FR2380309A1 - Diisocyanates stables et liquides a basse temperature et leur procede de preparation - Google Patents

Diisocyanates stables et liquides a basse temperature et leur procede de preparation

Info

Publication number
FR2380309A1
FR2380309A1 FR7803698A FR7803698A FR2380309A1 FR 2380309 A1 FR2380309 A1 FR 2380309A1 FR 7803698 A FR7803698 A FR 7803698A FR 7803698 A FR7803698 A FR 7803698A FR 2380309 A1 FR2380309 A1 FR 2380309A1
Authority
FR
France
Prior art keywords
low temperature
diisocyanates
liquid
preparation process
temperature stable
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
FR7803698A
Other languages
English (en)
Other versions
FR2380309B1 (fr
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.)
Bayer Corp
Original Assignee
Mobay Corp
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 Mobay Corp filed Critical Mobay Corp
Publication of FR2380309A1 publication Critical patent/FR2380309A1/fr
Application granted granted Critical
Publication of FR2380309B1 publication Critical patent/FR2380309B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00Derivatives of isocyanic acid
    • C07C265/14Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/18Separation; Purification; Stabilisation; Use of additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/80Masked polyisocyanates
    • C08G18/8003Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8009Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
    • C08G18/8012Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with diols
    • C08G18/8019Masked aromatic polyisocyanates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Pour préparer les diisocyanates de l'invention, on fait réagir des diisocyanatodiphénylméthanes ayant une teneur déterminée en isomère-2,4' avec du propylèneglycol ou un poly(propylène-1,2 étherglycol) ; les produits sont stables et liquides à -5 degrés C pendant au moins 48 heures et dans beaucoup de cas ils n'ont pas tendance à cristalliser, même lorsqu'on les stocke à -22 degrés C pendant plusieurs semaines. L'invention s'applique en particulier à des diisocyanates qui demeurent stables et liquides à basse température, peu toxiques et faciles à mettre en oeuvre.
FR7803698A 1977-02-09 1978-02-09 Diisocyanates stables et liquides a basse temperature et leur procede de preparation Granted FR2380309A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/766,997 US4118411A (en) 1977-02-09 1977-02-09 Low-temperature storage stable liquid diphenylmethane diisocyanates

Publications (2)

Publication Number Publication Date
FR2380309A1 true FR2380309A1 (fr) 1978-09-08
FR2380309B1 FR2380309B1 (fr) 1984-11-23

Family

ID=25078168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803698A Granted FR2380309A1 (fr) 1977-02-09 1978-02-09 Diisocyanates stables et liquides a basse temperature et leur procede de preparation

Country Status (8)

Country Link
US (1) US4118411A (fr)
JP (1) JPS5398942A (fr)
BE (1) BE863752A (fr)
CA (1) CA1091683A (fr)
DE (1) DE2804375A1 (fr)
FR (1) FR2380309A1 (fr)
GB (1) GB1572781A (fr)
IT (1) IT1104604B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022497A1 (fr) * 1979-07-12 1981-01-21 Bayer Ag Procédé de préparation de polyuréthane-urées élastiques, éventuellement cellulaires
EP0093357A1 (fr) * 1982-05-03 1983-11-09 BASF Aktiengesellschaft Procédé de collage de matières brutes contenant de la lignocellulose au moyen d'un prépolymère à base d'un mélange de diisocyanate de diphénylméthane modifié par de l'uréthane
FR2545083A1 (fr) * 1983-04-29 1984-11-02 Ugine Kuhlmann Composition liquide, contenant des diisocyanates a structure diphenylmethane, et son procede de fabrication
EP0393545A2 (fr) * 1989-04-17 1990-10-24 BASF Aktiengesellschaft Masses à couler de polyuréthane compacts, clairs et stérilisables à la vapeur chaude, procédé pour leur préparation et leur utilisation, en particulier pour des articles techniques médicinaux
EP0413265A2 (fr) * 1989-08-18 1991-02-20 BASF Aktiengesellschaft Masses compactes coulées, transparentes de polyuréthane stérilisables par vapeur chaude, procédé pour leur préparation et leur utilisation, en particulier pour des articles techniques medicaux
EP0641812A1 (fr) * 1993-09-02 1995-03-08 Bayer Corporation Diisocyanates de diphénylméthane liquides, procédé de leur préparation et utilisation
EP2036934A3 (fr) * 2007-09-14 2009-05-20 Bayer MaterialScience AG Mélanges de polyisocyanate

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1596469A (en) * 1978-04-11 1981-08-26 Ici Ltd Liquid isocyanate compositions based on diphenylmethane diisocyanate
DE3003543A1 (de) * 1980-01-31 1981-08-06 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von modifizierten polyisocynaten und ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen
DE3042821A1 (de) * 1980-11-13 1982-06-09 Bayer Ag, 5090 Leverkusen Verfahren zum abdichten von bauwerken
US4321333A (en) * 1981-04-16 1982-03-23 The Upjohn Company Polyurethane prepared from polyisocyanate blend
CA1178603A (fr) * 1981-05-22 1984-11-27 William E. Slack Diphenylmethane diisocyanate de 2,2,4,4-tetraalkyl- 1,3-cyclobutanediol modifie
US4383070A (en) * 1982-05-27 1983-05-10 Mobay Chemical Corporation Storage stable polyurethane compositions
US4800040A (en) * 1983-06-27 1989-01-24 Fritz Hostettler Low temperature, storage stable mixtures of prepolymers and flow modifiers
US4490300A (en) * 1983-09-30 1984-12-25 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
US4490301A (en) * 1983-09-30 1984-12-25 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
US4490302A (en) * 1983-11-25 1984-12-25 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
DE3401166A1 (de) * 1984-01-14 1985-07-18 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von urethanmodifizierten polyisocyanat-zubereitungen und ihre verwendung bei der herstellung von polyurethankunststoffen
DE3405939A1 (de) * 1984-02-18 1985-08-22 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von urethanmodifizierten polyisocyanat-zubereitungen und ihre verwendung bei der herstellung von polyurethankunststoffen oder von polyisocyanuratkunststoffen
US4539156A (en) * 1984-12-14 1985-09-03 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
US4539158A (en) * 1984-12-14 1985-09-03 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
US4539157A (en) * 1984-12-14 1985-09-03 Mobay Chemical Corporation Liquid diphenylmethane diisocyanate compositions
DE3526233A1 (de) * 1985-07-23 1987-01-29 Bayer Ag Verfahren zur herstellung von harnstoff- und/oder biuretgruppen aufweisenden polyisocyanat-zubereitungen, die nach diesem verfahren erhaeltlichen polyisocyanat-zubereitungen und ihre verwendung als isocyanatkomponente bei der herstellung von kunststoffen nach dem isocyanat-polyadditionsverfahren
DE3527531A1 (de) * 1985-08-01 1987-02-12 Bayer Ag Verfahren zur herstellung von urethanmodifizierten polyisocyanat-zubereitungen, die nach diesem verfahren erhaltenen polyisocyanatzubereitungen und ihre verwendung bei der herstellung von kunststoffen auf polyisocyanat-basis
US4797226A (en) * 1985-09-24 1989-01-10 Fritz Hostettler Low temperature, compatible mixtures of polyether prepolymers and flow modifiers
US4910333A (en) * 1987-06-03 1990-03-20 Mobay Corporation Liquid diphenylmethane diisocyanate compositions
US4767796A (en) * 1987-12-17 1988-08-30 The Dow Chemical Company Hard segment containing prepolymers from cycloalkane diols
US4883909A (en) * 1988-05-11 1989-11-28 Mobay Corporation Liquid diphenylmetane diisocyanate compositions
US5013811A (en) * 1989-03-20 1991-05-07 Reeves Brothers, Inc. Use of modified diisocyanates for preparing linear thermoplastic polyurethane elastomers having improved properties
US5001208A (en) * 1989-03-20 1991-03-19 Reeves Brothers, Inc. Linear polyurethane elastomer compositions based on mixed polycarbonate and polyether polyols
US5130384A (en) * 1989-03-20 1992-07-14 Reeves Brothers, Inc. Calenderable thermoplastic polyurethane elastomer compositions containing millable linear polyurethanes
US5298303A (en) * 1989-03-20 1994-03-29 Reeves Brothers, Inc. Fabric structure for severe use applications
US5096992A (en) * 1989-03-20 1992-03-17 Reeves Brothers, Inc. Use of modified diisocyanates for preparing linear thermoplastic polyurethane elastomers having improved properties
US5109034A (en) * 1989-12-21 1992-04-28 Miles Inc. Storage stable solid isocyanate compositions, preparation, and method of use thereof
US5043472A (en) * 1989-12-21 1991-08-27 Mobay Corporation Storage stable solid isocyanate compositions, preparation, and method of use thereof
DE4006976A1 (de) * 1990-03-06 1991-09-12 Basf Ag Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenyl-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl
US5110666A (en) * 1991-05-06 1992-05-05 Reeves Brothers, Inc. Coated fabric structure for air bag applications
US5288899A (en) * 1993-06-30 1994-02-22 Miles Inc. Liquification of diphenylmethane diisocyanate by partially reacting the isocyanate groups with blocking agents
US5440003A (en) * 1993-09-02 1995-08-08 Miles Inc. Liquid methylene diphenyl diisocyanate
US5319053A (en) * 1993-09-02 1994-06-07 Miles Inc. Liquid diphenylmethane diisocyanate
US5319054A (en) * 1993-09-02 1994-06-07 Miles Inc. Liquid methylene diphenyl diisocyanate
US5350778A (en) * 1993-10-28 1994-09-27 Miles Inc. Polyisocyanate based upon 4,4'- and 2,4'-diphenylmethane diisocyanates and use thereof in a rim process
CA2117740A1 (fr) * 1993-10-28 1995-04-29 Michael F. Hurley Polyisocyanate a base de diisocyanates de 4,4'- et de 2,4'-diphenylmethane et leur utilisation dans une methode rim
CA2117741A1 (fr) * 1993-10-28 1995-04-29 Michael F. Hurley Methode rim dans laquelle on utilise des isocyanates a base de diisocyanate de 2,4'- et de 4,4'-4,4'- diphenylmethane
US5567793A (en) * 1995-06-06 1996-10-22 Bayer Corporation Urethane-free, diphenylmethane diisocyanate prepolymers and process for their production
US5686042A (en) * 1995-06-07 1997-11-11 Bayer Corporation Rim process using liquid methylene diphenyl diisocyanate
US5679756A (en) * 1995-12-22 1997-10-21 Optima Inc. Optical thermoplastic thiourethane-urethane copolymers
US5663272A (en) * 1995-12-22 1997-09-02 Bayer Corporation Allophanate-modified diphenylmethane diisocyanates and processes for their production and use
US5889068A (en) * 1997-07-24 1999-03-30 Bayer Corporation Water blown polyurethane soling systems
US6197878B1 (en) 1997-08-28 2001-03-06 Eastman Chemical Company Diol latex compositions and modified condensation polymers
WO2000052083A1 (fr) 1999-03-03 2000-09-08 Eastman Chemical Company Compositions de diol polymere silicone et melanges de polycondensat/silicone polymere
EP1161497B1 (fr) 1999-03-03 2003-05-07 Eastman Chemical Company Melanges de polymeres de polyamide/emulsion
WO2000078845A1 (fr) 1999-06-18 2000-12-28 Eastman Chemical Company Melanges nylon 6/silicone
CN1357021A (zh) 1999-06-18 2002-07-03 伊斯曼化学公司 酰胺型聚合物/硅氧烷聚合物共混物及其制造工艺
US6462109B1 (en) 1999-10-12 2002-10-08 Eastman Chemical Company Surfactantless latex compositions and methods of making polymer blends using these compositions
US6248856B1 (en) 1999-12-10 2001-06-19 Bayer Corporation One-shot polyurethane elastomers with very low compression sets
US6277943B1 (en) 1999-12-10 2001-08-21 Bayer Corporation One-shot polyurethane elastomers with very low compression set
US6482913B1 (en) 2000-02-07 2002-11-19 Bayer Aktiengesellschaft Liquid MDI adducts wtih improved freeze stability
US6242556B1 (en) * 2000-02-07 2001-06-05 Bayer Corporation Liquid MDI adducts with improved freeze stability
US6376567B1 (en) 2000-12-07 2002-04-23 Bayer Corporation Polyisocyanate compositions and a process for the production of low-density flexible foams with low humid aged compression sets from these polyisocyanate compositions
US6844390B2 (en) * 2001-04-09 2005-01-18 Eastman Chemical Company Modified alkyd compositions comprising polyol latex compositions and processes of making them
US6699931B2 (en) 2001-04-09 2004-03-02 Eastman Chemical Company Modified alkyd compositions comprising diol latex compositions and processes of making the same
AR063769A1 (es) 2006-11-01 2009-02-18 Dow Global Technologies Inc Articulos que incluyen poliolefina y poliuretano no-polares y los metodos para su preparacion y uso
US8110704B2 (en) * 2006-11-02 2012-02-07 Bayer Materialscience Llc Process for the production of stable polymers
AR064670A1 (es) 2006-12-21 2009-04-15 Dow Global Technologies Inc Polimeros de olefina funcionalizados, composiciones y articulos preparados a partir de ellas y metodos para prepararlos
US20090156777A1 (en) 2007-12-17 2009-06-18 Nodelman Neil H Freeze-stable aromatic diisocyanates and processes for the preparation of these freeze-stable products
EP2454316B1 (fr) 2009-06-18 2013-04-03 Dow Global Technologies LLC Compositions de polyuréthane thermoplastiques ignifugeantes sans halogène et de couleur stable
TWI457393B (zh) * 2009-11-12 2014-10-21 Kraton Polymers Us Llc 熱塑性聚胺基甲酸酯嵌段共聚物組合物
DE102011089783A1 (de) * 2011-12-23 2013-06-27 Bayer Materialscience Aktiengesellschaft Niedrigviskose reaktive Polyurethan-Zusammensetzungen
EP4132986A1 (fr) 2020-04-07 2023-02-15 Covestro Deutschland AG Prépolymères nco stables à froid, leur procédé de préparation et leur utilisation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394164A (en) * 1965-10-24 1968-07-23 Upjohn Co Stabilized methylenebis-(phenyl isocyanate) compositions
FR1558049A (fr) * 1967-03-08 1969-02-21

