Description

o-((Vinyloxybutyl)-n-Triethoxysilylpropyl)Urethane is a specialized organosilane coupling agent that incorporates both a urethane linkage and a vinyl ether group. This unique molecular architecture is engineered to provide superior adhesion promotion and crosslinking capabilities in demanding polymer and composite systems. It is essential for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance the performance and durability of their products.

Application

• As a key adhesion promoter in high-performance polyurethane (PU) and epoxy-based coatings and adhesives.
• To improve the interfacial bonding between inorganic fillers (e.g., glass, minerals) and organic polymer matrices in advanced composites.
• As a surface-modifying agent for glass fibers and other reinforcements to enhance mechanical properties in fiber-reinforced plastics.
• In the formulation of moisture-curable sealants and encapsulants, where it acts as a crosslinker and stabilizer.
• For the functionalization of nanoparticles and other substrates to introduce polymerizable vinyl ether groups.
• As a reactive intermediate in the synthesis of more complex silane-modified polymers (SMP) and hybrid materials.

Basic Information

Product Name	o-((Vinyloxybutyl)-n-Triethoxysilylpropyl)Urethane
CAS No.	159856-61-8
Molecular Formula	C19H39NO6Si
Molecular Weight	405.61 g/mol
Synonyms	3-(Triethoxysilyl)propyl (2-(vinyloxy)butyl)carbamate; Ureido silane vinyl ether; (3-Triethoxysilylpropyl)-N-(2-vinyloxybutyl)carbamate; Vinyl ether functional urethane silane;
EINECS	Contact for details

Quality Control

Every batch of our o-((Vinyloxybutyl)-n-Triethoxysilylpropyl)Urethane is manufactured under strict quality management systems and undergoes rigorous analytical testing. We ensure consistent purity, reactivity, and performance to meet the precise requirements of advanced material formulations. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain optimal shelf life.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (NMR/HPLC)	≥ 95.0%
Refractive Index (n20D)	1.430 - 1.440
Density (20°C)	0.98 - 1.02 g/mL
Moisture (Karl Fischer)	≤ 0.5%

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