Description

1,3-Propanediol, 2,2-Dimethyl-, Polymer With 1,3-Diisocyanatomethylbenzene is a specialized polyurethane prepolymer derived from a neopentyl glycol derivative and a diisocyanate. This compound is valued for its role as a key building block in the synthesis of high-performance polyurethane materials, offering enhanced chemical resistance and structural stability. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials. The product, identified by CAS No. 37338-54-8, is engineered to meet the stringent demands of industrial formulations requiring durability and specific performance characteristics.

Application

• High-Performance Polyurethane Coatings: Used as a prepolymer to formulate durable, chemical-resistant, and weatherable coatings for industrial and automotive applications.
• Specialty Adhesives and Sealants: Serves as a core component in adhesives requiring strong bonding, flexibility, and resistance to environmental stress.
• Elastomer Production: A key raw material for manufacturing polyurethane elastomers used in gaskets, rollers, and impact-absorbing components.
• Composite Material Binders: Employed in the production of fiber-reinforced plastics (FRP) and other composites where matrix toughness is critical.
• Waterproofing and Corrosion Protection: Formulated into coatings and membranes that provide long-term protection for infrastructure and metal surfaces.
• Flexible and Rigid Foams: Can be utilized in specialized foam systems where specific mechanical or thermal properties are required.

Basic Information

Product Name	1,3-Propanediol, 2,2-Dimethyl-, Polymer With 1,3-Diisocyanatomethylbenzene
CAS No.	37338-54-8
Molecular Formula	(C5H12O2 • C10H8N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(oxy-1,1-dimethylethylene-1,3-diyloxycarbonylimino-1,3-phenylenemethyleneiminocarbonyl); Polyurethane prepolymer from 2,2-dimethyl-1,3-propanediol and 1,3-diisocyanatomethylbenzene; m-Xylylene diisocyanate polymer with 2,2-dimethyl-1,3-propanediol; Neopentyl glycol-m-XDI prepolymer; m-XDI/Neopentyl glycol adduct; Poly(m-xylylene neopentyl glycol urethane); MXDI-NPG prepolymer
EINECS	Contact for details

Quality Control

Our production of 1,3-Propanediol, 2,2-Dimethyl-, Polymer With 1,3-Diisocyanatomethylbenzene adheres to a strict quality management system to ensure batch-to-batch consistency and performance. Key parameters such as isocyanate (NCO) content, viscosity, and residual monomer levels are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. Our commitment to quality supports compliance with relevant industry standards for raw materials used in polymer synthesis.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; exposure to atmospheric moisture or prolonged light can lead to polymerization or degradation. Keep away from heat, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Residual Monomer (HPLC)	< 0.5%
Water Content (Karl Fischer)	< 0.05%

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