摘要:
The present invention relates to a composition for protecting from oxidation a dietary liquid, which contains substances sensitive to oxidation during the shelf-life thereof including a combination of two types of yeast cells: (i) non-viable yeast cells that are capable of rapidly consuming oxygen, and (ii) glutathione-enriched inactivated yeast cells.
摘要:
New halogenated polyether polyols for the production of permanently fire-proof polyurethane foams, said halogenated polyether polyols corresponding to the general formula: ##STR1## in which z represents a number between 2 and 6, x and y represent numbers between 0 and 12 such that the mean value x+y per chain is between 0 and 12, and that z (x+y), in which x+y represents the mean value of x+y in the entire molecule, is between 1 and 72, and Z represents the residue of a halogenated polyhydroxyl compound initiator and comprises a C.sub.2 to C.sub.6 halogenated aliphatic radical of valence z, the halogen being selected from the group consisting of chlorine and bromine.
摘要:
Rigid and semi-rigid, fire-resisting polyurethane foams which are prepared by reacting in the presence of a foaming agent and a reaction catalyst an organic polyisocyanate and at least one polyether-polyol having the general formula: ##STR1## IN WHICH Z REPRESENTS A NUMBER BETWEEN 2 AND 6, X AND Y REPRESENT NUMBERS BETWEEN 0 AND 12 SUCH THAT THE MEAN VALUE X+Y PER CHAIN IS BETWEEN 0 AND 12, AND THAT Z (X+Y), IN WHICH X+Y REPRESENTS THE MEAN VALUE OF X+Y IN THE ENTIRE MOLECULE, IS BETWEEN 1 AND 72, AND Z represents a radical of valence z which is the residue of an organic polyhydroxyl compound initiator having from 2 and 6 hydroxyl groups.