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http://www.cfmats.com/siloxanes-fluids/cyclic-siloxanes-dual-end-siloxanes/

In addition to silicone fluids, Co-Formula offers a series of cyclic siloxanes including D4, D5, D3F and V4. These siloxanes with a cyclic structure are mainly acting as important intermediates and precursors for the preparation of organic silicone products. Co-Formula main cyclic siloxanes are cyclomethicones, that is a group of methyl siloxanes or cyclic polydimethylsiloxane polymers. Such cyclic siloxanes possess low viscosity, high volatility, excellent spreading properties so they are also used in a wide variety of cosmetic products and maintenance products.

Main Applications of Cyclic Siloxanes
The main application fields of Co-Formula cyclic siloxanes are constructions, paints, adhesives, personal care products, textiles and fabrics, health-care products and chemical synthesis. Main products available are listed in the following table.

Trade CodeChemical NameCAS No.Status
CFS-D4Octamethylcyclotetrasiloxane556-67-2Commercial
CFS-D5Decamethylcyclopentasiloxane541-02-6Commercial
CFS-6565Octaphenylcyclotetrasiloxane546-56-5Commercial
CFS-D31,3,5,7-Tetramethylcyclotetrasiloxane2370-88-9MTO
CFS-V4Tetravinyltetramethylcyclotetrasiloxane2554-06-5MTO
CFS-D3F1,3,5-Tris(3,3,3-trifluoropropyl)methylcyclotrisiloxane2374-14-3MTO

Dual-end Type Siloxanes
Besides silicone fluids and commercial siloxanes for general-purpose applications, Co-Formula has successfully developed a series of specific dual-end type siloxanes. With the efforts of the technical team, several siloxanes dual-terminated with functional groups have been synthesized. Among these dual-end type siloxanes, CFS-267, Tetramethyldisiloxane (abbreviated as TMDSO) is a basic intermediate for the preparation of a wide range of silicone products. It can be used to produce high-performance organosilicon surfactants, liquid silicone rubber, modified silicone oils and organic resin modifiers. CFS-267 can also be used for the preparation of polysiloxanes with functional end groups.

At Co-Formula, you may also find polysiloxanes which are dual end-capped with amino, epoxy, vinyl, methacryloxy and other functional groups. According to different functional group, these polysiloxanes can be used in different application areas. Amino and epoxy dual-end siloxanes are mostly used in textiles, coating and sealants industries. Co-Formula sincerely looks forward to cooperating with international customers to explore the un-known application fields of dual-terminated siloxanes.

Hubei Co-Formula Material Tech Co., Ltd. is recognized globally as an ISO certified manufacturer. We provide 3-Isocyanatopropyltrimethoxysilane, Chloromethyltriethoxysilane, silane coupling agent and so on. Want to know more? Please conatct us.