344results about How to "Increase crystallization rate" patented technology

The invention relates to the technical field of compound sugar, in particular to an erythritol crystal, which comprises erythritol and sweet agents accounting for 1 to 2.5 percent of the weight of the erythritol. A preparation method of the erythritol crystal comprises the following steps that the erythritol and the sweet agents are mixed and dissolved to obtain liquid solution, the solution is simultaneously evaporated and crystallized, and the erythritol crystals are obtained; the erythritol and the sweet agents are mixed and are dissolved to obtain liquid solution, the liquid solution is subjected to non-evaporation crystallization, the filtering is carried out after the crystallization completion, and the erythritol crystals are obtained; the erythritol and the sweet agents are mixed in a solid from; and the mixed solids are subjected to melting, crystallization, crushing and drying to obtain the erythritol crystals. The sweetness of the erythritol is improved and reaches more than 80 percent of the sweetness of the cane sugar, the consistency of ingredients of compound products of the erythritol and the sweet agents is realized, the problem of cocrystallization of the erythritol and the sweet agents easily carbonized at high temperature is solved, the crystallization rate is improved to the maximum degree, the crystallization efficiency is 5 to 20 percent higher than that of the traditional crystallization technology, and the application field of the product is enlarged.

A thermoplastic polyurethane (TPU) elastomer and p-phenylene diisocyanate (PPDI) / polycaprolactone-based composition therefor having a unique chain extender combination for improved injection moldability. The elastomer is formed as the reaction product of: (A) from about 60 to 80% by weight of a hydroxyl-terminated poly(caprolactone) diol; (B) from about 17 to 22% by weight of a p-phenylene diisocyanate; (C) from about 3 to 10% by weight of a first hydroxyl-functional chain extender; and (D) less than about 2% by weight of a second hydroxyl-functional chain extender different from the first chain extender, the second chain extender being selected as effective to modify the crystallinity of the elastomer.

A quartz glass crucible for use in pulling up a silicon single crystal, wherein it has, at least in the curved portion thereof, a three-layer structure comprising a transparent inner layer being composed of a synthetic quartz glass and having a low Al concentration, a transparent or nontransparent intermediate layer being composed of a natural quartz glass or a mixture of natural and synthetic quartz glasses and having a high Al concentration, and a nontransparent outer layer being composed of a natural quartz glass and having an Al concentration higher than that of the intermediate layer. The quartz glass crucible is reduced in the deformation of the transparent inner layer, and allows the suppression of the change in the amount of dissolution of the quartz glass crucible associated with the pull-up of a single crystal and the achievement of the uniform oxygen concentration in the longitudinal direction of a single crystal.

The present invention relates to a process for the production of a fat composition suitable for use as a confectionery fat, wherein a starting fat composition which contains between 20 and 95 wt % of S2U, less than 75 wt % of SU2+U3, less than 20 wt % of S3 between 1 and 12 wt % of diglycerides, between 10 and 100 wt % of at least one interesterified fat, the interesterified fat containing less than 15 wt % of C-12 with respect to the total amount of interesterified fat, is subjected to a catalytic hydrogenation so as to obtain a first fat and in that the first fat is incorporated in the fat composition. Thereby the glyceride contents are expressed as wt % with respect to the total amount of d- and triglycerides, S means a saturated fatty acid with a hydrocarbon chain length of 14-24 carbon atoms, U means unsaturated fatty acid with a hydrocarbon chain length of 14-24 carbon atoms.