US3941744A
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Piperidine derivatives and their use as stabilizers
Assignee: Sankyo Co Ltd
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Filing: 1973-03-12
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Granted: 1976-03-02
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Expires: 1993-03-12
Abstract
Abstract Piperidine derivatives having the formula ##SPC1## Wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group, or nitroso group; X represents oxygen atom or sulfur atom; Y represents oxygen atom, sulfur atom or a group of the formula = N -- R" in which R" is hydrogen atom, an alkyl group or a substituted alkyl group; Z represents oxygen atom or a group of the formula >N -- R'" in which R'" is hydrogen atom, an alkyl group or a substituted alkyl group; n is an integer of 1 through 4 inclusive; and R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group; an alkylenediphenylene group, a bis-(acyloxyalkylene) group, an alkylene-bis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, a tris(acyloxyalkylene) group, an alkane-tris(oxycarbonylakyl) group or a group of the group ##SPC2## In which p is an integer of 1 through 8 inclusive, and, when n is 4, an alkanetetrayl group, a tetrakis-(acyloxyalkylene) group or an alkane-tetrakis-(oxycarbonylalkyl) group. The piperidine derivatives (I) of this invention are prepared in various manners and useful as stabilizers for synthetic polymers against thermal- and photo-deterioration thereof.
Inventors
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
- 👤 Takao Yoshioka
- 👤 Toshimasa Toda
- 👤 Eiko Mori
- 👤 Hideo Horiuchi
- 👤 Susumu Higashida
- 👤 Katsuaki Matsui
- 👤 Tomoyuki Kurumada
- 👤 Noriyuki Ohata
- 👤 Hisayou Ohsawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
C; C07; C07D; C07D498/00; C07D498/02; C07D498/10; C07D519/00; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/5532; C07F9/5537; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
260 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC44## wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group or nitroso group; X represents oxygen atom or sulfur atom; Y represents oxygen atom, sulfur atom or a group of the formula = N--R" in which R" is hydrogen atom, an alkyl group or a substituted alkyl group; Z represents oxygen atom or a group of the formula > N--R'41 in which R'" is hydrogen atom, an alkyl group or a substituted alkyl group; n is an integer of 1 through 4 inclusive; and R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group, an alkylenediphenylene group, a bis-(acyloxyalkylene) group, an alkylenebis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, a tris-(acyloxyalkylene) group, an alkane-tris-(oxycarbonylalkyl) group or a group of the group ##SPC45## in which p is an integer of 1 through 8 inclusive and p's may be the same or different, and, when n is 4, an alkane tetrayl group, a tetrakis-(acyloxyalkylene) group or an alkanetetrakis(oxycarbonylalkyl) group.
Claim 2
Dependent Claim
260 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC44## wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group or nitroso group; X represents oxygen atom or sulfur atom; Y represents oxygen atom, sulfur atom or a group of the formula = N--R" in which R" is hydrogen atom, an alkyl group or a substituted alkyl group; Z represents oxygen atom or a group of the formula > N--R'41 in which R'" is hydrogen atom, an alkyl group or a substituted alkyl group; n is an integer of 1 through 4 inclusive; and R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group, an alkylenediphenylene group, a bis-(acyloxyalkylene) group, an alkylenebis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, a tris-(acyloxyalkylene) group, an alkane-tris-(oxycarbonylalkyl) group or a group of the group ##SPC45## in which p is an integer of 1 through 8 inclusive and p's may be the same or different, and, when n is 4, an alkane tetrayl group, a tetrakis-(acyloxyalkylene) group or an alkanetetrakis(oxycarbonylalkyl) group.
Claim 3
Dependent Claim
414 words
The synthetic polymer composition according to claim 1 wherein said compound (I) is a member selected from the compounds (I) in which R' represents an alkyl group of 1 to 20 carbon atoms, a hydroxyalkyl group, an allyl group, 2-propynyl group, a cyanoalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an alkylthioalkyl group, an epoxyalkyl group, an acyloxyalkyl group, an alkoxycarbonylalkyl group, an aralkyl group, an acryloyl group, an acryloyl group which is substituted with alkyl or phenyl, an aralkyloxycarbonyl group, an amino group or an amino group which is substituted with aroyl or alkyl; R represents, when n is 1, the above-defined alkyl group, a phenyl or naphthyl group which may be substituted with halogen or alkyl in the aryl moiety, a cycloalkyl group, an alkoxycarbonyl group, an aralkyloxycarbonyl group, the group of the formula ##SPC46## or the group of the formula ##SPC47## when n is 2, a polymethylene group of 1 to 10 carbon atoms, a group of the formula --(CH 2 ) p --CH=CH--(CH 2 ) p -- in which p is an integer of 1 through 8 inclusive and p's may be the same or different, a phenylene group which may be substituted with alkyl, a group of the formula ##SPC48## a group of the formula ##SPC49## a group of the formula ##EQU18## in which p is as defined above and p 1 is an integer of zero through 8 inclusive, a group of the formula ##SPC50## in which p is as defined above, a group of the formula ##EQU19## in which p is as defined above, a group of the formula -(CH 2 ) p -O-(CH 2 ) p - in which p is as defined above or a group of the formula ##SPC51## when n is 3, a group of the formula ##EQU20## in which p is as defined above, a group of the formula ##EQU21## in which p is as defined above, a group of the formula ##SPC52## in which p is as defined above, a group of the formula ##EQU22## in which p is as defined above or a group of the formula ##SPC53## in which p is as defined above, and, when n is 4, a group of the formula ##EQU23## in which p is as defined above, a group of the formula ##SPC54## in which p is as defined above or a group of the formula ##EQU24## in which p is as defined above, p's being optionally the same or different.
Claim 4
Dependent Claim
135 words
The synthetic polymer composition according to claim 1 wherein said compound (I) is a member selected from the compounds (I) in which R' represents an alkyl group, allyl group, an aralkyl group, an acyloxyalkyl group, a hydroxyalkyl group or 2,3-epoxypropyl group; X and Y represent oxygen atom; Z represents a group of the formula > N-R'" in which R'" is hydrogen atom or an alkyl group; n is an integer of 1 or 2; and R represents, when n is 1, an alkyl group, allyl group, an aralkyl group, an acyloxyalkyl group or 2,3-epoxypropyl group, and, when n is 2, an alkylene group, a group of the formula ##SPC55## or a group of the formula --(CH 2 ) p --O--(CH 2 ) p -- in which p is an integer of 1 through 8 inclusive.
Claim 5
Dependent Claim
31 words
The synthetic polymer composition according to claim 1 wherein said compound (I) is incorporated in the amount of 0.01 - 5.0% by weight, based upon the amount of the synthetic polymer.
Claim 6
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyolefin.
Claim 7
Dependent Claim
15 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyvinyl chloride.
Claim 8
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyurethane.
Claim 9
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyamide.
Claim 10
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyacetal.
Claim 11
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyester.
Claim 12
Dependent Claim
19 words
The synthetic polymer composition according to claim 1 wherein said compound (I) is selected from the group consisting of,
Claim 13
Dependent Claim
15 words
3,8-triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro[4.5]decane-2,4-dione, 8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-octyl-spiro[4,5]-decane-2,4-dione, 1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]-decane-2,4-dione, 1,3,8-triaza-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3,8-bis(2-acetoxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)propane, 1,6-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)hexane,
Claim 14
Dependent Claim
15 words
3,8-triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro[4.5]decane-2,4-dione, 8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-octyl-spiro[4,5]-decane-2,4-dione, 1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]-decane-2,4-dione, 1,3,8-triaza-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3,8-bis(2-acetoxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)propane, 1,6-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)hexane,
Claim 15
Dependent Claim
6 words
2'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decyl)diethylether, 2,2'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)diethylether, 1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione and α,α' -bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)-p-xylene.
Claim 16
Dependent Claim
6 words
2'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decyl)diethylether, 2,2'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)diethylether, 1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione and α,α' -bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)-p-xylene.
Claim 17
Dependent Claim
56 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC56## wherein R' is alkyl; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is hydrogen; n is 1, and R is alkyl.
Claim 18
Dependent Claim
56 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC56## wherein R' is alkyl; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is hydrogen; n is 1, and R is alkyl.
Claim 19
Dependent Claim
95 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC57## wherein R' represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group, a hydroxyalkyl group or an epoxyalkyl group; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is a hydrogen atom or an alkyl group; n is 1, and R represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group or an epoxyalkyl group.
Claim 20
Dependent Claim
95 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC57## wherein R' represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group, a hydroxyalkyl group or an epoxyalkyl group; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is a hydrogen atom or an alkyl group; n is 1, and R represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group or an epoxyalkyl group.
Claim 21
Dependent Claim
31 words
The synthetic polymer composition according to claim 13 wherein said compound (I) is incorporated in an amount of 0.01 - 5.0% by weight, based upon the amount of the synthetic polymer.
Claim 22
Dependent Claim
14 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyolefin.
Claim 23
Dependent Claim
15 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyvinyl chloride.
Claim 24
Dependent Claim
14 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyurethane.
Claim 25
Dependent Claim
14 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyamide.
Claim 26
Dependent Claim
14 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyacetal.
Claim 27
Dependent Claim
14 words
The synthetic polymer composition according to claim 13 wherein said polymer is a polyester.
Claim 28
Dependent Claim
29 words
The synthetic polymer composition according to claim 13 wherein said compound is selected from the group consisting of 1,3,8-triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro[4.5]decane-2,4-dione, 8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]-decane-2,4-dione, 1,3,8-triaza-8-benzyl-7,7,9,9,-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, 3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3-allyl-1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 3,8-bis(2,acetoxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 1,3,8-triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione,
Claim 29
Dependent Claim
4 words
3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, and 1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione.
