反应详情

温度

90 °C

A mixture of 50 parts of xylene and 50 parts of n-butanol was heated to 90° C. in the same flask as used in Production Example 1. To this was added dropwise a mixture of 54.6 parts of ethyl acrylate, 7.4 parts of methyl methacrylate, 16.7 parts of acrylic acid, 21.3 parts of t-butyl methacrylate and 2 parts of azobisisobutyronitrile at a constant rate over 3 hours. After the addition, the mixture was kept at the same temperature for 2 hours. A resin solution called Varnish B having 50.1% solids, a viscosity of 5.2 poise and a resin acid number of 130 was obtained.

1. additionTo this was added dropwise
2. additionAfter the addition