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362979A (en) * 1964-01-02 1968-01-09 Jefferson Chem Co Inc Mixtures of methylene-bridged polyphenyl polyisocyanates
US3394165A (en) * 1965-10-24 1968-07-23 Upjohn Co Stabilized methylenebis-(phenyl isocyanate) compositions
NL178871C (nl) * 1972-09-26 Ici Ltd Werkwijze voor het bereiden van een vloeibaar difenylmethaandiisocyanaatproduct en voor het bereiden of vervaardigen van een polyurethaan onder toepassing van een dergelijk isocyanaatproduct.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394164A (en) * 1965-10-24 1968-07-23 Upjohn Co Stabilized methylenebis-(phenyl isocyanate) compositions
FR1558049A (fr) * 1967-03-08 1969-02-21
US3644457A (en) * 1967-03-08 1972-02-22 Bayer Ag Preparation of stable liquid diphenylmethane diisocyanates

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022497A1 (fr) * 1979-07-12 1981-01-21 Bayer Ag Procédé de préparation de polyuréthane-urées élastiques, éventuellement cellulaires
EP0093357A1 (fr) * 1982-05-03 1983-11-09 BASF Aktiengesellschaft Procédé de collage de matières brutes contenant de la lignocellulose au moyen d'un prépolymère à base d'un mélange de diisocyanate de diphénylméthane modifié par de l'uréthane
FR2545083A1 (fr) * 1983-04-29 1984-11-02 Ugine Kuhlmann Composition liquide, contenant des diisocyanates a structure diphenylmethane, et son procede de fabrication
EP0125169A1 (fr) * 1983-04-29 1984-11-14 Elf Atochem S.A. Composition liquide, contenant des diisocyanates à structure diphénylméthane, et son procédé de fabrication
EP0393545A2 (fr) * 1989-04-17 1990-10-24 BASF Aktiengesellschaft Masses à couler de polyuréthane compacts, clairs et stérilisables à la vapeur chaude, procédé pour leur préparation et leur utilisation, en particulier pour des articles techniques médicinaux
EP0393545A3 (fr) * 1989-04-17 1991-02-20 BASF Aktiengesellschaft Masses à couler de polyuréthane compacts, clairs et stérilisables à la vapeur chaude, procédé pour leur préparation et leur utilisation, en particulier pour des articles techniques médicinaux
EP0413265A2 (fr) * 1989-08-18 1991-02-20 BASF Aktiengesellschaft Masses compactes coulées, transparentes de polyuréthane stérilisables par vapeur chaude, procédé pour leur préparation et leur utilisation, en particulier pour des articles techniques medicaux
EP0413265A3 (en) * 1989-08-18 1991-04-17 Basf Aktiengesellschaft Transparent, steam-sterilisable, compact polyurethane casting materials, process for their preparation and their use, in particular for medical technical articles
EP0641812A1 (fr) * 1993-09-02 1995-03-08 Bayer Corporation Diisocyanates de diphénylméthane liquides, procédé de leur préparation et utilisation
EP2036934A3 (fr) * 2007-09-14 2009-05-20 Bayer MaterialScience AG Mélanges de polyisocyanate
US8367794B2 (en) 2007-09-14 2013-02-05 Bayer Materialscience Ag Polyisocyanate mixtures

Also Published As

Publication number Publication date
IT7847947A0 (it) 1978-02-07
DE2804375A1 (de) 1978-08-10
GB1572781A (en) 1980-08-06
JPS5398942A (en) 1978-08-29
FR2380309B1 (fr) 1984-11-23
CA1091683A (fr) 1980-12-16
BE863752A (fr) 1978-08-08
US4118411A (en) 1978-10-03
IT1104604B (it) 1985-10-21

Similar Documents

Publication Publication Date Title
FR2380309A1 (fr) Diisocyanates stables et liquides a basse temperature et leur procede de preparation
FR2383977A1 (fr) Diisocyanates de diphenylmethane liquides, stables lors d'un stockage a basse temperature
HUP9900657A2 (hu) Hypericum perforatum L. stabil kivonatai, ezeket tartalmazó gyógyszerkészítmények, és eljárás az extraktum előállítására
Véra et al. Genetic variability in the compatibility between Schistosoma haematobium and its potential vectors in Niger. Epidemiological implications
Matson et al. Distribution of hereditary blood groups among Indians in South America. VII. In Argentina
Biggs Pre-Sargonic Riddles from Lagash
Hoffman et al. Fish age as related to susceptibility to Myxosoma cerebralis, cause of whirling disease
Martin The salivary gland chromosomes of Chironomus oppositus Walker (Diptera: Nematocera)
FR2358837A1 (fr) Aliment melange contenant un antibiotique et des enzymes, pour animaux d'elevage
MA19326A1 (fr) Nouveaux composes pour le detachement des fruits et/ou des feuilles des plantes .
Goldwater et al. Absorption and excretion of mercury in man: IX. Persistence of mercury in blood and urine following cessation of exposure
Novik Lexicon of Albanian mythology: areal studies in the polylingual region of Azov Sea
NO930271D0 (no) Antineoplastisk kjemoterapeutika av planteopprinnelse medhoey selektivitet og svaert redusert toksisitet, og fremgangsmaate for fremstilling derav
FR2413402A1 (fr) Nouveaux derives de 11-alcanoyl-4''-deoxy-4''-isonitrilo-oleandomycine
Lloyd Coca—“The divine plant of the incas”
OA07058A (fr) Nouveaux sulfures de carbomoyle, leur préparation et compositions pour l'agriculture les contenant.
Blacklock et al. Observations on the classification of certain schistosome cercariae
FR1286227A (fr) Dispositif pour séparer des matières étrangères comme le sable, les pierres, les herbes et autres matières analogues d'un courant de flottage comportant des produits agricoles de récolte, notamment des betteraves à sucre
Handayany Islamic Perspective On The Use of Pathogen Bacteria As An Antibacterial Ethanol Extract Test Activity of White Pumpkin Leaves (Lagenaria siceraria)
Uchida Some medusae from New Caledonia
Hill Materials for historical geography and economic history of Southeast Asia in nineteenth century Malayan newspapers
FR2364873A1 (fr) Composition de tourbe pour la culture et son application
HBW Recent Work on Anopheles
Gillett The genus Craibia
Yamada et al. Polyp and medusa of the hydroid Sphaerocoryne multitentaculata (Warren) from Japan

Legal Events

Date Code Title Description
ST Notification of lapse