Description

Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, hydroxy-terminated, reaction products with ethenylsilylidyne triacetate, hydroxy-terminated di-Me siloxanes, Me Et ketone O,O',O''-(methylsilylidyne)trioxime and trimethoxy[3-(oxiranylmetho CAS NO 123127-07-1 is a specialized, multi-functional silicone-based hybrid polymer designed for advanced material science applications. This compound is engineered to deliver exceptional performance as a reactive intermediate or cross-linking agent, offering a unique combination of silicone flexibility and organic reactivity. It is primarily utilized by formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of high-performance composites and specialty resins.

Application

• High-Performance Coatings: Acts as a cross-linker and adhesion promoter in weather-resistant, anti-corrosive, and release coatings.
• Specialty Adhesives & Sealants: Used to formulate silicone-modified adhesives and sealants with enhanced flexibility, thermal stability, and chemical resistance.
• Advanced Composite Materials: Serves as a reactive modifier or coupling agent in fiber-reinforced plastics (FRP) and other composite systems to improve interfacial bonding.
• Elastomer Production: Functions as a key component in the synthesis of specialty silicone and hybrid organic-silicone elastomers.
• Electronic Encapsulants & Potting Compounds: Provides excellent dielectric properties and environmental protection in electronic applications.
• Surface Modification: Used to treat fillers, pigments, or substrates to improve dispersion, compatibility, and surface properties.

Basic Information

Item	Details
Product Name	Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, hydroxy-terminated, reaction products with ethenylsilylidyne triacetate, hydroxy-terminated di-Me siloxanes, Me Et ketone O,O',O''-(methylsilylidyne)trioxime and trimethoxy[3-(oxiranylmetho CAS NO 123127-07-1
CAS No.	123127-07-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Hydroxy-terminated dimethyl siloxane-methyl silsesquioxane copolymer; Silicone hybrid polymer with oxime and epoxy functional groups; Reactive silicone oligomer; Epoxy-functional silicone resin; Methyl ethyl ketoxime silane adduct; Multi-functional silicone crosslinker; CAS 123127-07-1
EINECS	Contact for details

Quality Control

Our production of this advanced silicone hybrid polymer adheres to strict quality management systems. Each batch is characterized using analytical techniques such as FT-IR, NMR, and GPC to confirm functional group content, molecular weight distribution, and purity. A comprehensive Certificate of Analysis (COA) detailing assay, viscosity, hydroxyl value, and epoxy equivalent weight (where applicable) is provided with every shipment to ensure batch-to-batch consistency and performance reliability for your formulations.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect reactivity and performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Epoxy Equivalent Weight (EEW)	Contact for details
Non-Volatile Matter	> 95%
Water Content (Karl Fischer)	< 0.5%

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