US3839273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-substituted piperidine derivatives, process for preparing the same and their use as stabilizers
Assignee: Sankyo Co Ltd
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Filing: 1972-11-27
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Granted: 1974-10-01
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Expires: 1992-11-27
Abstract
Abstract A synthetic polymer composition stabilized against photo- and thermal deterioration is disclosed. The stabilization is obtained by incorporating in the composition an effective amount of defined N-substituted piperidine derivatives.
Inventors
- 👤 K Murayama
- 👤 S Morimura
- 👤 T Kurumada
- 👤 N Ohta
- 👤 S Higashida
- 👤 K Matsui
- 👤 E Mori
- 👤 H Horiuchi
- 👤 T Yoshioka
- 👤 T Toda
- 👤 H Ohsawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
26 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
Claim 2
Dependent Claim
26 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
Claim 3
Dependent Claim
18 words
A synthetic polymer composition according to claim 1 wherein said compound (I) is a compound having the formula
Claim 4
Dependent Claim
32 words
A synthetic polymer composition according to claim 1 wherein said compound (I) is incorporated in an amount of 0.01 - 5.0 percent by weight, based upon the amount of the synthetic polymer.
Claim 5
Dependent Claim
26 words
A synthetic polymer compOsition according to claim 1 wherein said polymer is a homopolymer of olefins or a copolymer of olefins with other ethylenically unsaturated monomers.
Claim 6
Dependent Claim
39 words
A synthetic polymer composition according to claim 1 wherein said polymer is a vinyl chloride homopolymer, vinylidene chloride homopolymer, vinyl chloride-vinylidene copolymer, or a copolymer of vinyl chloride or vinylidene chloride with vinyl acetate or other ethylenically unsaturated monomers.
Claim 7
Dependent Claim
14 words
A synthetic polymer composition according to claim 1 wherein said polymer is a polyurethane.
Claim 8
Dependent Claim
26 words
A synthetic polymer composition according to claim 1 wherein said polymer is a polyamide having recurring amide groups as integral parts of the main polymer chain.
Claim 9
Dependent Claim
14 words
A synthetic polymer composition according to claim 1 wherein said polymer is acrylonitrile-butadiene-styrene copolymer.
Claim 10
Dependent Claim
31 words
A synthetic polymer composition according to claim 1 wherein said compound (I) is selected from the group consisting of 8-aza-8-( Beta -hydroxyethyl)-7,7,9,9-tetramethyl-1,4-dioxa-spiro(4.5)decane, 8-aza-8-benzyl-7,7,9,9-tetramethyl-1,4-dioxa-spiro(4.5)-decane, 1,2,2,6,6-pentamethyl-4,4-(o-phenylenedioxy)piperidine, 8-aza-8-( Beta -decanoyloxyethyl)-7,7,9,9-tetramethyl-1,4-dioxa-spiro(4.5)decane, and 8-( Beta -acryloyloxyethyl)-8-aza-7,7,9,9-tetramethyl-1,4-dioxa-spiro(4.5)decane.
Claim 11
Dependent Claim
30 words
A synthetic polymer composition as claimed in claim 1, wherein R1 is aralkyl, the aryl moiety of which is substituted by alkyl of one to three carbon atoms or halogen.
Claim 12
Dependent Claim
30 words
A synthetic polymer composition as claimed in claim 2, wherein R1 is aralkyl, the aryl moiety of which is substituted by alkyl of one to three carbon atoms or halogen.
References Cited (Backward Citations)
US3640928A
Cited
US3692778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |