FR2244738B1 - - Google Patents

Info

Publication number
FR2244738B1
FR2244738B1 FR7431873A FR7431873A FR2244738B1 FR 2244738 B1 FR2244738 B1 FR 2244738B1 FR 7431873 A FR7431873 A FR 7431873A FR 7431873 A FR7431873 A FR 7431873A FR 2244738 B1 FR2244738 B1 FR 2244738B1
Authority
FR
France
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
FR7431873A
Other versions
FR2244738A1 (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 AG
Original Assignee
Bayer AG
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
Priority claimed from DE19732347841 external-priority patent/DE2347841C3/de
Application filed by Bayer AG filed Critical Bayer AG
Publication of FR2244738A1 publication Critical patent/FR2244738A1/fr
Application granted granted Critical
Publication of FR2244738B1 publication Critical patent/FR2244738B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/12—Alkadienes
    • C07C11/173—Alkadienes with five carbon atoms
    • C07C11/18—Isoprene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7431873A 1973-09-22 1974-09-20 Expired FR2244738B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732347841 DE2347841C3 (de) 1973-09-22 Verfahren zur Herstellung von Isopren

Publications (2)

Publication Number Publication Date
FR2244738A1 FR2244738A1 (fr) 1975-04-18
FR2244738B1 true FR2244738B1 (fr) 1979-02-16

Family

ID=5893395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7431873A Expired FR2244738B1 (fr) 1973-09-22 1974-09-20

Country Status (17)

Country Link
US (1) US3972955A (fr)
JP (1) JPS5315483B2 (fr)
BE (1) BE820149A (fr)
BR (1) BR7407860D0 (fr)
CA (1) CA1031377A (fr)
CS (1) CS178178B2 (fr)
DD (1) DD113520A5 (fr)
DK (1) DK497174A (fr)
ES (1) ES430284A1 (fr)
FR (1) FR2244738B1 (fr)
GB (1) GB1433715A (fr)
IE (1) IE39855B1 (fr)
IT (1) IT1019340B (fr)
LU (1) LU70954A1 (fr)
NL (1) NL156383B (fr)
RO (1) RO71807A (fr)
ZA (1) ZA745973B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232182A (en) * 1977-11-21 1980-11-04 Liakumovich Alexandr G Process for purifying isoprene
FR2490642A1 (fr) * 1980-09-19 1982-03-26 Gankin Viktor Procede de preparation de 4,4-dimethyl-dioxane-1,3 et produits prepares par ledit procede
JPS5850322U (ja) * 1981-09-30 1983-04-05 日信工業株式会社 車両用デイスクブレ−キ装置のパツドスプリング
CN1768020B (zh) * 2003-03-31 2010-04-21 可乐丽股份有限公司 制造异戊二烯的方法
US20060045854A1 (en) 2004-08-27 2006-03-02 Lynette Zaidel Oral care composition with cross-linked polymer peroxide
EP2236484A4 (fr) * 2007-12-21 2012-01-18 Obshestvo O Ogranichennoi Otvetstvennoctiu Eurochim Spb Treiding Installation destinée à la synthèse d'isoprène en phase liquide à partir d'isobutylène et de formaldéhyde
CN100586942C (zh) * 2008-01-04 2010-02-03 万华实业集团有限公司 一种二噁烷的制备方法
CA2729302A1 (fr) 2008-06-30 2010-01-14 The Goodyear Tire & Rubber Company Polymeres d'isoprene provenant de sources renouvelables
TW201120213A (en) 2009-06-17 2011-06-16 Danisco Us Inc Polymerization of isoprene from renewable resources
EP2513021A2 (fr) 2009-12-18 2012-10-24 Danisco US Inc. Purification d'isoprène à partir de ressources renouvelables
CN103228599A (zh) 2010-09-24 2013-07-31 道达尔研究技术弗吕公司 由异丁醇制造异戊二烯
US20140255263A1 (en) * 2011-08-17 2014-09-11 Obshestvo S Ogranichennoi Otvetstvennostiu "Nauchno-Proizvodstvennoe Obedinenie Eurochim" Apparatus for the liquid-phase synthesis of isoprene from isobutylene and formaldehyde
EP3040325A1 (fr) 2014-12-31 2016-07-06 Shell Internationale Research Maatschappij B.V. Procédé de préparation d'éthylène, de propylène et d'isoprène
CN105130741B (zh) * 2015-10-13 2017-01-04 宁波金海晨光化学股份有限公司 一种反应精馏制备异戊二烯的方法
RU2768818C1 (ru) * 2021-03-16 2022-03-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Башкирский государственный университет" Применение пористого полиариленфталида для увеличения селективности при получении 4,4-диметил-1,3-диоксана

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB879728A (en) * 1958-09-29 1961-10-11 Inst Francais Du Petrole Process for the manufacture of isoprene from 4.4-dimethylmetadioxane
AU451791B2 (en) * 1970-09-09 1974-08-15 Bayer Aktiengesellschaft A process forthe preparation of isoprene from isobutene and formaldehyde

Also Published As

Publication number Publication date
CA1031377A (fr) 1978-05-16
BR7407860D0 (pt) 1975-07-29
NL7412420A (nl) 1975-03-25
LU70954A1 (fr) 1975-05-28
IE39855B1 (en) 1979-01-17
JPS5062905A (fr) 1975-05-29
CS178178B2 (fr) 1977-08-31
JPS5315483B2 (fr) 1978-05-25
BE820149A (fr) 1975-03-20
IT1019340B (it) 1977-11-10
DD113520A5 (fr) 1975-06-12
NL156383B (nl) 1978-04-17
DK497174A (fr) 1975-05-26
AU7350174A (en) 1976-03-25
ZA745973B (en) 1975-11-26
IE39855L (en) 1975-03-22
US3972955A (en) 1976-08-03
RO71807A (fr) 1982-02-26
GB1433715A (en) 1976-04-28
DE2347841A1 (de) 1975-04-10
DE2347841B2 (de) 1976-12-23
ES430284A1 (es) 1976-12-16
FR2244738A1 (fr) 1975-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse