GB853926A - Curing of rubber latex and the productionof articles therefrom - Google Patents
Curing of rubber latex and the productionof articles therefromInfo
- Publication number
- GB853926A GB853926A GB1504456A GB1504456A GB853926A GB 853926 A GB853926 A GB 853926A GB 1504456 A GB1504456 A GB 1504456A GB 1504456 A GB1504456 A GB 1504456A GB 853926 A GB853926 A GB 853926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- rubber
- butadiene
- radiation
- exposed
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- 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
- C08J2321/02—Latex
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Natural or synthetic rubber latex is cured by subjecting it in the form of an aqueous dispersion to irradiation by high energy electrons, X-rays, alpha, beta, or gamma rays, protons, deuterons, or neutrons. The latex may be of Hevea brasiliensis, kok-saghyz, gutta-percha, bata, a polymer of a diene hydrocarbon, e.g.polybutadiene, or a copolymer of a diene with another compound, e.g. butadiene-acrylonitrile or butadiene-styrene copolymer, or a polymer of a substituted conjugated diene containing the group CH2 : C.Cl, e.g. polychloroprene. The prefered sources of radiation are linear accelerators and radioactive cobalt, and the preferred dosage of radiation is 3 X 106 to 1 X 108 Roentgens. The cured latex may be used for producing rubber articles without the addition of sulphur or other curing agent. Articles may be formed by dipping with or without the use of coagulant. Foam rubber may be prepared by whipping the latex to a froth after addition of a soap and then gelling the froth, and rubber threads may be prepared by extruding the cured latex through jets into a coagulant. In all cases the product is dried either at room temperature or at about 40 DEG C. Examples are described in which (1) natural rubber latex is exposed to gamma radiation from radioactive cobalt, (2) natural rubber latex is exposed to a beam of high energy electrons from a linear accelerator, and (3) a latex produced by the emulsion copolymerization of butadiene and styrene is exposed to gamma radiation from radioactive cobalt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1504456A GB853926A (en) | 1956-05-15 | 1956-05-15 | Curing of rubber latex and the productionof articles therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1504456A GB853926A (en) | 1956-05-15 | 1956-05-15 | Curing of rubber latex and the productionof articles therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB853926A true GB853926A (en) | 1960-11-09 |
Family
ID=10052060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1504456A Expired GB853926A (en) | 1956-05-15 | 1956-05-15 | Curing of rubber latex and the productionof articles therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB853926A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239247A (en) * | 1989-12-23 | 1991-06-26 | Okamoto Ind Inc | Rubber gloves |
US5039461A (en) * | 1988-10-21 | 1991-08-13 | Okamoto Industries Inc. | Process for making balloon |
US5076975A (en) * | 1988-06-28 | 1991-12-31 | Uniroyal Plastics Company, Inc. | Production of radiation cured elastomer coated passive restraint device |
EP1296576A1 (en) * | 2000-03-27 | 2003-04-02 | Regent Medical Limited | DIP-MOLDED MEDICAL DEVICES FROM i CIS /i -1,4-POLYISOPRENE |
EP1762586A3 (en) * | 2005-09-12 | 2007-10-17 | Semperit Aktiengesellschaft Holding | Method for producing a crosslinked elastomer |
-
1956
- 1956-05-15 GB GB1504456A patent/GB853926A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076975A (en) * | 1988-06-28 | 1991-12-31 | Uniroyal Plastics Company, Inc. | Production of radiation cured elastomer coated passive restraint device |
US5039461A (en) * | 1988-10-21 | 1991-08-13 | Okamoto Industries Inc. | Process for making balloon |
GB2239247A (en) * | 1989-12-23 | 1991-06-26 | Okamoto Ind Inc | Rubber gloves |
GB2239247B (en) * | 1989-12-23 | 1993-07-14 | Okamoto Ind Inc | Rubber gloves |
EP1296576A1 (en) * | 2000-03-27 | 2003-04-02 | Regent Medical Limited | DIP-MOLDED MEDICAL DEVICES FROM i CIS /i -1,4-POLYISOPRENE |
EP1296576A4 (en) * | 2000-03-27 | 2004-11-03 | Lrc Products | DIP-MOLDED MEDICAL DEVICES FROM i CIS /i -1,4-POLYISOPRENE |
EP1762586A3 (en) * | 2005-09-12 | 2007-10-17 | Semperit Aktiengesellschaft Holding | Method for producing a crosslinked elastomer |
US9279038B2 (en) | 2005-09-12 | 2016-03-08 | Semperit Aktiengesellschaft Holding | Method for producing cross-linked elastomer |
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