Ciba-geigy Corporation

Colin D Campbell

Robert Langley

Eric K Baylis

John G Dingwall

James M McCrae

Michael A Finan

Kenneth W Shelton

Ian A Lambie

Paul I Yarrow

Terence R Chamberlain

Pyrazole derivatives of a variety of polycyclic pigments, particularly quinacridone pigments, corresponding to the general formula ##STR1## wherein Q is the primary pigment structure; and the use of such derivatives as additives to pigment systems to provide a broad range of performance benefits to the resulting pigment compositions.

Pyrazole-containing pigment derivatives

A pigmented thermoplastic resin composition comprising:

Resin compositions

The present invention provides a process for the production of dimethylaminomethyl copper phthalocyanine having an average of 1 to 4 dimethylaminomethyl groups per molecule which comprises reacting aminomethyl copper phthalocyanine having an average of 1 to 4 aminomethyl groups per molecule with formaldehyde and aqueous formic acid at a concentration of 2 to 60%, at atmospheric pressure, and at an elevated temperature.

Production of dimethylaminomethyl copper phthalocyanine

The invention provides compounds having the formula I or II ##STR1## and their salts and hydrates, having high value as intermediates for dyestuff additives for pigment compositions and as intermediates for metal-containing pigments.

3,3'-Dichloro-4,4-diaminodiphenyl sulfonic acids

Agent for influencing plant growth, in particular a herbicidal and plant growth-inhibiting agent containing in addition to carriers and/or other additives, at least one compound of the formula: ##STR1## in which R is hydrogen an alkyl group having from 1 to 5C atoms, which is unsubstituted or substituted by hydroxyl, salts thereof with either strong monobasic or polybasic acids or with inorganic or organic bases, or optical isomers thereof, as the active component.

Agent and method for influencing plant growth

A compound having the formula ##STR1## wherein A denotes an optionally substituted aromatic, isocyclic or heterocyclic residue; R is H, an alkyl residue having from 1 to 6 carbon atoms, an aryl residue having from 6 to 10 carbon atoms or an aralkyl residue having from 7 to 10 carbon atoms; Q is H or a methyl group; X and Y are the same or different and each is a non-water solubilizing group, or X and Y together form a fused aromatic ring system; and R.sub.1 and R.sub.2 are the same or different and each is H or an alkyl radical having from 1 to 22 carbon atoms, and R.sub.3 is hydrogen, an alkyl radical having from 1 to 22 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, the alkyl radicals in R.sub.1, R.sub.2 and R.sub.3 being unsubstituted and uninterrupted or being substituted by an OH, NH.sub.2 or CN group and/or being interrupted by an ethylenic group or an oxygen, sulphur or nitrogen bridge, or two or all three of R.sub.1, R.sub.2 and R.sub.3 may form, together with the nitrogen atom to which they are attached, a heterocyclic residue, is useful for pigmenting high molecular weight organic material such as a natural or synthetic polymer or copolymer, or a coating composition for application to the surface of an article, or a printing liquid medium to yield shades from greenish yellow to red brown, exhibiting good fastness properties.

4-Hydroxyquinolone-(2)-azomethine copper complex pigments

The present invention relates to new phosphonous acid derivatives, especially to .alpha.-amino-phosphonous acids and processes for their production. The new phosphonous acids are valuable chemotherapeutica in the treatment of pathogenic bacteria, gram-negative bacteria and yeast.

.alpha.-Amino-phosphonous acids for inhibiting bacteria and yeast

Oxo-polycarboxylic acids act as set control agents, preferably as set retarders for plasters. Examples of usable acids are 2,2,6,6-tetra(.beta.-carboxyethyl)cyclohexanone, 2,2-di(.beta.-carboxyethyl)-3,5,5-trimethylcyclohexanone or 3-acetyl-3(.beta.-carboxyethyl)-pimelic acid. Also the salts of these acids are usable. The set control agents are added to the plaster in amounts of 5 to 5000 ppm.

Growing community of inventors

Beith, United Kingdom

Colin D Campbell