GB754553A - Reinforced latex foam rubber sponge - Google Patents
Reinforced latex foam rubber spongeInfo
- Publication number
- GB754553A GB754553A GB7920/54A GB792054A GB754553A GB 754553 A GB754553 A GB 754553A GB 7920/54 A GB7920/54 A GB 7920/54A GB 792054 A GB792054 A GB 792054A GB 754553 A GB754553 A GB 754553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resorcinol
- frothed
- latex
- parts
- formaldehyde resin
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- 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
- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
Landscapes
- 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)
Abstract
In a method of making a sponge material comprising frothing natural or synthetic rubber latex, a thermo-setting phenol-aldehyde resin is incorporated in the latex before, during, or after frothing of the latter. In an example, 50 parts natural rubber latex and 50 parts of GR-S synthetic rubber latex are mixed with rosin soap, potassium oleate, alkylated phenol emulsion as antioxidant, sulphur, zinc mercapto-benzothiazyl, and butyl zimate, and frothed. To the froth is then added zinc oxide, 3 or 5 parts of an aqueous solution of a partially condensed resorcinol-formaldehyde resin, and sodium silicofluoride. Alternatively a resorcinol-formaldehyde resin is formed within the foam by adding aqueous solutions of resorcinol and hexamethylene tetramine or paraformaldehyde after the addition of zinc oxide. The water soluble resorcinol-formaldehyde resin may be prepared by dissolving resorcinol in formaldehyde in the presence of water, adding a trace of ferric chloride and then an aqueous solution of sodium hydroxide. An inert filler, such as clay, titanium dioxide, or ferric oxide may be incorporated in the mix to be frothed. The frothed mix is gelled by adding sodium silicofluoride and subjecting to the action of high-frequency alternating currents. The frothed latex does not tend to flow and may be shaped, e.g. so as to have a fluted surface, prior to gelation. The vulcanized sponge also has the property that it may easily be provided with a surface design by the application of a heated design forming means.ALSO:In a method of making a sponge material comprising frothing natural or synthetic rubber latex, a thermo-setting phenol-aldehyde resin is incorporated in the latex before, during, or after frothing of the latex. In an example 50 parts natural rubber latex and 50 parts of GR-S synthetic rubber latex are mixed with rosin soap, potassium oleate, alkylated phenol emulsion as antioxidant, sulphur, zinc mercaptobenzothiazyl, and butyl zimate, and frothed. To the froth is then added zinc oxide, 3 or 5 parts of an aqueous solution of a partially condensed resorcinol-formaldehyde resin, and sodium silicofluoride. Alternatively a resorcinol-formaldehyde resin is formed within the foam by adding aqueous solutions of resorcinol and hexamethylene tetramine or paraformaldehyde after the addition of zinc oxide. The water soluble resorcinol-formaldehyde resin may be prepared by dissolving resorcinol in formaldehyde in the presence of water, adding a trace of ferric chloride and then an aqueous solution of sodium hydroxide. An inert-filler, such as clay, titanium dioxide, or ferric oxide may be incorporated in the mix to be frothed. The frothed mix is gelled by adding sodium silicofluoride and subjecting to the action of a high frequency alternating currents. The frothed latex does not tend to flow and may be shaped, e.g. so as to have a fluted surface, prior to gelation. The vulcanized sponge also has the property that it may easily be provided with a surface design by the application of a heated design forming means.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US754553XA | 1953-06-24 | 1953-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB754553A true GB754553A (en) | 1956-08-08 |
Family
ID=22125874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7920/54A Expired GB754553A (en) | 1953-06-24 | 1954-03-18 | Reinforced latex foam rubber sponge |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB754553A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215647A (en) * | 1962-06-19 | 1965-11-02 | Dow Chemical Co | Synthetic rubber latex foam containing a coreactive material and process of making same |
| US3673133A (en) * | 1961-12-18 | 1972-06-27 | Firestone Tire & Rubber Co | Synthetic latex foam rubber and method of making same |
| CN113860293A (en) * | 2021-10-02 | 2021-12-31 | 无锡华鑫检测技术有限公司 | Preparation method of graphene oxide sponge with formaldehyde decomposition function |
-
1954
- 1954-03-18 GB GB7920/54A patent/GB754553A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673133A (en) * | 1961-12-18 | 1972-06-27 | Firestone Tire & Rubber Co | Synthetic latex foam rubber and method of making same |
| US3215647A (en) * | 1962-06-19 | 1965-11-02 | Dow Chemical Co | Synthetic rubber latex foam containing a coreactive material and process of making same |
| CN113860293A (en) * | 2021-10-02 | 2021-12-31 | 无锡华鑫检测技术有限公司 | Preparation method of graphene oxide sponge with formaldehyde decomposition function |
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