Description

Hexanedioic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,6-hexanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 1,1'-methylenebis[4-isocyanatocyclohexane] is a high-performance, aliphatic polyester-polyurethane copolymer designed for demanding applications. This specialized polymer offers an exceptional balance of durability, chemical resistance, and weatherability, making it a critical raw material for advanced coatings and elastomers. It is primarily sought by formulators in the automotive, industrial coating, and specialty adhesive sectors who require products with superior yellowing resistance and long-term performance under harsh environmental conditions.

Application

• High-Performance Coatings: As a key resin in automotive clear coats, industrial maintenance paints, and coil coatings requiring excellent gloss retention and UV stability.
• Elastomers and Sealants: For manufacturing flexible, abrasion-resistant components, gaskets, and sealants in automotive and construction applications.
• Specialty Adhesives: Formulation of high-strength, weather-resistant structural and laminating adhesives.
• Plastic Modifiers: Used as an impact modifier or compatibilizer to enhance the toughness and weatherability of engineering plastics.
• Textile and Leather Finishes: Provides durable, flexible, and water-resistant coatings for technical textiles and synthetic leather.
• Optical Lens Coatings: Serves as a scratch-resistant and anti-fog coating resin for polycarbonate and other optical substrates.

Basic Information

Product Name	Hexanedioic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,6-hexanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 1,1'-methylenebis[4-isocyanatocyclohexane]
CAS No.	71394-21-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Aliphatic Polyester Polyurethane Resin; Poly(neopentyl glycol-adipate) terminated with dimethylolpropionic acid, crosslinked with H12MDI; H12MDI-based Aliphatic Polyurethane; Weatherable Polyurethane Polymer; Adipic Acid/Neopentyl Glycol/1,6-Hexanediol/DMPA Copolymer, H12MDI-crosslinked; Light-stable Polyurethane Prepolymer; Aliphatic PU Resin for Coatings
EINECS	Contact for details

Quality Control

Our production of this aliphatic polyurethane polymer adheres to strict batch-to-batch consistency protocols, ensuring reliable performance in critical formulations. Quality is verified through comprehensive analytical testing, including measurement of NCO content, viscosity, solids content, and color (Gardner scale). Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment to guarantee compliance with your technical requirements.

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 product is moisture-sensitive (hygroscopic); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
NCO Content	Contact for details
Solid Content	Contact for details
Viscosity (25°C)	Contact for details
Color (Gardner)	≤ 2
Acid Value	Contact for details
Hydroxyl Value	Contact for details

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