Abstract: Certain novel heavy metal salts of dithiophosphonate derivatives, particularly monoesters, may be prepared inexpensively from hindered phenol compounds and are useful as anti-oxidants for example in lubricants and/or polymer materials.

Abstract: The present invention relates to aluminate coupling agents, their synthesis and applications. Metallic aluminum is reacted with lower alcohols, then reacted with selected longer chain alcohols, phenols, carboxylic acids etc., satisfied the coordination number of aluminum to give aluminate coupling agents having good hydrolytic stability and lower associativity. They can be used directly as typical coupling agents in processing of composition products such as plastics, rubber, coatings and laminates etc., and as adhesive promoter or primer to treat fillers, pigments and various materials in order to improve the processing and the quality of products, to increase the dosage of filler, to develop new products, to reduce energy consuming and cost of products.

Abstract: A method of preparing a metal alkyl of formula (R.sub.3 M).sub.x where R.sub.3 represents three alkyl groups R which may be the same or different, M represents a Group III metallic element and x is 1 or 2, which method comprises (a) forming a trialkyl adduct of formula (R.sub.3 M).sub.y.L wherein L represents an aryl-containing Group V, preferably phosphorus, donor ligand provided by an organic Lewis base which is stable at 20.degree. C., and wherein Y is an integer equal to the number of Group V atoms presents in the ligand, and (b) heating the adduct to provide thermal dissociation thereof thereby releasing the alkyl as a gaseous product.

Abstract: Aluminum phosphinate-amine adducts of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each a hydrogen atom, a lower alkyl group, a lower alkoxy(lower)alkyl group, a lower alkylthio(lower)alkyl group or a cyclo(lower)alkyl group to aluminum 1-hydroxyethylphosphinate-amine, which are useful for prevention and treatment of plant diseases caused by phytopathogenic fungi.

Abstract: A metal salt of an organic phosphate, having good stability and cholesterol-lowering activity, is produced by reacting a known compound ##STR1## wherein R.sub.4 and R.sub.5 are hydrogen or methyl, with a reaction agent such as metal hydroxide.

Abstract: A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, or its salt, which is useful as a fungicide.

Abstract: A process for preparing polyvalent metal and amine salts of the indicated phosphorinane (an acid). The salts are isolated as such and are effective, in small proportions, to impart flame-retardant properties to polymers, especially to polypropylene and to styrenic polymers such as polystyrene, ABS and MBS.

Abstract: A surface modifier for a powdery or granular substance having a hydrophilic surface is provided. The surface modifier comprises an aluminum chelate compound of the formula (I): ##STR1## wherein R.sup.1 is selected from hydrogen and C1-6 alkyl, R.sup.2 is selected from methyl and phenyl, R.sup.3 is selected from R.sup.4 --, R.sup.5 O-- and R.sup.6 NH--, A is selected from R.sup.7 O--, R.sup.8 COO--, R.sup.9 SO.sub.3 --, R.sup.10 OSO.sub.3 --, ##STR2## R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 are C1-22 alkyl or C3-22 alkenyl, aryl, aralkyl or alkylarly, R.sup.3 may be the same as or different from R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13, with the proviso that at least one of R.sup.3, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, and R.sup.13 is a substituent having at least 8 carbon atoms of a polymerizable alkenyl group, and m=0.5 to 2.7, n=0.3 to 2.5 and m+n=0.8 to 3.