Description

1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] is a high-performance, cross-linked polyurethane resin designed for demanding industrial applications. This specialized polymer offers an exceptional balance of durability, chemical resistance, and thermal stability, making it a critical component in advanced coating and adhesive formulations. It is essential for manufacturers in the automotive, aerospace, electronics, and specialty coatings industries seeking to enhance product longevity and performance under extreme conditions.

Application

• High-Performance Industrial Coatings: Used as a binder in protective coatings for metal substrates, automotive clearcoats, and aerospace finishes requiring superior weatherability and chemical resistance.
• Advanced Adhesives and Sealants: Serves as a key resin in structural adhesives, potting compounds, and sealants for electronics and automotive assembly, providing strong bonds and environmental protection.
• Fiber Optic and Electronic Encapsulants: Employed in protective coatings and encapsulants for optical fibers, circuit boards, and sensitive electronic components due to its excellent insulating properties and durability.
• Specialty Elastomers and Castable Urethanes: A fundamental component in the production of cast polyurethane elastomers for industrial rollers, gaskets, and wear-resistant parts.
• Decorative and Functional Films: Used in the formulation of high-gloss, scratch-resistant films for decorative laminates and consumer electronics.
• Composite Materials: Acts as a matrix resin in fiber-reinforced composites for lightweight, high-strength applications.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol]
CAS No.	118496-40-5
Molecular Formula	Contact for details
Molecular Weight	Polymeric substance
Synonyms	Polyurethane resin based on isophthalic acid, neopentyl glycol, trimethylolpropane, isophorone diisocyanate, and bisphenol A propoxylate; IPDI-based polyurethane prepolymer; Aliphatic polyurethane resin; Cross-linked polyurethane polymer; PU resin CAS 118496-40-5; Isophthalic acid/neopentyl glycol/TMP/IPDI/bisphenol A propoxylate polymer; Thermoset polyurethane coating resin
EINECS	Contact for details

Quality Control

Our production of this polyurethane resin adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, solids content, NCO/OH equivalent weight, and gel time are rigorously monitored. Certificates of Analysis (COA) detailing specific lot specifications are available upon request. We support compliance with relevant industry standards for raw materials used in coatings and adhesives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat, sparks, and open flame. This material is moisture-sensitive; containers must be kept sealed to prevent reaction with atmospheric moisture. Observe all local regulations for the storage of polymeric materials.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 - 75%
Viscosity (at 25°C)	2000 - 5000 mPa·s
NCO Content	Contact for details
Equivalent Weight	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Identification (IR)	Conforms

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