GB659571A - Frothed latex sponge rubber - Google Patents
Frothed latex sponge rubberInfo
- Publication number
- GB659571A GB659571A GB29999/48A GB2999948A GB659571A GB 659571 A GB659571 A GB 659571A GB 29999/48 A GB29999/48 A GB 29999/48A GB 2999948 A GB2999948 A GB 2999948A GB 659571 A GB659571 A GB 659571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- added
- frothed
- rubber latex
- paraffin wax
- scrap
- 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
- C08J9/35—Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (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
A frothed rubber latex sponge contains frothed scrap rubber latex particles of at least 32 mesh, the amount added being between 1 and 40 per cent by weight. The term "rubber latex" includes synthetic latices, e.g. polychloroprene, butadiene-styrene and butadiene-acrylonitrile copolymers, and mixtures thereof. The usual stabilizers, thickeners, anti-oxidants, accelerators are added and modifiers, e.g. castor oil to improve elasticity; carbon blacks as loaders; magnesium oxide and calcium silicate as stiffeners; paraffin wax to improve its fire resistance; and various dyes may also be added. In an example the natural rubber has potassium oleate and rosinate added, followed by a synthetic latex of butadiene-styrene containing ethyl zimate, paraffin wax coated zinc mercaptobenzothiazole and an emulsion of paraffin wax. The mix is matured at 100 DEG F. and then sym. di-b -naphthalene-p-phenylenediamine, an aqueous dispersion of carbon black and potassium oleate are added and the whole stirred. Scrap sponge is added and the mixture frothed, followed by the addition of zinc oxide, diphenyl guanidine, and sodium silicofluoride.ALSO:A frothed rubber latex sponge contains frothed scrap rubber latex particles of at least 32 mesh. The amount of scrap added is between 1 and 40 per cent by weight. Rubber latex includes natural and synthetic latices. Stabilizing agents, e.g. ammonia, alkali metal hydroxides, potassium oleate, rosin soaps, sodium stearate, potassium lauryl sulphate, sulphonated hydrocarbons, and sodium alkyl naphthalene sulphate; thickeners, e.g. casein, gum tragacanth and water glass; antioxidants, e.g. phenyl b -naphthylamine, di-b -naphthyl-p-phenylene diamine and the heptyl-diphenylamines; accelerators, e.g. zinc mercaptobenzothiazole, benzothiazyl disulphide, zinc diethyldithiocarbamate and tetramethyl-thiuram disulphide are specified, and, in addition, modifiers may be added, e.g. castor oil-to improve elasticity; carbon blacks-bonding agents; paraffin wax-improves the " snap " and fire resistance; dyes and colours-to improve appearance; and magnesium oxide and calcium silicate as stiffeners.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US659571XA | 1948-03-26 | 1948-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB659571A true GB659571A (en) | 1951-10-24 |
Family
ID=22066297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29999/48A Expired GB659571A (en) | 1948-03-26 | 1948-11-18 | Frothed latex sponge rubber |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB659571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353660A (en) * | 2022-08-18 | 2022-11-18 | 江苏金世缘乳胶制品股份有限公司 | Method for treating waste materials of natural latex production line |
-
1948
- 1948-11-18 GB GB29999/48A patent/GB659571A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353660A (en) * | 2022-08-18 | 2022-11-18 | 江苏金世缘乳胶制品股份有限公司 | Method for treating waste materials of natural latex production line |
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