Description

Hexanedioic acid, polymer with 1,4-butanediol, 1,2-ethanediol, 1,1'-methylenebis[4-isocyanatobenzene] and .alpha.,.alpha.'-[(1-methylethylidene)di-4,1-phenylene]bis[.omega.-hydroxypoly(oxy-1,2-ethanediyl)] is a specialized polyurethane-polyester copolymer designed for high-performance applications. This engineered polymer offers a unique balance of flexibility, chemical resistance, and durability derived from its segmented block structure. It is essential for formulators and manufacturers in the coatings, adhesives, and specialty elastomers industries seeking to enhance product performance.

Application

• High-Performance Coatings: Used as a key resin in industrial, automotive, and protective coatings for excellent weatherability, gloss, and chemical resistance.
• Advanced Adhesives & Sealants: Serves as a base polymer for structural adhesives and flexible sealants requiring strong bonding and environmental stability.
• Specialty Elastomers and Thermoplastic Polyurethanes (TPU): A critical component in formulating durable elastomers for gaskets, rollers, and impact-resistant parts.
• Textile and Leather Finishes: Employed in coatings for synthetic leather, waterproof fabrics, and other functional textiles to provide a soft feel and durability.
• Composite Materials: Acts as a matrix or binder in composite systems to improve interfacial adhesion and mechanical properties.
• Flexible Packaging Inks and Overprint Varnishes: Provides adhesion and scuff resistance in inks and coatings for flexible films and packaging materials.

Basic Information

Product Name	Hexanedioic acid, polymer with 1,4-butanediol, 1,2-ethanediol, 1,1'-methylenebis[4-isocyanatobenzene] and .alpha.,.alpha.'-[(1-methylethylidene)di-4,1-phenylene]bis[.omega.-hydroxypoly(oxy-1,2-ethanediyl)]
CAS No.	73772-38-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane-polyester copolymer; Adipic acid copolymer with butanediol, ethylene glycol, MDI, and bisphenol A ethoxylate; Polyester-polyurethane resin; Thermoplastic polyurethane elastomer (based on adipate); TPU resin; Adipic acid/butanediol/ethylene glycol/MDI/bisphenol A ethoxylate copolymer; PU-PES copolymer
EINECS	Contact for details

Quality Control

Our production of this polyurethane-polyester copolymer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including viscosity, hydroxyl value, isocyanate content, and thermal properties. Certificates of Analysis (COA) documenting full specifications are provided with every shipment, and we support compliance with relevant global regulatory frameworks.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Pale yellow to amber pellets or solid
Identification (IR)	Conforms to structure
Solid Content	≥ 99.0 %
Hydroxyl Value	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Viscosity (melt or solution)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Moisture Content (KF)	≤ 0.1 %

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