Description

1,3-Benzenedicarboxylic Acid, Polymer With Hexanedioic Acid, 1,1-Methylenebis4-Isocyanatobenzene And 2,2-Oxybisethanol CAS NO 72276-02-9 is a high-performance, segmented polyurethane or polyurethane-urea copolymer engineered for demanding industrial applications. This polymer combines the chemical resistance of aromatic components with the flexibility of aliphatic chains, resulting in a material with excellent mechanical properties and durability. It is primarily utilized in advanced coatings, adhesives, sealants, and elastomers (CASE) where superior abrasion resistance, weatherability, and adhesion are required.

Application

• High-Performance Industrial Coatings: Used as a binder in protective coatings for metal, concrete, and plastic substrates, offering excellent chemical and abrasion resistance.
• Specialty Adhesives & Sealants: Serves as a key component in formulating structural adhesives and flexible sealants for automotive, aerospace, and construction applications.
• Engineering Elastomers: Employed in the production of castable polyurethane elastomers for rollers, wheels, gaskets, and industrial parts requiring toughness.
• Textile & Leather Finishing: Applied in coatings and finishes to enhance the durability, water resistance, and feel of synthetic leather and technical textiles.
• Fiber & Film Modification: Used as a modifying agent to improve the tensile strength, elasticity, and dyeability of synthetic fibers and films.
• Composite Materials: Acts as a matrix or interfacial agent in fiber-reinforced composites to improve load transfer and impact resistance.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With Hexanedioic Acid, 1,1-Methylenebis4-Isocyanatobenzene And 2,2-Oxybisethanol
CAS No.	72276-02-9
Molecular Formula	(C8H6O4·C6H10O4·C15H10N2O2·C4H10O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(ester-urethane) from isophthalic acid, adipic acid, MDI, and diethylene glycol; Polyurethane resin based on isophthalic acid/adipic acid/MDI/DEG; Isophthalic Acid-Adipic Acid-MDI-DEG Copolymer; Poly(ethylene adipate-co-isophthalate) urethane with MDI; MDI-based Polyester Polyurethane; Segmented Polyurethane Elastomer based on IPA/AA/MDI/DEG; Copolymer of benzene-1,3-dicarboxylic acid, hexanedioic acid, 4,4'-methylenebis(phenyl isocyanate), and 2,2'-oxydiethanol
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, hydroxyl value, isocyanate content, and molecular weight distribution are monitored using advanced analytical techniques including GPC, FT-IR, and titration. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance protocols.

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

Specification

Item	Specification
Appearance	Pellets, granules, or clear to pale yellow viscous liquid/solid
Identification (IR)	Conforms to structure
Solid Content	≥ 99.5% (for solid grades) or as per grade (e.g., 70±2% in solvent)
Viscosity (at 25°C)	Grade-specific (e.g., 2000-8000 mPa·s)
Hydroxyl Value (OH#)	Grade-specific (mg KOH/g)
Acid Value	≤ 1.0 mg KOH/g
Color (Gardner)	≤ 3
Moisture Content (KF)	≤ 0.1%

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