WO1995023779A3 - Process for making monoacetals of hydroquinone - Google Patents
Process for making monoacetals of hydroquinone Download PDFInfo
- Publication number
- WO1995023779A3 WO1995023779A3 PCT/US1995/002738 US9502738W WO9523779A3 WO 1995023779 A3 WO1995023779 A3 WO 1995023779A3 US 9502738 W US9502738 W US 9502738W WO 9523779 A3 WO9523779 A3 WO 9523779A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydroquinone
- monoacetals
- yields
- making
- purity
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/30—Compounds having groups
- C07C43/315—Compounds having groups containing oxygen atoms singly bound to carbon atoms not being acetal carbon atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
- A61K8/498—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom having 6-membered rings or their condensed derivatives, e.g. coumarin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/347—Phenols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/368—Carboxylic acids; Salts or anhydrides thereof with carboxyl groups directly bound to carbon atoms of aromatic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
- A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/41—Amines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/42—Amides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
- A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4986—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with sulfur as the only hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/55—Phosphorus compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
- C07C41/50—Preparation of compounds having groups by reactions producing groups
- C07C41/54—Preparation of compounds having groups by reactions producing groups by addition of compounds to unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/20—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/10—Oxygen atoms
- C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Birds (AREA)
- Emergency Medicine (AREA)
- Dermatology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7523070A JPH09509946A (en) | 1994-03-04 | 1995-03-03 | Method for producing monoacetal of hydroquinone |
KR1019960704856A KR970701684A (en) | 1994-03-04 | 1995-03-03 | Process for manufacturing monoacetal of hydroquinone (PROCESS FOR MAKING MONOACETALS OF HYDROQUINONE) |
AU19395/95A AU1939595A (en) | 1994-03-04 | 1995-03-03 | Process for making monoacetals of hydroquinone |
EP95912054A EP0748306A1 (en) | 1994-03-04 | 1995-03-03 | Process for making monoacetals of hydroquinone |
CA002184252A CA2184252C (en) | 1994-03-04 | 1995-03-03 | Process for making monoacetals of hydroquinone |
MXPA/A/1996/003877A MXPA96003877A (en) | 1994-03-04 | 1995-03-03 | Procedure for developing monoacetals dehydroquin |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20657394A | 1994-03-04 | 1994-03-04 | |
US08/206,573 | 1994-03-04 | ||
US08/357,849 US5585525A (en) | 1994-12-16 | 1994-12-16 | Process for making monoacetals of hydroquinone |
US08/357,849 | 1994-12-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1995023779A2 WO1995023779A2 (en) | 1995-09-08 |
WO1995023779A3 true WO1995023779A3 (en) | 1995-09-28 |
Family
ID=26901478
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/002382 WO1995023778A2 (en) | 1994-03-04 | 1995-02-27 | Process for making monoacetals of hydroquinone |
PCT/US1995/002738 WO1995023779A2 (en) | 1994-03-04 | 1995-03-03 | Process for making monoacetals of hydroquinone |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/002382 WO1995023778A2 (en) | 1994-03-04 | 1995-02-27 | Process for making monoacetals of hydroquinone |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0748306A1 (en) |
JP (1) | JPH09509946A (en) |
KR (1) | KR970701684A (en) |
CN (1) | CN1145616A (en) |
AU (2) | AU1932295A (en) |
CA (1) | CA2184252C (en) |
CZ (1) | CZ257096A3 (en) |
WO (2) | WO1995023778A2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU715783B2 (en) * | 1994-03-04 | 2000-02-10 | Procter & Gamble Company, The | Process for making monoacetals of hydroquinone |
KR100453590B1 (en) * | 2001-10-17 | 2004-10-20 | 주식회사 바이오랜드 | Mono carbonylation of Benzene diols |
JP4632077B2 (en) * | 2002-10-15 | 2011-02-16 | Dic株式会社 | Epoxy resin composition, method for producing epoxy resin, novel epoxy resin, and novel phenol resin |
AU2006259056A1 (en) * | 2005-06-16 | 2006-12-21 | Girindus Ag | Synthesis of hydroquinone derivatives |
SE535691C2 (en) | 2011-03-08 | 2012-11-13 | Kat2Biz Ab | Reduction of C-O bonds via catalytic transfer hydrogenolysis |
JP5817614B2 (en) * | 2012-03-26 | 2015-11-18 | 日本ゼオン株式会社 | Method for producing 2,5-dihydroxybenzaldehyde compound |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1423073A (en) * | 1973-01-17 | 1976-01-28 | Ciba Geigy Ag | Amines and processes for their manufacture |
-
1995
- 1995-02-27 WO PCT/US1995/002382 patent/WO1995023778A2/en active Application Filing
- 1995-02-27 AU AU19322/95A patent/AU1932295A/en not_active Withdrawn
- 1995-03-03 WO PCT/US1995/002738 patent/WO1995023779A2/en not_active Application Discontinuation
- 1995-03-03 CZ CZ962570A patent/CZ257096A3/en unknown
