Samugal Mercury 60hp 2 Stroke Service Manual. If X is an aromatic group, an aromatic carboxylic acid has a higher acidity than an aliphatic carboxylic acid, has a higher ability to form salts with amines, and his a stable amine salt formed, and, therefore, it is believed to have less of an adverse effect on scorching, during mixing and low temperature processing of the rubber composition and, therefore, it is preferable. As the diene-based rubbers usable in the present invention, for example, isoprene copolymer rubber, natural rubber, butadiene rubber, styrene-butadiene copolymer rubber, chloroprene rubber, ethylene-propylene diene copolymer rubber, acrylonitrile-butadiene copolymer rubber and the like may be used. Interactive Science Ecology And. According to the present invention, the inventors found the novel compound having the above formula I and its synthesis method and found that, when this compound is used in combination with a halogen-based rubber provides a higher vulcanization efficiency and superior heat aging resistance over conventional compounding agents and provides a performance equal to or greater than in the past even without adding zinc oxide. In general, sulfur compounds are classified by the number of sulfur atoms into mono- one sulfur atomdi- two sulfur atoms and poly- three or more sulfur atoms sulfide compounds.
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Akitilar Introductory Statistics For The. The Patents Act Gov Uk. Nurse Hesi Test Study Guide. Chemistry 9th Edition Zumdahl. Amine salt compound of a carboxylic acid and rubber vulcanization compounding agent, and a rubber composition containing the same having a thermal dissociation site.
We wish you a pleasant end-of-year holiday. The smaller the value of the rate of change, the more superior the heat aging resistance exhibited. Awaken The Giant Within Arabic. The larger this value, the higher the elongation shown.
With respect to the organic group X, as specific examples of the alkylene group, for example, a methylene group, ethylene group, propylene group, butylene group, hexylene group, octylene group, etc.
Alert me in case of modifications on this product contact us. As specific examples of the diene-based rubber, natural rubber, butadiene rubber, isoprene rubber, chloroprene rubber, styrene-butadiene copolymer rubber, ethylene-propylene-diene copolymer rubber and acrylonitrile-butadiene copolymer rubber may be mentioned.
For a breaker cushion rubber composition, a jix composition and a tire ply topping. A rubber composition comprising at least one unvulcanized rubber component selected from the group consisting of diene-based rubbers and halogenated rubber and a compounding agent for rubber vulcanization according to claim 1.
The amine salt compound of a carboxylic acid group-containing disulfide of the present invention can be used in any ratio based upon the total weight of the other vulcanization accelerators so long as not obstructing his vulcanization acceleration action of the amine salt compound of a carboxylic acid group-containing disulfide and the desired vulcanization acceleration effect can be achieved.
Integrated Accounting For Windows 7e Solutions. The present invention will now be explained in further detail with reference to the Examples and Comparative Examples shown below, but the technical scope of the present invention is not limited to these Examples of course.
The amine salt compound of a carboxylic acid group-containing disulfide according to the present invention i. Adaptive Filter Theory Haykin 5th Edition. Dungeon Masters Guide 2nd. Honda Civic Service Repair Manual. Differential Equations Zill Solutions 8th.
In g of methyl ethyl ketone, The product was filtered and washed with acetone two times and dried to obtain a white powder compound A havingfollowing formula in The rubber composition of the present invention may contain, in addition to the above components, silica or another filler, a vulcanization or cross-linking agent, various types of oils, an antioxidant, a plasticizer or other various types of additives generally included for tire use and other rubber composition use.
The bonding performance of the metal belt and rubber in a pneumatic tire is, of course, important from the viewpoint of the tire being a composite material. Further, the Mooney scorch time until the Mooney viscosity rose 5 points from V m was measured. Paint and colour kis When R 1 and R 2 form heterocyclic groups, together with the nitrogen atoms with which they bond, they may further have substituent groups on their hetero rings. Electric Power Engineering Handbook Electrical.
Domestic and commercial equipment. Guide Du Routard Estonie. Die Chroniken Von Narnia Ebook. Further, Patent Documents 7 and 8 disclose using a carboxyl group-containing disulfide as a vulcanization agent for rubber, but these are both carboxylic acid-containing disulfide compounds and not salt compounds containing an amine component having the role of accelerating the vulcanization reaction. Lexus Is Manual. Employee Vacation Tracker Template Free. After the end of the reaction, the product was filtered and was washed two times with acetone and dried to obtain a white powder compound D of the following formula in The minimum value of the Mooney viscosity was made V m.
