GB1035903A - Polyurethane foams - Google Patents
Polyurethane foamsInfo
- Publication number
- GB1035903A GB1035903A GB4027561A GB4027561A GB1035903A GB 1035903 A GB1035903 A GB 1035903A GB 4027561 A GB4027561 A GB 4027561A GB 4027561 A GB4027561 A GB 4027561A GB 1035903 A GB1035903 A GB 1035903A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- parts
- encapsulated
- capsules
- micro
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/247—Moulding polymers or prepolymers containing ingredients in a frangible packaging, e.g. microcapsules
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/008—Using vibrations during moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A process for the production of polyurethane foams comprising forming a mixture of a poly-alkylene glycol, a blowing agent, a polyisocyanate and a catalyst, the latter encapsulated in micro-capsules, and subsequently initiating the foam-forming reaction by rupturing the micro-capsules so that the catalyst comes into contact with the reactants. The catalyst may consist of two or more ingredients encapsulated singly or in unreactive combinations. An activator and/or a co-catalyst may be incorporated in the catalyst, e.g. stannous octoate or another oil-soluble salt of tin may be used with an amine catalyst, e.g. triethylene diamine. The capsules may be ruptured by submitting to ultrasonic waves or by dielectric heating, e.g. by use of a medium of low melting point, e.g. 30-40 DEG C. and high dielectric constant. In an example an aqueous solution of triethylene diamine was encapsulated in a chlorinated hydrocarbon capsule of 1 to 2a . Stannous octaoate was also encapsulated and 3.5 parts of the amine solution and 0.3 parts of the tin compound were added to 100 parts of polypropylene glycol and 40 parts of tolylene diisocyanate containing 0.7 parts of a silicon oil, and subjected to dielectric heating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4027561A GB1035903A (en) | 1961-11-10 | 1961-11-10 | Polyurethane foams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4027561A GB1035903A (en) | 1961-11-10 | 1961-11-10 | Polyurethane foams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1035903A true GB1035903A (en) | 1966-07-13 |
Family
ID=10414071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4027561A Expired GB1035903A (en) | 1961-11-10 | 1961-11-10 | Polyurethane foams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1035903A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152102A2 (en) * | 1984-02-14 | 1985-08-21 | Kureha Kagaku Kogyo Kabushiki Kaisha | A process for preparing a composite laminate film |
EP0171919A2 (en) * | 1984-07-09 | 1986-02-19 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for laminating heat shrinkable films |
EP0224382A2 (en) * | 1985-11-21 | 1987-06-03 | LOCTITE (IRELAND) Ltd. | Method of activating chemical compositions |
WO2000017248A1 (en) * | 1998-09-22 | 2000-03-30 | Huntsman Ici Chemicals Llc | Process for making rigid polyurethane and polyisocyanurate foams |
WO2002031013A1 (en) * | 2000-10-12 | 2002-04-18 | Basf Aktiengesellschaft | Catalyst system, containing catalysts encapsulated in wax |
WO2003085021A1 (en) * | 2002-04-10 | 2003-10-16 | Basf Aktiengesellschaft | Catalyst systems containing catalysts that are embedded in wax |
WO2007090376A1 (en) * | 2006-02-09 | 2007-08-16 | Fachhochschule Münster | Low-emission polyurethanes |
EP2809699A4 (en) * | 2012-02-02 | 2015-09-30 | Arkema Inc | Improved shelf life of polyol blends containing halogenated olefins by encapsulation of active components |
CN112079980A (en) * | 2020-09-10 | 2020-12-15 | 浙江华峰合成树脂有限公司 | Polyurethane composite catalyst, solvent-free polyurethane resin thereof and preparation method |
-
1961
- 1961-11-10 GB GB4027561A patent/GB1035903A/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152102A2 (en) * | 1984-02-14 | 1985-08-21 | Kureha Kagaku Kogyo Kabushiki Kaisha | A process for preparing a composite laminate film |
EP0152102A3 (en) * | 1984-02-14 | 1986-12-03 | Kureha Kagaku Kogyo Kabushiki Kaisha | A process for preparing a composite laminate film |
EP0171919A2 (en) * | 1984-07-09 | 1986-02-19 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for laminating heat shrinkable films |
EP0171919A3 (en) * | 1984-07-09 | 1986-11-20 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for laminating heat shrinkable films |
EP0224382A2 (en) * | 1985-11-21 | 1987-06-03 | LOCTITE (IRELAND) Ltd. | Method of activating chemical compositions |
EP0224382A3 (en) * | 1985-11-21 | 1989-01-18 | Loctite (Ireland) Ltd. | Method of activating chemical compositions |
WO2000017248A1 (en) * | 1998-09-22 | 2000-03-30 | Huntsman Ici Chemicals Llc | Process for making rigid polyurethane and polyisocyanurate foams |
WO2002031013A1 (en) * | 2000-10-12 | 2002-04-18 | Basf Aktiengesellschaft | Catalyst system, containing catalysts encapsulated in wax |
WO2003085021A1 (en) * | 2002-04-10 | 2003-10-16 | Basf Aktiengesellschaft | Catalyst systems containing catalysts that are embedded in wax |
WO2007090376A1 (en) * | 2006-02-09 | 2007-08-16 | Fachhochschule Münster | Low-emission polyurethanes |
EP2809699A4 (en) * | 2012-02-02 | 2015-09-30 | Arkema Inc | Improved shelf life of polyol blends containing halogenated olefins by encapsulation of active components |
US9556335B2 (en) | 2012-02-02 | 2017-01-31 | Arkema Inc. | Shelf life of polyol blends containing halogenated olefins by encapsulation of active components |
CN112079980A (en) * | 2020-09-10 | 2020-12-15 | 浙江华峰合成树脂有限公司 | Polyurethane composite catalyst, solvent-free polyurethane resin thereof and preparation method |
CN112079980B (en) * | 2020-09-10 | 2022-05-03 | 浙江华峰合成树脂有限公司 | Polyurethane composite catalyst, solvent-free polyurethane resin thereof and preparation method |
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