US3684765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of synthetic polymers
Assignee: Sankyo Co Ltd
•
Filing: 1970-08-06
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Granted: 1972-08-15
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Expires: 1990-08-06
Abstract
Abstract A synthetic polymer composition is disclosed which is stabilized against photo- and thermal deterioration by incorporating in the composition an effective amount of a 4-aminopiperidine derivative.
Inventors
- 👤 Katsuaki Matsui
- 👤 Tomoyuki Kurumada
- 👤 Noriyuki Ohta
- 👤 Ichiro Watanabe
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:21
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; C07D211/56; C07D211/58; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/576; C07F9/59
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
32 words
The synthetic polymer composition according to claim 1 wherein said 4-aminopiperidine derivative is incorporated in an amount of 0.01 - 5.0 percent by weight, based upon the amount of the synthetic polymer.
Claim 2
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyolefin.
Claim 3
Dependent Claim
15 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyvinyl chloride.
Claim 4
Dependent Claim
14 words
The synthetic polymer composition according to claim 1 wherein said polymer is a polyurethane.
Claim 5
Dependent Claim
42 words
The synthetic polymer composition according to claim 1 wherein said 4-aminopiperidine derivative is selected from the group consisting of 4-acetamido-2,2,6,6-tetramethylpiperidine, 4-stearamido-2,2,6,6-tetramethylpiperidine, 4-acrylamido-2,2,6,6-tetramethylpiperidine, 4-methacrylamido-2,2,6,6-tetramethylpiperidine, 1-acryloyl-4-acrylamido-2,2,6,6-tetramethylpiperidine, 4-benzamido-2,2,6,6-tetramethylpiperidine, 4-(3-benzylureido)-2,2,6,6-tetramethylpiperidine, 4-(3-cyclohexylureido)-2,2,6,6-tetramethylpiperidine, 4-(3-phenylureido)-2,2,6,6-tetramethylpiperidine, 4-(p-toluenesulfonamido)-2,2,6,6-tetramethylpiperidine, 4-(4-hydroxy-3,5-di-tert.butylbenzylamino)-2,2,6,6-tetramethylpiperidine, 4-(N-benzoyloxyethylbenzamido)-2,2,6,6-tetramethylpiperidine, 4-(N-benzylbenzamido)-2,2,6,6-tetramethylpiperidine, 4-phthalimido-2,2,6,6-tetramethylpiperdine, N,N''-bis(2,2,6,6-tetramethyl-4-piperidyl)malonamide, N,N''-bis(2,2,6,6-tetramethyl-4-piperidyl)adipamide, N,N''-bis(2,2,6,6-tetramethyl-4-piperidyl)terephthalamide, p,p''-bis(3-(2,2,6,6-tetramethyl-4-piperidyl)ureido)-diphenylmethane, 2,4-bis(3-(2,2,6,6-tetramethyl-4-piperidyl)ureido) -toluene, and tris(2,2,6,6-tetramethyl-4-piperidylamino)phosphine oxide.
References Cited (Backward Citations)
US3431232A
Cited
US3503982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |