GB2239870A - A vulcanisable rubber composition - Google Patents
A vulcanisable rubber composition Download PDFInfo
- Publication number
- GB2239870A GB2239870A GB9026525A GB9026525A GB2239870A GB 2239870 A GB2239870 A GB 2239870A GB 9026525 A GB9026525 A GB 9026525A GB 9026525 A GB9026525 A GB 9026525A GB 2239870 A GB2239870 A GB 2239870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber mixture
- mixture composition
- vulcanisable
- vulcanisable rubber
- liquid
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 229920001971 elastomer Polymers 0.000 title claims abstract description 24
- 239000005060 rubber Substances 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000004014 plasticizer Substances 0.000 claims abstract description 10
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims abstract description 7
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004614 Process Aid Substances 0.000 claims abstract description 6
- 239000013536 elastomeric material Substances 0.000 claims abstract description 6
- 150000002148 esters Chemical class 0.000 claims abstract description 6
- 229920001195 polyisoprene Polymers 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract description 5
- 239000010690 paraffinic oil Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 5
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- 239000002174 Styrene-butadiene Substances 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 239000011115 styrene butadiene Substances 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 238000002845 discoloration Methods 0.000 abstract description 3
- 239000010692 aromatic oil Substances 0.000 description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 for example Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- ZUBNXRHITOZMOO-UHFFFAOYSA-N zinc;octadecanoic acid;oxygen(2-) Chemical compound [O-2].[Zn+2].CCCCCCCCCCCCCCCCCC(O)=O ZUBNXRHITOZMOO-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
- C08K5/01—Hydrocarbons
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to vulcanisable rubber compositions, which are formed from elastomeric material, filler substances and plasticiser process aids and contain vulcanising agents, the plasticisers being esters (such as dioctyl phthalate) and/or naphthenic or paraffinic oils and being used in combination with liquid polymeric material (such as liquid polyisoprene) and/or asphaltenes. The vulcanisates produced therefrom do not cause discoloration and are environmentally friendly in respect of the plasticisers used.
Description
- 1 A VULCANISABLE RUBBER MIXTURE COMPOSITION The invention relates to
vulcanisable rubber mixture compositions, which contain elastomeric material, filler substances, process aids and vulcanising agents.
It is known to stretch the elastomeric materials contained in the rubber mixture composition, such as, for example, natural rubber, synthetic polyisoprene, solution- or emulsion-styrene-butadiene, polybutadiene or their mixtures, by using plasticisers as process aids.
For this purpose, commercially available products are preferably used in the form of a selective extract from petroleum refining of an aromatic nature; c.f. DEA-1079316.
These so-called aromatic oils improve the plasticity of the rubber mixture composition and, in this respect, the processability of the highly viscous mixture ingredients. They reduce the hardness, the modulus and the elasticity of the vulcanisates.
Because of the aromatic oil, the vulcanisate has the disadvantageous property that, upon contact with other objects or, for example, floor surfaces, it stains such. To a greater or lesser extent. brown to black points of contact are formed on these surfaces, as can be observed with stored tyres, conveyor belts and similar objects. These dirty points of contact are difficult to remove or cannot be removed, and, in this respect. the dirty, oily location constitutes environmental pollution.
An object of the invention is to produce nondiscolouring vulcanisates, the physical properties of which are not detrimentally affected by the plasticisers used if such vulcanisates are used as tyres, conveyor belts., or the like.. The object of the invention is to replace the aromatic oil totally with other suitable process aids, which are compatible with any selected elastomeric materials, and which influence their processability in the sense of stretching in just as satisfactory a manner as do the aromatic oils hitherto used, without their having the disadvantage of environmental pollution.
A vulcanisable rubber mixture composition, which contains elastomeric material, such as, for example, natural rubber or synthetic polyisoprene, solution- or emulsion-styrene-butadiene or polybutadiene or their mixtures, and also contains filler substances, more especially active carbon black, as well as containing process aids and effective quantities of vulcanising agents. contains, according to the invention, the plasticiser in the form of an ester andlor in the form of a naphthenic 9r paraffinic oil, and liquid polymeric material, more especially selected from the polyisoprene group, up to 50 parts relative to 100 parts rubber.
Vulcanisates formed from such a rubber mixture do not have the disadvantage of prior art and, in particular, they do not cause discoloration.
Both the esters and the naphthenic and paraffinic oils and the liquid polyisoprenes are compatible with the main rubber component. which may be natural rubber or another of the above-described elastomeric 4 1 materials. and they cause the elastomeric material used at any time to be stretched satisfactorily.
