acid
CAS No.	70235-32-4
Molecular Formula	(C6H10O4 · C5H12O2 · C5H12O2 · C8H4O3 · C3H4O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Polyester resin from adipic acid, neopentyl glycol, trimethylolpropane, phthalic anhydride, and acrylic acid; Adipic acid/neopentyl glycol/trimethylolpropane/phthalic anhydride/acrylic acid copolymer; Acrylated polyester resin; Unsaturated polyester resin (UPR) modification; NPG/TMP/Adipic Acid/Phthalic Anhydride/Acrylic Acid Copolymer; Thermosetting acrylic polyester resin
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. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We support compliance with relevant 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 (15-25°C). Keep away from heat, sparks, and open flame. Due to its polymeric nature and potential sensitivity, store away from strong acids and oxidizing agents. Keep container tightly sealed when not in use to prevent moisture absorption and skin formation.

Specification

Item	Specification
Appearance	Clear, viscous liquid to solid resin
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	5 - 15
Hydroxyl Value (mg KOH/g)	30 - 80
Viscosity (at 25°C, mPa·s)	2000 - 8000
Glass Transition Temperature (Tg)	40 - 60 °C
Solid Content (%)	≥ 98

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