Description

Hexanedioic acid, polymer with 1,4-butanediol, 2,2-dimethyl-1,3-propanediol, diphenyl carbonate, 1,2-ethanediol, 1,6-hexanediol and 1,1-methylenebis4-isocyanatobenzene CAS NO 73263-33-9 is a high-performance, multi-component polyurethane or polycarbonate-based copolymer engineered for demanding material science applications. This specialized polymer offers a unique balance of properties derived from its complex monomer composition, including flexibility, chemical resistance, and thermal stability. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced thermoplastic polyurethanes (TPU) and specialty resin formulations.

Application

• High-Performance Coatings and Paints: Used as a resin binder in industrial, automotive, and protective coatings requiring excellent durability, gloss retention, and chemical resistance.
• Advanced Adhesives and Sealants: Serves as a key polymeric component in structural adhesives, potting compounds, and flexible sealants for construction, automotive, and aerospace applications.
• Thermoplastic Polyurethane (TPU) Elastomers: A critical raw material for producing TPUs used in cable sheathing, hoses, gaskets, and wearable device components that demand toughness and elasticity.
• Specialty Resins and Composites: Incorporated into composite materials and molded parts where a specific profile of mechanical strength, thermal properties, and weatherability is required.
• Flexible and Rigid Foams: Can be formulated into polyurethane foams for insulation, cushioning, and packaging materials.
• Industrial Elastomers: Used in the manufacture of rollers, belts, and other industrial rubber goods requiring oil and solvent resistance.

Basic Information

Product Name	Hexanedioic acid, polymer with 1,4-butanediol, 2,2-dimethyl-1,3-propanediol, diphenyl carbonate, 1,2-ethanediol, 1,6-hexanediol and 1,1-methylenebis4-isocyanatobenzene
CAS No.	73263-33-9
Molecular Formula	Polymeric substance - Contact for details
Molecular Weight	Polymeric substance - Contact for details
Synonyms	Poly(hexamethylene adipate) urethane block copolymer; Adipic acid/butanediol/neopentyl glycol/diphenyl carbonate/ethylene glycol/hexanediol/MDI copolymer; Polyurethane resin based on adipic acid, butanediol, and MDI; TPU copolymer with polycarbonate soft segments; Polyester-polycarbonate-urethane copolymer; MDI-based polyurethane prepolymer; Aliphatic-aromatic polyurethane copolymer.
EINECS	Contact for details

Quality Control

Our production of this advanced copolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, hydroxyl value, isocyanate content (NCO%), and thermal transition points are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing specifications and test results 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). This material is moisture-sensitive (hygroscopic); keep containers tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Pellets, granules, or viscous liquid (color as specified)
Identification (IR)	Conforms to standard
Viscosity (at 25°C)	Contact for details
Hydroxyl Value (OH#)	Contact for details
Isocyanate Content (NCO%)	Contact for details
Soft Segment Glass Transition (Tg)	Contact for details
Moisture Content (Karl Fischer)	< 0.05%
Specific Gravity	Contact for details

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