Patent US4115476A successfully refreshed from Google Patents.
US4115476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,2,6,6-Tetramethyl-4-piperidyl carbonic acid esters of dihydric alcohols and phenols as stabilizers for synthetic polymers
Assignee: Argus Chemical Corp
•
Filing: 1977-05-05
•
Granted: 1978-09-19
•
Expires: 1997-05-05
Abstract
Abstract 2,2,6,6-Tetramethyl-4-piperidyl carbonic acid esters of dihydric alcohols and phenols are provided, useful as stabilizers for organic polymeric materials, and having the general formula: <IMAGE> I wherein:
Inventors
- 👤 Motonobu Minagawa
- 👤 Naohiro Kubota
- 👤 Toshihiro Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/46
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
11 words
A 2,2,6,6-tetramethyl-4-piperidyl carbonic acid ester having the general formula: ##STR80## wherein:
Claim 2
Dependent Claim
11 words
A 2,2,6,6-tetramethyl-4-piperidyl carbonic acid ester having the general formula: ##STR80## wherein:
Claim 3
Dependent Claim
26 words
R 1 and R 2 are selected from the group consisting of ##STR81## the R 1 and R 2 groups can be the same or different;
Claim 4
Dependent Claim
26 words
R 1 and R 2 are selected from the group consisting of ##STR81## the R 1 and R 2 groups can be the same or different;
Claim 5
Dependent Claim
12 words
R 3 is selected from the group consisting of hydrogen and O.sup..;
Claim 6
Dependent Claim
12 words
R 3 is selected from the group consisting of hydrogen and O.sup..;
Claim 7
Dependent Claim
5 words
R 6 is lower alkyl;
Claim 8
Dependent Claim
5 words
R 6 is lower alkyl;
Claim 9
Dependent Claim
76 words
n is selected from the group consisting of 1, 2, 3, 4 and 5; and Z of--O--Z--O--is selected from the group consisting of bivalent aliphatic, cycloaliphatic, aromatic, mixed aliphatic-aromatic, aliphatic-cycloaliphatic and cycloaliphatic-aromatic radicals, and oxyalkylene radicals including ether --O-- and thioalkylene radicals including thioether --S-- linking groups between alkylene groups, having from one to about five oxy or thio groups and from two to about six alkylene groups having from two to about six carbon atoms.
Claim 10
Dependent Claim
76 words
n is selected from the group consisting of 1, 2, 3, 4 and 5; and Z of--O--Z--O--is selected from the group consisting of bivalent aliphatic, cycloaliphatic, aromatic, mixed aliphatic-aromatic, aliphatic-cycloaliphatic and cycloaliphatic-aromatic radicals, and oxyalkylene radicals including ether --O-- and thioalkylene radicals including thioether --S-- linking groups between alkylene groups, having from one to about five oxy or thio groups and from two to about six alkylene groups having from two to about six carbon atoms.
Claim 11
Dependent Claim
11 words
A compound according to claim 1 in which n is 1.
Claim 12
Dependent Claim
11 words
A compound according to claim 1 in which n is 2.
Claim 13
Dependent Claim
11 words
A compound according to claim 1 in which n is 3.
Claim 14
Dependent Claim
12 words
A compound according to claim 1 in which R 3 is hydrogen.
Claim 15
Dependent Claim
12 words
A compound according to claim 1 in which R 3 is O.sup...
Claim 16
Dependent Claim
12 words
A compound according to claim 1 in which R 6 is methyl.
Claim 17
Dependent Claim
19 words
A compound according to claim 1 in which at least one of R 1 and R 2 is ##STR82##
Claim 18
Dependent Claim
19 words
A compound according to claim 1 in which at least one of R 1 and R 2 is ##STR83##
Claim 19
Dependent Claim
19 words
A compound according to claim 1 in which at least one of R 1 and R 2 is ##STR84##
Claim 20
Dependent Claim
19 words
A compound according to claim 1 in which at least one of R 1 and R 2 is ##STR85##
Claim 21
Dependent Claim
19 words
A compound according to claim 1 in which Z is alkylene having from two to about 24 carbon atoms.
Claim 22
Dependent Claim
12 words
A compound according to claim 12 in which Z is neopentylene ##STR86##
Claim 23
Dependent Claim
11 words
A compound according to claim 12 in which Z is hexylene.
Claim 24
Dependent Claim
20 words
A compound according to claim 1 in which Z is bis-(cycloalkylene) alkylidene having from fifteen to about twenty-four carbon atoms.
Claim 25
Dependent Claim
12 words
A compound according to claim 15 in which Z is bis-(cyclohexylene) isopropylidene.
Claim 26
Dependent Claim
12 words
A compound according to claim 1 in which Z is bis-(phenylene) alkylidene.
Claim 27
Dependent Claim
12 words
A compound according to claim 17 in which Z is bis-(phenylene) isopropylidene.
Claim 28
Dependent Claim
10 words
A compound according to claim 1 having the formula: ##STR87##
Claim 29
Dependent Claim
10 words
A compound according to claim 1 having the formula: ##STR88##
Claim 30
Dependent Claim
10 words
A compound according to claim 1 having the formula: ##STR89##
Claim 31
Dependent Claim
10 words
A compound according to claim 1 having the formula: ##STR90##
Claim 32
Dependent Claim
10 words
A compound according to claim 1 having the formula: ##STR91##
Claim 33
Dependent Claim
28 words
A polyvinyl chloride resin composition having improved resistance to deterioration when heated at 350° F., comprising a polyvinyl chloride resin and a compound in accordance with claim 1.
Claim 34
Dependent Claim
20 words
A polyvinyl chloride resin composition in accordance with claim 24, in which the polyvinyl chloride resin is polyvinyl chloride homopolymer.
Claim 35
Dependent Claim
25 words
A polyvinyl chloride resin composition in accordance with claim 24, in which the polyvinyl chloride resin in a copolymer of vinyl chloride and vinyl acetate.
Claim 36
Dependent Claim
39 words
An olefin polymer composition having improved resistance to deterioration comprising an olefin polymer selected from the group consisting of polymers of alpha-olefins having from two to six carbon atoms and polystyrene, and a compound in accordance with claim 1.
Claim 37
Dependent Claim
14 words
An olefin polymer composition in accordance with claim 27 wherein the polyolefin is polypropylene.
Claim 38
Dependent Claim
14 words
An olefin polymer composition in accordance with claim 27 wherein the polyolefin is polyethylene.
Claim 39
Dependent Claim
24 words
An acrylonitrile-butadiene-styrene polymer having its resistance to deterioration when heated at 300° F. and above enhanced by a compound in accordance with claim 1.
Claim 40
Dependent Claim
21 words
A polyester polymer composition having improved resistance to deterioration comprising a polyester polymer and a compound in accordance with claim 1.
Claim 41
Dependent Claim
21 words
A polyurethane resin composition having improved resistance to deterioration comprising a polyurethane resin and a compound in accordance with claim 1.
Claim 42
Dependent Claim
23 words
An ethylene-vinyl acetate copolymer composition having improved resistance to deterioration comprising an ethylene-vinyl acetate copolymer and a compound in accordance with claim 1.
References Cited (Backward Citations)
US2379250A
Cited
US2746964A
Cited
US2856407A
Cited
US3551520A
Cited
US3640928A
Cited
US3632828A
Cited
US3840494A
Cited
US3816373A
Cited
US3992390A
Cited
US4016168A
Cited
US4007158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |