A kind of preparation method of c5/c10 copolymer resin
A technology of copolymer resin and distillate, which is applied in the field of preparation of C5/C10 copolymer resin, can solve the problems of indene resin preparation process and low intrinsic viscosity not introduced in detail, achieve excellent adhesive performance and compatibility, simple process, wide Promoting the effect of app prospects
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Embodiment 1-6
[0042] Effects of different raw material ratios on the properties of copolymer resin
[0043]
[0044] The default C10 raw material has been rectified by step (1) to cut off components with a boiling point of 140-210°C.
[0045] The reaction conditions are as follows: add 55wt% n-hexane solvent in advance to the reaction kettle, slowly add 0.5wt% boron trifluoride diethyl ether catalyst dropwise, and at the same time slowly add the above mixed polymerization raw materials. Then react at 10° C. for 2.5 hours to obtain a reddish-brown polymerization solution. The above polymerization liquid is washed with 5wt% NaOH aqueous solution at a temperature of 70°C to remove the catalyst, and then washed with water to neutrality to obtain a light yellow resin liquid; The solvent and oligomers are removed by distillation to obtain the copolymer resin.
Embodiment 7
[0047] 70wt% of C10 fraction A, 20wt% of C5 raw material 1 and 10wt% of C5 raw material 2 were mixed to obtain polymerization raw material B. Add toluene solvent accounting for 60wt% of the total material in advance in the high-pressure reactor with stirring, then slowly add the polymerization raw material B, and simultaneously add gaseous boron trifluoride catalyst accounting for 0.3wt% of the total material mass, and react at 10°C for 3 hours , to obtain a reddish-brown polymer solution. The above polymerization liquid is washed with 5wt% NaOH aqueous solution at a temperature of 70°C to remove the catalyst, and then washed with water to neutrality to obtain a light yellow resin liquid; The solvent and oligomers were removed by distillation to obtain a C5 / C10 copolymerized petroleum resin with a softening point of 105°C and a Gardner color number of 3.5#.
Embodiment 8
[0049]30wt% of C10 fraction A, 40wt% of C5 raw material 1 and 30wt% of C5 raw material 4 were mixed to obtain polymerization raw material B. In the autoclave with agitation, add in advance the n-pentane solvent accounting for 50wt% of the total material, then slowly add the polymerization raw material B, and add the anhydrous aluminum chloride catalyst accounting for 1.0wt% of the total material mass at the same time, at 50 ° C After reacting for 2.5 hours, a reddish-brown polymer solution was obtained. The above polymerization liquid is washed with 5wt% NaOH aqueous solution at a temperature of 90°C to remove the catalyst, and then washed to neutrality with water to obtain a light yellow resin liquid; The solvent and oligomers were removed by distillation to obtain a C5 / C10 copolymerized petroleum resin with a softening point of 101° C. and a Gardner color number of 5#.
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