ATE50770T1 - PROCESS FOR THE PREPARATION OF 4-SUBSTITUTED PHTHALIC ACID ANHYDRIDES. - Google Patents

PROCESS FOR THE PREPARATION OF 4-SUBSTITUTED PHTHALIC ACID ANHYDRIDES.

Info

Publication number
ATE50770T1
ATE50770T1 AT85104481T AT85104481T ATE50770T1 AT E50770 T1 ATE50770 T1 AT E50770T1 AT 85104481 T AT85104481 T AT 85104481T AT 85104481 T AT85104481 T AT 85104481T AT E50770 T1 ATE50770 T1 AT E50770T1
Authority
AT
Austria
Prior art keywords
preparation
phthalic acid
acid anhydrides
substituted phthalic
substituted
Prior art date
Application number
AT85104481T
Other languages
German (de)
Inventor
Jeffrey E Telschow
Original Assignee
Stauffer Chemical Co
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 US06/600,247 external-priority patent/US4560773A/en
Priority claimed from US06/600,248 external-priority patent/US4559405A/en
Application filed by Stauffer Chemical Co filed Critical Stauffer Chemical Co
Priority claimed from EP85104481A external-priority patent/EP0159637B1/en
Application granted granted Critical
Publication of ATE50770T1 publication Critical patent/ATE50770T1/en

Links

AT85104481T 1984-04-16 1985-04-12 PROCESS FOR THE PREPARATION OF 4-SUBSTITUTED PHTHALIC ACID ANHYDRIDES. ATE50770T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/600,247 US4560773A (en) 1984-04-16 1984-04-16 Process for preparing substituted phthalic anhydrides
US06/600,248 US4559405A (en) 1984-04-16 1984-04-16 Process for preparing substituted phthalic anhydrides
EP85104481A EP0159637B1 (en) 1984-04-16 1985-04-12 Process for preparing 4-substituted phthalic anhydrides

Publications (1)

Publication Number Publication Date
ATE50770T1 true ATE50770T1 (en) 1990-03-15

Family

ID=27227733

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85104481T ATE50770T1 (en) 1984-04-16 1985-04-12 PROCESS FOR THE PREPARATION OF 4-SUBSTITUTED PHTHALIC ACID ANHYDRIDES.

Country Status (1)

Country Link
AT (1) ATE50770T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee