FR2478653A1 - Procede pour la stabilisation de la viscosite du caoutchouc naturel au cours du stockage et l'amelioration conjointe de la resistance a la thermo-oxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels ameliores resultant de ce procede - Google Patents
Procede pour la stabilisation de la viscosite du caoutchouc naturel au cours du stockage et l'amelioration conjointe de la resistance a la thermo-oxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels ameliores resultant de ce procede Download PDFInfo
- Publication number
- FR2478653A1 FR2478653A1 FR8006211A FR8006211A FR2478653A1 FR 2478653 A1 FR2478653 A1 FR 2478653A1 FR 8006211 A FR8006211 A FR 8006211A FR 8006211 A FR8006211 A FR 8006211A FR 2478653 A1 FR2478653 A1 FR 2478653A1
- Authority
- FR
- France
- Prior art keywords
- rubber
- latex
- viscosity
- thiosemicarbazide
- rubbers
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 110
- 239000005060 rubber Substances 0.000 title claims abstract description 110
- 244000043261 Hevea brasiliensis Species 0.000 title claims abstract description 26
- 229920003052 natural elastomer Polymers 0.000 title claims abstract description 24
- 229920001194 natural rubber Polymers 0.000 title claims abstract description 24
- 239000004816 latex Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 16
- 230000006872 improvement Effects 0.000 title claims abstract description 9
- 230000006641 stabilisation Effects 0.000 title claims abstract description 6
- 238000011105 stabilization Methods 0.000 title claims abstract description 6
- 238000005345 coagulation Methods 0.000 title claims description 15
- 230000015271 coagulation Effects 0.000 title claims description 15
- 238000007254 oxidation reaction Methods 0.000 title abstract description 4
- BRWIZMBXBAOCCF-UHFFFAOYSA-N hydrazinecarbothioamide Chemical compound NNC(N)=S BRWIZMBXBAOCCF-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229920000126 latex Polymers 0.000 claims abstract description 30
- 238000004073 vulcanization Methods 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 4
- 239000002480 mineral oil Substances 0.000 claims abstract description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 3
- 239000008158 vegetable oil Substances 0.000 claims abstract description 3
- 239000008187 granular material Substances 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 241000238876 Acari Species 0.000 claims description 2
- 241000221020 Hevea Species 0.000 claims 1
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 claims 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 claims 1
- 239000000839 emulsion Substances 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 2
- 238000010077 mastication Methods 0.000 abstract description 2
- 230000018984 mastication Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 235000010446 mineral oil Nutrition 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 19
- 238000002791 soaking Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- NXPHCVPFHOVZBC-UHFFFAOYSA-N hydroxylamine;sulfuric acid Chemical compound ON.OS(O)(=O)=O NXPHCVPFHOVZBC-UHFFFAOYSA-N 0.000 description 4
- 241001441571 Hiodontidae Species 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- ZNBNBTIDJSKEAM-UHFFFAOYSA-N 4-[7-hydroxy-2-[5-[5-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]-5-methyloxolan-2-yl]-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-2-methyl-3-propanoyloxypentanoic acid Chemical compound C1C(O)C(C)C(C(C)C(OC(=O)CC)C(C)C(O)=O)OC11OC(C)(C2OC(C)(CC2)C2C(CC(O2)C2C(CC(C)C(O)(CO)O2)C)C)CC1 ZNBNBTIDJSKEAM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 1
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- XHRCFGDFESIFRG-UHFFFAOYSA-N 2-chloro-n-ethyl-n-[(2-methylphenyl)methyl]ethanamine Chemical compound ClCCN(CC)CC1=CC=CC=C1C XHRCFGDFESIFRG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 241001358279 Malaya Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 241001601010 Stegastes altus Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- DQPBABKTKYNPMH-UHFFFAOYSA-N amino hydrogen sulfate Chemical group NOS(O)(=O)=O DQPBABKTKYNPMH-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
- C08K5/405—Thioureas; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/24—Derivatives of hydrazine
- C08K5/26—Semicarbazides
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)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8006211A FR2478653A1 (fr) | 1980-03-20 | 1980-03-20 | Procede pour la stabilisation de la viscosite du caoutchouc naturel au cours du stockage et l'amelioration conjointe de la resistance a la thermo-oxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels ameliores resultant de ce procede |
| OA57359A OA06773A (fr) | 1980-03-20 | 1981-03-20 | Stabilisation de la viscosité du caoutchouc naturel au cours du stockage et l'amélioration conjointe de la résistance à la thermooxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels améliorés. |
| GB8108883A GB2076828B (en) | 1980-03-20 | 1981-03-20 | Method for stailising the viscosity of natural rubber during storage and the associated improvement of the resistance to thermo-oxidation of rubber produced from the natural coagulation of latex and improved natural rubber resulting from this method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8006211A FR2478653A1 (fr) | 1980-03-20 | 1980-03-20 | Procede pour la stabilisation de la viscosite du caoutchouc naturel au cours du stockage et l'amelioration conjointe de la resistance a la thermo-oxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels ameliores resultant de ce procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2478653A1 true FR2478653A1 (fr) | 1981-09-25 |
| FR2478653B1 FR2478653B1 (OSRAM) | 1983-11-10 |
Family
ID=9239882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8006211A Granted FR2478653A1 (fr) | 1980-03-20 | 1980-03-20 | Procede pour la stabilisation de la viscosite du caoutchouc naturel au cours du stockage et l'amelioration conjointe de la resistance a la thermo-oxydation des caoutchoucs issus de la coagulation naturelle du latex et caoutchoucs naturels ameliores resultant de ce procede |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2478653A1 (OSRAM) |
| GB (1) | GB2076828B (OSRAM) |
| OA (1) | OA06773A (OSRAM) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB543141A (en) * | 1940-04-26 | 1942-02-11 | Us Rubber Co | Improvements in the manufacture of rubber |
| US2396156A (en) * | 1942-08-12 | 1946-03-05 | Du Pont | Stabilization of organic substances |
| GB1484252A (en) * | 1973-10-22 | 1977-09-01 | Rubber Res Inst Of Malaysia | Treatment of rubber |
-
1980
- 1980-03-20 FR FR8006211A patent/FR2478653A1/fr active Granted
-
1981
- 1981-03-20 GB GB8108883A patent/GB2076828B/en not_active Expired
- 1981-03-20 OA OA57359A patent/OA06773A/xx unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB543141A (en) * | 1940-04-26 | 1942-02-11 | Us Rubber Co | Improvements in the manufacture of rubber |
| US2396156A (en) * | 1942-08-12 | 1946-03-05 | Du Pont | Stabilization of organic substances |
| GB1484252A (en) * | 1973-10-22 | 1977-09-01 | Rubber Res Inst Of Malaysia | Treatment of rubber |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/73 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2076828A (en) | 1981-12-09 |
| OA06773A (fr) | 1982-06-30 |
| GB2076828B (en) | 1984-02-01 |
| FR2478653B1 (OSRAM) | 1983-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |