摘要:
The invention relates to a method for the hydroformylation of triglycerides by homogeneous catalysis in the presence of at least one substituted cyclodextrin, said method comprising a step a) of combining, under agitation, at least one catalyst, water, at least one unsaturated triglyceride and said substituted cyclodextrin, in the presence of gaseous hydrogen and carbon monoxide, said step being carried out in reactive conditions allowing the formation of an emulsion during the agitation and a decanting of the products once the agitation has stopped.
摘要:
According to one embodiment, the invention relates to a method for synthesising a second ester from a first ester, said method including the following steps: a) placing a first ester and a catalyst in the presence of dihydrogen such as to obtain a first alcohol and a second alcohol; b) extracting said second alcohol from the reaction medium; c) reacting said first alcohol with the catalyst of step a) in order to obtain a second ester and dihydrogen; and d) recirculating the dihydrogen obtained in step c) by injecting same into step a).
摘要:
Procédé de fabrication d'une pièce en plastique pour véhicule automobile, ledit procédé comprenant l'étape suivante : a) une étape de mise en forme d'un matériau comprenant un mélange homogène d'un polymère thermoplastique et d'un phosphite pour obtenir une pièce ayant une surface ; et b) une étape de flammage de tout ou partie de ladite surface. L'invention porte également sur l'utilisation d'un phosphite pour la fabrication de pièces en plastiques et notamment de pièces automobiles ainsi que sur une composition comprenant au moins un polymère thermoplastique et au moins un phosphite.
摘要:
A drop-in cooking device for installation into an opening in a fixture, including a housing configured to be mounted in the opening in the fixture, a heating element positioned in the housing, and a cover attachable to the housing adjacent the heating element, the cover comprising a thermally insulating material and having a collapsible portion, wherein the collapsible portion of the cover has a working configuration in which the cover has a first height and a storage configuration in which the cover has a second height, the second height being less than the first height.
摘要:
The invention relates to a salt substitute which includes, in combination with sodium chloride: 72 to 87 wt % of potassium chloride, 10 to 20 wt % of magnesium sulfate, and 3 to 8 wt % of calcium sulfate. Said mineral compounds are typically of marine origin. The invention also relates to the uses of the salt substitute according to the invention as table salt or for the commercial preparation of foodstuffs for humans and/or animals which provide the same technical functions as salt. The invention also relates to a method for manufacturing a salt product as well as to foodstuffs that include the salt substitute.
摘要:
La présente invention concerne un polyester polyéther polyol susceptible d'être obtenu par la polycondensation d'un polyol ayant réagi avec un oxyde d'éthylène, d'un polyacide et/ou un anhydride d'acide cyclique, et éventuellement d'un monoacide. Elle concerne également un procédé d'obtention d'un polyester polyéther polyol et son utilisation dans la fabrication de polyuréthanes. Le polyester polyéther polyol préparé à partir d'un polyol, d'un polyacide et/ou d'un anhydride d'acide, et éventuellement d'un monoacide, renouvelables comporte au moins 90% de fonctions hydroxyles primaires et présente une masse molaire comprise entre 1000 à 6000 g/mol, et une viscosité à 25°C comprise entre 1000 et 30000 mPa.s.