PT88558A - Processo para a preparacao de espumas de poliuretano - Google Patents
Processo para a preparacao de espumas de poliuretanoInfo
- Publication number
- PT88558A PT88558A PT88558A PT8855888A PT88558A PT 88558 A PT88558 A PT 88558A PT 88558 A PT88558 A PT 88558A PT 8855888 A PT8855888 A PT 8855888A PT 88558 A PT88558 A PT 88558A
- Authority
- PT
- Portugal
- Prior art keywords
- cpd
- methylene
- phenyl isocyanate
- water
- obtd
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878722148A GB8722148D0 (en) | 1987-09-21 | 1987-09-21 | Polyurethane foam |
Publications (2)
Publication Number | Publication Date |
---|---|
PT88558A true PT88558A (pt) | 1989-07-31 |
PT88558B PT88558B (pt) | 1993-06-30 |
Family
ID=10624115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT88558A PT88558B (pt) | 1987-09-21 | 1988-09-20 | Processo para a preparacao de espumas de poliuretano |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR970010749B1 (pt) |
GB (1) | GB8722148D0 (pt) |
PT (1) | PT88558B (pt) |
ZA (1) | ZA886491B (pt) |
-
1987
- 1987-09-21 GB GB878722148A patent/GB8722148D0/en active Pending
-
1988
- 1988-08-31 ZA ZA886491A patent/ZA886491B/xx unknown
- 1988-09-20 PT PT88558A patent/PT88558B/pt not_active IP Right Cessation
- 1988-09-21 KR KR1019880012167A patent/KR970010749B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT88558B (pt) | 1993-06-30 |
GB8722148D0 (en) | 1987-10-28 |
KR890005169A (ko) | 1989-05-13 |
KR970010749B1 (ko) | 1997-06-30 |
ZA886491B (en) | 1989-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0540498A3 (en) | Manufacture of polyurethane foam | |
BR9809930B1 (pt) | processo para a preparaÇço de espumas rÍgidas de poliuretano de cÉlulas fechadas com baixa condutibilidade tÉrmica a partir de poliàis e poliisocianatos, bem como de agentes de esponjamento e, eventualmente, de auxiliares de esponjamento. | |
TW350853B (en) | A process for preparing polyurethane elastomer from a soft-segment isocyanate-terminated prepolymer | |
ATE107679T1 (de) | Polyurethanschaumherstellung. | |
KR930012922A (ko) | 폴리우레탄 발포체 | |
ES8602863A1 (es) | Procedimiento para la obtencion de articulos moldeados maci-zos o microcelulares | |
MY131677A (en) | Rigid polyurethane foams. | |
ATE156154T1 (de) | Flammwidrige polyurethanweichschaumstoffe | |
BR9909943B1 (pt) | espuma de poliuretano rÍgida e mÉtodo para formar uma espuma de poliuretano. | |
PT88558A (pt) | Processo para a preparacao de espumas de poliuretano | |
IT1229755B (it) | Composizioni poliisocianiche e loro impiego nella preparazione di schiume poliuretaniche flessibili. | |
EP0731120A3 (pt) | ||
PT88559A (pt) | Process for the manufacture of polyurethane foams | |
FR2288755A2 (fr) | Compositions de mousses cellulaires souples possedant une bonne tenue a la flamme | |
FR2360619A1 (fr) | Fabrication de polyurethanes a partir d'uree | |
PT87571A (pt) | Process for the preparation of polymeric rigid foams arised from poly-isocyanate of polymethylene polyphenylic compounds |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19921215 |
|
PC3A | Transfer or assignment |
Free format text: 20000630 HUNTSMAN ICI CHEMICALS LLC US |
|
MM4A | Annulment/lapse due to non-payment of fees, searched and examined patent |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20070615 |
|
MM4A | Annulment/lapse due to non-payment of fees, searched and examined patent |
Free format text: MAXIMUM VALIDITY LIMIT REACHED Effective date: 20080920 |