GB1358519A - Process for the production of foams - Google Patents
Process for the production of foamsInfo
- Publication number
- GB1358519A GB1358519A GB2558972A GB2558972A GB1358519A GB 1358519 A GB1358519 A GB 1358519A GB 2558972 A GB2558972 A GB 2558972A GB 2558972 A GB2558972 A GB 2558972A GB 1358519 A GB1358519 A GB 1358519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyisocyanate
- groups
- prepared
- acid ester
- reacting
- 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
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
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/487—Polyethers containing cyclic groups
- C08G18/4879—Polyethers containing cyclic groups containing aromatic groups
-
- 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
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7837—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
1358519 Polyurethane foams BAYER AG 1 June 1972 [3 June 1971] 25589/72 Heading C3R Polyurethane foams are prepared by reacting a linear polyether having a M.W. of 150 to 750, with a polyisocyanate solution of a polyisocyanate containing at least one allophanic acid ester group and at least 3 NCO- groups in a polyisocyanate or polyisocyanate mixture free from allophanic acid ester groups, in the presence of at least 0À5 p.b.w., based on 100 p.b.w. of the polyether, of water as blowing agent. The polyethers are most suitably initiated with aromatic compounds containing 2 active hydrogen atoms, and preferably contain at least 5% of primary OH groups. The allophanate polyisocyanates may be prepared by reacting N-substituted carbamic acid esters, which may contain NCO groups with isocyanates. Most preferably the polyisocyanate solutions are prepared in a single operation by reacting compounds containing OH groups with excess polyisocyanate, through the N-substituted carbamic acid ester stage into the allophanate polyisocyanate dissolved in excess monomeric polyisocyanate. Conventional blowing agents, surfactants and catalysts may be included in the foam-forming reaction mixture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712127503 DE2127503A1 (en) | 1971-06-03 | 1971-06-03 | Process for the production of foams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1358519A true GB1358519A (en) | 1974-07-03 |
Family
ID=5809683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2558972A Expired GB1358519A (en) | 1971-06-03 | 1972-06-01 | Process for the production of foams |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS544396B1 (en) |
| BE (1) | BE784330A (en) |
| BR (1) | BR7203587D0 (en) |
| DE (1) | DE2127503A1 (en) |
| ES (1) | ES403448A1 (en) |
| FR (1) | FR2140226B1 (en) |
| GB (1) | GB1358519A (en) |
| IT (1) | IT958139B (en) |
| NL (1) | NL7207535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020160206A1 (en) * | 2019-01-31 | 2020-08-06 | Dow Global Technologies Llc | Isocyanate reactive compositions |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3825147A1 (en) * | 1988-07-23 | 1990-03-08 | Bayer Ag | METHOD FOR PRODUCING POLYURETHANE FOAMS |
| WO2022096390A1 (en) * | 2020-11-06 | 2022-05-12 | Covestro Deutschland Ag | Method for producing a polyol mixture |
-
1971
- 1971-06-03 DE DE19712127503 patent/DE2127503A1/en not_active Withdrawn
-
1972
- 1972-05-30 IT IT5059472A patent/IT958139B/en active
- 1972-06-01 GB GB2558972A patent/GB1358519A/en not_active Expired
- 1972-06-02 ES ES403448A patent/ES403448A1/en not_active Expired
- 1972-06-02 BE BE784330A patent/BE784330A/en unknown
- 1972-06-02 FR FR7220010A patent/FR2140226B1/fr not_active Expired
- 1972-06-02 NL NL7207535A patent/NL7207535A/xx unknown
- 1972-06-02 BR BR358772A patent/BR7203587D0/en unknown
- 1972-06-02 JP JP5440972A patent/JPS544396B1/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020160206A1 (en) * | 2019-01-31 | 2020-08-06 | Dow Global Technologies Llc | Isocyanate reactive compositions |
| CN113286834A (en) * | 2019-01-31 | 2021-08-20 | 陶氏环球技术有限责任公司 | Isocyanate-reactive composition |
| CN113286834B (en) * | 2019-01-31 | 2023-06-13 | 陶氏环球技术有限责任公司 | Isocyanate-reactive compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| ES403448A1 (en) | 1975-04-16 |
| NL7207535A (en) | 1972-12-05 |
| IT958139B (en) | 1973-10-20 |
| FR2140226B1 (en) | 1977-12-23 |
| BR7203587D0 (en) | 1973-05-10 |
| BE784330A (en) | 1972-12-04 |
| FR2140226A1 (en) | 1973-01-12 |
| JPS544396B1 (en) | 1979-03-06 |
| DE2127503A1 (en) | 1972-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1288688A (en) | ||
| GB1267011A (en) | ||
| US3903127A (en) | Process for the production of polyisocyanates with a biuret structure | |
| GB1530225A (en) | Process for the production of polyurethane foams | |
| GB1303201A (en) | ||
| GB1498615A (en) | Process for the production of polyisocyanate mixtures containing blocked isocyanate groups | |
| GB1516517A (en) | Process for the production of polyureas or polyurethane-polyureas | |
| GB1388228A (en) | Process for the production of polyurethane foam | |
| GB1258600A (en) | ||
| GB1406511A (en) | Cellular polyurethanes | |
| GB1450523A (en) | Process for the production of polyisocyanates 2,4,6-tri | |
| GB1165830A (en) | Process for the preparation of Polyurethanes | |
| GB1133691A (en) | Polyurethane foams | |
| GB1492246A (en) | Flame-and smoke-resistant polyurethane foam and a method for producing the same | |
| GB1442024A (en) | Method of preparing polyisocyanates which are blocked with dialky malonates | |
| GB1515523A (en) | Process for the production of polyisocyanates | |
| GB1358519A (en) | Process for the production of foams | |
| GB1472759A (en) | Process for the production of polyurethane foams | |
| GB1425494A (en) | Flexible polyetherurethane foams | |
| GB1360019A (en) | Process for the production of non-inflammable rigid foams containing urethane groups | |
| GB1493120A (en) | Process for producing polyurethane foams | |
| GB1241038A (en) | Polyurethanes | |
| GB1255660A (en) | Method for the production of polyurethane foams | |
| GB1289186A (en) | ||
| ES224837A1 (en) | Treatment of flexible cellular polyurethane material with ammonia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |