Ausimont S.p.a.

Montedison S.p.a.

Enimont Augusta Industriale S.r.l.

Enichem Augusta Industriale S.r.l.

Ausidet S.r.l.

Ausidet S.p.a.

Enimont Augusta Industriale

Claudio Troglia

Claudio Cavallotti

Corrado Brichta

Giancarlo Barbero

Giancarlo Bressan

Gilberto Nucida

Ugo Piero Bianchi

Roberto Garaffa

Paolo Colombo

Angelo Tentorio

Pier D Mattioli

Valentino Zamboni

Giuseppe Muratori

Santina R Verzellino

Fabio Pastorello

Water-based dispersions of the &egr;-phthalimido peroxyhexanoic acid comprising as stabilizers copolymers of methyl-vinyl-ether with the acid and/or maleic anhydride, in 1:1 ratio with alternated structure, usable in detergent, hygienizing, cosmetic applications.

Water based dispersions of percarboxylic acids

Granular compositions comprising .di-elect cons.-phthalimido peroxyhexanoic acid (PAP), a N-oxide of a tertiary amine surfactant and an organic acid with PK.sub.a lower than 3.5 and soluble in water at most for 1% by weight at a temperature of 20.degree. C.

Granular compositions of .di-elect cons.-phthalimido peroxyhexanoic acid

Purification process of imido-alkancaboxylic acids from contaminants represented by acid-carboxylic, lactam or aminoacids and water comprising:

Preparation of solutions of imido-alkancarboxylic acids suitable for

Process for reducing the content of water in imido-alkanpercarboxylic acids comprising heating a suspension of imido-alkanpercarboxylc acid in water up to the complete solid melting and subsequent separation of the organic phase from the aqueous phase and recovery of the organic phase containing the imido-alkanpercarboxylic acid.

Process for reducing water and polar impurities in

Cross-linkable polymer compositions of an olefinic polymer modified by an unsaturated silane bearing hydrolyzable groups and a zeolite, wherein the zeolite is an adduct of a zeolite in finely divided form having a water content not higher than 3% by weight modified at a temperature of at least 150.degree. C. with at least one carboxylic and/or sulfonic organic acid.

Cross-linkable polymeric compositions, process for their preparation and

A process for separating phthalimido-peroxycaproic acid (PAP) from solutions in organic solvents, wherein the organic solvents have a solubility in water equal to or lower to 10% by weight, is provided. The process employs the following steps: (a) dispersing the solution in an aqueous medium to form a suspension; (b) bubbling an inert gas into the resulting suspension; and (c) recovering PAP from the suspension.

Process for separating phthalimido-peroxycaproic acid from solutions in

Process for purifying phthalimido-peroxycaproic acid (PAP) from chlorinated solvents, by dissolving it in a polar and volatile solvent selected from alcohols, ketones and aliphatic esters, and a following crystallization thereof and solvent stripping. Preferred solvents are aliphatic esters, in particular ethyl acetate.

Process for purifying phthalimidoperoxycaproic acid (PAP) in order to

This invention relates to aqueous suspensions of water-insoluble inorganic materials on a silica basis and insoluble in water, which are in finely subdivided form, stabilized with at least one organic polymeric material constituted by a partially crosslinked acrylic polymer or copolymer.

Stable aqueous-suspensions of inorganic materials on silica basis and

Nucleants for thermodegradable crystalline polyolefines made up of zeolitic molecular sieves modified with at least one arylcarboxylic acid. These nucleants may be added before or during the macroradicalic degradation of the polyolefines and allow products having a high degree of nucleation to be obtained.

Zeolitic nucleants for crystalline polyolefines modified by means of

Aqueous suspensions of a silica-based inorganic material insoluble in water and in a finely subdivided form, stabilized with at least one organic polymeric compound containing hydroxylic groups and with an ammonium or phosphonium quaternary compound of the formula: ##STR1## wherein: B is nitrogen or phosphorus; A is either mono or polyvalent anion, while A.sub.1.sup.- is SO.sub.3.sup.- or COO.sup.-.

Stable aqueous suspensions of inorganic silica-based materials insoluble

Self-extinguishing polymeric compositions are taught comprising, expressed in % by weight referrred to the total composition:

Self-extinguishing polymeric compositions

Transesterified copolymers of maleic anhydride, particularly useful in the field of detergency and anti-scaling agents, obtained from preformed copolymers of maleic anhydride with vinyl acetate, by at least partial transesterification of said preformed copolymers.

Transesterified copolymers of maleic anhydride, particularly useful in

The synthesis of zeolites 4A having a high crystallinity and a fine granulometry is disclosed, by the addition in a first stage of a sodium silicate solution to a sodium aluminate solution (containing an excess of NaOH and heated to a temperature of from 50.degree. to 100.degree. C.), and by the crystallization in a second stage at a temperature of from 70.degree. to 105.degree. C., characterized in that the temperature of the sodium silicate solution is lower by at least twenty Centigrade degrees than that of the sodium aluminate solution, the molar ratios SiO.sub.2 :H.sub.2 O and SiO.sub.2 :Na.sub.2 O in the sodium silicate solution being respectively from 0.030 to 0.150 and from 1.95 to 2.30, and the weight ratio between the reaction mother liquor and the zeolite thus formed being from 6.5 to 20.

Process for the manufacture of zeolites 4A having a high crystallinity

The kinetics of crystallization of high polymers from the molten state is modified by adding to the polymers before the thermoforming step low amounts of a nucleating agent consisting of solid particles of crystalline zeolites treated with high-boiling acrylcarboxylic acid or sulphonic acid.

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Milan, Italy

Claudio Troglia