摘要:
Polymeric diacyl peroxides containing ester groups in the molecules are insensitive to impact, friction and heat. Accordingly, they can be safely produced and handled. They are useful as industrial polymerization initiators and they dissolve promptly in vinyl-type monomers.
摘要:
The present invention provides bleaching or detergent compositions containing a cycloaliphatic peroxyacid of general formula: ##STR1## WHEREIN O .ltoreq.m .ltoreq.5,O .ltoreq.n .ltoreq.5 andN+m.gtoreq. 1,And mono or diethylenically unsaturated derivatives thereof, and processes for washing/bleaching using such peroxyacids, preferably at a temperature of from 30 to 60.degree. C. The peroxyacids can be generated in situ by hydrolysis or perhydrolysis of the corresponding diacyl peroxide. The peroxyacid and diacyl peroxide can be desensitized by intimate contact with a diluent e.g. lauric acid or magnesium sulphate and coated to reduce destructive interaction with other components of the detergent or bleaching composition.
摘要:
New alpha-halogeno-lauroyl peroxides are described with novel processes of making them and with some reference to their uses. In general, they are prepared by mixing an alpha-halogeno-lauroyl halide diluted in a solvent inert to the constituents of the reaction medium with hydrogen peroxide in the presence of caustic soda under conditions of temperature, pressure, agitation favorable to their reaction.
摘要:
A novel class of compounds Xn-Rp-Ym where R is a 2-4 valence aliphatic, cycloaliphatic or aromatic radical; X is an acylating function; Y is a peroxy containing group and n and m are each equal to 1-2 and p is at least 1. A novel class of polymers ((An-(R-Dn)n)v-P)w where A is a peroxy containing group; R is a 2-4 valence aliphatic, cycloaliphatic or aromatic radical, P is a polyvalent polymeric residue; D is a carbonyl containing connecting group; Z is H. OH, NH2, NHR2, SH or R2O group; v and w are each equal to 1-100; and n is equal to 1-2. Polymers II are useful with vinyl monomers in the formation of block and graft polymers. Peroxides having an acylating function are prepared by reacting at 0*-80* C an organic peroxide having an hydroxyl or carboxyl group with a defined acylating reactant. Peroxides having at least one acylating function are prepared by peroxidizing a compound having at least two acylating functions as the only peroxidizable substituents.