ES8201006A1 - Un procedimiento para la obtencion, por ultrafiltracion del lactosuero, de un producto enriquecido en -lactoalbumina - Google Patents

Un procedimiento para la obtencion, por ultrafiltracion del lactosuero, de un producto enriquecido en -lactoalbumina

Info

Publication number
ES8201006A1
ES8201006A1 ES492753A ES492753A ES8201006A1 ES 8201006 A1 ES8201006 A1 ES 8201006A1 ES 492753 A ES492753 A ES 492753A ES 492753 A ES492753 A ES 492753A ES 8201006 A1 ES8201006 A1 ES 8201006A1
Authority
ES
Spain
Prior art keywords
product
ultrafiltration
lactalbumine
lactoserum
alpha
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.)
Expired
Application number
ES492753A
Other languages
English (en)
Other versions
ES492753A0 (es
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.)
Sanofi Aventis France
Original Assignee
Roussel Uclaf 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9227124&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8201006(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Roussel Uclaf SA filed Critical Roussel Uclaf SA
Publication of ES8201006A1 publication Critical patent/ES8201006A1/es
Publication of ES492753A0 publication Critical patent/ES492753A0/es
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
    • A23J1/20—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from milk, e.g. casein; from whey
    • A23J1/205—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from milk, e.g. casein; from whey from whey, e.g. lactalbumine
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; PREPARATION THEREOF
    • A23C9/00—Milk preparations; Milk powder or milk powder preparations
    • A23C9/14—Milk preparations; Milk powder or milk powder preparations in which the chemical composition of the milk is modified by non-chemical treatment
    • A23C9/142—Milk preparations; Milk powder or milk powder preparations in which the chemical composition of the milk is modified by non-chemical treatment by dialysis, reverse osmosis or ultrafiltration
    • A23C9/1425—Milk preparations; Milk powder or milk powder preparations in which the chemical composition of the milk is modified by non-chemical treatment by dialysis, reverse osmosis or ultrafiltration by ultrafiltration, microfiltration or diafiltration of whey, e.g. treatment of the UF permeate
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/827—Proteins from mammals or birds
    • Y10S530/832—Milk; colostrum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/827—Proteins from mammals or birds
    • Y10S530/833—Whey; cheese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Water Supply & Treatment (AREA)
  • Biochemistry (AREA)
  • Dairy Products (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Peptides Or Proteins (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

PROCEDIMIENTO DE OBTENCION, POR ULTRAFILTRACION DEL LACTOMERO, DE UN PRODUCTO ENRIQUECIDO EN A-LACTOALBUMINA. CONSTA DE LAS SIGUIENTE ETAPAS: 1.) UNA PRIMERA ULTRAFILTRACION CON MEMBRANAS DE UN UMBRAL DE CORTE SUPERIOR A 5000, SIENDO REALIZADA SOBRE UN LACTOMERO BRUTO, A UN PH AL MENOS IGUAL A 6,3. 2.) UNA SEGUNDA ULTRAFILTRACION CON UNA MEMBRANA CAPAZ DE RETENER LA A-LACTOALBUMINA CON UN PODER DE CORTE INFERIOR A 5000. EL LACTOMERO EMPLEADO NO HA SUFRIDO TRATAMIENTO TERMICO PREVIO (PASTERIZACION). LA REGULACION DEL PH SE HACE MEDIANTE COMPUESTOS DE REACCION BASICA, TAL COMO HIDROXIDO DE SODIO, DE POTASIO, CARBONATO DE SODIO, DE POTASIO O ANALOGOS.
ES492753A 1979-06-26 1980-06-25 Un procedimiento para la obtencion, por ultrafiltracion del lactosuero, de un producto enriquecido en -lactoalbumina Granted ES492753A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7916482A FR2459619B1 (fr) 1979-06-26 1979-06-26 Procede pour l'obtention a partir de lactoserum, d'un produit enrichi en alpha-lactalbumine et applications dudit procede

Publications (2)

Publication Number Publication Date
ES8201006A1 true ES8201006A1 (es) 1981-11-01
ES492753A0 ES492753A0 (es) 1981-11-01

