Description

3-(1,3-Dimethylbutylidene)Aminopropyltriethoxysilane is a specialized organosilicon coupling agent designed to enhance the adhesion and compatibility between inorganic materials and organic polymers. This compound is critical for formulating high-performance composites and coatings where durability and interfacial strength are paramount. It is primarily utilized by manufacturers in the rubber, sealant, adhesive, and advanced composite materials industries seeking to improve product longevity and performance under demanding conditions.

Application

• As a coupling agent in silica-filled rubber compounds (e.g., tires, industrial belts) to improve reinforcement and reduce rolling resistance.
• Enhancing the adhesion of sealants and adhesives to glass, metal, and mineral surfaces.
• Surface modification of mineral fillers (e.g., clay, talc, silica) for improved dispersion and mechanical properties in plastic composites.
• Formulation of fiberglass-reinforced plastics (FRP) and composites to strengthen the resin-glass fiber interface.
• Primer or additive in protective and decorative coatings to promote substrate wetting and adhesion.
• Used in the production of moisture-curable systems where it acts as a crosslinker and adhesion promoter.

Basic Information

Product Name	3-(1,3-Dimethylbutylidene)Aminopropyltriethoxysilane
CAS No.	116229-43-7
Molecular Formula	C15H33NO3Si
Molecular Weight	303.52 g/mol
Synonyms	N-[3-(Triethoxysilyl)propyl]-4-aza-4-methyl-2-pentanamine; 3-(1,3-Dimethylbutylidene)aminopropyltriethoxysilane; (1,3-Dimethylbutylidene)-3-(triethoxysilyl)-1-propanamine; Amino Silane Coupling Agent KBM-576; Silane coupling agent Si-75; Dynasylan 1189; A 1189; 3-(N-1,3-Dimethylbutylidene)aminopropyltriethoxysilane
EINECS	Contact for details

Quality Control

Our production of 3-(1,3-Dimethylbutylidene)Aminopropyltriethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay and purity verification by GC or HPLC. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to support your quality assurance and regulatory needs.

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 the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.420 - 1.430
Density (20°C)	0.92 - 0.96 g/cm³

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