Description

1,3-Benzenedicarboxylic Acid, Polymer With Hexanedioic Acid And 2,2-Oxybisethanol, 1,1-Methylenebis4-Isocyanatobenzene-Terminated is a specialized, high-performance polyurethane prepolymer or resin intermediate. This compound is engineered to deliver exceptional durability, chemical resistance, and tailored mechanical properties in final formulations. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced composite materials.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and protective coatings requiring superior abrasion resistance and weatherability.
• Advanced Adhesives & Sealants: Serves as a backbone polymer for formulating structural adhesives and flexible sealants with strong bonding and elongation properties.
• Specialty Elastomers: A critical intermediate for producing castable or thermoplastic polyurethane elastomers used in gaskets, rollers, and industrial parts.
• Composite Materials: Employed as a matrix resin or modifier in fiber-reinforced composites for the aerospace, automotive, and marine sectors.
• Encapsulation & Potting Compounds: Used in electrical and electronic applications where moisture resistance and thermal stability are paramount.
• Industrial Fabric Coatings: Applied to textiles and nonwovens to create waterproof, durable, and flexible fabric coatings.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic Acid, Polymer With Hexanedioic Acid And 2,2-Oxybisethanol, 1,1-Methylenebis4-Isocyanatobenzene-Terminated
CAS No.	70775-97-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on isophthalic acid, adipic acid, and diethylene glycol, MDI-terminated; Isophthalic Acid-Adipic Acid-Diethylene Glycol Copolymer terminated with Methylene Diphenyl Diisocyanate; Polyester polyol-MDI prepolymer; CAS 70775-97-2; PU prepolymer resin; Thermoset polyurethane intermediate; Aromatic polyester-based polyurethane resin.
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to stringent quality management protocols. Every batch is characterized for critical parameters including NCO content, viscosity, and hydroxyl value to ensure consistency and performance. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with each shipment to guarantee compliance with your formulation requirements.

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 hygroscopic (moisture-sensitive); containers must be kept sealed to prevent moisture ingress, which can lead to premature reaction and gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content (Karl Fischer)	≤ 0.05%

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