摘要:
Bath for the quenching of ferrous and nonferrous metals and their alloys, comprising a hydrogenated starch hydrolysate having, expressed with respect to the dry matter, a percentage of products of degree of polymerization 1 and 2 comprised between 1 and 90, the complement to 100 being constituted by products of degree of polymerization equal to or higher than 3.
摘要:
A binding composition for the preparation of agglomerates based on finely divided materials, which puts into the presence of one anotheran amylaceous compound andammonium chloride.
摘要:
The invention relates to an agent increasing the rate of hardening of cements, mortars and concretes while maintaining their workability. It also concerns an adjuvant for cements, mortars and concretes, comprising an effective quantity of said agent, and the cements, mortars and concretes comprising an effective quantity of said agent or said adjuvant. This agent corresponds to the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3, which may be identical or different, denote the hydrogen atom or an alkyl, substituted alkyl, alkene, aryl or aralkyl group,B denotes a hydrocarbon chain containing at least one --CH.sub.2 -- unit and in which the number of carbons situated in the chain is smaller than or equal to 10,A denotes the groups: ##STR2## in which: X denotes an organic or inorganic anion and in particular a halogenR.sub.5, R.sub.6 and R.sub.7, which may be identical or different, denote alkyl, substituted alkyl, alkene, aryl or aralkyl radicals.
摘要:
Process for the preparation of a water-resistant fuel agglomerate, characterized by the fact:that there are employed a finely divided fuel material, an organic binder and an oxidizing agent,that the oxidizing agent is mixed with either the fuel material, or the organic binder, or with one or other of these products or their mixture,that the mixture so obtained is subjected to an agglomeration treatment, andthat the agglomerate obtained at the end of the agglomeration treatment is subjected to a stoving treatment.
摘要:
A water-resistant fuel agglomerate based on finely divided fuel material, is characterized by the fact that it comprises, distributed within its constituent mass, effective proportions respectively of at least one organic binder selected from the group comprising starches, starch derivatives, flours, proteins, celluloses, hemicelluloses as well as the mixture of these substances, and of at least one organosilicic waterproofing or water-repelling agent.
摘要:
Composition for forming on an article a temporary protective covering and applicable in the form of an aqueous solution or dispersion, comprising at least one starch or starch derivative and at least one wetting agent.
摘要:
A composition for inhibiting corrosion by water of metal substrates comprises zinc gluconate or glucoheptonate and at least one water-soluble inorganic polyphosphate.
摘要:
This invention relates to a starch hydrolysate which can be optionally hydrogenated as well as the process for preparing said hydrolysate and uses thereof.Its glucidic spectrum corresponds to:a content of monosaccharides (DP=1) less than 14%,a content of disaccharides (DP=2) less than 35%, preferably less than 20%,a content of oligosaccharides of DP 4 to DP 10 ranging from 42% to 70%, preferably from 42 to 60%, the oligosaccharides of DP 5 to DP 7 representing by themselves a proportion preferably higher than 25% and more preferably higher than 30%,a content of polysaccharides of DP higher than 10, less than 32%, and preferably less than 25%.The hydrolysate is useful in the preparation notably of human foodstuff.