ES446059A3 - Procedure for obtaining reticulated polyurethanes. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for obtaining reticulated polyurethanes. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES446059A3 ES446059A3 ES446059A ES446059A ES446059A3 ES 446059 A3 ES446059 A3 ES 446059A3 ES 446059 A ES446059 A ES 446059A ES 446059 A ES446059 A ES 446059A ES 446059 A3 ES446059 A3 ES 446059A3
- Authority
- ES
- Spain
- Prior art keywords
- molecular weight
- translation
- machine
- legally binding
- google translate
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 229920002635 polyurethane Polymers 0.000 title abstract 2
- 239000004814 polyurethane Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 5
- 125000005442 diisocyanate group Chemical group 0.000 abstract 3
- 239000012948 isocyanate Substances 0.000 abstract 2
- 150000002513 isocyanates Chemical class 0.000 abstract 2
- 150000002429 hydrazines Chemical class 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 150000003141 primary amines Chemical class 0.000 abstract 1
- 150000003335 secondary amines Chemical class 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
Process for obtaining high molecular weight crosslinked polyurethanes, from compounds having at least two hydroxyl groups, with a molecular weight of 800 to 5000, diisocyanates and compounds bearing at least two reactive groups with respect to isocyanates, with a molecular weight between 18 and 500, characterized in that in a first stage they are poliadicionan in a compound containing at least two hydroxyl groups, with a molecular weight between 800 and 5000, in situ primary or secondary amines, hydrazines or acylhydrazines with diisocyanates, so that the compound bearing the hydroxyl groups contains between 1 and 25% by weight of polyaddition products and, in a second step, the hydroxyl-bearing compound thus treated is previously reacted with diisocyanates, if appropriate further compounds, having at least two hydroxyl groups, with a molecular weight between 800 and 5000, as well as compounds containing at least two g reactive groups with respect to isocyanates with a molecular weight between 18 and 500. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES446059A ES446059A3 (en) | 1976-03-15 | 1976-03-15 | Procedure for obtaining reticulated polyurethanes. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES446059A ES446059A3 (en) | 1976-03-15 | 1976-03-15 | Procedure for obtaining reticulated polyurethanes. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES446059A3 true ES446059A3 (en) | 1977-06-01 |
Family
ID=8471143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES446059A Expired ES446059A3 (en) | 1976-03-15 | 1976-03-15 | Procedure for obtaining reticulated polyurethanes. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES446059A3 (en) |
-
1976
- 1976-03-15 ES ES446059A patent/ES446059A3/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD2A | Announcement of lapse in spain |
Effective date: 20170627 |