Description

5-Isobenzofuran Carboxylic Acid, 1,3-Dihydro-1,3-Dioxo-, Polymer With Hexahydro-2H-Azepin-2-One And 1,1'-Methylenebis[4-Isocyanatobenzene] is a high-performance poly(amide-imide) polymer, known for its exceptional thermal stability and robust mechanical properties. This advanced engineering material is critical for applications demanding reliability under extreme conditions, offering superior resistance to heat, chemicals, and wear. It is primarily sought by manufacturers in the aerospace, automotive, and electronics industries for producing high-strength components, insulating films, and durable coatings.

Application

• High-Temperature Wire and Cable Insulation: Used as a primary enamel or coating for magnet wires and electrical components requiring long-term thermal and chemical resistance.
• Aerospace Components: Manufacture of lightweight, high-strength parts such as bushings, seals, and structural elements that must withstand extreme environmental stress.
• Automotive Engineering Plastics: Formulation of under-the-hood components, connectors, and sensor housings that are exposed to high temperatures and aggressive fluids.
• Industrial Coatings and Adhesives: Basis for protective coatings for metal substrates and high-performance adhesives used in demanding industrial settings.
• Electronic Encapsulation: Potting and encapsulation material for sensitive electronic assemblies to provide excellent electrical insulation and environmental protection.
• Advanced Composite Materials: Reinforcement fiber or matrix resin in composites for applications requiring a high strength-to-weight ratio and thermal durability.

Basic Information

Item	Details
Product Name	5-Isobenzofuran Carboxylic Acid, 1,3-Dihydro-1,3-Dioxo-, Polymer With Hexahydro-2H-Azepin-2-One And 1,1'-Methylenebis[4-Isocyanatobenzene]
CAS No.	27968-23-6
Molecular Formula	(C9H4O5 · C6H11NO · C15H10N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(amide-imide) from Trimellitic Anhydride, Caprolactam, and MDI; PAI Polymer; Polyamideimide Resin; Torlon (Trade Name Series); Trimellitic Anhydride-Caprolactam-MDI Copolymer; Amide-Imide Polymer; High-Temperature Poly(amide-imide); Engineering Thermoplastic Poly(amide-imide)
EINECS	Contact for details

Quality Control

Our poly(amide-imide) polymer is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as inherent viscosity, glass transition temperature (Tg), and thermal stability. Our quality commitment aligns with industry best practices for high-performance polymers, and specifications can be tailored to meet specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect processing and final properties.

Specification

Item	Specification
Appearance	Yellow to amber granules or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	0.4 - 1.2 dL/g (typical)
Glass Transition Temperature (Tg)	270 - 290 °C
Moisture Content	< 0.5 %
Ash Content	< 0.1 %

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