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Procedimiento para preparar un metilenbis (fenilisocianato) liquido y estable en el almacenamiento.
Abstract
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Procedimiento para preparar un metilenbis (fenilisocianato) líquido y estable en el almacenamiento, caracterizado porque comprende las etapas de: (A) calentar metilenbis(fenilisocinato) a una temperatura de 150 a 300ºC, en presencia de una parte por billón a 10 partes por millón de un óxido de fosfolina y (B) enfriar una mezcla de reacción a 100ºC o menos una vez que se alcanza el contenido deseado en isocianato.
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ES480249A1
Spain
Patent of invention
- Other languages
English -
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. - WOBAY CHEMICAL CORP
Worldwide applications
1978
US
1979
DE
EP
CA
AT
JP
ES
AU
Application number: US05/903,308
Filing date: 1978-05-05
Legal status: Expired - Lifetime
Application number: DE7979101243T
Filing date: 1979-04-25
Legal status: Expired
Application number: EP79101243A
Filing date: 1979-04-25
Legal status: Expired
Application number: CA326,746A
Filing date: 1979-05-01
Legal status: Expired
Application number: AT331479A
Filing date: 1979-05-03
Legal status: IP Right Cessation
Application number: JP5424779A
Filing date: 1979-05-04
Legal status: Granted
Application number: ES480249A
Filing date: 1979-05-04
Legal status: Expired
Application number: AU46680/79A
Filing date: 1979-05-04
Legal status: Ceased
Application ES480249A events
A timeline of key events for this patent application, including priority claims,
publications, legal status, reassignments, and litigation.
Google has not performed a legal analysis and makes no representation as to the accuracy or completeness of the events listed.
Google has not performed a legal analysis and makes no representation as to the accuracy or completeness of the events listed.
1979-05-04
1980-01-16
Status
Expired
Description
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Patent Citations (8)
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Family To Family Citations
* Cited by examiner, † Cited by third party
Cited By (26)
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Title
Family To Family Citations
* Cited by examiner, † Cited by third party, ‡ Family to family citation
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