Basf Se Corporation

Ciba Corporation

Deepak M Rane

Paul A Odorisio

Stephen Mark Andrews

Thomas Friend Thompson

Si Wu

Paragkumar Thanki

Jianzhao Wang

Delina Joseph

Frank Bachmann

Hans Kramer

Wolfgang Schlenker

Preetam Ghogale

Carmen Araya Hernandez

Paul Angelo Odorisio

The present invention relates to a laundry shading process with specific blue or violet bisazo-dyes alone or in combination with a photocatalyst. Further aspects of the invention are a composition comprising at least one photocatalyst and at least one of the specific bisazo-dyes. The composition is particularly useful for shading textiles during laundry. Further aspects of the invention are a detergent composition, a fabric softener composition containing these dyes or mixtures of these dyes and photocatalysts and novel blue or violet bisazo-dyes.

Dyes and blends for shading during laundry

Disclosed are phosphinic acid compounds of formula I, II or III where Rand R' are for instance straight or branched C-Calkyl, Ris for instance straight or branched C-Calkyl, Rand R&#x2032; are for instance straight or branched C-Calkyl, Ris for instance straight or branched C-Calkylene and m is from 2 t 100. Also disclosed are polyester compositions comprising the compounds of formula I, II and III.

Solid state polymerization process for polyester with phosphinic acid compounds

Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C-Cdicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

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Maharashtra, India

Deepak M Rane