GB1063508A - Foamed polyurethanes and their preparation - Google Patents
Foamed polyurethanes and their preparationInfo
- Publication number
- GB1063508A GB1063508A GB4277665A GB4277665A GB1063508A GB 1063508 A GB1063508 A GB 1063508A GB 4277665 A GB4277665 A GB 4277665A GB 4277665 A GB4277665 A GB 4277665A GB 1063508 A GB1063508 A GB 1063508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compound
- organic
- ethylene oxide
- organic nitrogen
- condensing
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
-
- 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
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
-
- 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
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1858—Catalysts containing secondary or tertiary amines or salts thereof having carbon-to-nitrogen double bonds
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
A one-step method for preparing a rigid foamed polyurethane in situ on a surface comprises applying to the surface an organic polyisocyanate or polyisothiocyanate and as the sole or major hydroxyl group containing component an active polyol, and an organic nitrogen compound containing at least one primary or secondary amino group and at least one hydroxyl group, a 1,1,3,3-tetra-alkyl-guanidine as catalyst and a foaming agent that is a gaseous organic compound, a volatile organic liquid or water, the amount of organic nitrogen compound being at least 5% of the combined weight of active polyol and organic nitrogen compound. The term "active polyol" is defined as a polyalkylene ether polyhydroxy compound containing at least three hydroxyl groups and which by virtue of its mode of preparation, contains in a given weight thereof a higher proportion of primary hydroxyl groups than the same weight of a polyalkylene ether polyhydroxy compound of comparable equivalent weight prepared by condensing a low M.W. polyhydroxy compound with a 1,2-epoxy compound other than ethylene oxide in the presence of a non-acidic condensation catalyst. Suitable active polyols are those prepared by condensing a low M.W. polyhydroxy compound, e.g. glycerol, with a 1,2-epoxy compound, other than ethylene oxide, in the presence of an acidic condensation catalyst or by effecting condensation with a non-acidic catalyst provided the resulting condensation product is further reacted with ethylene oxide to satisfy the above condition or by condensing a low M.W. polyhydroxy compound with ethylene oxide using any suitable condensation catalyst. Conventional polyisocyanates and polyisothiocyanates may be use, but diisocyanato- or diisothiocyanato-diaryl methanes are preferred. The preferred organic nitrogen compounds are dialkanolamines especially those wherein each hydroxyalkyl radical contains from 2 to 4 carbon atoms, and the preferred 1,1,3,3-tetraalkylguanidine is 1,1,3,3-tetramethylguanidine. The foamable compositions may also contain a trialkylamine, a tin salt of an aliphatic carboxylic acid and a foam stabilizer. Preferred foaming agents are water or an organic compound which is liquid or gaseous at 0 DEG C., e.g. trichlorofluoromethane. The foamable composition is usually sprayed on to a suitable surface either by bringing the separate components together in a mixing device and then spraying or by mixing two components (a) the active polyol, organic nitrogen compound and guanidine derivative and (b) the polyisocyanate or polyisothiocyanate. The foaming agent may be present in component (c) and (b). Paper and steel may be coated with the foamable compositions (see Division B2).ALSO:A surface consisting of paper or steel may be coated with a polyurethane forming foamable composition comprising an organic polyisocyanate or polyisothiocyanate, an active polyol, an organic nitrogen compound containing at least one primary or secondary amino group and at least one hydroxyl group. A 1,1,3,3-tetraalkylguanidine, and a foaming agent that is a gaseous organic compound, a volatile organic liquid or water, the amount of organic nitrogen compound being at least 5% of the combined weight of active polyol and organic nitrogen compound. The term "active polyol" is defined as a polyalkylene ether polyhydroxy compound containing at least 3 hydroxyl groups and which by virtue of its mode of preparation contains in a given weight thereof a higher proportion of primary hydroxyl groups than the same weight of a similar compound of comparable equivalent weight prepared by condensing a low M.W. polyhydroxy compound with a 1,2-epoxy compound other than ethylene oxide in the presence of a non-acidic condensation catalyst. Suitable active polyols are those prepared by condensing a low M.W. polyhydroxy compound with a 1,2-epoxy compound other than ethylene oxide in the presence of an acidic condensation catalyst or by effecting condensation with a non-acidic catalyst provided the resulting condensation product is further reacted with ethylene oxide to satisfy the above condition or by condensing a low M.W. polyhydroxy compound with ethylene oxide using any suitable condensation catalyst. Examples describe the coating of paper and steel with a composition comprising two components (a) a glycerol/1,2-propylene oxide condensation product, an organic nitrogen compound which is diisopropanolamine or diethanolamine, a catalyst system comprising 1,1,3,3-tetramethylguanidine in conjunction with dibutyltridilaurate and triethylamine, trichlorofluoromethane as foaming agent and a silicone foam stabilizer and (b) p,p\sv-diphenylmethane diisocyanate, trichloroethyl phosphate and trichloromonofluoromethane. In some examples component (a) does not contain any foaming agent. The two components were mixed and then sprayed onto the test surface.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4277665A GB1063508A (en) | 1965-10-08 | 1965-10-08 | Foamed polyurethanes and their preparation |
FR79021A FR92304E (en) | 1965-10-08 | 1966-10-06 | Process for preparing rigid polyurethane foam |
DE19661645393 DE1645393A1 (en) | 1965-10-08 | 1966-10-06 | Process for the production of rigid foam polyurethanes |
BE687889D BE687889A (en) | 1965-10-08 | 1966-10-06 | |
SE1349966A SE302044B (en) | 1965-10-08 | 1966-10-06 | |
NL6614073A NL6614073A (en) | 1965-10-08 | 1966-10-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4277665A GB1063508A (en) | 1965-10-08 | 1965-10-08 | Foamed polyurethanes and their preparation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1063508A true GB1063508A (en) | 1967-03-30 |
Family
ID=10425930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4277665A Expired GB1063508A (en) | 1965-10-08 | 1965-10-08 | Foamed polyurethanes and their preparation |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE687889A (en) |
DE (1) | DE1645393A1 (en) |
GB (1) | GB1063508A (en) |
NL (1) | NL6614073A (en) |
SE (1) | SE302044B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013019488A1 (en) | 2011-07-29 | 2013-02-07 | Air Products And Chemicals, Inc. | Reduced emissions low density spray polyurethane foam |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110818870B (en) * | 2018-08-14 | 2021-12-07 | 上海富元塑胶科技有限公司 | Oligomer auxiliary agent and preparation method and application thereof |
-
1965
- 1965-10-08 GB GB4277665A patent/GB1063508A/en not_active Expired
-
1966
- 1966-10-06 DE DE19661645393 patent/DE1645393A1/en active Pending
- 1966-10-06 SE SE1349966A patent/SE302044B/xx unknown
- 1966-10-06 NL NL6614073A patent/NL6614073A/xx unknown
- 1966-10-06 BE BE687889D patent/BE687889A/xx unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013019488A1 (en) | 2011-07-29 | 2013-02-07 | Air Products And Chemicals, Inc. | Reduced emissions low density spray polyurethane foam |
CN103717633A (en) * | 2011-07-29 | 2014-04-09 | 气体产品与化学公司 | Reduced emissions low density spray polyurethane foam |
JP2014521803A (en) * | 2011-07-29 | 2014-08-28 | エア プロダクツ アンド ケミカルズ インコーポレイテッド | Low release low density spray polyurethane foam |
RU2572626C2 (en) * | 2011-07-29 | 2016-01-20 | Эр Продактс Энд Кемикалз, Инк. | Foam polyurethane composition, method of producing foam polyurethane and catalyst composition used therefor |
CN103717633B (en) * | 2011-07-29 | 2016-08-17 | 气体产品与化学公司 | Reduce the low-density polyurethane spray foam of discharge |
US10106638B2 (en) | 2011-07-29 | 2018-10-23 | Evonik Degussa Gmbh | Reduced emissions low density spray polyurethane foam |
Also Published As
Publication number | Publication date |
---|---|
NL6614073A (en) | 1967-04-10 |
BE687889A (en) | 1967-04-06 |
DE1645393A1 (en) | 1970-04-23 |
SE302044B (en) | 1968-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3980579A (en) | Catalytically stable halogenated polyol composition | |
JPS5565214A (en) | Preparation of flame-resistant polyisocyanurate foam | |
GB924111A (en) | Process for the manufacture of foamed polyurethanes | |
JPS54111598A (en) | Preparation of flame-retardant, low-smoking rigid polyurethane foam | |
WO1987000186A1 (en) | Methods of preparing rigid polyurethane foams, and precursor compositions therefor | |
GB1388228A (en) | Process for the production of polyurethane foam | |
ES8700281A1 (en) | An active hydrogen-containing composition containing a dialkanol tertiary amine and a process for preparing a polyurethane foam. | |
GB1063508A (en) | Foamed polyurethanes and their preparation | |
ATE90110T1 (en) | PROCESS FOR THE MANUFACTURE OF A COATING AGENT. | |
US4219624A (en) | Stabilization of amine catalysts in a composition with halogenated polyols for use in polyurethane foam production | |
DE2251889C2 (en) | Process for the production of rigid polyurethane foams in situ on a surface | |
GB942387A (en) | Polyurethane foams and methods of making them | |
ES2078564T3 (en) | HYDROPHILIC POLYURETHANES WITH OLEPHINE INSATURATION AND THEIR USE AS REACTIVE EMULSIFIERS. | |
GB794403A (en) | Improvements in manufacture of cellular foams derived from polyisocyanates and polyalkylene ether glycols | |
US4008188A (en) | On-site generation of polyurethane foam | |
GB1354576A (en) | Method for the production of a hydrophilic polyurethane foam | |
EP0145269B1 (en) | Polyurethane coating compositions | |
JPH04351620A (en) | Foamable polyurethane composition | |
GB915238A (en) | Patent leather finishes | |
GB1433645A (en) | Polyisocyanurate composition related products and processes | |
GB797965A (en) | Polyisocyanate compositions and foams produced therefrom | |
GB874859A (en) | Process for the production of foam materials containing urethane groups | |
GB1230277A (en) | ||
JPS6141928B2 (en) | ||
GB1001983A (en) | Improvements in or relating to polyurethanes |