Description

1,3-Benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene] is a high-performance, segmented copolyester-urethane polymer designed for demanding industrial applications. This material is engineered to deliver an exceptional balance of mechanical strength, chemical resistance, and thermal stability, making it a critical component in advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for specialty fiber and film production where durability and performance under stress are paramount.

Application

• High-Performance Coatings: Used as a resin binder in industrial, automotive, and marine coatings for superior abrasion resistance, flexibility, and weatherability.
• Advanced Adhesives & Sealants: Serves as a key polymer in structural adhesives and elastic sealants requiring strong bonding and long-term durability.
• Engineering Elastomers and Thermoplastic Polyurethanes (TPU): A fundamental building block for manufacturing flexible, tough elastomers used in gaskets, hoses, wheels, and cable sheathing.
• Specialty Films and Fibers: Employed in the production of breathable, waterproof membranes and high-tenacity synthetic fibers for technical textiles.
• Composite Materials: Acts as a matrix or modifier in polymer composites to enhance impact resistance and interfacial adhesion.
• Industrial Rollers and Belts: Provides the necessary resilience and wear resistance for components in printing, paper, and material handling equipment.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic acid polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene]
CAS No.	126683-18-9
Molecular Formula	(C8H6O4 · C8H6O4 · C5H12O2 · C2H6O2 · C6H14O2 · C15H10N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(ester-urethane) copolymer; Segmented copolyester urethane; TPU based on IPA/TPA/ND/EG/HD/MDI; Isophthalic acid-Terephthalic acid-Neopentyl glycol-Ethylene glycol-1,6-Hexanediol-MDI copolymer; Aromatic polyester-urethane elastomer; Copolyester of isophthalic acid, terephthalic acid, neopentyl glycol, ethylene glycol, hexanediol, and methylene diphenyl diisocyanate; MDI-based polyester polyurethane
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems, ensuring batch-to-batch consistency and performance reliability. Key parameters such as intrinsic viscosity, hydroxyl value, isocyanate content, and thermal transition points are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing specific lot specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place at a controlled room temperature (15-25°C). Original containers should be kept sealed under dry, inert atmosphere (e.g., nitrogen) when not in use to prevent moisture absorption and premature polymerization or property degradation.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Identification (IR)	Conforms to structure
Intrinsic Viscosity	Contact for details
Hydroxyl Value (OH#)	Contact for details
Melting Point / Glass Transition (DSC)	Contact for details
Moisture Content (Karl Fischer)	< 0.1%
Ash Content	< 0.05%

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