GB937855A - Process for the production of resole resin foams - Google Patents
Process for the production of resole resin foamsInfo
- Publication number
- GB937855A GB937855A GB3985460A GB3985460A GB937855A GB 937855 A GB937855 A GB 937855A GB 3985460 A GB3985460 A GB 3985460A GB 3985460 A GB3985460 A GB 3985460A GB 937855 A GB937855 A GB 937855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- resole
- formaldehyde
- urea
- acid
- 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
- 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
-
- 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
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A process for the production of a structural foam comprises mixing a resole resin, a second resin, an acid curing catalyst and a finely divided metal capable of reacting with the acid to produce hydrogen. The "second resin" is a resin which is compatible with the resole resin, is capable of being cured to a cross-linked product under the action of the acid catalyst and has a different rate of cure from that of the resole resin. It can be a different resole resin or a urea-formaldehyde or epoxide resin (containing at least one epoxide group per molecule). Hydrochloric and phosphoric are suitable acids and aluminium, magnesium and zinc are suitable metals. In the examples the resole is made by reacting 1 mole of phenol with 2,1 moles of formaldehyde in the presence of sodium hydroxide, removing the water and neutralizing the catalyst. Foams are prepared by (1) mixing resole, liquid urea-formaldehyde resin, methylated spirits, polyoxyalkylene derivative of sorbitol monolaurate (surface active agent) and aluminium powder and adding a mixture of concentrated hydrochloric and phosphoric acids; (2) a similar process in which epoxide resin (from bisphenol A and epichlorohydrin) replaces the urea-formaldehyde resin.ALSO:A process for the production of a structural foam comprises mixing a resole resin, a second resin, an acid curing catalyst and a finely divided metal capable of reacting with the acid to produce hydrogen. The "second resin" is a resin which is compatible with the resole resin, is capable of being cured to a cross-linked product under the action of the acid catalyst and has a different rate of cure from that of the resole resin. It can be a different resole resin or a urea-formaldehyde or epoxide resin. Hydrochloric and phosphoric are suitable acids and aluminium, magnesium and zinc are suitable metals. In the examples the resole resin is made by reacting 1 mole of phenol with 2,1 moles of formaldehyde in the presence of sodium hydroxide, removing the water and neutralizing the catalyst. Foams are prepared by (1) mixing resole, liquid ureaformaldehyde resin, methylated spirits, polyoxyalkylene derivative of sorbitol mono-laurate (surface active agent) and aluminium powder and adding a mixture of concentrated hydrochloric and phosphoric acids; (2) a similar process in which epoxide resin (from bisphenol A and epichlorohydrin) replaces the urea-formaldehyde resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3985460A GB937855A (en) | 1960-11-19 | 1960-11-19 | Process for the production of resole resin foams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3985460A GB937855A (en) | 1960-11-19 | 1960-11-19 | Process for the production of resole resin foams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB937855A true GB937855A (en) | 1963-09-25 |
Family
ID=10411851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3985460A Expired GB937855A (en) | 1960-11-19 | 1960-11-19 | Process for the production of resole resin foams |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB937855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389094A (en) * | 1963-10-10 | 1968-06-18 | Union Carbide Corp | Foaming phenol-formaldehyde resins with fluorocarbons |
| US3389095A (en) * | 1963-12-16 | 1968-06-18 | Dow Chemical Co | Process for stabilizing phenolic foam with alkylene oxide and product obtained therefrom |
-
1960
- 1960-11-19 GB GB3985460A patent/GB937855A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389094A (en) * | 1963-10-10 | 1968-06-18 | Union Carbide Corp | Foaming phenol-formaldehyde resins with fluorocarbons |
| US3389095A (en) * | 1963-12-16 | 1968-06-18 | Dow Chemical Co | Process for stabilizing phenolic foam with alkylene oxide and product obtained therefrom |
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