Abstract: The present invention refers to macroinitiators of general formula (HO)x—Ra—(O—C(?O)—Rb—C(?O)—O—O—Rc)y, a process for obtaining them, as well as their use in the synthesis of polymer polyols. It also relates to the resulting polymer polyol, as well as to a dispersant obtainable in the process for preparing the polymer polyol, said dispersant being obtained by reacting said macroinitiator with at least one ethylenically unsaturated monomer.

Abstract: Process for the production of a compound comprising potassium phosphite comprising the steps of (a) reacting carboxylic acid of the formula R—(C(?O)OH)n with phosphorous trichloride (PCl3) towards a mixture comprising phosphorous acid (H3PO3) and acid chloride of the formula R—(C(?O)Cl)n; wherein R is a linear or branched alkyl or alkanediyl group with 1-20 carbon atoms and n is 1 or 2, (b) subjecting said mixture to a separation step, thereby obtaining (i) a fraction comprising crude phosphorous acid (H3PO3) and (ii) a fraction comprising acid chloride, (c) combining water, a potassium compound selected from KOH, KHCO3 and K2CO3, and the fraction comprising crude phosphorous acid, thereby forming an aqueous solution comprising potassium phosphite, and (d) removing organic compounds from said aqueous solution.

Abstract: Process for preparing a powdery organic peroxide formulation, said process comprises the following steps: a) preparing a reaction mixture comprising: 40-80 wt % water 10-25 wt % of an acid chloride or chloroformate, 1-4 wt % hydrogen peroxide, 2-8 wt % alkali metal hydroxide, 1-25 wt % of a phlegmatizer selected from the group consisting of ethylene glycol dibenzoate, phenyl benzoate, trimethylol propane tribenzoate, glyceryl tribenzoate, ethylene glycol ditoluate, 1,3-propanediol ditoluate, ethylene glycol 4-tert-butylbenzoate, ethylene glycol monobenzoate monotoluate, 2,3-butanediol dibenzoate, 4-methylphenyl benzoate acid ester, trimethylolpropane dibenzoate, and combinations thereof 0.002-0.20 wt % of a surfactant, and 0.25-5.0 wt % of an inert organic solvent, all percentages based on the weight of the reaction mixture, b) heating the reaction mixture at a temperature in the range 5-50° C.

Abstract: Process for the production of a compound comprising potassium phosphite comprising the steps of (a) reacting carboxylic acid of the formula R—(C(?O)OH)n with phosphorous trichloride (PCl3) towards a mixture comprising phosphorous acid (H3PO3) and acid chloride of the formula R—(C(?O)Cl)n; wherein R is a linear or branched alkyl or alkanediyl group with 1-20 carbon atoms and n is 1 or 2, (b) subjecting said mixture to a separation step, thereby obtaining (i) a fraction comprising crude phosphorous acid (H3PO3) and (ii) a fraction comprising acid chloride, (c) combining water, a potassium compound selected from KOH, KHCO3 and K2CO3, and the fraction comprising crude phosphorous acid, thereby forming an aqueous solution comprising potassium phosphite, and (d) removing organic compounds from said aqueous solution.

Abstract: Process for reducing fogging from high melt strength polypropylene (HMS-PP) obtained by heat treating polypropylene at a temperature between 150° C. and 300° C. in the presence of a dialkyl peroxydicarbonate, said process involving the introduction of an anhydride to said high melt strength polypropylene.

Abstract: Process for the treatment of a phosphite-containing waste stream, said process comprising the following steps: (a) optionally neutralizing the waste stream to a pH in the range 6.0-8.0, (b) adding the following compounds to the waste stream in any order of addition: (i) an oxidizing compound in order to oxidize said phosphite towards phosphate, (ii) an NH4+ source, (iii) a Mg2+ source, thereby forming a precipitate, (c) followed by isolating the precipitate from the waste stream, wherein the process is conducted under atmospheric pressure and at a temperature not exceeding 90° C.

Abstract: Process for preparing a powdery organic peroxide formulation, said process comprises the following steps: a) preparing a reaction mixture comprising: 40-80 wt % water 10-25 wt % of an acid chloride or chloroformate, 1-4 wt % hydrogen peroxide, 2-8 wt % alkali metal hydroxide, 1-25 wt % of a phlegmatizer selected from the group consisting of ethylene glycol dibenzoate, phenyl benzoate, trimethylol propane tribenzoate, glyceryl tribenzoate, ethylene glycol ditoluate, 1,3-propanediol ditoluate, ethylene glycol 4-tert-butylbenzoate, ethylene glycol monobenzoate monotoluate, 2,3-butanediol dibenzoate, 4-methylphenyl benzoate acid ester, trimethylolpropane dibenzoate, and combinations thereof 0.002-0.20 wt % of a surfactant, and 0.25-5.0 wt % of an inert organic solvent, all percentages based on the weight of the reaction mixture, b) heating the reaction mixture at a temperature in the range 5-50° C.

Abstract: Process for reducing fogging from high melt strength polypropylene (HMS-PP) obtained by heat treating polypropylene at a temperature between 150° C. and 300° C. in the presence of a dialkyl peroxydicarbonate, said process involving the introduction of an anhydride to said high melt strength polypropylene.

Abstract: Method for curing a radically curable resin by adding to said resin an organic peroxide and a metal-bearing polymer, said metal-bearing polymer comprising functional groups that coordinate to a metal selected from the group consisting of Cu, Mn, Fe, and V and form a complex together with said metal and a complexing agent.

Abstract: Method for curing a radically curable resin by adding to said resin an organic peroxide and a metal-bearing polymer, said metal-bearing polymer comprising functional groups that coordinate to a metal selected from the group consisting of Cu, Mn, Fe, and V and form a complex together with said metal and a complexing agent.