TW375625B - Polycarbodiimide and process therefor - Google Patents
Polycarbodiimide and process thereforInfo
- Publication number
- TW375625B TW375625B TW086119127A TW86119127A TW375625B TW 375625 B TW375625 B TW 375625B TW 086119127 A TW086119127 A TW 086119127A TW 86119127 A TW86119127 A TW 86119127A TW 375625 B TW375625 B TW 375625B
- Authority
- TW
- Taiwan
- Prior art keywords
- polycarbodiimide
- hydrophilic
- group
- process therefor
- hardenability
- Prior art date
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
This invention provides a kind of polycarbodiimide and its process. The process is started by hydrophilic grafting reaction, so that one end of diisocyanate is linked to hydrophile group. With phosphorus as catalyst and under high temperature, isocyanate having hydrophilic group undergoes elimination reaction to obtain polycarbodiimide. Subsequently, hydrophilic group is employed to block the end. The resulting polycarbodiimide has hydrophilic groups at both ends, and different from aqueous polycarbodiimide, possesses superior hydrophilic characteristic, while retaining the hardenability and stability of conventional polycarbodiimide.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW086119127A TW375625B (en) | 1997-12-17 | 1997-12-17 | Polycarbodiimide and process therefor |
US09/098,145 US5866715A (en) | 1997-12-17 | 1998-06-16 | Polycarbodiimides and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW086119127A TW375625B (en) | 1997-12-17 | 1997-12-17 | Polycarbodiimide and process therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
TW375625B true TW375625B (en) | 1999-12-01 |
Family
ID=57941901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086119127A TW375625B (en) | 1997-12-17 | 1997-12-17 | Polycarbodiimide and process therefor |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW375625B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11591435B2 (en) | 2017-04-21 | 2023-02-28 | Nisshinbo Chemical Inc. | Polycarbodiimide compound, production method therefor, and resin composition |
-
1997
- 1997-12-17 TW TW086119127A patent/TW375625B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11591435B2 (en) | 2017-04-21 | 2023-02-28 | Nisshinbo Chemical Inc. | Polycarbodiimide compound, production method therefor, and resin composition |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |