Siltech Corporation

www.siltech.com

225 Wicksteed Avenue
Toronto
M4H 1G5
Canada

+14164244567

Activities

Summary

Siltech has been developing novel silicones for the Personal Care market for more than 20 years. During this time Siltech has grown to become a significant supplier of unique silicones for use as emollients, emulsifiers, conditioning agents, softeners, gloss improvers and wetting agents.

Profile

About Siltech

Siltech has been developing novel silicones for the Personal Care market for more than 20 years. During this time Siltech has grown to become a significant supplier of unique silicones for use as emollients, emulsifiers, conditioning agents, softeners, gloss improvers and wetting agents. In addition to offering a line of standard products, our chemists work jointly with customers to develop specific molecules and products for various unique applications.

Siltech operates two manufacturing plants in Canada. Both sites have the capability of scaling up products from the lab through to full 20,000 kg batches.

New Developments

Most recently, Siltech has developed replacements for cyclomethicones, namely Cyclotetrasiloxane (D4) and Cyclopentasiloxane (D5). This effort has resulted in two products that provide the same dry feel as cyclomethicones. Unlike other “cyclomethicone replacements”, our products have a minimal odor, do not break down into other by-products and are cost effective alternatives.

We offer two alternative products, depending on the system being formulated.

Silwax D02 is a low carbon alkyl methicone with the INCI name of Ethyl Methicone. This can be used as a direct replacement for D4 or D5 in various cosmetic products.

A most novel use of Silwax D02 is blending 5% of it into a natural oil such as soybean, safflower or olive oil. Because of Silwax D02’s unique ability to reduce the surface tension of such natural oils, the resulting product again has a similar feel to cyclomethicones. Such a blended product is very useful for formulating anti-perspirant sticks and other products where the use of cyclomethicone is very high. This both reduces the product’s cost and increases the amount of natural ingredients that can be incorporated into the final product. Such a cost-effective formula is shown below.

Silube CR-1 has the INCI name of Polydecene & Cetyldimethicone/Bis Vinyldimethicone Cross Polymer. This product significantly reduces the surface tension of non-polar oils, such as hydrocarbons, making them feel more like cyclcomethicones. Again, formulating anti-perspirant sticks with Silube CR-1 enables the formulator to incorporate a significant amount of relatively inexpensive ingredients. Such a cost-effective formula is shown below.

Formulation 1: Antiperspirant with Silwax D02 as D5 Replacement, Formulation FA800.3A

IngredientINCI Name%w/w
Phase A
Reach AZP-908 (Summit Research)Aluminum/Zirconium Tetrachlorohydrex-GLY22.00
Silsurf A218-F (Siltech)PEG/PPG 18/6 Dimethicone2.50
Phase B
Cyclopentasiloxane - D5 (Various)Cyclopentasiloxane0.00
Silwax D02 (Siltech)Ethyl Methicone1.50
Soybean OilSoybean Oil28.50
Phase C
Fancol IH-CG (Fanning)Isohexadecane9.00
Probutyl 14 (Croda)PPG-14 Butyl Ether9.50
Castorwax NF (Vertellus)Hydrogenated Castor Oil2.50
Protomate 400-DS (Protameen)PEG-8 Distearate1.00
Crodacol S-95 NF (Croda)Stearyl Alcohol17.50
Silwax J219M (Siltech)Cetyl/Hexacosyl Dimethicone2.00
Phase D
270764 Talc USP 300 BC 127 (Brenntag)Talc3.00
Cab-O-Sil M-5 (Cabot)Silica0.50
Phase E
Fragrance Blue Musk (Lebermuth)Fragrance (Parfum)0.50

Procedure: 1. In a side vessel, combine Phase A ingredients. Impeller mix to uniformity. 2. In main vessel, heat Phase B ingredients to 70ºC under agitation. Continue mixing and add Phase A. Bring to 75ºC. 3. Combine Phase C in side vessel, heat to 85ºC under impeller agitation and mix to uniformity. 4. Add Phase C to AB under homogenization. Maintain batch at 80ºC. 5. Pre-combine Phase D. Add to batch under homogenization. Begin cooling. 6. Add Phase E at 70ºC under homogenization. Continue cooling. 7. Pour batch into sticks at 65ºC. 8. Heat-treat surfaces.

Note: The experimental sticks more easily co-solubilized the other ingredients than in control batch.

Technical information contained herein is believed to accurate. However, it is furnished without charge or obligation and is given and accepted at the recipient’s sole risk. No guarantee of the accuracy of the information is made and the products discussed are sold without conditions or warranties expressed or implied. Purchasers should make their own tests and determine suitability of the product for their particular purposes. Nothing contained herein shall be considered a recommendation for any use that may infringe upon patent rights. © Siltech 2010 All Rights Reserved

Formulation 2: Antiperspirant with Silube CR-1 as D5 Replacement, Formulation FA800.3B

IngredientINCI Name%w/w
Phase A
Reach AZP-908 (Summit Research)Aluminum/Zirconium Tetrachlorohydrex-GLY22.00
Silsurf A218-F (Siltech)PEG/PPG 18/6 Dimethicone2.50
Phase B
Cyclopentasiloxane - D5 (Various)Cyclopentasiloxane0.00
Silube CR-1 (Siltech)Polydecene & Cetyl Dimethicone/Bis Vinyldimethicone Crosspolymer1.50
Mineral OilMineral Oil28.50
Phase C
Fancol IH-CG (Fanning)Isohexadecane9.00
Castorwax NF (Vertellus)Hydrogenated Castor Oil2.50
Protomate 400-DS (Protameen)PEG-8 Distearate1.00
Crodacol S-95 NF (Croda)Stearyl Alcohol 18.00
Silwax J219M (Siltech)Cetyl/Hexacosyl Dimethicone2.00
Phase D
270764 Talc USP 300 BC 127 (Brenntag)Talc3.00
Cab-O-Sil M-5 (Cabot)Silica0.50
Phase E
Fragrance Blue Musk (Lebermuth)Fragrance (Parfum)0.50

Procedure: 3. In a side vessel, combine Phase A ingredients. Impeller mix to uniformity. 4. In main vessel, heat Phase B ingredients to 70ºC under agitation. Continue mixing and add Phase A. Bring to 75ºC. 3. Combine Phase C in side vessel, heat to 85ºC under impeller agitation and mix to uniformity. 9. Add Phase C to AB under homogenization. Maintain batch at 80ºC. 10. Pre-combine Phase D. Add to batch under homogenization. Begin cooling. 11. Add Phase E at 70ºC under homogenization. Continue cooling. 12. Pour batch into sticks at 65ºC. 13. Heat-treat surfaces.

Note: The experimental sticks more easily co-solubilized the other ingredients than in control batch.

Technical information contained herein is believed to accurate. However, it is furnished without charge or obligation and is given and accepted at the recipient’s sole risk. No guarantee of the accuracy of the information is made and the products discussed are sold without conditions or warranties expressed or implied. Purchasers should make their own tests and determine suitability of the product for their particular purposes. Nothing contained herein shall be considered a recommendation for any use that may infringe upon patent rights. © Siltech 2010 All Rights Reserved