Isocyanate Functional Silanes, Silane Coupling Agents

SiSiB is worldwide leading manufacturer of organosilanes for over 30 years. Most of SiSiB isocyanate silanes are bifunctional organosilanes possessing one reactive isocyanate group and hydrolyzable inorganic methoxysilyl or ethoxysily groups. The dual nature of its reactivity allows them to bind chemically to both inorganic materials and organic polymers, thus functioning as an adhesion promoter, surface modifier and as a reactant for product modification.

SiSiB isocyanate silanes are used for the functionalization of numerous compounds with active hydrogen atoms. SiSiB isocyanate silanes hydrolyze in the presence of moisture to form silanols, which can react with themselves to produce siloxanes.

Isocyanate silanes by SiSiB silicone factory can be used as endcapper for isocyanate functional prepolymer systems, like silane terminated polyurethane and silane terminated polyether. SiSiB® PC2710 (3-isocyanatopropyltrimethoxysilane, CAS No. 15396-00-6), SiSiB® PC2720 (3-isocyanatopropyltriethoxysilane, CAS No. 24801-88-5), 3-isocyanatopropylmethyldimethoxysilane are more particularly preferred.

SiSiB isocyanate silanes can be used as crosslinkers for one part moisture curable urethane adhesives, sealants and coatings.

SiSiB isocyanate silanes can be used as adhesion promoters for silicone sealants or coatings, to enhance adhesion to organic substrates with active hydrogen atoms.

SiSiB isocyanate silanes can be used as adhesion promoters for one part moisture curable and two part reactive urethane systems.

SiSiB isocyanate silanes can provide good wet adhesion to glass, metal and other inorganic substrates, and can provide good thermal, chemical and UV stable performance.

SiSiB® PC2720 is hydrolyzes slower than SiSiB® PC2710. SiSiB® PC2720 KBE 9007 silane is better for applications requiring greater open time or enhanced shelf stability.

SiSiB® PC2780, (tris-[3-(trimethoxysilyl)propyl]-isocyanurate, CAS No. 26115-70-8), is a highly effective adhesion promoter in silicone-based sealants, the isocyanaurate structure provides good compatibility with wide range of organic polymers.