Reaction product and rubber composition
A technology of rubber composition and reaction product, applied in transportation and packaging, pneumatic tires, special tires, etc., can solve the problems of decreased wear resistance, insufficient, low heat build-up, etc., to reduce heat build-up and improve Wear resistance and rolling resistance reduction effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
manufacture example 1
[0234] Production Example 1: Production of 3,6-bis(3-pyridyl)-1,2,4,5-tetrazine (1b)
[0235] 24 g (0.23 mol) of 3-cyanopyridine, 15 g (1.3 equivalents) of hydrazine hydrate, and 48 mL of methanol were added to the 200 mL four-necked flask, and it stirred at room temperature. Next, 3.6 g (15% by weight) of sulfur was added to the mixture, a reflux tube was attached, and the mixture was heated and stirred overnight at an external temperature of 70°C. The reaction solution was cooled with ice, and the crystals were filtered and washed with a small amount of cold methanol. The crude crystals were dried under reduced pressure to obtain 19 g of orange crude crystals of dihydrotetrazine.
[0236] 17.8 g of the obtained crude crystals were dissolved in 178 g (40 equivalents) of acetic acid, and sulfur was removed by filtration. A dihydrotetrazineacetic acid solution and 178 mL of distilled water were added to a 1 L four-necked eggplant-shaped flask, and stirred under ice cooling....
Embodiment 1
[0241]100 parts by mass of solution polymerization SBR (manufactured by Asahi Kasei Chemicals Corporation, trade name Tafdene3835) and 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine (Tokyo Kasei Kogyo Co., Ltd. compound (1b)) 5 mass parts were mixed. When the temperature of the mixture reached 130 to 150° C., the mixture was mixed for about 2 minutes while adjusting to maintain the temperature, and then cooled with a roll mill to produce a reaction product.
[0242] The mixture at the initial stage of mixing was bright red to purple, but the color disappeared as the mixing progressed.
[0243] Tetrazine compound (1b), solution-polymerized SBR (S-SBR), and the obtained reaction product were extracted with THF, the organic layer was concentrated, and the obtained residue (modified S-SBR) was dissolved in CDCl 3 in, measure 13 C-NMR. The measurement result of tetrazine compound (1b) is shown in figure 1 , the measurement results of S-SBR are shown in figure 2 and image 3 , the meas...
Embodiment 2～5
[0245] Using a Banbury mixer, while adjusting the rotational speed so that the maximum temperature of the mixture becomes 150° C., each component described in the following Table 1 was mixed according to the ratio (parts by mass) for 5 minutes to obtain the target reaction product.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More