The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1982
Filed:
Apr. 10, 1980
Giuseppe Cantatore, Casalecchio di Reno, IT;
Paolo Cassandrini, Bologna, IT;
Chimosa Chimica Organica S.p.A., Bologna, IT;
Abstract
Compounds of the formula ##STR1## in which R.sub.1 is hydrogen, --O, --CN, a linear or branched alkyl radical containing from 1 to 20 carbon atoms, an alkenyl or alkynyl radical containing from 2 to 20 carbon atoms, benzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals or hydroxybenzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals; or R.sub.1 is a --COR.sub.14, --COOR.sub.14, --CH.sub.2 COOR.sub.14 or --CONR.sub.14 R.sub.15 radical, in which R.sub.14 and R.sub.15, which may be identical or different, are linear or branched C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.5 -C.sub.12 -cycloalkyl, phenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.8 -alkyl radicals, hydroxyphenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, C.sub.7 -C.sub.12 -aralkyl, 2,2,6,6-tetramethyl-4-piperidyl, 1,2,2,6,6-pentamethyl-4-piperidyl or, when they are bonded to N, can be hydrogen or, conjointly with the N to which they are bonded, can form a nitrogen-containing heterocyclic ring with 5-7 members; or R.sub.1 is a ##STR2## radical, in which R.sub.16 is hydrogen or methyl and R.sub.17 is --OH, --OR.sub.14, --OCOR.sub.14 or --OCONR.sub.14 R.sub.15, in which R.sub.14 and R.sub.15 are as defined above; or R.sub.1 is a ##STR3## radical; R.sub.2, R.sub.3, R.sub.6 and R.sub.7, which may be identical or different, are an alkyl radical containing 1 to 6 carbon atoms; R.sub.4 and R.sub.5, which may be identical or different, are hydrogen or an alkyl radical containing from 1 to 6 carbon atoms; R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12 and R.sub.13, which may be identical or different, are hydrogen or an alkyl radical containing 1 to 6 carbon atoms; m and n are zero or 1; X and Z, which may be identical or different, are ##STR4## in which R.sub.18 is hydrogen or C.sub.1 -C.sub.20 -alkyl and R.sub.19 is hydrogen, C.sub.1 -C.sub.20 -alkyl or a --(CH.sub.2).sub.r --COOR.sub.14 radical, or a --CONR.sub.14 R.sub.15 radical in which R.sub.14 and R.sub.15 are as defined above and r is an integer from 0 to 10; Y is ##STR5## in which R.sub.20 is hydrogen or C.sub.1 -C.sub.20 -alkyl and R.sub.21 is hydrogen, C.sub.1 -C.sub.20 -alkyl, benzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, hydroxybenzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, 2,2,6,6-tetramethyl-4-piperidyl, 1,2,2,6,6-pentamethyl-4-piperidyl or a --OH, --NO.sub.2, --NR.sub.22 R.sub.23 or --NH--COR.sub.24 radical, in which R.sub.22 and R.sub.23, which may be identical or different, are hydrogen, C.sub.1 -C.sub.20 -alkyl, benzyl or hydroxybenzyl substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals and R.sub.24 is C.sub.1 -C.sub.20 -alkyl, phenyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.8 -alkyl radicals or hydroxyphenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radicals, are useful as stabilizers for synthetic polymers.