BE732687A - - Google Patents

Info

Publication number
BE732687A
BE732687A BE732687DA BE732687A BE 732687 A BE732687 A BE 732687A BE 732687D A BE732687D A BE 732687DA BE 732687 A BE732687 A BE 732687A
Authority
BE
Belgium
Application number
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=27175654&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BE732687(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CH696468A external-priority patent/CH493473A/de
Priority claimed from CH905968A external-priority patent/CH493475A/de
Priority claimed from CH938368A external-priority patent/CH493474A/de
Application filed filed Critical
Publication of BE732687A publication Critical patent/BE732687A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE732687D 1968-05-09 1969-05-07 BE732687A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH696468A CH493473A (de) 1968-05-09 1968-05-09 Verfahren zur Herstellung von Malonsäuredinitril
CH905968A CH493475A (de) 1968-06-18 1968-06-18 Verfahren zur Reinigung von Malonsäuredinitril
CH938368A CH493474A (de) 1968-06-24 1968-06-24 Verfahren zur Reinigung von Malonsäuredinitril

Publications (1)

Publication Number Publication Date
BE732687A true BE732687A (zh) 1969-10-16

Family

ID=27175654

Family Applications (1)

Application Number Title Priority Date Filing Date
BE732687D BE732687A (zh) 1968-05-09 1969-05-07

Country Status (12)

Country Link
US (2) US3655721A (zh)
JP (1) JPS50646B1 (zh)
BE (1) BE732687A (zh)
CS (1) CS157061B2 (zh)
ES (1) ES366851A1 (zh)
FR (1) FR2008128A1 (zh)
GB (1) GB1222343A (zh)
NL (1) NL164553C (zh)
NO (1) NO130584C (zh)
RO (1) RO56619A (zh)
SE (2) SE385474B (zh)
YU (1) YU32949B (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136108A (en) * 1968-04-05 1979-01-23 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Process for the production of malononitrile
US3975422A (en) * 1972-11-21 1976-08-17 Johnson & Johnson Preparation of bis (2-cyanoacrylate)monomers
DE2260126C2 (de) * 1972-12-08 1983-12-01 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von reinem, stabilem Malonsäuredinitril
CH582655A5 (zh) * 1973-10-18 1976-12-15 Lonza Ag
US5153351A (en) * 1992-01-06 1992-10-06 E. I. Du Pont De Nemours And Company Removal of tetrahydroazepine (tha) from 6-aminocapronitrile by reaction with reactive methylene compounds
US5312959A (en) * 1993-07-12 1994-05-17 E. I. Du Pont De Nemours And Company Purification of 2-methylglutaronitrile or adiponitrile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799697A (en) * 1954-09-15 1957-07-16 Chase Chemical Company Process for the manufacture and purification of malononitrile
US2809986A (en) * 1955-11-17 1957-10-15 Kay Fries Chemicals Inc Method for the purification of malononitrile
US3206500A (en) * 1962-11-30 1965-09-14 Exxon Research Engineering Co Separation of acrylonitrile
US3322814A (en) * 1964-09-10 1967-05-30 Universal Oil Prod Co Purification of nitriles
US3417126A (en) * 1966-01-14 1968-12-17 Nissan Chemical Ind Ltd Method of producing malononitrile
US3541133A (en) * 1969-04-03 1970-11-17 Little Inc A Method for synthesizing malononitrile
US3616269A (en) * 1969-07-10 1971-10-26 Ashland Oil Inc Method for the purification of malononitrile by the addition of cyclopentadiene followed by distillation

Also Published As

Publication number Publication date
US3742020A (en) 1973-06-26
GB1222343A (en) 1971-02-10
DE1921662A1 (de) 1969-11-13
US3655721A (en) 1972-04-11
SE385473B (sv) 1976-07-05
SE385474B (sv) 1976-07-05
NO130584B (zh) 1974-09-30
YU32949B (en) 1975-12-31
RO56619A (zh) 1974-04-29
JPS50646B1 (zh) 1975-01-10
NL164553C (nl) 1981-01-15
NO130584C (zh) 1975-01-08
NL6907129A (zh) 1969-11-11
NL164553B (nl) 1980-08-15
CS157061B2 (zh) 1974-08-23
FR2008128A1 (zh) 1970-01-16
YU112769A (en) 1975-06-30
ES366851A1 (es) 1971-06-16
DE1921662B2 (de) 1976-02-19

Similar Documents

Publication Publication Date Title
AU1946070A (zh)
AU428130B2 (zh)
AU2374870A (zh)
AU5184069A (zh)
AU6168869A (zh)
JPS50646B1 (zh)
AU6171569A (zh)
AU429879B2 (zh)
AU416157B2 (zh)
AU2581067A (zh)
AU4811568A (zh)
AU421558B1 (zh)
AU2580267A (zh)
AR203075Q (zh)
AU4744468A (zh)
AU3224368A (zh)
AU3789668A (zh)
AU463027A (zh)
BE708933A (zh)
AU479894A (zh)
BE728093A (zh)
AU4558658A (zh)
AU4503667A (zh)
AU5758767A (zh)
AU2496167A (zh)

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: LONZA S.A.

Effective date: 19880531