Claim 30
Dependent Claim
4 words
3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]decane-2,4-dione, 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro[4.5]decane-2,4-dione, and 1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione.
Claim 31
Dependent Claim
226 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC58## wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group or nitroso group; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is hydrogen atom, an alkyl group or a substituted alkyl group; n is an integer of 1 through 4 inclusive; and R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group, an alkylenediphenylene group, a bis-(acyloxyalkylene) group, an alkylene-bis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, a tris-(acyloxyalkylene) group, an alkane-tris-(oxycarbonylalkyl) group or a group of the group ##SPC59## in which p is an integer of 1 through 8 inclusive and p's may be the same or different, and, when n is 4, an alkane tetrayl group, a tetrakis-(acyloxyalkylene) group or an alkanetetrakis(oxycarbonylalkyl) group.
Claim 32
Dependent Claim
226 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC58## wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group or nitroso group; X and Y represent oxygen; Z represents a group of the formula >N-R'" in which R'" is hydrogen atom, an alkyl group or a substituted alkyl group; n is an integer of 1 through 4 inclusive; and R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group, an alkylenediphenylene group, a bis-(acyloxyalkylene) group, an alkylene-bis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, a tris-(acyloxyalkylene) group, an alkane-tris-(oxycarbonylalkyl) group or a group of the group ##SPC59## in which p is an integer of 1 through 8 inclusive and p's may be the same or different, and, when n is 4, an alkane tetrayl group, a tetrakis-(acyloxyalkylene) group or an alkanetetrakis(oxycarbonylalkyl) group.
Claim 33
Dependent Claim
412 words
The synthetic polymer composition according to claim 22 wherein said compound (I) is a member selected from the compounds (I) in which R' represent an alkyl group of 1 to 20 carbon atoms, a hydroxyalkyl group, an allyl group, 2-propynyl group, a cyanoalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an alkylthioalkyl group, an epoxyalkyl group, an acyloxyalkyl group, an alkoxycarbonylalkyl group, an aralkyl group, an acryloyl group, an acryloyl group which is substituted with alkyl or phenyl, an aralkyloxycarbonyl group, an amino group or an amino group which is substituted with aroyl or alkyl; R represents, when n is 1, the above-defined alkyl group, a phenyl or naphtyl group which may be substituted with halogen or alkyl in the aryl moiety, a cycloalkyl group, an alkoxycarbonyl group, an aralkyloxycarbonyl group, the group of the formula ##SPC60## or the group of the formula ##SPC61## when n is 2, a polymethylene group of 1 to 10 carbon atoms, a group of the formula --(CH 2 ) p --CH=CH--(CH 2 ) p -- in which p is an integer of 1 through 8 inclusive and p's may be the same or different, a phenylene group which may be substituted with alkyl, a group of the formula ##SPC62##a group of the formula ##SPC63## a group of the formula ##EQU25## in which p is as defined above and p 1 is an integer of zero through 8 inclusive, a group of the formula ##SPC64## in which p is as defined above, a group of the formula ##EQU26## in which p is as defined above, a group of the formula --(CH 2 ) p --O--(CH 2 ) p -- in which p is as defined above or a group of the formula ##SPC65##when n is 3, a group of the formula ##EQU27## in which p is as defined above, a group of the formula ##EQU28## in which p is as defined above, a group of the formula ##SPC66## in which p is as defined above, a group of the formula ##EQU29## in which p is as defined above or a group of the formula ##SPC67## in which p is as defined above, and, when n is 4, a group of the formula ##EQU30## in which p is as defined above, a group of the formula ##SPC68## in which p is as defined above or a group of the formula ##EQU31## in which p is as defined above, p's being optionally the same or different.
Claim 34
Dependent Claim
113 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC69## wherein R' represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group, a hydroxyalkyl group or an epoxyalkyl group; X and Y represent oxygen; Z represents a group of the formula >N--R'" in which R'" is hydrogen atom or an alkyl group; n is 2, and R represents an alkylene group, a group of the formula ##SPC70## or a group of the formula --(CH 2 ) p --O--(CH 2 ) p -- in which p is an integer of 1 through 8 inclusive.
Claim 35
Dependent Claim
113 words
A synthetic polymer composition stabilized against photo- and thermal-deterioration wherein there is incorporated, in a sufficient amount to prevent said deterioration, a compound having the formula ##SPC69## wherein R' represents an alkyl group, an alkenyl group, an aralkyl group, an acyloxyalkyl group, a hydroxyalkyl group or an epoxyalkyl group; X and Y represent oxygen; Z represents a group of the formula >N--R'" in which R'" is hydrogen atom or an alkyl group; n is 2, and R represents an alkylene group, a group of the formula ##SPC70## or a group of the formula --(CH 2 ) p --O--(CH 2 ) p -- in which p is an integer of 1 through 8 inclusive.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |