Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,3-Diisocyanatomethylbenzene, Hexanedioic Acid, Hexanediol And 1,1'-Methylenebis [4-Isocyanatobenzene] CAS NO 68630-98-8 is a high-performance, multi-component polyurethane or polyurethane-urea copolymer designed for demanding industrial applications. This engineered polymer offers a unique balance of chemical resistance, mechanical strength, and thermal stability derived from its sophisticated aromatic and aliphatic monomer composition. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials requiring durable and resilient polymer matrices.

Application

• High-Performance Industrial Coatings: Used as a binder in protective coatings for metal, concrete, and plastic substrates, providing excellent abrasion, chemical, and UV resistance.
• Specialty Adhesives and Sealants: Serves as a key component in formulating structural adhesives, potting compounds, and flexible sealants for automotive, aerospace, and construction applications.
• Engineering Elastomers and Castables: Employed in the production of durable rollers, gaskets, wheels, and impact-resistant parts due to its tailored elastomeric properties.
• Composite Material Matrix: Acts as a polymer matrix in fiber-reinforced composites, offering strong interfacial adhesion and enhanced mechanical performance.
• Textile and Leather Finishing: Utilized in coatings and finishes to impart water repellency, durability, and a soft hand feel to fabrics and synthetic leather.
• Wire and Cable Insulation: Applied as a protective, flexible insulating layer that resists environmental stress cracking and maintains performance over a wide temperature range.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,3-Diisocyanatomethylbenzene, Hexanedioic Acid, Hexanediol And 1,1'-Methylenebis [4-Isocyanatobenzene]
CAS No.	68630-98-8
Molecular Formula	Polymeric Substance (Contact for details)
Molecular Weight	Polymeric Substance (Contact for details)
Synonyms	Polyurethane resin from isophthalic acid, m-xylylene diisocyanate, adipic acid, 1,6-hexanediol, and MDI; Copolymer of isophthalic acid, MXDI, adipic acid, hexanediol, and methylene diphenyl diisocyanate; PU resin based on IPA/MXDI/AA/HDI/MDI; Isophthalic acid-MXDI-adipic acid-hexanediol-MDI copolymer; Aromatic-aliphatic polyurethane copolymer; Thermoplastic polyurethane (TPU) variant; MDI/MXDI-based polyurethane elastomer precursor.
EINECS	Contact for details

Quality Control

Our production of this advanced copolymer adheres to stringent quality management systems. Each batch undergoes comprehensive analysis to ensure consistency in key parameters such as viscosity, solids content, isocyanate (NCO) content, and mechanical properties. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH, and can tailor specifications to meet specific customer or application standards.

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). This material is moisture-sensitive (hygroscopic) and may react with atmospheric moisture; ensure containers are sealed properly after use. Keep away from strong acids, bases, and oxidizing agents. For long-term storage, consider using an inert gas blanket.

Specification

Item	Specification
Appearance	Pellets, granules, or viscous liquid (grade dependent)
Identification (IR)	Conforms to structure
Solid Content	Contact for details
Viscosity (Brookfield)	Contact for details
Isocyanate (NCO) Content	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Color (Gardner)	≤ 3
Moisture (Karl Fischer)	≤ 0.05%

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