Description

Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,3-diisocyanatomethylbenzene and .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl), compd. with N,N-diethylethanamine is a specialized polyurethane prepolymer or resin intermediate, neutralized with triethylamine. This compound matters as a versatile building block for formulating high-performance coatings, adhesives, and sealants that require specific rheological and curing properties. Industries involved in the production of industrial paints, wood finishes, and specialty elastomers rely on this advanced polymer for its tailored functionality and consistent performance.

Application

• Industrial and Protective Coatings: As a key resin component in high-durability paints for metal, concrete, and industrial equipment.
• Wood Finishes and Varnishes: Used in formulations for furniture, flooring, and cabinetry coatings requiring excellent adhesion and chemical resistance.
• Adhesives and Sealants: Serves as a prepolymer in the synthesis of polyurethane-based adhesives for construction, automotive, and packaging applications.
• Elastomer Production: A precursor in manufacturing castable or thermoplastic polyurethane elastomers for gaskets, wheels, and industrial parts.
• Specialty Inks: Utilized in the formulation of high-performance printing inks that demand flexibility and substrate adhesion.
• Textile and Leather Coatings: Provides a durable, flexible film-forming layer for synthetic leather and coated fabrics.

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), compd. with N,N-diethylethanamine
CAS No.	68189-00-4
Molecular Formula	Typically a complex polymer mixture; contact for details.
Molecular Weight	Varies by grade and composition.
Synonyms	Polyurethane prepolymer, triethylamine salt; TMP-TDI-PEG prepolymer, neutralized; Trimethylolpropane-TDI-Polyethylene glycol adduct; Polyoxyethylene glycol-TDI-TMP polymer with triethylamine; Urethane acrylate oligomer intermediate; Neutralized aliphatic polyurethane resin; CAS 68189-00-4; Isocyanate-terminated polyethylene glycol polymer with trimethylolpropane, triethylamine salt.
EINECS	Contact for details.

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is controlled for critical parameters such as isocyanate (NCO) content, viscosity, solids content, and amine value to guarantee batch-to-batch consistency for your formulations. Certificates of Analysis (COA) detailing all specifications are available upon request. Our manufacturing adheres to a strict quality management system to support applications requiring reliable material performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a recommended temperature of 15-25°C. Keep away from heat, sparks, and open flame. Containers must be kept tightly sealed to prevent moisture absorption and potential reaction. Separate from strong oxidizing agents, acids, and bases.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 - 80 %
Viscosity (25°C)	2000 - 8000 mPa·s
Isocyanate (NCO) Content	1.0 - 3.0 %
Acid Value	≤ 2.0 mg KOH/g
Amine Value	Contact for details
Identification (IR)	Conforms

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