Abstract: Methods of stabilizing halogen-containing organic plastics are described, wherein the methods comprise: (a) providing a fluoroalkanesulfonic acid; and (b) combining the fluoroalkanesulfonic acid and the halogen-containing organic plastic. Stabilizer compositions containing a fluoroalkanesulfonic acid and PVC containing such stabilizers are also described.

Abstract: The invention relates to the use of compositions containing urea derivatives of cyanoacetic acid and urea as stabilisers for chlorine-containing thermoplastic plastics. Said derivatives are compounds of general formula (A), NC—CH2—CO—N(R1)—CO—NH—R2, where R1 and R2=independently, a branched or unbranched, linear or cyclic, alkyl group with 1 to 18 C atoms, an aryl group with 6 to 18 C atoms, optionally substituted by one or more alkyl groups with 1 to 6 C atoms.

Abstract: A process for the production of cationic layer compounds wherein layer compounds corresponding to general formula (I):--[E.sub.e Z.sub.z D.sub.d V.sub.v (OH.sup.-).sub.x ](A.sup.n-).sub.a.qH.sub.2 O-- (I)in whichE is a monovalent cation from the group consisting of alkali metals,e is a number of 0 to 2,Z is a divalent metal cation,z is a number of 0 to 6,D is a trivalent metal cation,d is a number of 0 to 3,V is a tetravalent metal cation,v is a number of 0 to 1,(A.sup.n-) is an acid anion having the charge n- where n is an integer of 1 to 3,q is a number of 1 to 10,with the proviso that x>a and e+2z+3d+4v=x+na, are subjected to alkali-induced ripening in aqueous medium wherein the alkali metal hydroxide content of said aqueous medium is adjusted to a value in the 1- to 6-molar range, the crystallization temperature is adjusted to a value in the range from 60.degree. C. to 100.degree. C., and the crystallization time is adjusted to a value in the range from 2.5 to 50 hours.