Patent US3341672A successfully refreshed from Google Patents.
Patent US2769014A successfully refreshed from Google Patents.
US2769014A
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Process for the preparation of novel perfumes containing an m-dioxane ring
Assignee: Polak and Schwarzs Escenfabrieken NV
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Filing: 1952-05-16
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Granted: 1956-10-30
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Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Beets Muus Gerrit Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:27
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/04; C07D319/08; C11; C11B; C11B9/00; C11B9/0069; C11B9/0073; C11B9/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR THE PREPARATION OF A SUBSTANCE CONTAINING AN M-DIOXAN RING, WHICH COMPRISES REACTING A SUBSTANCE CONTAINING AT LEAST 90% BY WEIGHT OF A BICYCLIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF INDENE AND ITS HOMOLOGUES AND SUBSTITUTION PRODUCTS, AND 1.2DIHYDRONAPHTHALENE, ITS HOMOLOGUES, WITH AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE AND ITS POLYMERS, THE REACTION MIXTURE CONTAINING AT LEAST TWO MOLS OF THE ALDEHYDE PER MOL OF THE BICYCLIC HYDROCARBON, IN THE PRESENCE OF A MINERAL ACID, THE REACTION COMPOUNDS BEING STIRRED TOGETHER AT AN OPERABLE ELEVATED TEMPERATURE, AND THEREUPON ISOLATING THE SUBSTANCE CONTAINING THE M-DIOXAN RING.
Claim 2
Dependent Claim
101 words
A PROCESS FOR THE PREPARATION OF A SUBSTANCE CONTAINING AN M-DIOXAN RING, WHICH COMPRISES REACTING A SUBSTANCE CONTAINING AT LEAST 90% BY WEIGHT OF A BICYCLIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF INDENE AND ITS HOMOLOGUES AND SUBSTITUTION PRODUCTS, AND 1.2DIHYDRONAPHTHALENE, ITS HOMOLOGUES, WITH AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE AND ITS POLYMERS, THE REACTION MIXTURE CONTAINING AT LEAST TWO MOLS OF THE ALDEHYDE PER MOL OF THE BICYCLIC HYDROCARBON, IN THE PRESENCE OF A MINERAL ACID, THE REACTION COMPOUNDS BEING STIRRED TOGETHER AT AN OPERABLE ELEVATED TEMPERATURE, AND THEREUPON ISOLATING THE SUBSTANCE CONTAINING THE M-DIOXAN RING.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |