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FR2424293A1 - NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACID - Google Patents

NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACID

Info

Publication number
FR2424293A1
FR2424293A1FR7812517AFR7812517AFR2424293A1FR 2424293 A1FR2424293 A1FR 2424293A1FR 7812517 AFR7812517 AFR 7812517AFR 7812517 AFR7812517 AFR 7812517AFR 2424293 A1FR2424293 A1FR 2424293A1
Authority
FR
France
Prior art keywords
acid
polydehydroaspartic
preparation
new process
dehydroaspartic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7812517A
Other languages
French (fr)
Other versions
FR2424293B1 (en
Inventor
Bernard Jacquet
Christos Papantoniou
Gerard Lang
Serge Forestier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SAfiledCriticalLOreal SA
Priority to FR7812517ApriorityCriticalpatent/FR2424293A1/en
Publication of FR2424293A1publicationCriticalpatent/FR2424293A1/en
Application grantedgrantedCritical
Publication of FR2424293B1publicationCriticalpatent/FR2424293B1/fr
Grantedlegal-statusCriticalCurrent

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Abstract

Translated fromFrench

PROCEDE DE PREPARATION D'UN POLYMERE. CE PROCEDE, QUI A POUR OBJET LA PREPARATION DE L'ACIDE POLYDEHYDROASPARTIQUE, EST PRINCIPALEMENT CARACTERISE PAR LE FAIT QUE L'ON CHAUFFE L'ACIDE ASPARTIQUE EN PRESENCE D'UN SOLVANT A HAUT POINT D'EBULLITION, ET D'UNE RESINE ECHANGEUSE D'IONS FORTEMENT ACIDE, A UNE TEMPERATURE DE 200-230C SOUS PRESSION NORMALE PENDANT 2 A 4HEURES. APPLICATION, A L'OBTENTION DE PRODUITS INTERMEDIAIRES UTILISABLES NOTAMMENT DANS LA SYNTHESE D'AMIDES DE L'ACIDE POLY-DEHYDROASPARTIQUE.PROCESS FOR PREPARING A POLYMER. THIS PROCESS, WHICH IS ABOUT THE PREPARATION OF POLYDEHYDROASPARTIC ACID, IS MAINLY CHARACTERIZED BY THE FACT THAT THE ASPARTIC ACID IS HEATED IN THE PRESENCE OF A SOLVENT AT A HIGH BOILING POINT, AND OF AN EXCHANGING RESIN. STRONG ACID IONS, AT 200-230C UNDER NORMAL PRESSURE FOR 2 TO 4 HOURS. APPLICATION, FOR OBTAINING INTERMEDIATE PRODUCTS USED IN PARTICULAR IN THE SYNTHESIS OF AMIDES OF POLY-DEHYDROASPARTIC ACID.

FR7812517A1978-04-271978-04-27 NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACIDGrantedFR2424293A1 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
FR7812517AFR2424293A1 (en)1978-04-271978-04-27 NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACID

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
FR7812517AFR2424293A1 (en)1978-04-271978-04-27 NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACID

Publications (2)

Publication NumberPublication Date
FR2424293A1true FR2424293A1 (en)1979-11-23
FR2424293B1 FR2424293B1 (en)1982-01-08

Family

ID=9207662

Family Applications (1)

Application NumberTitlePriority DateFiling Date
FR7812517AGrantedFR2424293A1 (en)1978-04-271978-04-27 NEW PROCESS FOR THE PREPARATION OF POLYDEHYDROASPARTIC ACID

Country Status (1)

CountryLink
FR (1)FR2424293A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US5389362A (en)*1981-07-031995-02-14Societe Anonyme Dite: L'orealCosmetic compositions for the treatment of the hair and skin contain polymer constituted essentially by repeating units of the β-alanine type
US5552517A (en)*1995-03-031996-09-03Monsanto CompanyProduction of polysuccinimide in an organic medium
US5714138A (en)*1991-12-201998-02-03Hoechst AktiengesellschaftPolyaspartamide derivatives as adsorbents for bile acids, polyaspartamide derivatives loaded with bile acids and process for their preparation and their use as pharmaceuticals

Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR2059475A1 (en)*1969-07-031971-06-04Sclavo Inst Sieroterapeut
FR2158291A1 (en)*1971-11-011973-06-15Kyowa Hakko Kogyo Kk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR2059475A1 (en)*1969-07-031971-06-04Sclavo Inst Sieroterapeut
FR2158291A1 (en)*1971-11-011973-06-15Kyowa Hakko Kogyo Kk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US5389362A (en)*1981-07-031995-02-14Societe Anonyme Dite: L'orealCosmetic compositions for the treatment of the hair and skin contain polymer constituted essentially by repeating units of the β-alanine type
US5714138A (en)*1991-12-201998-02-03Hoechst AktiengesellschaftPolyaspartamide derivatives as adsorbents for bile acids, polyaspartamide derivatives loaded with bile acids and process for their preparation and their use as pharmaceuticals
US6036948A (en)*1991-12-202000-03-14Krone; VolkerPolyaspartamide derivatives as adsordents for bile acids, polyaspartamide derivatives loaded with bile acids and process for their preparation and their use as pharmaceuticals
US5552517A (en)*1995-03-031996-09-03Monsanto CompanyProduction of polysuccinimide in an organic medium

Also Published As

Publication numberPublication date
FR2424293B1 (en)1982-01-08

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