(EN) NOVEL INULIN FRACTIONS, PREPARATION AND USE

Patent (2001)

The invention concerns novel inulin fractions, characterised by endothermal peaks of differential calorimetric analysis and by domains of polymerising degree, methods for obtaining said fractions by ... [more ▼]

The invention concerns novel inulin fractions, characterised by endothermal peaks of differential calorimetric analysis and by domains of polymerising degree, methods for obtaining said fractions by fractionating solutions, solutions saturated or dispersed with inulins, hydrocolloidal compositions and gels obtained with said fractions, and uses of said fractions in food composition or the like. [less ▲]

Cyclic esterketone compounds, processes for the synthesis thereof and process for the preparation of poly(esterketone)polymers

Patent (2000)

Unsubstituted oxepane-diones useful as monomers for the production of polymers, process for the synthesis thereof by oxidation of unsubstituted cyclohexanediones, process for the preparation of ... [more ▼]

Unsubstituted oxepane-diones useful as monomers for the production of polymers, process for the synthesis thereof by oxidation of unsubstituted cyclohexanediones, process for the preparation of polyesterketone polymers by polymerisation of cyclic esterketones and polyesterketone polymers so obtained. [less ▲]

Process for the preparation of a catalyst and its use for the conversion of chloroalkanes into alkenes containing less chlorine

Patent (2000)

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes ... [more ▼]

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst. [less ▲]

SUSTAINED RELEASE PHARMACEUTICAL TABLETS WITH TRAMADOL BASE AND THEIR PREPARATION

Patent (1999)

Pyrido 1,2,4-thiadiazine derivatives, their preparation and use

Patent (1999)

Derivatives of 2,5- and 3,5-disubstituted anilines, their preparation and use

Patent (1999)

Coumarin derivatives, methods of preparation and application as medicines

Patent (1998)

Process for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers

Patent (1998)

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C ... [more ▼]

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C., in the presence of an initiation system including: at least one compound generating radicals, other than bromofluorene, and at least one catalyst consisting of a complex of palladium in the 0 oxidation state, denoted by the following formula (I): Pd(0)L1L2L3L4 in which each of L1, L2, L3 and L4, which are identical or different, denotes a ligand which may be a chiral ligand, which is chosen from PRR'R'', P(OR)(OR')(OR''), NRR'R'', ORR', SRR', SeRR', AsRR'R'', SbRR'R'', where each of R, R' and R'' independently denotes a C1-C14 alkyl group, optionally substituted, or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined to one another by one or more divalent radicals. [less ▲]

Method of free radical polymerization of copolymerization of (meth)acrylic and vinyl monomers under control and (co)polymer produced thereby

Patent (1998)

PROBLEM TO BE SOLVED: To obtain a (co)polymer excellent in resistance to thermal decomposition by polymerizing or copolymerizing a monomer or monomers in the presence of an initiation system contg. a free ... [more ▼]

PROBLEM TO BE SOLVED: To obtain a (co)polymer excellent in resistance to thermal decomposition by polymerizing or copolymerizing a monomer or monomers in the presence of an initiation system contg. a free-radical generator other than a bromoolefin and a catalyst comprising a Pd complex having an oxidation number of 0 and represented by a specific formula. SOLUTION: A Pd salt (e.g. Pd acetate), a ligand (e.g. triphenylphosphine), and a solvent (e.g. toluene) are charged into a reactor to form a Pd complex having an oxidation number of 0 and represented by the formula: Pd(0)L<1> L<2> L<3> L<4> [wherein L<1> to L<4> are each a ligand such as PRR'R'' (wherein R, R', and R'' are each 1-14C alkyl, etc.)]. Then, a monomer (e.g. methyl methacrylate) is added to the reactor followed by the addition of a free-radical generator (e.g. CCl4 ) in a molar ratio of Pd to the generator of 0.01-100.; The contents in the reactor are heated to 40-90 deg.C and stirred for a certain time to conduct the polymn. The reaction mixture is diluted with toluene, etc., filtered, and condensed under a reduced pressure. The resultant polymer soln. is poured into methanol, etc., and the resultant precipitate is filtered, washed, and dried to give a polymer having a number average mol.wt. of 400-10,000,000g/mol and a polydispersity lower than 2. [less ▲]

Process for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

Process for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

1,2,4-Benzothiadiazine derivatives, their preparation and use

Patent (1997)

Pyrido 1,2,4-thiadiazine and pyrido-1,4-thiazine derivatives, their preparation and use

Patent (1997)

Transition metal aerogel-supported catalyst

Patent (1996)

A process for preparing a supported catalyst comprising a transition metal selected from palladium, platinum, nickel, cobalt or copper on an aerogel support, which includes the steps of providing a ... [more ▼]

A process for preparing a supported catalyst comprising a transition metal selected from palladium, platinum, nickel, cobalt or copper on an aerogel support, which includes the steps of providing a mixture containing an alkoxide precursor of the aerogel, a chelate complex of the transition metal with a chelating agent having Si(OR)3 anchor groups, and an organic solvent in which the chelate complex is soluble; hydrolyzing the mixture by admixing it with water to form a gel; and converting the gel under supercritical conditions into the transition metal aerogel-supported catalyst. The supported catalyst has an especially homogeneous distribution of the metal component and is suitable, for example, for use as a hydrogenation catalyst. [less ▲]

Pyridothiadiazines, processes for their preparation and pharmaceutical compositions containing them.

Patent (1994)

Utilisation de prodelphinidines pour le traitement de l'arthrose

Patent (1994)

The subject of the invention is the use of prodelphinidins for obtaining medicaments intended for the treatment of articular pathologies associated with the destruction of the cartilage, and more ... [more ▼]

The subject of the invention is the use of prodelphinidins for obtaining medicaments intended for the treatment of articular pathologies associated with the destruction of the cartilage, and more particularly of arthrosis. [less ▲]

PROCEDE ET DISPOSITIF DE PERMEABILISATION DE CELLULES VIVANTES

Patent (1991)

A method and a device for making cell membranes permeable using electrical discharges (electroporation), wherein at least one short electrical discharge is applied to a suspension containing cells to be ... [more ▼]

A method and a device for making cell membranes permeable using electrical discharges (electroporation), wherein at least one short electrical discharge is applied to a suspension containing cells to be made permeable and molecules to be accommodated therein, in order to generate in said suspension a high-value electric field, whereafter at least one longer electrical discharge is applied thereto to generate a lower-value electric field therein. [less ▲]

Modified human growth hormone

Patent (1990)

Protein derived from human growth hormone (hGH), which no longer has the first two amino acids of the natural hypophysial hormone at the terminal end of the amino acid, retaining its main biological ... [more ▼]

Protein derived from human growth hormone (hGH), which no longer has the first two amino acids of the natural hypophysial hormone at the terminal end of the amino acid, retaining its main biological activity of bone and somatic growth stimulation, but no longer having the transitory and diabetogenic insulin effects generally observed when administering hGH. Said modified growth hormone protein can be used for therapeutic purposes, in particuliar for treating clinical cases where the effects of the growth hormone sugars on the metabolism are to be avoided: patients suffering from cachexia, new-born babies and the elederly. [less ▲]

Procédé et dispositif pour l'introduction d'éléments de renforcement dans un bain de métal fondu (page 17)

Patent (1990)

MICROPARTICLES COMPRISING A BIODEGRADABLE POLYMER CONTROLLING THE RELEASE OF AN ANTIMALARIAL DRUG, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND PROCESS FOR THEIR PREPARATION

Patent (1989)

Procédé de fabrication d’un matériau composite

Patent (n.d.)