Abstract: Polymers having repeating units of the general formula I ##STR1## where Y and Z are the same or different and each denote --H, --COOR.sup.1 or --CON(R.sup.2)R.sup.3, with the proviso that Y and Z do not both denote --H, or Y and Z together with the carbon atoms to which they are attached denote a divalent cyclic group of formula ##STR2## A denotes --O-- or --N(R.sup.4)--, R.sup.1 denotes --H, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl, R.sup.2 and R.sup.3 each denote --H, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 hydroxyalkyl, and R.sup.4 denotes --H, --OH, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.1 -C.sub.4 alkoxy. The carboxyl-containing polymers are useful in water treatment.

Abstract: The present invention provides a process for producing a metal or metalloid salt of methyl methy phosphonic acid which comprises reacting, under non-aqueous conditions, dimethyl methylphosphonate with a finely divided form of an oxide or hydroxide of one or more metals or metalloids from group IIA, IIB, IIIA, IVA, IVB, VA, VIB, VIIB or VIII of the Periodic Chart of Elements, at an elevated temperature.

Abstract: The invention provides (co)polymers having the formula (I): ##STR1## wherein M is hydrogen, a metal ion or an ammonium cation;x is 1, 2 or 3;y is an integer from 2 to 100; andn is 1, 2 or 3.The (co)polymers of formula I are corrosion and/or scale inhibitors for the protection of metal surfaces in contact with water.

Abstract: Dithiophosphate lubricant additives of the formula I ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, represents C.sub.3 -C.sub.12 alkyl which can be interrupted by 1 to 2 oxygen atoms, C.sub.6 -C.sub.10 aryl or (C.sub.1 -C.sub.12 alkyl)-aryl, or R.sub.1 and R.sub.2 together represent C.sub.2 -C.sub.12 alkylene which can be interrupted by 1 or 2 oxygen atoms, and represents --OH, --NR.sub.3 R.sub.4, --OH.NR.sub.3 R.sub.4 R.sub.5, --NHCH.sub.2 COOH, --NHCH.sub.2 COOR.sub.1, --NH(CH.sub.2 COOH).sub.2, --N(CH.sub.2 COOR.sub.1).sub.2, --N(CH.sub.2 COOH).sub.2.NR.sub.3 R.sub.4 R.sub.5, --N(CH.sub.2 COOH.NR.sub.3 R.sub.4 R.sub.5).sub.2, --NHCH.sub.2 OH or --N(CH.sub.2 CH.sub.2 OH).sub.2, wherein R.sub.3, R.sub.4 and R.sub.5, each independently of the other, represents hydrogen or C.sub.1 -C.sub.18 alkyl, or R.sub.3 and R.sub.4 together represent C.sub.3 -C.sub.12 alkylene which can be interrupted by an oxygen, sulphur or nitrogen atom.

Abstract: Compounds having the general formula: ##STR1## where A is a C.sub.1 -C.sub.4 straight or branched chain alkylene radical, B is a --SO.sub.3 M, --CO.sub.2 M, --PO.sub.3 HM or --PO.sub.3 M.sub.2 grouping,M is hydrogen, or a cation giving a water-soluble derivative,R is hydrogen, a cation giving a water-soluble derivative or a C.sub.1 -C.sub.4 straight or branched alkyl, R.sub.1 is hydrogen, methyl or --COOH, and m is 0 or 1 and processes of preparing them.

Abstract: Processes for the absorption and subsequent removal as sulphur of hydrogen sulphide from gases, gas mixtures and liquid hydrocarbons in which the material containing hydrogen sulphide is washed with an aqueous alkaline solution containing one or more compounds having the general formula: ##STR1## where A is a C.sub.1 -C.sub.4 straight or branched chain alkylene radical,B is a --SO.sub.3 M, --CO.sub.2 M, --PO.sub.3 HM or --PO.sub.3 M.sub.2 grouping, whereM is hydrogen, or a cation giving a water-soluble derivative,R is hydrogen, a cation giving a water-soluble derivative, or C.sub.1 -C.sub.4 straight or branched alkyl,R.sub.

Abstract: Flameproofing of aromatic polymers is achieved by adding a synergistic combination of (a) a phosphorus compound and (b) a compound of formula R(CH.sub.2 X).sub.n, wherein R is an aromatic or heterocyclic residue, X is a leaving group and n is at least 2. Preferred phosphorus compounds are esters of phosphoric acid. The flameproofed polymers may contain aromatic groups in the main chain or as side-groups, for instance styrene polymers and copolymers, aromatic polyesters, polycarbonates and polyphenylene oxides.

Abstract: Aromatic hydrocarbon oligomers of the formula(A).sub.a (--CH.sub.2 --).sub.b [--CH.sub.2 (OCH.sub.2).sub.m OCH.sub.2 --].sub.c (--CH.sub.2 X).sub.dwherein A is at least one aromatic hydrocarbon or heterocyclic residue, X is OH or a derivative thereof, a is 2 to 20 but equals b+c+1, b is 0 to 19, c is 0 to 19, d is 0 to 2a and m is 0 to 10, there being at least two (--CH.sub.2 X) groups per molecule, the group each --CH.sub.2 O--CH.sub.2 -- portion of the group counting as (--CH.sub.2 X) for this purpose, are suitable as non-volatile fire retardent agents in chlorine-containing aliphatic polymers, copolymers or polyblends, which contain an ester of an phosphorus acid.

Abstract: Flameproofing of aromatic polymers is achieved by adding a synergistic combination of (a) a phosphorus compound and (b) a compound of formula R(CH.sub.2 X).sub.n, wherein R is an aromatic or heterocyclic residue, X is a leaving group and n is at least 2. Preferred phosphorus compounds are esters of phosphoric acid. The flameproofed polymers may contain aromatic groups in the main chain or as side-groups, for instance styrene polymers and copolymers, aromatic polyesters, polycarbonates and polyphenylene oxides.

Abstract: Functional fluid composition comprising an ester of a phosphorus acid and a compound of the formula Ir(ch.sub.2 x).sub.n (I)in which R represents an aromatic hydrocarbon or heterocyclic containing residue, n is an integer of at least 2, and each X is the same or different and represents a leaving group, which composition may be used for a wide variety of purposes, for example in hydraulic machinery employed in foundries and mines, in hydraulic systems for aircraft, in turbines and as fluids in electrical equipment and in heat transfer devices.

Abstract: New alkyl substituted p-hydroxy aryl esters and alkyl substituted p-hydroxy aralkyl esters of 2,2,6,6-tetrasubstituted piperidin-4-ols are used as stabilizers for organic materials, especially for polymers.

Abstract: Phosphorylated alkylphenol/phenol ester mixtures in which the weight ratio of the alkyl moiety to the phenol moiety ranges from 0.05 to about 0.65, and the number of carbon atoms per alkyl moiety ranges from 3 to 16, preferably from 3 to 12, which mixtures have satisfactory viscosity range and impart to polymeric materials and especially to polyvinylchloride plasticized therewith good light and heat stability; a process for producing such phosphorylated alkylphenol/phenol ester mixtures; and polymeric materials plasticized therewith. .Iadd.

Abstract: New 1- and 4-substituted piperidines are stabilizers for organic material. They are produced by reacting corresponding 1-substituted piperidinols with acid chlorides or corresponding 4-substituted piperidines with a compound introducing into the 1-positon a residue.

Abstract: New 1- and 4-substituted piperidines are stabilizers for organic material. They are produced by reacting corresponding 1-substituted piperidinols with acid chlorides or corresponding 4-substituted piperidines with a compound introducing into the 1-position a residue.