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US4125533A
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Piperidine derivatives
Assignee: Sankyo Co Ltd
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Filing: 1976-12-23
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Granted: 1978-11-14
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Expires: 1996-12-23
Abstract
Abstract A novel piperidine derivative having a stabilizing effect on a synthetic polymeric material and a composition comprising said piperidine derivative and a synthetic polymeric material.
Inventors
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
- 👤 Takao Yoshioka
- 👤 Toshimasa Toda
- 👤 Eiko Mori
- 👤 Hideo Horiuchi
- 👤 Susumu Higashida
- 👤 Katsuaki Matsui
- 👤 Tomoyuki Kurumada
- 👤 Noriyuki Ohta
- 👤 Hisayou Osawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A compound having the formula ##STR18## wherein R 1 and R 6 are the same or different and each of which represents hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a substituted alkyl group having 1 to 3 carbon atoms it its alkyl selected from the group consisting of a hydroxyalkyl, an alkoxyalkyl having 1 to 4 carbon atoms in its alkoxy portion, an alkanoyloxyalkyl having 2 to 18 carbon atoms in the alkanoyl moiety, an alkenoyloxyalkyl having 3 or 4 carbon atoms in the alkenoyl moiety, a benzoyloxyalkyl, a cyanoalkyl, a halogenoalkyl, an epoxyalkyl or an alkoxycarbonylalkyl having 1 to 4 carbon atoms in its alkoxy portion, an alkenyl group having 3 to 4 carbon atoms, an alkylnyl group having 3 to 4 carbon atoms, a benzyl group, a benzyl group substituted with a halogen or methyl, an alkoxycarbonyl group having 2 to 5 carbon atoms, or a benzoyloxycarbonyl group.
Claim 2
Dependent Claim
154 words
A compound having the formula ##STR18## wherein R 1 and R 6 are the same or different and each of which represents hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a substituted alkyl group having 1 to 3 carbon atoms it its alkyl selected from the group consisting of a hydroxyalkyl, an alkoxyalkyl having 1 to 4 carbon atoms in its alkoxy portion, an alkanoyloxyalkyl having 2 to 18 carbon atoms in the alkanoyl moiety, an alkenoyloxyalkyl having 3 or 4 carbon atoms in the alkenoyl moiety, a benzoyloxyalkyl, a cyanoalkyl, a halogenoalkyl, an epoxyalkyl or an alkoxycarbonylalkyl having 1 to 4 carbon atoms in its alkoxy portion, an alkenyl group having 3 to 4 carbon atoms, an alkylnyl group having 3 to 4 carbon atoms, a benzyl group, a benzyl group substituted with a halogen or methyl, an alkoxycarbonyl group having 2 to 5 carbon atoms, or a benzoyloxycarbonyl group.
Claim 3
Dependent Claim
59 words
A compound as claimed in claim 1 wherein both of R 1 and R 6 are hydrogen atom, alkyl groups having 1 to 4 carbon atoms, allyl groups, benzyl groups, alkoxycarbonylmethyl groups having 1 to 4 carbon atoms in their alkoxy portion, 2,3-epoxypropyl groups, alkanoyloxyethyl having 2 to 18 carbon atoms, or alkanoyl having 2 to 4 carbon atoms.
Claim 4
Dependent Claim
23 words
A compound as claimed in claim 1 wherein both of R 1 and R 6 are hydrogen atoms, methyl groups, or allyl groups.
Claim 5
Dependent Claim
6 words
A compound having the formula ##STR19##
Claim 6
Dependent Claim
6 words
A compound having the formula ##STR19##
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) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |