Institut Textile De France

Centre Technique Industriel Dit: Institut Textile De France

Biomerieux, Inc.

Saint-gobain Recherche

Rhovyl

Probiotec (sarl)

Institut Textile De France-centre Technique Industriel

Institut Textile De France and Bio Merieux

Centre Technique Industriel Styled: Institut Textile

Institue Textile De France

Roger Chatelin

Louis Gavet

Daniel Wattiez

Michel Bourgeois

Daniel Monget

Patrick Gayrine

Catherine Fitzer-Couturier

Michel Sotton

Thierry Pollet

Annie Giorgio

Jean-Francois Combes

Jacques Poulenard

Philippe Laurent

Georges Achard

Robert Guigal

Francois Belet

Michel Mazet

Isabelle Rigaudie

Christine Darroux

Method for adsorbing antimicrobial agents contained in a biological

Device for the physicochemical separation of constituents of a fluid

According to the invention, the treatment process for imparting flame retardancy consists in grafting a textile material containing nitrogen atoms in its polymeric structure, especially silk, with a phosphoric acid ethyenic ester of the general formula ##STR1## in which R.sub.1 is selected from the group comprising H and alkyls and R.sub.2 is selected from the group comprising alkylenes and alkylene oxides and/or polyalkylene oxides, for example phosphated ethylene glycol methacrylate, the grafting rate being less than or equal to 20%.

Process for imparting flame retardancy to textile materials

A grafting reaction system comprises an activated polymer and a grafting medium containing a monomer, with the system containing free radicals. The system further comprises 0.1 to 2% by weight of the grafting medium and monomer of a homopolymerization inhibitor compound, the inhibitor compound comprising a compatabilizing function toward the grafting medium which is selected from the group consisting of sulfonic, carboxylic and phenolic groups, and an inhibiting function which acts as a transfer agent for the free radicals, the inhibiting function being an allyl-type unsaturated group. The inhibitor compound has a diffusing capacity through the grafting medium which is greater than its diffusing capacity through the polymer.

Grafting reaction system and grafting process

According to the invention the material, in particular a textile, includes in its polymeric structure grafts forming complexes with at least one metal ion possessing recognized antiseptic activity. These grafts are formed by polymerization of unsaturated monomers with a complexing function, including the phosphate of ethylene glycol methacrylate or a polymerizable derivative of quinoline such as acryl 8-hydroxy quinoline. The process of preparation comprises a first step of grafting, for example by electronic irradiation of the material and impregnation with a bath of monomer, and a second step of impregnation of the grafted material with one or serveral baths containing the metal ion(s), such as copper, zinc, tin, mercury.

Antiseptic material with grafts complexed by metal ions and process for

The invention relates to the use of grafted celluloses, in fibrous form, particularly paper, non-woven web, flock, yarn, woven fabric, comprising quaternary ammonium functions, for eliminating humic substances and nitrates contained in natural water or industrial sewage. The grafted cellulose is for example obtained by radical grafting with the aid of a non-saturated monomer with quaternary ammonium function, particularly quaternized diethyl-amino-ethyl methacrylate. Its capacity is greater than or equal to 0.2 meq/g.

Use of grafted cellulose for purifying water

The fibrous polymeric material based on polyvinyl chloride contains at least one antiseptic mercury derivative distributed in its polymeric structure in the form of a substantially molecular and practically non-releasable dispersion. The preferred mercury derivatives have the following general formula: ##STR1## in which Y is H or HgX. If the concentration of the derivative is equal to at least 0.5% by weight, relative to the chlorofiber, the latter has a permanent antiseptic character. This material is obtained by incorporating the above-mentioned derivative into the collodion when the chlorofiber is spun.

Chlorofibers with permanent antiseptic character and process for their

The device comprises at least one element for immobilizing certain molecules contained in the medium to be tested. According to the invention, the immobilizing element is in the form of a hydrophilic material fixed on the surface of a plane hydrophobic material, such as for example viscose fibers (2) implanted by flocking into a sheet (3) of polyvinyl chloride. The device (4) further comprises:

One-use device for biological tests

The novel antiseptic mercurial derivatives according to the invention have at least one benzene ring and comprise: a) at least one radical HgX in which X is selected from F,Cl,Br, I, OH, CH.sub.3 COO, CN, SCN, NO.sub.3, OB(OH).sub.2, b) and, bonded to a benzene ring, at least one group--OR or--COOR in which R is a functional group capable of intervening in a reaction of polymerization or of polyaddition. The preferred derivative is 2-chloromercuri 4-tertiobutyl phenol allyl-ether. They may intervene in grafting reactions for the protection of a polymeric support, or in reactions of copolymerization.

Novel organic mercurial derivatives with antiseptic character

The invention consists in making an emulsion of a fluorinated product, in the presence of a derivative of morpholine. The derivative of morpholine may be the morpholine itself, a saturated derivative or a non-saturated derivative, for example morpholinoethyl methacrylate. The fluorinated product may be a fluorinated monomer, for example 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate. Placing in emulsion is effected by adding to the fluorinated product the derivative of morpholine in the presence of a surface-active agent, and by adjusting, with mechanical stirring, the desired quantity of liquid.

Emulsions of fluorinated products

The grafting reaction according to the invention occurs after having impregnated the polymeric material, on which were previously created free radicals by activation within an emulsion containing the fluorinated monomer and a graftable derivative of the morpholine. The preferred reagents are morpholinoethyl methacrylate and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate. The invention is applicable to the waterproofing of textile articles, particularly made of cotton, silk, linen. The material thus grafted is waterproof when cold, but when hot, it may be washed, dyed or printed by transfer.

Grafting process, ensuring waterproofing, of a polymeric material by a

The invention relates to a process for the grafting of unsaturated monomers to the surface of glass substrates. The process comprises applying to the glass substrates a solution comprising a silane having a double ethylene bond, contacting the products thus coated with an atmosphere formed by a mixture of ozone and oxygen, and placing these coated products in contact with an unsaturated organic monomer. The monomer may be added in the form of a solution, an emulsion or a suspension. The products thus obtained may have a number of technical applications.

Process for grafting unsaturated organic compounds to glass products

The process consists firstly in adding, to the solution, an excess of a polyelectrolyte capable of forming an ionic association with the dissolved substance which it is desired to retain, and then in bringing the solution thus obtained into contact with a material possessing ionic groups which retain the polyelectrolyte by virtue of its ionic groups not associated with the said substance. The solution and the material can be brought into contact either by filtration or by tangential bathing. The polyelectrolyte can be retained either by ion exchange or by a charge repulsion effect. The material is advantageously a fibrous material of which the ionic groups are obtained by grafting.

Process for the retention of a substance dissolved in a solution

New mercurobutol derivatives characterized in that they comprise at least one functional group, bonded to the mercurobutol phenol ring, which functional group being capable of intervening in a polymerization or polyaddition reaction, and said derivatives having the bioactive properties of mercurobutol, even after such reaction. These new derivatives can intervene in a grafting operation either as termination agent or a polymerization agent. These new derivatives, when grafted on a support, give it protection against bacteria, mushrooms and other micro-organisms.

Growing community of inventors

Lissieu, France

Roger Chatelin