Montedison S.p.a.

Larac S.p.a.

Syremont S.p.a.

Montecatini Edison S.p.a.

Paolo Parrini

Vittorio Ciaccia

Ennio Cozzi

Giuseppe Pizzigoni

Gian P Righi

Franco Federici

Guglielmo Corrieri

Catia Bastioli

Paolo Galli

Lino Credali

Giuseppe Gianotti

Adriano Mattera

Domenico Lori

Giuseppe Peroni

Mario Milano

Low molecular weight non-film forming fluorinated polyurethanes having a hydroxy functionality obtained from the reaction of at least one diisocyanate with at least one hydroxy-capped perfluoropolyether having a molecular weight within the range of from greater than 1,000 to 5,000 and with at least one polyol with a functionality of at least 2.

Fluorinated polyurethanes with hydroxy functionality, process for

Improved compositions for the sulphation-removing cleaning of lithoidal surfaces of prevailingly carbonatic nature, or of layers of such nature on different materials, comprising a mixture of an anion-exchange material (e.g., an anion-exchange resin) with an aqueous solution of ammonium carbonate and/or bicarbonate, and a filler selected from the group consisting of powders and/or fibrils of hydrophilic materials.

Compositions for the sulphation-removing cleaning of carbonatic

Water-dilutable fluorinated polyurethanes obtained from the reaction of at least one diisocyanate with at least one hydroxy-capped perfluoropolyether having a molecular weight comprised within the range of from 400 to 7000 with at least one polyol with a hydroxy functionality higher than, or equal to, 2, supporting at least one ionizable group and therefore with at least one hydroxy compound with a functionality of at least 1. Use of these products in the treatment of lithoidal products.

Water-dilutable fluorinated polyurethanes, process for preparing them

Compositions for the desulphatizing cleaning of stone surfaces of prevailingly carbonatic nature or of layers of such nature on different materials, consisting of a mixture of an anion exchange material (for instance an anionic exchange resin) with an aqueous solution of ammonium carbonate and optionally with additives.

Composition for the desulphatizing cleaning of carbonatic stone surfaces

Polyolefin fibers, which are suited for at least partially substituting the cellulose fibers in the manufacture of paper, are produced by a process which consists in preparing in a pressure vessel a solution of a polyolefin at a temperature higher than the boiling temperature of the solvent under normal conditions, and under autogenous pressure or a pressure greater than the autogenous pressure, in ejecting said solution under the above stated conditions into a zone of lower pressure, in allowing the ejected solution to expand at least partially in said zone, and in then hitting the at least partially expanded solution with a jet of a high-speed fluid, which is at a temperature lower than that of the solution, and has an angled direction with respect to the direction of ejection of the solution.

Process for the preparation of fibers from polymeric materials

Moisture-resistant packing cardboard of the corrugated type is prepared from flat paper sheets formed from 10% to 90% by weight of cellulose fibers and from 90% to 10% by weight of fibrils of at least one thermoplastic polymer and having a surface area greater than 1.0 m.sup.2 /gm, by heating the sheets under pressure on an undulated surface and coupling the resulting corrugated or undulated sheets with one or more flat sheets to which the corrugated sheet is adhered through the tips of the corrugations or undulations.

Process for preparing moisture-resistant packing cardboard

Process for preparing poly-piperazinamide, anisotropic shaped articles comprising the preparation of the polymer solution in a polar organic solvent, the transformation of the solution into shaped bodies by spreading or spinning, the gelation of the shaped articles by phase inversion, and, optionally, the heat treatment of the gellified shaped articles.

Process for preparing poly-piperazinamide anisotropic shaped articles

Formed structures comprising synthetic thermoplastic fibrils or fibrids having a surface area (specific surface) higher than 1 m.sup.2 /g and useful for soundproofing purposes are provided. Methods for making the structures are also disclosed.

Formed structures based on synthetic fibers and having soundproofing

Permanently embossed, highly porous wallpapers are produced by preparing a sheet from a mixture of up to 90% by weight of cellulose fibers and at least 10% by weight of fibrils of at least one thermoplastic polymer, and subjecting the sheet, in any order, to the following operations:

Preparing permanently embossed, highly porous wallpapers

There are disclosed fibrous materials useful as leather substitutes and consisting essentially of the combination of leather fibers, cellulose fibers and fibrils or fibrides of synthetic polymers having a surface area larger than 1 m.sup.2 /g.

Growing community of inventors

Novara, Italy

Paolo Parrini