Description

1,4-Benzenedicarboxylic acid, polymer with hexahydro-2H-azepin-2-one and .alpha.,.alpha.'-[(1-methylethylidene)di-4,1-phenylene]bis[.omega.-hydroxypoly(oxy-1,2-ethanediyl)] is a high-performance thermoplastic polyamide copolymer, commonly known as a transparent nylon or polyamide block copolymer. This engineered material matters for its unique combination of optical clarity, chemical resistance, and mechanical toughness, bridging the gap between traditional nylons and amorphous engineering plastics. It is primarily needed by manufacturers in the automotive, electronics, and consumer goods industries seeking durable, see-through components.

Application

• Automotive Components: Used for fuel system sight glasses, fluid reservoirs, and protective covers requiring chemical resistance and clarity.
• Electrical & Electronics: Ideal for transparent connectors, housings for sensors, and insulating films due to its good dielectric properties and dimensional stability.
• Consumer Goods: Manufacture of eyewear frames, sports equipment, and transparent tool housings that benefit from its impact strength and aesthetic appeal.
• Medical Devices: Suitable for non-implantable medical device housings, connectors, and clear tubing where sterilization compatibility and durability are key.
• Packaging Films: Employed in high-barrier, transparent packaging films for sensitive products, leveraging its gas barrier properties.
• Industrial Parts: Production of sight windows, gauges, and protective shields in chemical processing equipment.

Basic Information

Product Name	1,4-Benzenedicarboxylic acid, polymer with hexahydro-2H-azepin-2-one and .alpha.,.alpha.'-[(1-methylethylidene)di-4,1-phenylene]bis[.omega.-hydroxypoly(oxy-1,2-ethanediyl)]
CAS No.	175649-47-5
Molecular Formula	(C8H6O4·C6H11NO·CnHmOp)x
Molecular Weight	Varies by grade and block length. Contact for details.
Synonyms	Poly(ether-block-amide) copolymer; Transparent Nylon Copolymer; PEBA (Polyether Block Amide); TPA-PCL-PEG Copolymer; Polyamide 6T/6I copolymer with polyether; Thermoplastic Polyamide Elastomer; Amorphous Polyamide Copolymer; PACM-12/PEG/TPA Copolymer
EINECS	Contact for details.

Quality Control

Our production of this advanced copolymer adheres to strict quality management systems, ensuring batch-to-batch consistency in key properties like intrinsic viscosity, thermal stability, and optical clarity. Material is characterized using GPC, DSC, and FTIR to verify polymer structure and composition. Certificates of Analysis (COA) detailing specifications for your requested grade are provided with every shipment.

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 strong heat sources and open flames. As a hygroscopic polymer, the material should be kept in its original moisture-barrier packaging until use to prevent moisture absorption, which can affect processing and final properties.

Specification

Item	Specification
Appearance	Clear to translucent pellets or granules
Identification (IR)	Conforms to structure
Intrinsic Viscosity	Grade-dependent (e.g., 0.8 - 1.2 dL/g)
Melting Point (DSC)	180 - 220 °C
Glass Transition Temp (Tg)	60 - 100 °C
Moisture Content (KF)	< 0.1 %
Ash Content	< 0.05 %
Color (Hazen)	< 30

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