Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethy

Details Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethy Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethy

1977-12-08

1980-07-01

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252400A, 252401, 252403, 252404, 260 457P, 260 458N, 260 458NZ, 260 458R, 260 4595H, 260 4595R, C08K 513, C08K 534, C08K 535, C08K 553

Patent

active

042105773

ABSTRACT:
Stabilizers for organic polymeric materials are provided, comprising a 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester having the general formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of ##STR2## Y is selected from the group consisting of hydrogen and O.sup.. ; R.sub.6 is lower alkyl having from one to two carbon atoms;

REFERENCES:
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patent: 3496134 (1970-02-01), Di Giaimo
patent: 3539531 (1970-11-01), Drake et al.
patent: 3749694 (1973-07-01), Cantatore et al.
patent: 3790648 (1974-02-01), Schmidt et al.
patent: 3840494 (1974-10-01), Murayama et al.
patent: 4016168 (1977-04-01), Murayama et al.
patent: 4024103 (1977-05-01), Heinrich et al.
patent: 4035323 (1977-07-01), Mathis
patent: 4067931 (1978-01-01), Batorewicz

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