The advantageous combination effect in the employment of said plasticiser and the liquid rubber component may also be achieved by using asphaltenes. Asphaltenes are environmentally friendly additives and may be mixed into the rubber mixture composition together with the liquid isoprene or instead of liquid isoprene and, together with the plasticisers used which are based on esters, such as, for example, dioctyl phthalate or naphthenic or paraffinic oil, asphaltenes produce satisfactorily stretched rubber mixtures which, in vulcanisate form, do not cause discoloration and are environmentally friendly and, on average, they provide comparable physical data as when aromatic oils are used.
This is explained more fully with reference to examples of S-vulcanisable blended rubber mixtures, which are used as vulcanisates in pneumatic vehicle tyres.
The rubber mixture A is formed from pphr Emulsion-styrene-butadiene rubber Liquid polyisoprene HAF carbon black Dioctyl phthalate (DOP) 2.5 Zinc oxide 1.0 Stearic acid 1.5 Anti-oxidant 1.0 Wax/paraffin 5.0 Resin.
0.3 DPG 0.1 91 ZBEC - 4 0.6 is CBS 1,8 11 Sulphur The physical properties of this vulcanisate are as follows after heating at 1700 C for 10 minutes:
Hardness (R.T.) Modulus 300% Breaking tension Tensile strength Rebound elasticity DIN wear 63 Shore A 10 M Pa 400% 14 M Pa (R.T) 23% 2 72 mm The rubber mixture B is formed from 10 75 20 5 2.5 1.0 1.5 1.0 0.3 1.3 1.9 pph v? 11 11 U of n 91 It to n $v Emulsion-styrene-butadiene rubber Liquid polyisoprene HAF carbon black Dioctyl phthalate (DOP) Asphaltenes Zinc oxide Stearic acid Anti-oxidant Wax/paraffin DPG CBS Sulphur - The physical properties of this vulcanisate are as follows after heating at 1700 C for 10 minutes:
Hardness (R.T.) Modulus 300% Breaking tension Tensile strength Rebound elasticity (R.T.) DIN wear 64 Shore A 11.5 M Pa 400% 14 M Pa 23% 95 mm2 (R.T.
Claims (6)
1. A vulcanisable rubber mixture comprising: an elastomeric material. one or more filler substances; one or more process aids in plasticisers; and one or more vulcanising agents; wherein the plasticiser is in the form of an ester andlor a naphthenic or paraffinic oil, and the rubber mixture composition additionally contains a liquid polymeric material andlor one or more asphaltenes present in 1 to 50 parts per 100 parts rubber.
composition, the form of
2. A vulcanisable rubber mixture composition as claimed in claim 1, wherein the elastomeric material is selected from natural rubber and/or synthetic polyisoprene and/or solution- or emulsion-styrenebutadiene and/or polybutadiene.
3. A vulcanisable rubber mixture composition as claimed in claim 1 or 2. wherein the filler substance Is active carbon black.
4. A vulcanisable rubber mixture composition as claimed in any preceding claim, wherein the liquid polymeric material is a liquid polyisoprene.
5. A vulcanisable rubber mixture composition as claimed in any preceding claim. wherein the ester is dioctyl phthalate.
1 i i 1 1 i - 7
6. A vulcanisable rubber mixture composition as claimed in any preceding claim, substantially as hereinbefore described and exemplified.
Published 1991 atIbe Patent OMee. State House. 66/71 High Holloom, London WCIR 477. Further copies may be obtained from Sales Branch. Unit 6, Nine Mile Point_ Cwmfehnfacb. Cross Keys. Newport NPI 7HZ. Printed by Multiplex techniques lid. St Mary Cray. Kent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3941246A DE3941246A1 (en) | 1989-12-14 | 1989-12-14 | Vulcanizable rubber compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9026525D0 GB9026525D0 (en) | 1991-01-23 |
| GB2239870A true GB2239870A (en) | 1991-07-17 |
Family
ID=6395430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9026525A Withdrawn GB2239870A (en) | 1989-12-14 | 1990-12-06 | A vulcanisable rubber composition |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3941246A1 (en) |
| FR (1) | FR2655992A1 (en) |
| GB (1) | GB2239870A (en) |
| IT (1) | IT1246495B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0708137A1 (en) * | 1994-10-21 | 1996-04-24 | Uniroyal Englebert Reifen GmbH | Vulcanizable rubber composition and tire prepared therefrom |
| US6822043B2 (en) | 2000-07-24 | 2004-11-23 | Continental Aktiengesellschaft | Rubber composition |
| EP1561780A1 (en) * | 2002-11-15 | 2005-08-10 | Bridgestone Corporation | Rubber composition for tread and tire |
| US6955199B1 (en) * | 2000-12-21 | 2005-10-18 | Fbt Enterprises, Inc. | Tire with non-marking tread |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5998513A (en) * | 1998-02-23 | 1999-12-07 | Bridgestone Corporation | Rubber composition containing an asphaltene-containing softening agent |
| FR2916201B1 (en) * | 2007-05-15 | 2009-07-17 | Michelin Soc Tech | PLASTICATING SYSTEM AND RUBBER COMPOSITION FOR PNEUMATIC INCORPORATING SAID SYSTEM |
| DE102007057793A1 (en) | 2007-11-30 | 2009-06-04 | Continental Aktiengesellschaft | Rubber compound and tires |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701343A (en) * | 1951-01-18 | 1953-12-23 | Us Rubber Co | Improvements in vulcanization of rubbery butadiene-styrene copolymers |
| EP0002154A1 (en) * | 1977-11-17 | 1979-05-30 | COMPAGNIE FRANCAISE DE RAFFINAGE Société anonyme dite: | Elastomer compositions and their vulcanisation in a high-frequency field |
| JPS57207628A (en) * | 1981-06-16 | 1982-12-20 | Naigai Gomme Kk | Rubber composition for hollow ball |
| JPS60206854A (en) * | 1984-03-30 | 1985-10-18 | Yokohama Rubber Co Ltd:The | Flame-retardant rubber composition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3247881A (en) * | 1961-04-20 | 1966-04-26 | Us Rubber Co | Pneumatic tire tread containing a synthetic rubber, asphalt, and filler |
| NL124027C (en) * | 1963-02-20 | |||
| JPS57120426A (en) * | 1981-01-20 | 1982-07-27 | Hayakawa Rubber Co Ltd | Unvulcanized rubber plate for successive pour |
| JPS63202636A (en) * | 1987-02-17 | 1988-08-22 | Toyo Tire & Rubber Co Ltd | Rubber composition for tire tread |
-
1989
- 1989-12-14 DE DE3941246A patent/DE3941246A1/en not_active Withdrawn
-
1990
- 1990-12-04 IT IT02228090A patent/IT1246495B/en active IP Right Grant
- 1990-12-06 GB GB9026525A patent/GB2239870A/en not_active Withdrawn
- 1990-12-12 FR FR9015573A patent/FR2655992A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701343A (en) * | 1951-01-18 | 1953-12-23 | Us Rubber Co | Improvements in vulcanization of rubbery butadiene-styrene copolymers |
| EP0002154A1 (en) * | 1977-11-17 | 1979-05-30 | COMPAGNIE FRANCAISE DE RAFFINAGE Société anonyme dite: | Elastomer compositions and their vulcanisation in a high-frequency field |
| JPS57207628A (en) * | 1981-06-16 | 1982-12-20 | Naigai Gomme Kk | Rubber composition for hollow ball |
| JPS60206854A (en) * | 1984-03-30 | 1985-10-18 | Yokohama Rubber Co Ltd:The | Flame-retardant rubber composition |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0708137A1 (en) * | 1994-10-21 | 1996-04-24 | Uniroyal Englebert Reifen GmbH | Vulcanizable rubber composition and tire prepared therefrom |
| DE4437645A1 (en) * | 1994-10-21 | 1996-04-25 | Uniroyal Englebert Gmbh | Vulcanizable rubber compound and tires based on the same |
| DE4437645C2 (en) * | 1994-10-21 | 2000-05-31 | Uniroyal Englebert Gmbh | Tire comprising a tire tread made from a vulcanized rubber compound |
| US6822043B2 (en) | 2000-07-24 | 2004-11-23 | Continental Aktiengesellschaft | Rubber composition |
| US6955199B1 (en) * | 2000-12-21 | 2005-10-18 | Fbt Enterprises, Inc. | Tire with non-marking tread |
| EP1561780A1 (en) * | 2002-11-15 | 2005-08-10 | Bridgestone Corporation | Rubber composition for tread and tire |
| EP1561780A4 (en) * | 2002-11-15 | 2007-05-30 | Bridgestone Corp | Rubber composition for tread and tire |
| US7709561B2 (en) | 2002-11-15 | 2010-05-04 | Bridgestone Corporation | Rubber composition for tread and tire |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9026525D0 (en) | 1991-01-23 |
| FR2655992A1 (en) | 1991-06-21 |
| IT9022280A0 (en) | 1990-12-04 |
| IT1246495B (en) | 1994-11-19 |
| DE3941246A1 (en) | 1991-06-20 |
| IT9022280A1 (en) | 1991-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |