Description

Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,4-cyclohexanedimethanol, 1,3-diisocyanatomethylbenzene, hydrazine and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) is a specialized polyurethane prepolymer or resin intermediate, identified by CAS number 67816-01-7. This engineered polymer is valued for its unique combination of flexibility, toughness, and reactivity, derived from its complex multi-component structure. It is primarily sought after by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries who require high-performance, tailored material properties.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and protective coatings for enhanced durability, chemical resistance, and weatherability.
• Advanced Adhesives & Sealants: Serves as a reactive prepolymer in formulating polyurethane adhesives and sealants with superior bonding strength and flexibility.
• Elastomer Manufacturing: Acts as a building block for casting or molding specialized polyurethane elastomers used in rollers, gaskets, and industrial parts.
• Composite Materials: Incorporated as a matrix resin or modifier in fiber-reinforced composites to improve impact resistance and interfacial adhesion.
• Specialty Binders: Utilized in formulating binders for advanced materials where controlled cross-linking and mechanical properties are critical.
• Waterborne Polyurethane Dispersions (PUDs): Can be modified and dispersed in water for more environmentally friendly coating and adhesive applications.

Basic Information

Item	Details
Product Name	Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,4-cyclohexanedimethanol, 1,3-diisocyanatomethylbenzene, hydrazine and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)
CAS No.	67816-01-7
Molecular Formula	Polymeric substance; contact for details.
Molecular Weight	Polymeric substance; contact for details.
Synonyms	Polyurethane prepolymer based on dimethylolpropionic acid, CHDM, and PTMEG; Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, polymer with 1,4-cyclohexanedimethanol, 2,2-bis(hydroxymethyl)propanoic acid, hydrazine and 1,3-diisocyanatomethylbenzene; Poly(tetramethylene ether) glycol-based polyurethane resin; PTMEG-CHDM-DMPA-TMXDI-Hydrazine polymer; CASE resin intermediate; Aqueous polyurethane dispersion prepolymer.
EINECS	Contact for details.

Quality Control

Our production of this advanced polymer intermediate adheres to strict batch-to-batch consistency protocols. Quality is monitored through key parameters including NCO content, viscosity, solids content, acid value, and color. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to ensure it meets 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 moisture-sensitive; keep containers tightly sealed to prevent exposure to atmospheric humidity, which can cause premature reaction or viscosity changes. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 3
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
NCO Content	Contact for details
Acid Value	Contact for details

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