Description

1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene Homopolymer is a high-performance, aromatic polyisocyanate prepolymer derived from tetramethylxylylene diisocyanate (TMXDI). This compound is valued for its excellent weatherability, chemical resistance, and ability to form durable, flexible coatings and adhesives. It is primarily utilized in the formulation of advanced polyurethane systems for demanding industrial applications where superior performance is required.

Application

• High-Performance Coatings: Used as a key component in polyurethane coatings for automotive, aerospace, and industrial maintenance applications, offering exceptional UV stability and chemical resistance.
• Specialty Adhesives & Sealants: Serves as a curing agent in the production of high-strength, flexible adhesives and sealants for construction, transportation, and assembly.
• Elastomers: Employed in the synthesis of cast and thermoplastic polyurethane elastomers that require a balance of toughness, flexibility, and hydrolytic stability.
• Composite Materials: Acts as a matrix resin or crosslinker in fiber-reinforced composites for marine, wind energy, and sporting goods.
• Waterborne Polyurethane Dispersions (PUDs): Used to create environmentally friendly, low-VOC coating and adhesive systems with enhanced durability.

Basic Information

Item	Detail
Product Name	1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene Homopolymer
CAS No.	157299-02-0
Molecular Formula	(C14H16N2O2)n
Molecular Weight	Contact for details
Synonyms	TMXDI Homopolymer; Poly(tetramethylxylylene diisocyanate); 1,3-Bis(1-isocyanato-1-methylethyl)benzene polymer; m-TMXDI polymer; Aromatic polyisocyanate based on TMXDI; Meta-tetramethylxylylene diisocyanate homopolymer; Isocyanic acid, polymethylenepolyphenylene ester
EINECS	Contact for details

Quality Control

Our 1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene Homopolymer is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency in isocyanate content (NCO%), viscosity, and purity. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This material is hygroscopic (moisture-sensitive) and must be kept under a dry, inert atmosphere (e.g., nitrogen) to prevent reaction with atmospheric moisture, which can lead to gelation or loss of activity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Isocyanate Content (NCO%)	Contact for details
Viscosity (at 25°C)	Contact for details
Specific Gravity (at 25°C)	Contact for details
Monomer Content	< 0.5% (by HPLC)

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