Description

Propanoic Acid, 3-Hydroxy-2-(Hydroxymethyl)-2-Methyl-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypolyoxy(Methyl-1,2-Ethanediyl) is a specialized polyurethane prepolymer or resin intermediate, known for its excellent film-forming, adhesion, and flexibility properties. This compound is engineered to deliver superior performance in demanding coating and adhesive formulations where durability and chemical resistance are critical. It is primarily sought after by manufacturers in the paints & coatings, adhesives & sealants, and specialty polymers industries for creating high-performance end products.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and marine coatings for enhanced weatherability, gloss, and chemical resistance.
• Adhesives & Sealants: Serves as a polyurethane prepolymer in the formulation of structural adhesives, flexible sealants, and bonding agents.
• Elastomers and Castable Urethanes: A vital intermediate for producing flexible and rigid polyurethane elastomers with tailored mechanical properties.
• Textile & Leather Finishes: Employed in coatings for textiles and synthetic leather to improve abrasion resistance, water repellency, and hand feel.
• Composite Materials: Acts as a matrix resin or binder in fiber-reinforced plastics and other composite systems.
• Industrial Maintenance Paints: Formulated into protective coatings for metal, concrete, and other substrates in corrosive environments.

Basic Information

Product Name	Propanoic Acid, 3-Hydroxy-2-(Hydroxymethyl)-2-Methyl-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypolyoxy(Methyl-1,2-Ethanediyl)
CAS No.	37273-57-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on dimethylolpropionic acid, TDI, and PEG; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 2-(hydroxymethyl)-2-methyl-3-hydroxypropanoic acid and 1,3-diisocyanatomethylbenzene; DMPA-TDI-PEG prepolymer; Hydroxyl-terminated polyurethane dispersion resin; Aqueous polyurethane resin intermediate; Aliphatic/Aromatic polyether urethane prepolymer; Reactive polyurethane oligomer
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management systems. Every batch is characterized for critical parameters including hydroxyl value, isocyanate content, viscosity, and solids content to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are provided and 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 room temperature (15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive). Keep container tightly sealed when not in use to prevent moisture absorption and premature reaction. Store away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Solids Content	Contact for details
Viscosity (25°C)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	Contact for details
Isocyanate Content (NCO %)	Contact for details
Color (Gardner)	≤ 3
Moisture Content	≤ 0.1%

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