Rubber composition comprising a blocked mercaptosilane coupling agent
A technology of rubber composition and mercaptosilane, applied in the directions of transportation and packaging, special tires, tire parts, etc., can solve the problems of reducing the processing characteristics of the rubber composition and reducing the coking time, etc.
Inactive Publication Date: 2015-02-04
MICHELIN & CO CIE GEN DES ESTAB MICHELIN +1
View PDF30 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, it was found that the removal of zinc oxide, especially in rubber compositions reinforced with inorganic fillers such as silica, greatly reduces the processing characteristics of the rubber composition in the raw state, from an industrial point of view, the reduction of scorch time is unacceptable
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0124] III. Exemplary Embodiments of the Invention
[0125] III-1 Synthesis of S-octanoylmercaptopropylethoxydimethylsilane, CAS number [1024594-66-8]
[0126]
[0127] The synthesis of this compound is described in Example 10 of patent application FR 2 908 410 (WO 2008 / 055986 A2). No indication of purification was given for the procedure (the authors describe a yellow oil, whereas the 99.5% pure product was colorless). It is possible to make products using processes starting directly from chlorosilanes rather than alkoxysilanes, as described in previous patent applications. The final product can be isolated with a molar purity of 99.5%.
[0128] Overall plan:
[0129]
[0130] a) Synthesis of S-(acetyl)mercaptopropylethoxydimethylsilane C, CAS number [1024594-63-5]
[0131]
[0132] To allyldimethylchlorosilane A, CAS No. [4028-23-3] (45.1 g, 0.335 mol) was added thioacetic acid (25.5 g, 0.335 mol) under argon atmosphere at ambient temperature. The reaction is e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a rubber composition that is free of zinc or that contains less than 0.5 phr of zinc, which can be used for the manufacture of tyres, based on at least: one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one blocked mercaptosilane of general formula I below: (R3O)R2R1—Si—Z—S—C(═O)-A in which: R1 and R2, which are identical or different, represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; R3 represents a monovalent hydrocarbon-based group chosen from linear or branched alkyls having from 1 to 4 carbon atoms; A represents hydrogen or a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms.
Description
[0001] This application is a divisional application of the Chinese patent application with the application number 200980156366.5, the application date is December 18, 2009, and the invention title is "Rubber Composition Containing Blocked Mercaptosilane Coupling Agent". technical field [0002] The present invention relates to diene rubber compositions reinforced with inorganic fillers such as silica, which can be used in particular for the manufacture of tyres, or for the manufacture of semi-finished products for tyres, such as treads. Background technique [0003] Vulcanization of diene elastomers by sulfur is widely used in the rubber industry, especially the tire industry. For the vulcanization of diene elastomers, relatively complex vulcanization systems are used which, in addition to sulfur, include various vulcanization accelerators, and one or more vulcanization activators, especially zinc derivatives such as zinc oxide (ZnO ) or zinc salts of fatty acids such as zin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K5/548C08K3/36B60C1/00
CPCC08K5/548C08K3/0033B60C1/0016C08L9/06C08L2205/02C08L2205/035C08L9/00C08L91/00C08L91/06C08K13/02C08K3/36C08K3/04C08K3/013Y10T152/10819C08L21/00
Inventor L·别林K·隆尚邦J·C·阿劳若达席尔瓦
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN