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(12) Patent: | (11) CA 2101578 |
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(54) English Title: | PAPER MILL WASTE DEODORANT CONTAINING UNDECYLENIC ACID ESTER |
(54) French Title: | DESODORISANT DES EFFLUENTS DE PAPETRIE A BASE D'ESTER D'ACIDE UNDECYLENIQUE |
Status: | Deemed expired |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | ROBIC |
(74) Associate agent: | |
(45) Issued: | 1999-01-12 |
(22) Filed Date: | 1993-07-29 |
(41) Open to Public Inspection: | 1994-01-31 |
Examination requested: | 1993-07-29 |
Availability of licence: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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The invention relates to the use of esters of undecylenic acid, namely alkyl esters, polyoxyalkylene esters containing 2 to 10 oxyalkylene units, alkyl esters with C1-C12 and polyoxyethylene, polyoxypropylene and poly(oxyethylene)(oxypropylene) esters as a deodorizer for pulp and paper effluent. The invention also relates to compositions characterized in that they are composed of either a mixture of at least two of these esters, or one of these esters associated with an acceptable excipient.
L'invention a pour objet l'usage des esters de
l'acide undécylénique, à savoir des esters alkyliques,
polyoxyalkyléniques renfermant 2 à 10 motifs oxyalkylène,
alkyliques en C1-C12 et des esters de polyoxyéthylène,
polyoxypropylène et poly(oxyéthylène)(oxypropylène) comme
désodorisant des effluents de papeterie. L'invention
concerne également des compositions caractérisées en ce
qu'elles sont constituées soit d'un mélange d'au moins deux
de ces esters, soit d'un de ces esters associé à un
excipient acceptable.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 2101578 was not found.
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Title | Date |
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Forecasted Issue Date | 1999-01-12 |
(22) Filed | 1993-07-29 |
Examination Requested | 1993-07-29 |
(41) Open to Public Inspection | 1994-01-31 |
(45) Issued | 1999-01-12 |
Deemed Expired | 2002-07-29 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Amount Paid | Paid Date |
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Application Fee | $0.00 | 1993-07-29 | ||
Registration of a document - section 124 | $0.00 | 1994-02-04 | ||
Maintenance Fee - Application - New Act | 2 | 1995-07-31 | $100.00 | 1995-06-27 |
Maintenance Fee - Application - New Act | 3 | 1996-07-29 | $100.00 | 1996-06-21 |
Maintenance Fee - Application - New Act | 4 | 1997-07-29 | $100.00 | 1997-06-26 |
Maintenance Fee - Application - New Act | 5 | 1998-07-29 | $150.00 | 1998-06-22 |
Final Fee | $300.00 | 1998-08-25 | ||
Maintenance Fee - Patent - New Act | 6 | 1999-07-29 | $150.00 | 1999-06-18 |
Maintenance Fee - Patent - New Act | 7 | 2000-07-31 | $150.00 | 2000-06-19 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ELF ATOCHEM S.A. |
DELTA AGRO INDUSTRIES |
Past Owners on Record |
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CAUPIN, HENRI-JEAN |
MENASSA, AIME |