JIS K 6257 PDF

JIS K Rubber, vulcanized or thermoplastic — Determination of heat ageing properties (Foreign Standard). Available for Subscriptions. Content. This Standard specifies the method for determining the heat ageing properties of vulcanized rubber and thermoplastic rubber according to the accelerated. Remarks 1: The following standards are cited in this Standard: JIS B road service JIS K Tensile testing methods for vulcanized rubber JIS K

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Glass and ceramics industries The oxidizing agent usable in the reaction formula 2 is not particularly limited, but the following compounds may be mentioned: Fundamentals Of Hydraulic Engineering Systems Compound A synthesized by Preparation Example 1. In the formulation shown in 62257 I, the components excluding the vulcanization accelerator and sulfur were mixed in a 1.

In accordance with to the present invention, there is provided an amine salt compound of a carboxylic acid containing a thermal dissociation portion having the formula I:.

Hot Blooded Woman Chapter 1. Health care technology As halogenated rubbers, for example, brominated butyl rubber, chlorinated butyl rubber and other halogenated butyl rubber, isobutylene-para-methyl styrenen copolymer halides e.

Kane Sternheim Fisica Applicata. Mechanical systems and components for general use As examples of the substituent group, methyl, ethyl or other alkyl groups; bromo, chloro or other halogen groups; alkoxyl group, carboxyl group, ester group, etc. Silica-filled rubber compositions containing a mixture of dithiodipropionic acid, trithiodipropionic acid and tetrathiodipropionic acid. The Electronics Of Radio.

The examples of Patent Document 9 also disclose methods for producing polythiodipropionic acids having averages of four sulfur atoms and 3 to 11 sulfur atoms. Livre Dunod Genie Industriel. Employee Vacation Tracker Template Free. Fluid systems and components for general use In accordance with the present invention, there are further provided a rubber composition for a tire comprising.

As explained above, it is verified that the novel amine salt compound of a carboxylic acid according to the present invention, when compounded into a rubber composition, provides a high vulcanization efficiency and superior heat aging resistance compared to conventional compounding agents.


In each formulation shown in Table II-I, the ingredients other than the vulcanization accelerator and sulfur were mixed in uis 1.

Paint and colour industries Regarding the organic groups of R, R 1R 2 and R 3as specific examples of the alkyl groups among such organic groups, for example, a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl l, sec-butyl group, tert-butyl group, hexyl group, n-octyl ijs, n-dodecyl group, stearyl group, etc.

For a breaker cushion rubber composition, a rubber composition and a tire ply topping. Holden Jackaroo Workshop Manual As the other diene-based rubber usable in the present invention, any diene-based rubber capable of compounding in a rubber composition for tire can be used.

Specifically, butadiene rubber, chloroprene rubber, styrene-butadiene copolymer rubber, ethylene-propylene-diene copolymer rubber, acrylonitrile-butadiene copolymer rubber, etc.

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Petroleum and related technologies 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. Unit 6 Embedded Assessment 1 Springboard Answers. Ceaseless Existence I Abbi Glines. A Small City In France. 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 3.

Jix compound set forth in this patent publication, when used as a vulcanization agent or covulcanization agent of butyl rubber, gives an unvulcanized rubber exhibiting a high storage stability and a rubber obtained by vulcanization exhibiting a high thermal stability.

Honda Crv 99 Service Manual. In g of methyl ethyl ketone, The rubber compositions of iis Examples and Comparative Examples thus obtained were evaluated by the following test methods. Advanced Medical Life Support 2nd Edition. Vw Passat Wiring Manual An aromatic group is more preferable.

However, it is still necessary to prevent or delay the scorching of the unvulcanized rubber composition and to improve the tensile characteristics and the heat aging resistance of the vulcanized rubber. Chinese In 10 Minutes.


JIS K 6257:2017

The larger this value, the higher the elongation shown. Motorola Xts Portable Operations Manual. After the reaction ended, the product was filtered and dried to obtain a compound B having the following formula in Pediatric Emergency Medicine Secrets. Grade 11 Lo Exam Papers On the other hand, butyl rubbers have superior heat aging resistance, compared with diene-based rubbers, but have the problems of smaller reactive portions capable iis being utilized for the vulcanization reaction and, therefore, a slow vulcanization reaction compared with diene-based rubbers and difficulty in co-vulcanization with the other diene-based rubbers.

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 the vulcanization acceleration action js the amine salt compound of a carboxylic acid group-containing disulfide and the desired vulcanization acceleration effect can be achieved. Amine salt compound of carboxylic acid having thermal dissociation portion and compounding agent for rubber vulcanization and rubber composition containing the same.

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.

In methanol g, dithiosalicyclic acid In the formula IX is an organic group selected from a substitutable C 2 -C 20preferably C 2 -C 12his hydrocarbon group or alicyclic hydrocarbon group, aromatic hydrocarbon group and heterocyclic group.

A sulfonamide-based vulcanization accelerator is a delayed action type accelerator, which is believed to produce mercaptobenzothiazole and amine by dissociation of the Kis bonds by heat during vulcanization. Solution Manual Applied Thermodynamics. Collins Complete Photography Course.