GB1205833A - New phosphorus-containing polypyromellimides - Google Patents
New phosphorus-containing polypyromellimidesInfo
- Publication number
- GB1205833A GB1205833A GB1918968A GB1918968A GB1205833A GB 1205833 A GB1205833 A GB 1205833A GB 1918968 A GB1918968 A GB 1918968A GB 1918968 A GB1918968 A GB 1918968A GB 1205833 A GB1205833 A GB 1205833A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polypyromellimides
- formula
- diamines
- april
- units
- Prior art date
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1057—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
1,205,833. Phosphorus-containing polypyromellimides. RHONE POULENC S.A. 23 April, 1968 [24 April, 1967; 18 Jan., 1968], No. 19189/68. Heading C3R. Novel polypyromellimides consisting of units of the formula alone, or with up to 80%, based on the total number of units of the formula wherein R is alkyl containing 1 to 4 carbon atoms, and A represents a single bond or -CH 2 -, C(CH 3 ) 2 , -O-, or -SO 2 -, may be prepared by dehydrating the corresponding polyamide acid prepared by the action of pyromellitic dianhydride on the appropriate diamine or mixture of diamines, or alternatively by heating the salt produced by the reaction of the appropriate diamine (or mixture of diamines) with a pyromellitic diacid diester of the formula wherein one R<SP>1</SP> and one R<SP>2</SP> are hydrogen and the other R<SP>1</SP> and the other R<SP>2</SP> are alkyl. Examples are given. Reference has been directed by the Comptroller to Specifications 982,914 and 1,063,796.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR103924A FR1529727A (en) | 1967-04-24 | 1967-04-24 | New phosphorus polypyromellimides |
| FR136554A FR93795E (en) | 1967-04-24 | 1968-01-18 | New phosphorus polypyromellimides. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1205833A true GB1205833A (en) | 1970-09-16 |
Family
ID=26175872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1918968A Expired GB1205833A (en) | 1967-04-24 | 1968-04-23 | New phosphorus-containing polypyromellimides |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE714069A (en) |
| CH (1) | CH482759A (en) |
| DE (1) | DE1770253A1 (en) |
| FR (1) | FR93795E (en) |
| GB (1) | GB1205833A (en) |
| NL (1) | NL6805337A (en) |
-
1968
- 1968-01-18 FR FR136554A patent/FR93795E/en not_active Expired
- 1968-04-16 NL NL6805337A patent/NL6805337A/xx unknown
- 1968-04-23 CH CH596668A patent/CH482759A/en not_active IP Right Cessation
- 1968-04-23 GB GB1918968A patent/GB1205833A/en not_active Expired
- 1968-04-23 BE BE714069D patent/BE714069A/xx unknown
- 1968-04-24 DE DE19681770253 patent/DE1770253A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH482759A (en) | 1969-12-15 |
| FR93795E (en) | 1969-05-16 |
| BE714069A (en) | 1968-10-23 |
| DE1770253A1 (en) | 1971-10-07 |
| NL6805337A (en) | 1968-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |