FI882485A0 - FASTA SKUM. - Google Patents
FASTA SKUM.Info
- Publication number
- FI882485A0 FI882485A0 FI882485A FI882485A FI882485A0 FI 882485 A0 FI882485 A0 FI 882485A0 FI 882485 A FI882485 A FI 882485A FI 882485 A FI882485 A FI 882485A FI 882485 A0 FI882485 A0 FI 882485A0
- Authority
- FI
- Finland
- Prior art keywords
- contg
- pref
- polyisocyanate
- compsn
- less
- 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
- 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
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
A method is claimed for prepn. of rigid foams comprising reacting under foam forming conditions: a) a polymethylene polyphenyl polyisocyanate compsn. (I) contg. not more than 20 (pref. less than 15)wt. % diisocyanates and not more than 20 (pref. less than 10)wt. % polyisocyanates contg. more than 5 NCO gps. per mol.; with b) a polyfunctional active H cpd. Pref. the reaction is carried out wtih greater than a stoichiometric amount of (I) in the presence of a trimerisation catalyst. Also claimed is a polyisocyanate compsn. contg. 0-20 wt. % diisocyanate, 40-80 wt. % triisocyanate, 5-25 wt. % tetra/pentaisocyanate and not more than 20 wt. % polyisocyanate, and wherein the NCO value is 32-33.3 wt. %.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878712364A GB8712364D0 (en) | 1987-05-26 | 1987-05-26 | Rigid foams |
Publications (2)
Publication Number | Publication Date |
---|---|
FI882485A0 true FI882485A0 (en) | 1988-05-26 |
FI882485A FI882485A (en) | 1988-11-27 |
Family
ID=10617928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI882485A FI882485A (en) | 1987-05-26 | 1988-05-26 | FASTA SKUM. |
Country Status (10)
Country | Link |
---|---|
KR (1) | KR970002520B1 (en) |
AT (1) | ATE94182T1 (en) |
CA (1) | CA1322816C (en) |
DK (1) | DK289088A (en) |
FI (1) | FI882485A (en) |
GB (1) | GB8712364D0 (en) |
HK (1) | HK1001692A1 (en) |
NO (1) | NO882283L (en) |
NZ (1) | NZ224659A (en) |
PT (1) | PT87571B (en) |
-
1987
- 1987-05-26 GB GB878712364A patent/GB8712364D0/en active Pending
-
1988
- 1988-05-17 NZ NZ224659A patent/NZ224659A/en unknown
- 1988-05-25 NO NO882283A patent/NO882283L/en unknown
- 1988-05-25 PT PT87571A patent/PT87571B/en not_active IP Right Cessation
- 1988-05-26 FI FI882485A patent/FI882485A/en not_active IP Right Cessation
- 1988-05-26 CA CA000567719A patent/CA1322816C/en not_active Expired - Fee Related
- 1988-05-26 KR KR1019880006167A patent/KR970002520B1/en not_active IP Right Cessation
- 1988-05-26 DK DK289088A patent/DK289088A/en unknown
- 1988-05-26 AT AT88304805T patent/ATE94182T1/en active
-
1998
- 1998-01-22 HK HK98100576A patent/HK1001692A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT87571B (en) | 1992-12-31 |
NO882283D0 (en) | 1988-05-25 |
GB8712364D0 (en) | 1987-07-01 |
KR970002520B1 (en) | 1997-03-05 |
DK289088A (en) | 1988-11-27 |
DK289088D0 (en) | 1988-05-26 |
HK1001692A1 (en) | 1998-07-03 |
PT87571A (en) | 1989-05-31 |
KR880014023A (en) | 1988-12-22 |
FI882485A (en) | 1988-11-27 |
CA1322816C (en) | 1993-10-05 |
ATE94182T1 (en) | 1993-09-15 |
NO882283L (en) | 1988-11-28 |
NZ224659A (en) | 1990-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed | ||
MM | Patent lapsed |
Owner name: IMPERIAL CHEMICAL INDUSTRIES PLC |