反应详情

温度

100 °C

A mixture of 40 parts of xylene and 40 parts of n-butanol was heated to 100° C. in the same flask as used in Production Example 1. To this was added dropwise a mixture of 65.7 parts of ethyl acrylate, 15 parts of cyclohexyl methacrylate, 19.3 parts of acrylic acid and 2 parts of t-butylperoxy 2-ethylhexanoate at a constant rate over 3 hours. After the addition, the mixture was kept at the same temperature for 30 minutes. Then a solution of 0.2 parts of t-butylperoxy 2-ethylhexanoate in 10 parts of xylene and 10 parts of n-butanol was added dropwise at a constant rate over 30 minutes. Thereafter the reaction mixture was kept at the same temperature for 1.5 hours. A resin solution called Varnish C having 50.0% solids, a viscosity of 6.5 poise and a resin acid number of 150 was obtained.

1. additionTo this was added dropwise
2. additionAfter the addition
3. waitThereafter the reaction mixture was kept at the same temperature for 1.5 hours