Description

Propanoic Acid, 3-Hydroxy-2-(Hydroxymethyl)-2-Methyl-, Polymer With Hexahydro-2H-Azepin-2-One And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane CAS NO 103051-67-8 is a specialized polyurethane prepolymer or resin intermediate derived from a reaction involving a hydroxy-functional acid, caprolactam, and isophorone diisocyanate (IPDI). This compound is valued for its ability to impart enhanced chemical resistance, durability, and specific mechanical properties to final polymer formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and marine coatings requiring excellent weatherability, chemical resistance, and adhesion.
• Specialty Adhesives & Sealants: Serves as a building block for polyurethane-based adhesives and sealants that demand flexibility, strength, and environmental stability.
• Elastomer Production: Employed in the synthesis of castable or thermoplastic polyurethane elastomers for gaskets, rollers, and industrial parts.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites for the aerospace, automotive, and wind energy sectors.
• Industrial Fabric Coatings: Used to create durable, protective coatings on textiles and technical fabrics.
• Encapsulation & Potting Compounds: Formulated into systems for protecting sensitive electronic components from moisture and mechanical stress.

Basic Information

Product Name	Propanoic Acid, 3-Hydroxy-2-(Hydroxymethyl)-2-Methyl-, Polymer With Hexahydro-2H-Azepin-2-One And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane
CAS No.	103051-67-8
Molecular Formula	Polymeric substance; Contact for details
Molecular Weight	Polymeric substance; Contact for details
Synonyms	Polyurethane prepolymer based on IPDI and caprolactam; IPDI-caprolactam copolymer with dimethylolpropionic acid derivative; Isophorone diisocyanate caprolactam adduct polymer; Polyurethane resin intermediate CAS 103051-67-8; DMPA-IPDI-caprolactam polymer; Hydroxy-functional polyurethane prepolymer; Aliphatic polyurethane prepolymer; PU prepolymer
EINECS	Contact for details

Quality Control

Our production of this advanced polymer intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency for critical formulation parameters. Quality is verified through testing of key parameters such as NCO content, hydroxyl value, viscosity, and color. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction. Isolate from sources of heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	Contact for details
Solid Content	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture (Karl Fischer)	≤ 0.1%

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