Patent application number | Description | Published |
20110233102 | USE OF A MATERIAL BASED ON A THERMOPLASTIC POLYMER HAVING A HIGH CONTENT OF ANTIOXIDANTS FOR PACKAGING DIANHYDROHEXITOLS - The present invention relates to the use of a packaging material based on a thermoplastic polymer for packaging a dianhydrohexitol, the packaging material comprising at least one thermoplastic polymer layer containing at least 0.1% by weight of at least one antioxidant (layer (A)), said layer (A) either being directly in contact with the dianhydrohexitol or being separated from the latter by a thermoplastic polymer layer (layer (B)) having a thickness at most equal to 150 μm, and the thermoplastic polymer of the layer (A) and/or of the layer (B) being chosen independently from polyethylene, polypropylene, ethylene/polypropylene copolymers and blends of the latter. | 09-29-2011 |
20130281718 | HIGH-FLUIDITY NON-CAKING DIANHYDROHEXITOL PELLETS - Dianhydrohexitol pellets, whose fluidity is preserved even after lengthy storage, include between 90% and 100%, preferably between 95% and 100%, and more preferentially between 97% and 100% of dianhydrohexitols by weight, on a dry weight basis, and have the particularity of not being subject to caking. A process for preparing the dianhydrohexitol pellets is also described. | 10-24-2013 |
20140031516 | PROCESS FOR MANUFACTURING POLYCARBONATE FROM DERIVATIVES OF DIANHYDROHEXITOLS BEARING TWO ALKYL CARBONATE FUNCTIONS - A process for manufacturing polycarbonate includes:—a step (1) of introducing into a reactor a particular composition (A) of at least one dianhydrohexitol carbonate bearing two alkyl carbonate functions; a step (2) of introducing a diol or a mixture of diols (B); a subsequent step (3) of polycondensation by transesterification of the mixture of monomers including (A) and (B); a step (4) of recovering the polycarbonate formed during step (3). | 01-30-2014 |
20140031517 | PROCESS FOR MANUFACTURING POLYCARBONATE FROM DIANHYDROHEXITOL DIALKYLCARBONATE - A process for manufacturing a polycarbonate, having a glass transition temperature greater than or equal to 50° C., includes: ▪ a step (1) of introducing into a reactor a monomer of formula (I) and R1 and R2 being identical or different alkyl groups; ▪ a step (2) of introducing into the reactor at least one cyclic diol or a mixture of diols (B) including at least 20 mol % of cyclic diols; ▪ a subsequent step (3) of polycondensation via transesterification of the mixture of monomers including the monomers (A) and (B); ▪ a step (4) of recovering the polycarbonate formed during step (3). | 01-30-2014 |
20140158562 | PACKAGED DIANHYDROHEXITOLS HAVING HIGH CHEMICAL STABILITY - A dianhydrohexitol packaged in a packaging material that is impervious to gas, wherein the partial pressure of oxygen inside the packaging is 0.1 to 10 mbar, preferably 0.5 to 5 mbar, and more preferably 0.5 to 2 mbar. The method for packaging dianhydrohexitol, includes inserting the dianhydrohexitol into a packaging material that is impervious to gas, and then hermetically sealing the packaging, the method being carried out in an atmosphere that has a partial pressure of oxygen of 0.1 to 10 mbar, preferably 0.5 to 5 mbar, and more preferably 0.5 to 2 mbar. | 06-12-2014 |
20150125613 | PLASTICISER COMPOSITIONS COMPRISING GELIFICATION ACCELERATORS BASED ON ESTER(S) OF 1,4 : 3,6-DIANHYDROHEXITOL HAVING LOW MOLAR WEIGHT - Disclosed is a composition that can rapidly plasticise polymers, including, in relation to the total mass of (A) and (B): between 0.1 and 99 mass-% of at least one ester of 1,4:3,6-dianhydrohexitol (A), having a molar mass varying between 255 and 345 g·mol | 05-07-2015 |
20150183796 | METHOD OF SYNTHESIS OF A COMPOSITION CONTAINING AT LEAST ONE INTERNAL DEHYDRATION PRODUCT OF A HYDROGENATED SUGAR BY HETEROGENEOUS CATALYSIS - A simple, low cost, environmentally friendly and sustainable process for the production of internal dehydration products of hydrogenated sugar, implementing trivalent metal phosphate (metal (III) phosphates) as catalysts during the dehydratation step. | 07-02-2015 |
20150291614 | METHOD FOR PRODUCING COMPLEX COMPOSITIONS OF MIXED DIESTERS OF 1,4: 3,6- DIANHYDROHEXITOL - A method for producing a composition of diesters of 1,4:3,6-dianhydrohexitol, characterised in that it includes a step including the esterification of 1,4:3,6-dianhydrohexitol by a composition of carboxylic acids, the composition of carboxylic acids including: at least an acid having formula C7H15COOH (X) and an acid having formula C9H19COOH (Y), the mass ratio (X)/(Y) varying between 10/90 à 90/10; at least one acid having a formula different from (X) and (Y), selected from among hexanoic acid, lauric acid, myristic acid, oleic acid or linoleic acid. | 10-15-2015 |