Ciba Speciality Chemicals

IAN J. FLETCHER and RUDOLF ZINK Research and Development Department, Chemicals Division, Ciba-Geigy AG, CH-4002 Basel, Switzerland present address Consumer Care Division, Ciba Speciality Chemicals, D79639 Grenzach-Wyhlen, Germany. 

Mineral Preparation for AFM Imaging. Both untreated and polymer treated mineral samples were attached to metallic stubs using a rapid acting araldite from Ciba Speciality Chemicals. The araldite permitted careful placing of the minerals such that macroscopically flat areas were accessible for AFM analysis. 

Assignee Ciba Speciality Chemical Corporation (Tarrytown, NY)... 

The Cibacron LS range of reactive dyes for cotton, sold by Ciba Speciality Chemicals, was developed in record time by a small team practising a new faster-to-market philosophy. In total it took two years to develop and introduce the new products, half the time it normally takes. 

Akzo Nobel O Ciba Specially Chemicals O qDSM ... 

Jakob B, Ciba Speciality Chemicals, private communication. 

My gratitude goes particularly to Denys Glynne Jones, who constantly encouraged me. and to Dr Alberto Zilli, Product and Quality Manager of Ciba Speciality Chemicals, for his valuable assistance in writing this review. 

The known desymmetrization of prochiral 3-substituted glutarates via enzymatic hydrolysis [65] has been optimized by chemists at Ciba Speciality Chemicals for the synthesis on a large scale [66]. The a-chymotrypsin-catalyzed process is characterized by a high substrate concentration of 285 g L and an isolated yield of 94% product with an ee of 98.2% (route C). 

Ciba Speciality Chemicals realised that their existing vacuum system was excessively wasteful in terms of lost product, maintenance requirements and disposal of contaminated lubricating oil (GC235). 

Vitamin E, as an antioxidant choice for Polyethylene Medical Packaging, Anthony O Driskoll, Ciba speciality Chemical Inc. Basel, Switzerland. 

Ciba Specially Chemicals Inc. Group Research, K-420.2.18,4002 Basel, Switzerland... 

Hans Gempeler. Wolfgang Schneider. Ciba Speciality Chemicals Inc.. Basel, Switzerland (Section 2.10)... 

Ciba Specially Chemicals Canada, bic., 7030 Cenliiy Ave.. Mississauga, Ontario, L5N 2V8, Canada (Teh 905-812 7280 888-371-3422 FAX 905-821-8466 E-maih additive. canada cibasc.com)... 

EFKA Addfrives B.V., Member of the Ciba Specially Chemicals Group, PO Box 571,8440 AN Heerenveen, The Netherlands (Tet 31 513 657 500 FAX 31513 657 550 E-mait efka efka.eom Internet www.efka.com)... 

Ciba Speciality Chemicals [102] suggest (co)polymers of 2-propenoic acid esters as aldehyde-reducing additives, especially poly(glycidyl methacrylate). 

RA. Odorisio and S.M. Andrews, inventors Ciba Speciality Chemicals Corporation, assignee US7138457, 2006. 

R. Pfaendner, H. Herbst and K. Hoffmann, inventors Ciba Speciality Chemicals Holding AG, assignee US5693681, 1997. 

P.A. Odorisio, S.M. Andrews, D. Lazzari, D. Simon, R.E. King, M. Stamp, R. Reinicker, M. Tinkl, N. Berthelon, D. Muller and U. Hirt, inventors Ciba Speciality Chemicals Corporation, assignee US6908650, 2005. 

Ciba Speciality Chemicals have patented molecules which contain benzotriazole and hindered amine functional groups [60], e.g., 1(2-hydroxy-2-methylpropoxy-2,2,6,6-tetramethylpiperidin-4-yl)-3-(5-chlorobenzotriazol-2-yl)-5-tbutyl-4-hydroxycinnamate, and have also claimed their efficiency in PET, particularly in the form of fibres. 

Another newer version of HALS is exemplified by hydroxy-substituted N-alkoxy hindered amines, i.e., molecules with at least one active moiety of the structure >N-OR-(OH). A very wide range of such additives has been covered in a family of patents assigned to Ciba Speciality Chemicals [193-198], and claims for applications include aromatic polyesters. These additives are said to have as good as or better UV stabilising ability and antioxidant properties as the earlier HALS. The hydroxyl group(s) is said to impart additional advantages not possible with the NOR types, e.g., antistatic attributes, and better pigment dispersion in polar polymers. 

R. Ravichandran, S.D. Pastor, D. Judd, J.E. Babiarz, A.B. Naughton, M.G. Wood, A.D. Debellis, R. Xiang, R.E. Detlefsen and J. Snhadolnik, inventors Ciba Speciality Chemicals Holding AG, assignee US7244776, 2007. 

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