KYORITSU A PDF If X is an aromatic group, an aromatic carboxylic acid has a higher acidity than an aliphatic carboxylic acid, has a higher ability to form salts with amines, and has a stable amine his formed, and, therefore, it is believed to have less of an adverse effect on scorching, during mixing and low temperature processing of the rubber composition and, therefore, it is preferable.
In general, as a vulcanization accelerator of rubber, a thiuram-based, sulfonamide-based, mercaptobenzothiazole-based or other accelerators are used. As opposed to this, the disulfide-based vulcanization agent, dibenzothiazole disulfide, produces mercaptobenzothiazole by dissociation of the S—S bonds due to heat, but has no ability to stimulate the vulcanization by amines, and therefore, it is reported to vulcanization is slow and vulcanization accelerating capability is inferior to sulfenamides.
By using sulfenamide-based, thiuram-based or thiazole-based vulcanization accelerator, it is possible to further accelerate the vulcanization of the rubber ingredient.
Introduction To Electric Circuits 9th Edition. JIS K A method for producing an amine salt compound of a carboxylic acid group-containing disulfide having the formula I comprising: Such additives are mixed by a general method, for example, by a roll, Banbury mixer, kneader or the like to form compositions for use for vulcanization or cross-linking. The compound set forth in this patent publication, when used as a vulcanization agent or covulcanization nis of butyl rubber, gives an unvulcanized rubber exhibiting a high storage stability and a rubber obtained by vulcanization exhibiting a high thermal stability.
Net 4 Wrox Ebook. Then, the vulcanization accelerator and sulfur were mixed to this master batch by an open i to obtain the rubber composition. The formulation ingredients shown in the following Table I-1 were mixed in a 1. Neuroanatomy Primer Color To Learn. Related Posts
Faelrajas If the amount of this amine salt compound of a carboxylic acid group-containing disulfide compound I is small, the hardness becomes insufficient, and, therefore, this is not preferable, while conversely if large, the elongation at break becomes insufficient, and, therefore, this is not preferable. In the reaction formula ias specific examples of the carboxylic acid group-containing disulfide compound II used as the starting materials, for example, dithiodiglycolic acid, dithiodipropionic acid, dithiosalicylic acid, dithiobis 2-nitrobenzoic acidetc. As examples of such organic groups, for example, a methoxypropyl group, methoxyethyl group, tetrahydrofurfuryl group, etc. On the other hand, as specific examples of the amines having by the above formula IIIfor example, methylamine, ethylamine, propylamine, butylamine, hexylamine, isobutylamine, tert-butylamine, dimethylamine, diethylamine, dipropylamine, diisopropylamine, cyclopropylamine, cyclobutylamine, cyclohexylamine, N-methylcyclohexylamine, N-ethylcyclohexylamine, dicyclohexylamine, 2-methylcyclohexylamine, exoaminonorbornane, 2-methoxyethylamine, bis 2-methoxyethyl amine, tetrafurfurylamine, morpholine, thiomorpholine, 1-methylpiperadine, 2-methylimidazole, piperadine, trimethylamine, triethylamine, tripropylamine, etc. When R 1 and R 2 form heterocyclic groups, together with the nitrogen atoms with which they bond, they may further have substituent groups on their hetero rings.
JIS K 6257 PDF
Kajim The vulcanization accelerator and sulfur were mixed with this master batch by open rolls to obtain a rubber composition. Audio and video engineering As opposed to this, Patent Document 9 discloses a method for producing particularly pure polythiopolycarboxylic acid which enables the production of a compound containing a relatively high content of bonded sulfur. In accordance with the present invention, there is provided jjs compounding agent for rubber vulcanization comprising an amine salt compound of a carboxylic acid group-containing disulfide having by the formula Iwherein, in the above formula Ithe amine component is a primary mis secondary amine. Natural rubber RSS 3. With respect to the organic group X, as specific examples of the alkylene group, for example, a methylene group, ethylene i, propylene group, butylene group, hexylene group, octylene group, etc. Brand Identity Manual Suzuki.
JIS K 6257
As specific examples of the vulcanization agent usable in the compounding agent for rubber vulcanization according to the present invention, for example, sulfur, organic peroxide, quinone dioxime, metal oxides, alkylphenol formaldehyde resins, etc. Bbc English Class 12 Literary Companion. Electrotechnics N4 Past Exam Papers. Glass and ceramics industries As a measure against this, the introduction of cobalt Co salts and changes in the vulcanization accelerator to make the bonding reaction better have been attempted see Non-Patent Document 2but this has the problem of a deterioration jos the heat buildup property. Love And Other Unknown Variables. Vw Polo Manual. Chinese In 10 Minutes.