GB697142A - Method of making sponge rubber - Google Patents
Method of making sponge rubberInfo
- Publication number
- GB697142A GB697142A GB2191251A GB2191251A GB697142A GB 697142 A GB697142 A GB 697142A GB 2191251 A GB2191251 A GB 2191251A GB 2191251 A GB2191251 A GB 2191251A GB 697142 A GB697142 A GB 697142A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- effected
- mixture
- curing
- solution
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
<PICT:0697142/IV (a)/1> Sponge rubber is produced by mixing a latex of synthetic rubber with 2.25 per cent by volume of a solution of sodium silicate having a density of 41 DEG B<\>ae and a ratio of sodium to silica of 1 : 3.22, introducing nitrous oxide gas into the mixture, subjecting the mixture to high speed agitation and curing. In an example, a mixture is made consisting of 50 per cent neoprene latex, sodium silicate solution of 41 DEG B<\>ae, castor oil and a solution of sodium silicofluoride and introduced into a pressure mixing vessel 44, Fig. 3, by means of a supply pipe 46, nitrous acid gas is supplied under pressure through pipe 48, agitating being effected by blades 52, the foamed latex passes on to endless belt 56 through oven 59 in which partial curing is effected and then through a bath of hydrochloric acid 60 and a water bath 61, curing is then completed by means of infra-red lamps 63 and the product wound on to a reel 64. In a modified apparatus, Fig. 1 (not shown), mixing is effected at air pressure and the product is cured and dried without using infra-red lamps. The latex may also be of polyvinyl chloride, butadiene-styrene copolymer, butadiene-acrylonitrile copolymer or polyvinylidene chloride. In addition albumen, accelerators, vulcanizing agents and proteins may be added, and the foam may be stabilized with alpha cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2191251A GB697142A (en) | 1951-09-18 | 1951-09-18 | Method of making sponge rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2191251A GB697142A (en) | 1951-09-18 | 1951-09-18 | Method of making sponge rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB697142A true GB697142A (en) | 1953-09-16 |
Family
ID=10170886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2191251A Expired GB697142A (en) | 1951-09-18 | 1951-09-18 | Method of making sponge rubber |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB697142A (en) |
-
1951
- 1951-09-18 GB GB2191251A patent/GB697142A/en not_active Expired
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