HUP9902936A2 - Polyisocyanate-based polymer comprising metal salts and preparation of metal powders therefrom - Google Patents
Polyisocyanate-based polymer comprising metal salts and preparation of metal powders therefromInfo
- Publication number
- HUP9902936A2 HUP9902936A2 HU9902936A HUP9902936A HUP9902936A2 HU P9902936 A2 HUP9902936 A2 HU P9902936A2 HU 9902936 A HU9902936 A HU 9902936A HU P9902936 A HUP9902936 A HU P9902936A HU P9902936 A2 HUP9902936 A2 HU P9902936A2
- Authority
- HU
- Hungary
- Prior art keywords
- polyisocyanate
- metal
- amount
- polymer
- metal salt
- Prior art date
Links
- 239000002184 metal Substances 0.000 title abstract 10
- 229920001228 polyisocyanate Polymers 0.000 title abstract 6
- 239000005056 polyisocyanate Substances 0.000 title abstract 6
- 229920000642 polymer Polymers 0.000 title abstract 6
- 239000000843 powder Substances 0.000 title abstract 6
- 150000003839 salts Chemical class 0.000 title abstract 6
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 4
- 238000001354 calcination Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A polyisocyanate-based polymer having dispersed metal salt in it is obtained by reacting an organic polyisocyanate with an aqueous composition of a metal salt. The polymer comprises the metal salt in an amount of at least 10 wt% based on the total dry wt. Also claimed are: (1) a process for the preparation of the polymer as above comprising: (a) the amount of metal salt sufficient to provide the resultant polymer with a metal salt content of at least 10 wt% based on the dry wt of the polymer; and (b) the polyisocyanate being employed in an amount of at least 10 pts wt per 100 pts wt of the aqueous composition, with the proviso that when the composition comprises an additional isocyanate-reactive substance in an amount of more than 60 wt%, the amount of polyisocyanate employed does not exceed 70 pts wt; (2) a process for producing a metal-containing powder having an average particle size of less than 1 micrometer comprising calcining at 300-1500 deg C a polyisocyanate-based composition as above; (3) a metal-containing powder obtainable by the process as above having an average BET surface area of more than 200 m2/g; and (4) a composition containing the metal-containing powder obtained according to the process of (2) and comprising a bulk phase having dispersed in it 0.1-50 wt% of the powder based on the total wt of the bulk phase and the powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU9902936A HUP9902936A3 (en) | 1997-07-21 | 1997-07-21 | Polyisocyanate-based polymer comprising metal salts and preparation of metal powders therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU9902936A HUP9902936A3 (en) | 1997-07-21 | 1997-07-21 | Polyisocyanate-based polymer comprising metal salts and preparation of metal powders therefrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HUP9902936A2 true HUP9902936A2 (en) | 2000-02-28 |
| HUP9902936A3 HUP9902936A3 (en) | 2001-11-28 |
Family
ID=89999174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU9902936A HUP9902936A3 (en) | 1997-07-21 | 1997-07-21 | Polyisocyanate-based polymer comprising metal salts and preparation of metal powders therefrom |
Country Status (1)
| Country | Link |
|---|---|
| HU (1) | HUP9902936A3 (en) |
-
1997
- 1997-07-21 HU HU9902936A patent/HUP9902936A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HUP9902936A3 (en) | 2001-11-28 |
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