Stabilizers for halogen containing polymers comprising zinc merc

Details Stabilizers for halogen containing polymers comprising zinc merc Stabilizers for halogen containing polymers comprising zinc merc

1984-02-06

1985-05-07

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

252399, 524423, 524424, 524433, 524301, 524423, 524424, 524433, 524436, C08K 536

Patent

active

045159165

ABSTRACT:
Compositions are provided which are effective for stabilizing halogen containing polymers against the deteriorative effects of heat. These stabilizer compositions comprise (1) at least one zinc mercaptoester, (2) at least one basic inorganic alkali or alkaline earth metal compound, and, optionally, (3) at least one substituted dihydropyridine.

REFERENCES:
patent: 2723965 (1955-11-01), Leistner
patent: 4132691 (1979-01-01), Ejk
patent: 4239893 (1980-12-01), Pigerol
patent: 4297268 (1981-10-01), Abeler et al.
Chemical Abstracts 83 207117c (1975).
Chevassus, F. The Stabilization of Polyvinyl Chloride, 173 & 174, (1963), St. Martins Press, N.Y.
Iida et al., "Investigations on Poly(vinyl Chloride), III & IV, Effects of Metal Chlorides on the Thermal Decomposition of Poly(vinyl Chloride)--J. Polymer Sci., Polymer Chemistry Edition, vol. 15, 2427-2433, 2435-2440 (1977).
Stapfer et al., "Antioxidative Stabilization of Polyvinyl Chloride", American Chem. Society, Div. of Polymer Chemistry, Polymer Preprints, vol. 12, No. 1, 795-803, Mar. 1971.
Lally et al., "Stabilization of Polyvinyl Chloride"--Modern Plastics Encyclopedia, Dec. 1949, 111, 112, 114, 116, 156-162.

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