Ausimont S.p.a.

Montedison S.p.a.

Ausimont S.r.l.

Montefluos S.p.a.

Syremont S.p.a.

Consiglio Nazionale Della

Giovanni Moggi

Gianna Cirillo

Sergio Geri

Desiderata Ingoglia

Ezio Strepparola

Silvana Modena

Adolfo Pasetti

Liberato Mascia

Piergiorgio Bonardelli

Alberto Fontana

Daria Lenti

Graziella Chiodini

Franco Piacenti

Giuseppe Marchionni

Gerardo Caporiccio

Gianangelo Bargigia

Raffaele Ferro

Luciano Flabbi

Carlo Lagana

Enrico Monza

Claudio Monti

Fabio Costanzi

Mauro Aglietto

Alessandra Caratto

Enzo Benedetti

Cirillo: Gianna

Mauro Matteini

Vincenzo Massa

Manganelli Del Fa' Carlo

Andrea Scala

Giovanni Ceccato

Livio Mancini

Cinzia Di Fede

Carlo Manganelli Del Fa

Stefano Conti

Reversible polymer gels based on fluoroelastomers

Surface portions of metal materials, in particular artifacts which are of interest from historical, artistic or archeological perspectives, are protected from atmospheric agents and pollutants, and are re-aggregated, by reversibly applying a protecting and aggregating material comprising a copolymer of vinylidene fluoride having 55-85 mol % of vinylidene fluoride, 10-45 mol % of hexafluoropropene and 0-30 mol % of tetrafluoroethylene. Such polymers are applied onto the surface to be protected as solutions in volatile solvents.

Process for the protection and aggregation of metal materials of

The surface of lapideous materials, marble, sandstone, tiles, cement conglomerates and articles and structures manufactured therefrom are consolidated and protected against atmospherical and polluting agents by superficially applicating a mix composed of:

Process for protecting and consolidating lapideous materials

Surfaces of stone materials, marble, sandstone, bricks, concrete and articles manufactured therefrom are consolidated and protected from atmospheric agents and pollutants by applying onto said surfaces a mixture consisting of:

Process for protecting and consolidating stone materials

Fluoroelastomeric compositions peroxy-curable, endowed with improved characteristics of processability and compatibility, and with enhanced low-temperature properties, comprising, as additives, vinylidene fluoride cotelomers having the general formula:

Curable compositions based on fluoroelastomers vulcanizable with

The present invention relates to a process for protecting stone materials, marble, tiles and cement as well as articles manufactured from these materials from the decay caused by the atmospheric agents and pollutants. The process uses a mixture consisting of:

Process for protecting stony materials, marble, tiles, and cement from

The surfaces of stony materials, tiles, cement conglomerates and relevant manufactured articles are protected from atmospheric agents and pollutants by surface application of a protective material consisting of a mixture comprising a vinylidene fluoride polymer or copolymer containing 55-100 mol % of vinylidene fluoride, 0-45 mole % of hexafluoropropene and 0-30 mol % of tetrafluoroethylene and an aqueous microemulsion or emulsion of perfluoropolyethers. Such mixtures are applied by conventional methods onto the surface to be protected.

Process for protecting and consolidating stony materials

By means of radicalic starters, fluoroolefins are polymerized in the presence of perfluoropolyethers containing, at one or at both ends, a bromine atom, in such amounts that the weight ratio between the perfluoropolyethers and the fluorinated olefins in the resulting product ranges from 4/1 to 1/50. The bromine-containing perfluoropolyethers utilized in the process have a molecular weight from 400 to 10,000, and preferably from 600 to 8,000. The resulting polymeric products comprise sequences of perfluoroolefinic units and perfluoropolyether blocks.

Fluorinated polymers and copolymers containing perfluoropolyethers blocks

Process for the protection of stone materials, marble, bricks, and concrete, and of structures made from such materials, against the decay caused by atmospheric agents and pollutants, by applying to the surface of said materials or structures a mixture which is constituted by:

Process for the protection of stone materials, marble, bricks and

Vulcanizable compositions of fluoroelastomers based on vinylidene fluoride with one or more monomers containing an ethylene unsaturation and at least one fluorine atom, having improved processability and improved chemical stability, and comprising, as a processing coadjuvant, a mono- or dihydroxypolyfluoroether having a means molecular weight higher than or equal to 400 for the monohydroxypolyfluoroethers and higher than or equal to 2500 for the dihydroxypolyfluoroethers.

Vulcanizable compositions of fluoroelastomers having improved

Co-vulcanizable compositions comprising a fluoroelastomer (A) composed of from 40% to 85% by mol of vinylidene fluoride, from 15% to 35% by mol of perfluoropropene and from 0 to 30% by mol of tetrafluoroethylene; a copolymer (B) containing from 40% to 60% by mol of tetrafluoroethylene and from 40% to 60% by mol of propylene; and (C) a compound belonging to the class of bis-peroxydicarbamates.

Co-vulcanizable compositions of fluoroelastomers

Fluoroelastomer compositions vulcanizable with peroxides having improved processability and compatibility properties and comprising, as additives, ethylene polymers and ethylene-propylene or ethylene-butene copolymers having, along the polymer chain, ester groups of the type--COOR where R is a C.sub.1 -C.sub.8 alkyl, wherein the ester groups amount to 0.5-10% by weight as referred to the total polymer. Such polymer additives contain the ester group bound to a carbon atom of the chain either directly or through a --CH.sub.2 -- or in the form ##STR1## where R is a C.sub.1 -C.sub.8 alkyl group.

Compositions based on fluoroelastomers and on modified olefinic polymers

Co-vulcanizable compositions comprising (A) 55-85% by weight of a fluoroelastomeric copolymer of vinylidene fluoride with perfluoropropene and possibly tetrafluoroethylene; (B) 45-15% by weight of a copolymer of tetrafluoroethylene and propylene; (C) 0.7-2.5 parts, per 100 parts of the (A)+(B) blend, of a bisphenolic compound; (D) 0.3-1.5 parts, per 100 parts of the (A)+(B) blend, of a quaternary ammonium, phosphonium or aminophosphonium organic compound; (E) 0.4-5 parts, per 100 parts of the (A)+(B) blend, of an organic peroxide; (F) 1-5% by weight, as referred to (A)+(B), of a peroxidic cross-linking coagent.

Co-vulcanizable compositions of fluoroelastomers having improved

There are prepared compounds of general formula: ##STR1## wherein: R.sub.1 =H, or alkyl or acyl containing from 1 to 10 carbon atoms, R.sub.2, R.sub.3, like or unlike each other, may be H, or an alkyl containing from 1 to 10 carbon atoms and where R.sub.1 and R.sub.2 may form, together, an alkylene group containing from 2 to 10 carbon atoms, and optionally including up to 2 oxygen atoms in the chain, by means of addition reaction induced by radicalic starters of 1,2-dichlorodifluoroethylene to alcohols, ethers or esters of general formula: ##STR2## wherein: R.sub.1, R.sub.2, R.sub.3 are defined as above.

Process for preparing adducts of alcohols, ethers and esters with

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Milan, Italy

Giovanni Moggi