PT93964A - Process for the preparation of new fire propagation retardant compositions containing an oxyacid phosphate or sulphate - Google Patents
Process for the preparation of new fire propagation retardant compositions containing an oxyacid phosphate or sulphateInfo
- Publication number
- PT93964A PT93964A PT9396490A PT9396490A PT93964A PT 93964 A PT93964 A PT 93964A PT 9396490 A PT9396490 A PT 9396490A PT 9396490 A PT9396490 A PT 9396490A PT 93964 A PT93964 A PT 93964A
- Authority
- PT
- Portugal
- Prior art keywords
- oxyacid
- sulphate
- phosphate
- preparation
- composition
- Prior art date
Links
Landscapes
- Fireproofing Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A process is described for the preparation of a new composition which makes it possible to confer fire propagation retarding properties onto synthetic polymer materials, which comprises precipitating a solid composition of an aqueous mixture of an oxyacid phosphate or sulphate, an amine and a surfactant, dissolving the oxyacid in a minimum volume of boiling water, adding the amine and the surfactant to the boiling water and the oxyacid, heating and stirring the boiling mixture until the solid composition precipitates completely, separating the composition from the mixture by filtration and finally grinding the composition to obtain the fire propagation retardant additive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT9396490A PT93964B (en) | 1990-05-04 | 1990-05-04 | A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT9396490A PT93964B (en) | 1990-05-04 | 1990-05-04 | A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate |
Publications (2)
Publication Number | Publication Date |
---|---|
PT93964A true PT93964A (en) | 1991-11-29 |
PT93964B PT93964B (en) | 1996-12-31 |
Family
ID=20084725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT9396490A PT93964B (en) | 1990-05-04 | 1990-05-04 | A process for the preparation of new flame retardant compositions of the propaga- tion containing an oxidative phosphate or sulfate |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT93964B (en) |
-
1990
- 1990-05-04 PT PT9396490A patent/PT93964B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT93964B (en) | 1996-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB1A | Laying open of patent application |
Effective date: 19900521 |
|
FG3A | Patent granted, date of granting |
Effective date: 19960911 |
|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19980331 |