IT1198280B - High temp. resistant polyimide - Google Patents

High temp. resistant polyimide

Info

Publication number
IT1198280B
IT1198280B IT22907/86A IT2290786A IT1198280B IT 1198280 B IT1198280 B IT 1198280B IT 22907/86 A IT22907/86 A IT 22907/86A IT 2290786 A IT2290786 A IT 2290786A IT 1198280 B IT1198280 B IT 1198280B
Authority
IT
Italy
Prior art keywords
dissolving
aqueous
phosphorous
sulphur
bromine
Prior art date
Application number
IT22907/86A
Other languages
Italian (it)
Other versions
IT8622907A1 (en
IT8622907A0 (en
Inventor
Tamai Shoji
Kawasima Saburo
Sonobe Yoshiho
Ohta Masahiro
Oikawa Hideaki
Yamaguch Akihiro
Original Assignee
Mitsui Toatsu Chemicals
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 Mitsui Toatsu Chemicals filed Critical Mitsui Toatsu Chemicals
Priority to IT22907/86A priority Critical patent/IT1198280B/en
Publication of IT8622907A0 publication Critical patent/IT8622907A0/en
Publication of IT8622907A1 publication Critical patent/IT8622907A1/en
Application granted granted Critical
Publication of IT1198280B publication Critical patent/IT1198280B/en

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Abstract

A sample of the material is burned in an enclosed space at a pressure of (10-30)x 10power 5 Pa in a stream of oxygen. The products of combustion are then: (a) Analysed for sulphur, nitrogen, phosphorous and/or chlorine by dissolving in an aqueous, caustic, oxidising solution free of these elements, or (b) To determine bromine and possibly present chlorine, phosphorus and/or sulphur by dissolving in an aqueous, reducing solution, suitable for bromine - bromide reduction, or (c) To determine iodine and possibly present chlorine, phosphorous, sulphur and/or bromine by dissolving in an aqueous, reducing solution, suitable for iodine - iodide reduction or (d) To determine the metallic content and possibly present chlorine and/or phosphorous by dissolving in an aqueous solution of nitric acid. The resulting aqueous solution is used to determine the quantity of the polluting components by ion-chromatography
IT22907/86A 1986-12-31 1986-12-31 High temp. resistant polyimide IT1198280B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT22907/86A IT1198280B (en) 1986-12-31 1986-12-31 High temp. resistant polyimide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22907/86A IT1198280B (en) 1986-12-31 1986-12-31 High temp. resistant polyimide

Publications (3)

Publication Number Publication Date
IT8622907A0 IT8622907A0 (en) 1986-12-31
IT8622907A1 IT8622907A1 (en) 1988-07-01
IT1198280B true IT1198280B (en) 1988-12-21

Family

ID=11201763

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22907/86A IT1198280B (en) 1986-12-31 1986-12-31 High temp. resistant polyimide

Country Status (1)

Country Link
IT (1) IT1198280B (en)

Also Published As

Publication number Publication date
IT8622907A1 (en) 1988-07-01
IT8622907A0 (en) 1986-12-31

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931230