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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 Code

Chemical Name

CAS No.

Status

CFS-D4

Octamethylcyclotetrasiloxane

556-67-2

Commercial

CFS-D5

Decamethylcyclopentasiloxane

541-02-6

Commercial

CFS-6565

Octaphenylcyclotetrasiloxane

546-56-5

Commercial

CFS-D3

1,3,5,7-Tetramethylcyclotetrasiloxane

2370-88-9

MTO

CFS-V4

Tetravinyltetramethylcyclotetrasiloxane

2554-06-5

MTO

CFS-D3F

1,3,5-Tris(3,3,3-trifluoropropyl)methylcyclotrisiloxane

2374-14-3

MTO


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.

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