Family

ID=9227124

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492753A Granted ES492753A0 (es) 1979-06-26 1980-06-25 Un procedimiento para la obtencion, por ultrafiltracion del lactosuero, de un producto enriquecido en -lactoalbumina

Country Status (14)

Country Link
US (2) US4485040A (es)
EP (1) EP0022696B2 (es)
JP (1) JPS5636494A (es)
AR (1) AR222560A1 (es)
AU (1) AU538288B2 (es)
BR (1) BR8003973A (es)
CA (1) CA1136919A (es)
DE (1) DE3063675D1 (es)
DK (1) DK155907C (es)
ES (1) ES492753A0 (es)
FI (1) FI67654C (es)
FR (1) FR2459619B1 (es)
NO (1) NO151567C (es)
ZA (1) ZA803748B (es)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113848A (ja) * 1982-12-20 1984-06-30 Meiji Milk Prod Co Ltd ホエ−又はホエ−蛋白濃縮物の精製法
GB2132466B (en) * 1982-12-22 1986-10-15 Impro Products Inc Whey product and method for obtaining same
US4834974A (en) * 1986-01-13 1989-05-30 Protein Technologies, Inc. Immunologically active whey fraction and recovery process
US4816252A (en) * 1985-04-15 1989-03-28 Protein Technology, Inc. Product and process for transferring passive immunity to newborn domestic animals using ultrafiltered whey containing immunoglobulins
FR2583267B1 (fr) * 1985-06-17 1990-10-19 Bridel Laiteries Procede de separation des proteines du lactoserum
JPS6283843A (ja) * 1986-09-11 1987-04-17 Meiji Milk Prod Co Ltd 育児用調製乳
CA1297721C (en) * 1987-01-26 1992-03-24 Shalan A. Al-Mashiki PROCESS FOR LOWERING THE CONCENTRATION OF .beta.-LACTOGLOBULIN IN CHEESE WHEY
CH671879A5 (es) * 1987-02-26 1989-10-13 Nestle Sa
FR2611527A1 (fr) * 1987-02-26 1988-09-09 Sfec Membrane inorganique d'ultrafiltration ou de microfiltration modifiee par un polymere hydrophile, son procede de preparation et son utilisation pour la separation de proteines
DE3885459T2 (de) * 1987-05-14 1994-03-24 Commw Scient Ind Res Org Molkeproteinfraktionen.
GB8723651D0 (en) * 1987-10-08 1987-11-11 Express Foods Group Ltd Process for containing concentrates
DE3743440A1 (de) * 1987-12-21 1989-06-29 Gauri Kailash Kumar Verfahren zum trennen der geloesten und ungeloesten bestandteile von milch
CA1333471C (en) * 1988-04-29 1994-12-13 Gustavo Bounous Whey protein concentrate as food supplement
US5230902A (en) * 1988-04-29 1993-07-27 Immunotec Research Corporation Undenatured whey protein concentrate to improve active systemic humoral immune response
US4897465A (en) * 1988-10-12 1990-01-30 Abbott Laboratories Enrichment and concentration of proteins by ultrafiltration
CA1338682C (en) * 1988-12-23 1996-10-29 Gustavo Bounous Biologically active undenatured whey protein concentrate as food supplement
US5064674A (en) * 1989-01-13 1991-11-12 Immunopath Profile, Inc. Hypoallergenic milk products and process of making
US5204134A (en) * 1989-01-13 1993-04-20 Immuno Path Profile, Inc. Hypoallergenic milk products from natural and/or synthetic components and process of making
US5116819A (en) * 1989-05-05 1992-05-26 Clintec Nutrition Co. Enteral diet for patients with pulmonary disease
FR2657013B1 (fr) * 1990-01-18 1992-05-15 Medgenix Group Sa Composition dietetique a base de polypeptides et acides amines.
US5219838A (en) * 1990-07-09 1993-06-15 Morinaga Milk Industry Co., Ltd. Method for inhibiting tyrosinase activity in treatment of skin
JP3035833B2 (ja) * 1991-01-21 2000-04-24 雪印乳業株式会社 シアル酸類含有組成物の製造方法
JP2961625B2 (ja) * 1991-01-21 1999-10-12 雪印乳業株式会社 α−ラクトアルブミン含有量の高い組成物の製造方法
JP3044487B2 (ja) * 1991-02-28 2000-05-22 雪印乳業株式会社 シアル酸類を含有しα−ラクトアルブミン含有量の高い組成物の製造方法
JPH05183457A (ja) * 1992-01-07 1993-07-23 Fujitsu Ltd 無線受信機
JP2622789B2 (ja) * 1992-02-18 1997-06-18 雪印乳業株式会社 ホエーからα−ラクトアルブミン含有量の高い画分を製造する方法及び該画分を含有せしめてなる母乳代替物または栄養組成物
SE470375B (sv) * 1992-05-07 1994-02-07 Alfa Laval Food Eng Ab Sätt att erhålla högvärdiga proteinprodukter ur vassle
DE69220374T2 (de) 1992-12-23 1998-01-15 Campina Melkunie Bv Verfahren zur Gewinnung von Alpha-Lactalbumin und Beta-Lactoglobulin aus einem Molkeproteinprodukt
US5310877A (en) * 1993-04-08 1994-05-10 E. I. Du Pont De Nemours And Company Method for separating serum albumin and gamma globulin
US5470839A (en) * 1993-04-22 1995-11-28 Clintec Nutrition Company Enteral diet and method for providing nutrition to a diabetic
US5395636A (en) * 1993-07-26 1995-03-07 Pall Corporation Method of pretreating a porous medium
DE4344342C2 (de) * 1993-12-23 1996-08-08 Milupa Ag Molkenprotein-dominante Säuglingsnahrung
ZA949789B (en) * 1993-12-30 1995-10-25 Immunotec Res Corp Ltd Process for making undenatured whey protein concentrate
ES2150997T3 (es) * 1994-02-25 2000-12-16 Nestle Sa Composicion enteral que comprende caseina micelaria nativa.
ATE176130T1 (de) * 1994-06-15 1999-02-15 Dairygold Tech Ltd Verfahren zur fraktionierung von molkebestandteilen
WO1996004929A1 (en) * 1994-08-16 1996-02-22 Hemant Sabharwal Antibacterial composition containing multimeric alpha-lactalbumin
US5707678A (en) * 1995-04-12 1998-01-13 Galagen Inc. Method for microfiltration of milk or colostral whey
US5670196A (en) * 1995-04-12 1997-09-23 Galagen Inc. Method for microfiltration of milk or colostral whey
US6268487B1 (en) 1996-05-13 2001-07-31 Genzyme Transgenics Corporation Purification of biologically active peptides from milk
FR2754181B1 (fr) 1996-10-03 1998-12-04 Oenobiol S A Lab Nouvelles utilisations de compositions a base d'alpha-lactalbumine
EP1073345B1 (fr) * 1998-04-23 2007-10-24 Pro Dietic RDP (S.A.R.L.) Complement proteique, composition alimentaire le contenant, leur procede de preparation et leur utilisation
FR2777751B1 (fr) * 1998-04-23 2001-11-02 Pro Dietic Rdp Complement proteique, composition alimentaire le contenant, leur procede de preparation et leur utilisation.
US5948452A (en) * 1998-08-31 1999-09-07 Monte; Woodrow C. Process for producing low pH by-products from waste products of cheese production
GB9923048D0 (en) 1999-09-29 1999-12-01 Nestle Sa Composition comprising casein protein and whey protein
US6312755B1 (en) 1999-07-16 2001-11-06 Ampc Whey treatment process for achieving high concentration of α-lactalbumin
JP2003532681A (ja) * 2000-05-05 2003-11-05 ジーティーシー バイオセラピューティックス インコーポレイテッド 遺伝子導入により産生されたデコリン
SE516838C2 (sv) * 2000-06-16 2002-03-12 Delaval Holding Ab Metod och anordning för separering av mjölk
US6423354B1 (en) 2000-09-01 2002-07-23 Woodrow C. Monte Low pH antimicrobial food composition from total milk protein and process of manufacturing same
CA2431842C (en) * 2000-12-06 2011-08-09 Campina Melkunie B.V. Method for preparing tryptophan rich peptides
EP1228707A1 (en) * 2001-02-01 2002-08-07 Campina Melkunie B.V. Use of alpha-lactalbumin as prebiotic agent
US7651716B2 (en) * 2001-12-21 2010-01-26 Wyeth Llc Methods for reducing adverse effects of feeding formula to infants
US6913778B2 (en) * 2001-12-21 2005-07-05 Wyeth Infant formula compositions comprising increased amounts of alpha-lactalbumin
US20030166866A1 (en) * 2002-01-28 2003-09-04 Land O' Lakes, Inc. Method of processing a proteinaceous material to recover K-casein macropeptide and polymers of a-lactalbumin and B-lactoglobulin
US7285301B2 (en) 2002-07-12 2007-10-23 Entra-Safe, Inc. Method for producing nutritionally balanced food compositions
US6921548B2 (en) * 2002-07-12 2005-07-26 Entra-Safe, Inc. Low pH food composition stabilization process
BR0316643A (pt) * 2002-11-27 2005-10-11 Gtc Biotherapeutics Inc Anticorpos modificados estavelmente produzidos no leite e método de produzir os mesmos
AU2004229176A1 (en) * 2003-04-15 2004-10-28 Campina B.V. Method for producing a whey protein concentrate enriched in beta-lactoglobulin and texture enhancer based thereupon for use in dairy products
US20060051347A1 (en) 2004-09-09 2006-03-09 Winter Charles M Process for concentration of antibodies and therapeutic products thereof
US20080019905A9 (en) * 2005-02-18 2008-01-24 Strome Scott E Method of using an anti-CD137 antibody as an agent for radioimmunotherapy or radioimmunodetection
ES2642787T3 (es) * 2005-10-21 2017-11-20 Lfb Usa, Inc. Anticuerpos con actividad de citotoxicidad celular dependiente de anticuerpos mejorada, métodos para su producción y uso
US20110229460A1 (en) * 2008-05-01 2011-09-22 Gtc Biotherapeutics, Inc. anti-cd137 antibody as an agent in the treatment of inflammatory conditions
CN102595923B (zh) * 2009-10-12 2015-06-24 弗里斯兰康必奶荷兰控股有限公司 乳清蛋白浓缩物及其制备与用途
KR101166546B1 (ko) 2009-11-20 2012-07-19 매일유업주식회사 유기태화 칼슘 함유량이 높은 유단백질의 제조방법
US9155775B1 (en) 2015-01-28 2015-10-13 Teva Pharmaceutical Industries, Ltd. Process for manufacturing glatiramer acetate product
US11918006B2 (en) 2016-05-12 2024-03-05 Arla Foods Amba Whey preparation for improving brain development
AU2017293780A1 (en) 2016-07-06 2019-02-21 Building Block Nutritionals, Llc Nutritional formula
KR102593408B1 (ko) * 2016-09-19 2023-10-25 프롤랙타 바이오사이언스, 인코포레이티드 정제된 인간 모유 올리고당 조성물
PL3813549T3 (pl) 2018-06-27 2026-03-09 Arla Foods Amba Preparat napoju z beta-laktoglobuliną o obojętnym ph
JP7431181B2 (ja) * 2018-06-27 2024-02-14 アーラ フーズ エイエムビーエイ アルファ－ラクトアルブミン強化組成物を調製するための新規方法、関連製品及び乳児用調製粉乳等での使用
AU2020354581A1 (en) 2019-09-24 2022-03-03 Prolacta Bioscience, Inc. Compositions and methods for treatment of inflammatory and immune diseases
WO2021257543A1 (en) 2020-06-15 2021-12-23 Building Block Nutritionals, Llc Nutritional formula
PL4250939T3 (pl) * 2020-11-27 2025-03-31 Arla Foods Amba Nowa kompozycja lipidów pochodzących z mleka wzbogacona w cholesterol, odpowiednia do żywienia niemowląt, sposób wytwarzania i kompozycje odżywcze zawierające kompozycję lipidów pochodzących z mleka
JP2023149412A (ja) * 2022-03-31 2023-10-13 雪印メグミルク株式会社 グリコマクロペプチドおよびαラクトアルブミン含有組成物の製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125137A1 (en) * 1971-02-12 1972-09-29 Genvrain Sa Delactosed milk prepn - by ultra filtration of milk followed by inverse osmosis to separate lactose
FR2239208B1 (es) * 1973-07-31 1977-10-07 Nestle Sa
US4036999A (en) * 1974-08-30 1977-07-19 Stauffer Chemical Company Treatment of whey
FR2288473A1 (fr) * 1974-10-22 1976-05-21 Manche Union Coop Agr Laiti Procede de traitement du lactoserum de fromagerie, notamment en vue de l'extraction de glycoproteides et d'acide sialique
US4163069A (en) * 1977-10-11 1979-07-31 Stauffer Chemical Company Non-fat dry milk substitute product
CH630243A5 (fr) * 1978-05-11 1982-06-15 Nestle Sa Procede de recuperation des proteines du lactoserum.

Also Published As

Publication number Publication date
JPH0362720B2 (es) 1991-09-26
FI67654C (fi) 1985-05-10
FR2459619B1 (fr) 1983-07-29
US4711953A (en) 1987-12-08
DK155907C (da) 1989-10-16
DK273380A (da) 1980-12-27
ZA803748B (en) 1981-06-24
EP0022696B2 (fr) 1990-08-16
NO151567C (no) 1985-05-08
EP0022696A1 (fr) 1981-01-21
DE3063675D1 (en) 1983-07-14
US4485040A (en) 1984-11-27
FR2459619A1 (fr) 1981-01-16
ES492753A0 (es) 1981-11-01
EP0022696B1 (fr) 1983-06-08
JPS5636494A (en) 1981-04-09
NO151567B (no) 1985-01-21
BR8003973A (pt) 1981-01-13
DK155907B (da) 1989-06-05
FI802010A7 (fi) 1980-12-27
NO801903L (no) 1980-12-29
AU5966680A (en) 1981-01-08
FI67654B (fi) 1985-01-31
CA1136919A (en) 1982-12-07
AU538288B2 (en) 1984-08-09
AR222560A1 (es) 1981-05-29

Similar Documents

Publication Publication Date Title
ES433720A1 (es) Un procedimiento para preparar los compuestos 3-ariloxi-3- fenilpropilamina.
DE3063088D1 (en) Method of forming an aqueous dialysis solution
GR69913B (es)
JPS537760A (en) Modified keratin membrane
ES2109412T3 (es) (-)-cimaterol en esencia opticamente puro y sus sales por adicion de acidos, asi como su empleo como medicamento o favorecedor del rendimiento.
ES2017593T3 (es) Procedimiento para la produccion de glifosato a partir de n-fosfonometil-2-oxazolidona.
ES8205416A1 (es) Un procedimiento para obtener el factor a2 del antibiotico a-16686.
JPS5236589A (en) Membrane of cation exchange resin containing fluorine
DE3262622D1 (en) Preparation of a glutaraldehyde precursor
ES2116519T3 (es) Procedimiento de fabricacion de una membrana bipolar y procedimiento de fabricacion de una solucion acuosa de hidroxido de metal alcalino.
FR2332341B1 (es)
JPS5223192A (en) Preparation of improved fluoropolymer bearing cation exchange groups
FR2351080A1 (fr) Procede de preparation de composes aliphatiques tertiaires optiquement actifs
FR2151556A5 (es)
IT7821215A0 (it) Procedimento per la concentrazione di una soluzione alcalina caustica prodotta mediante elettrolisi del tipo a membrana a scambio di ioni.
JPS5315282A (en) Production of cation exchange membrane
IL61014A (en) Manufacture of 4-amino-5-chloro-1-phenylpyridaz-6-one
JPS5220980A (en) Fluororesin cation exchange membrane for electrolysis
KR790000143B1 (en) Method for preparation of cyanophenyl carbonate
DK544887A (da) Fremgangsmaade til fremstilling af betahydroxysmoersyre og dennes salte
JPS5224995A (en) Improved fluororesin cation exchange membrane
JPS51126398A (en) Electrolysis of sodium chloride solution
ES2066534T3 (es) Procedimiento para la oxidacion de derivados de hidroximetilpiridina en derivados de acido piridincarboxilico.
BG47345A3 (en) Method for preparing of dialkyloxalacetates
JPS5426976A (en) Production of improved cation exchange membrane

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001