Ciba-geigy Corporation

Witco Vinyl Additives Gmbh

Ciba Specialty Chemicals Corporation

Crompton Vinyl Additives Gmbh

Karl Josef Kuhn

Wolfgang Wehner

Rolf Drewes

Markus Kolb

Horst Zinke

Hans-Jurgen Sander

Valerio Borzatta

Gerhard Rytz

Hans-J Urgen Sander

Stabilized halogen-containing polymers

The invention relates to a PVC composition comprising a stabilizer combination of (b) polyDHP of the formula I ##STR1## where the radicals T, L, R, R', R' are as defined in claim 1, (c) a subtance from the group consisting of crystalline hydrotalcites, crystalline or amorphous zeolites, crystalline or amorphous dawsonites, magadiites or kenyaites, disaccharide alcohols and sterically hindered amines containing the structural unit ##STR2## in which R.sup.0 is hydrogen or methyl, and (d) at least one zinc, aluminium or lanthanoid compound.

Stabilized polyvinyl chloride

A stabilizer combination, principally for PVC, is described which essentially comprises A) at least one zinc compound of the formula I

Stabilizer combination for chlorine-containing polymers

Compositions, comprising (i) a halogen-containing polymeric material, and

Monomeric and oligomeric bisphosphites as stabilisers for polyvinyl

The invention relates to a PVC composition comprising a stabilizer combination of (b) polyDHP of the formula I ##STR1## where the radicals T, L, R, R', R' are as defined in claim 1, (c) a substance from the group consisting of

A stabilizer combination, principally for PVC, is described, comprising A at least one zinc carboxylate B at least one compound of the formula ##STR1## in which R.sub.1 to R.sub.6 are as defined in claim 1.

Monomeric N-piperidinylmelamines as stabilizers for chlorine-containing

A high degree of stabilization of flexible PVC is achieved by using a perchlorate and a terminal epoxide compound.

Stabilized flexible PVC

Use of a di- or polysaccharide alcohol and an inorganic or organic zinc, aluminum or rare-earth compound allows a high degree of stabilization of a halogen-containing polymer or polymer recyclate.

A high degree of stabilization of polyvinyl chloride is achieved by using a perchlorate, a terminal epoxide compound and an antioxidant.

Use of an inorganic or organic zinc compound and a terminal epoxide compound, optionally with chalk, gives a high level of stabilization of PVC.

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Lautertal, Germany

Karl Josef Kuhn