- 1995-03-03 CN CN95192503A patent/CN1145616A/en active Pending
- 1995-03-03 CA CA002184252A patent/CA2184252C/en not_active Expired - Fee Related
- 1995-03-03 AU AU19395/95A patent/AU1939595A/en not_active Abandoned
- 1995-03-03 EP EP95912054A patent/EP0748306A1/en not_active Ceased
- 1995-03-03 KR KR1019960704856A patent/KR970701684A/en not_active Application Discontinuation
- 1995-03-03 JP JP7523070A patent/JPH09509946A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1423073A (en) * | 1973-01-17 | 1976-01-28 | Ciba Geigy Ag | Amines and processes for their manufacture |
Non-Patent Citations (4)
Title |
---|
H. G. KRISHNAMURTY ET AL: "Cleavage of aryl benzyl ethers by heterogeneous catalytic transfer hydrogenation", INDIAN JOURNAL OF CHEMISTRY, SECTION B, vol. 25B, 1986, NEW DELHI, pages 1253 - 1254 * |
S. HANESSIAN ET AL: "Facile cleavage of benzyl ethers by catalytic transfer hydrogenation", SYNTHESIS., no. 5, May 1981 (1981-05-01), STUTTGART DE, pages 396 - 397 * |
T. BIEG ET AL: "Cleavage of 2-phenyl-1,3-dioxolanes by catalytic transfer hydrogenation", SYNTHESIS., no. 4, April 1986 (1986-04-01), STUTTGART DE, pages 317 - 318 * |
T. BIEG ET AL: "Removal of O-benzyl protective groups by catalytic transfer hydrogenation", SYNTHESIS., no. 1, January 1985 (1985-01-01), STUTTGART DE, pages 76 - 77 * |
Also Published As
Publication number | Publication date |
---|---|
WO1995023778A2 (en) | 1995-09-08 |
EP0748306A1 (en) | 1996-12-18 |
CA2184252A1 (en) | 1995-09-08 |
JPH09509946A (en) | 1997-10-07 |
WO1995023779A2 (en) | 1995-09-08 |
AU1939595A (en) | 1995-09-18 |
AU1932295A (en) | 1995-09-18 |
WO1995023778A3 (en) | 1995-09-28 |
KR970701684A (en) | 1997-04-12 |
MX9603877A (en) | 1997-09-30 |
CA2184252C (en) | 1999-12-07 |
CN1145616A (en) | 1997-03-19 |
CZ257096A3 (en) | 1997-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
PH31259A (en) | Hydrogenation reaction catalyst precursor, processfor production thereof and process for production of alcohol. | |
KR19987002982A (en) | ||
AU8303882A (en) | Producing ethanol by continuous acid hydrolysis | |
MY112961A (en) | Dimethyl ether production and recovery from methanol | |
AU4352896A (en) | Process for the production of methanol | |
ZA968622B (en) | Process for the production of acetic acid by the carbonylation of dimethyl ether. | |
AU2175688A (en) | Process for the production of methanol and catalyst composition for said process | |
WO1995023779A3 (en) | Process for making monoacetals of hydroquinone | |
AU4957193A (en) | Process for the production of alcohols | |
AU582172B2 (en) | Process for producing alcohols from synthesis gas | |
AU1233288A (en) | Process for producing methanol or mixed alcohol | |
AU3508393A (en) | Process for the production of synthesis gas | |
AU8545798A (en) | Method for etherifying a benzyl alcohol, resulting products and applications | |
AU8124494A (en) | Conversion of bisnoralcohol to bisnoraldehyde | |
WO1989003815A1 (en) | Process for producing 4,4'-dibromodiphenyl ether | |
AU592462B2 (en) | Process for producing fluidized catalyst for synthesis of methanol | |
AU2002358592A1 (en) | Method for isomerizing allyl alcohols | |
AU1778788A (en) | Catalyst for oxidation of olefin or tertiary alcohol and process for production thereof | |
CA2181950A1 (en) | Enhanced Recovery of Alcohol from an Ether Containing Stream | |
CA2114139A1 (en) | Continuous process for the preparation of 2-ethyl-2- (hydroxymethyl) hexanal and 2-butyl-2-ethyl-1,3-propanediol | |
CA2177888A1 (en) | Continuous process for the manufacture of sodium c4-c8alkoxide | |
AU573467B2 (en) | Reaction products of mercapto-functional monohydric alcohols and vinyl silanes, and nco-functional compounds therefrom | |
CA2137031A1 (en) | Improved process for the manufacture of cyclopropylnitrile | |
EP0498630A3 (en) | Synthesis of para-tert-butoxycarbonyloxystyrene | |
HU9301728D0 (en) | Method for producing formyl-tetrahydro-pyranes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1996/003877 Country of ref document: MX Ref document number: 95192503.2 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AM AU BB BG BR BY CA CN CZ EE FI GE HU JP KG KP KR KZ LK LR LT LV MD MG MN MX NO NZ PL RO RU SG SI SK TJ TT UA UZ VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AM AU BB BG BR BY CA CN CZ EE FI GE HU JP KG KP KR KZ LK LR LT LV MD MG MN MX NO NZ PL RO RU SG SI SK TJ TT UA UZ VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1995912054 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2184252 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PV1996-2570 Country of ref document: CZ |
|
WWP | Wipo information: published in national office |
Ref document number: 1995912054 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: PV1996-2570 Country of ref document: CZ |
|
WWR | Wipo information: refused in national office |
Ref document number: 1995912054 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1995912054 Country of ref document: EP |
|
WWR | Wipo information: refused in national office |
Ref document number: PV1996-2570 Country of ref document: CZ |