RO85310B1 - PROCEDEU DE MICROîNCAPSULARE - Google Patents
PROCEDEU DE MICROîNCAPSULAREInfo
- Publication number
- RO85310B1 RO85310B1 RO108217A RO10821782A RO85310B1 RO 85310 B1 RO85310 B1 RO 85310B1 RO 108217 A RO108217 A RO 108217A RO 10821782 A RO10821782 A RO 10821782A RO 85310 B1 RO85310 B1 RO 85310B1
- Authority
- RO
- Romania
- Prior art keywords
- water
- polymethylenepolyphenylisocyanate
- immiscible
- concentration
- polyfunctional amine
- Prior art date
Links
Landscapes
- Manufacturing Of Micro-Capsules (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Polyurethanes Or Polyureas (AREA)
- Colloid Chemistry (AREA)
Abstract
Inventia se refera la un procedeu de microîncapsulare a unor materiale nemiscibile cu apa, în pereti de poliuree, prin constituirea unei faze apoase,continînd un emulgator ales din grupa constituita din lignosulfonat de sodiu, de potasiu, de magneziu, de calciu sau amoniu în care se disperseaza o faza nemiscibila, constituita din polimetilenpolifenilizocianat, dizolvat într-un material nemiscibil cu apa si, în final, se adauga sub agitare o amina polifunctionala care reactioneaza cu polimetilenpolidifenilizocianatul, pentru a forma un perete protector, concentratia materialului nemiscibil cu apa fiind de 480...700 g/l, concentratia polimetilenpolifenilizocianatului fiind de 3,5...21,0% greutate raportat la materialul nimiscibil cu apa, concentratia aminei polifunctionale fiind de 1,5...9,0% în greutate, raportate la materialul nemiscibil cu apa, reactia de policondensare fiind condusa la o temperatura situata deasupra punctului de topire a materialului nemiscibil cu apa, dar sub 80 degree C...
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/286,092 US4417916A (en) | 1979-03-26 | 1981-07-22 | Encapsulation by interfacial polycondensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO85310A7 RO85310A7 (ro) | 1984-09-29 |
| RO85310B1 true RO85310B1 (ro) | 1984-10-30 |
Family
ID=23097036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO108217A RO85310B1 (ro) | 1981-07-22 | 1982-07-21 | PROCEDEU DE MICROîNCAPSULARE |
Country Status (11)
| Country | Link |
|---|---|
| JP (2) | JPS5825319A (ro) |
| AU (1) | AU548259B2 (ro) |
| CA (1) | CA1165636A (ro) |
| DD (1) | DD202393A5 (ro) |
| ES (1) | ES8400880A2 (ro) |
| GR (1) | GR77554B (ro) |
| PL (1) | PL237597A1 (ro) |
| RO (1) | RO85310B1 (ro) |
| YU (1) | YU160982A (ro) |
| ZA (1) | ZA825221B (ro) |
| ZW (1) | ZW15082A1 (ro) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214936B1 (de) * | 1985-09-13 | 1992-07-08 | Ciba-Geigy Ag | Verfahren zur Herstellung von Mikrokapseln |
| PT1100327E (pt) * | 1998-07-30 | 2003-06-30 | Syngenta Ltd | Microcapsulas de libertacao despoletada por acido |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2413123A1 (fr) * | 1977-12-30 | 1979-07-27 | Philagro Sa | Procede d'encapsulation par polycondensation interfaciale |
-
1982
- 1982-06-03 CA CA000404365A patent/CA1165636A/en not_active Expired
- 1982-07-20 ES ES514154A patent/ES8400880A2/es not_active Expired
- 1982-07-21 JP JP57125957A patent/JPS5825319A/ja active Granted
- 1982-07-21 ZW ZW15082A patent/ZW15082A1/xx unknown
- 1982-07-21 RO RO108217A patent/RO85310B1/ro unknown
- 1982-07-21 DD DD24183582A patent/DD202393A5/xx not_active IP Right Cessation
- 1982-07-21 PL PL23759782A patent/PL237597A1/xx unknown
- 1982-07-21 AU AU86248/82A patent/AU548259B2/en not_active Ceased
- 1982-07-21 ZA ZA825221A patent/ZA825221B/xx unknown
- 1982-07-21 GR GR68818A patent/GR77554B/el unknown
- 1982-07-22 YU YU160982A patent/YU160982A/xx unknown
-
1991
- 1991-03-18 JP JP3052582A patent/JPH04211415A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU548259B2 (en) | 1985-12-05 |
| AU8624882A (en) | 1983-05-12 |
| YU160982A (en) | 1985-04-30 |
| JPH04211415A (ja) | 1992-08-03 |
| ES514154A0 (es) | 1983-11-16 |
| PL237597A1 (en) | 1983-03-14 |
| ZW15082A1 (en) | 1982-10-13 |
| DD202393A5 (de) | 1983-09-14 |
| JPH0571608B2 (ro) | 1993-10-07 |
| JPS5825319A (ja) | 1983-02-15 |
| CA1165636A (en) | 1984-04-17 |
| ES8400880A2 (es) | 1983-11-16 |
| ZA825221B (en) | 1983-07-27 |
| RO85310A7 (ro) | 1984-09-29 |
| JPH0485B2 (ro) | 1992-01-06 |
| GR77554B (ro) | 1984-09-24 |
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