The content of protein in tea is 15-30%, most of which is water insoluble but alkalisoluble.
茶叶中含有15%-30%的蛋白质，其中大部分不溶于水，易溶于碱。
2
The radiation sensitive linear resin composition comprises (A)alkalisoluble resin, (B) 1,2-quinone-bi-azide compound and (C) special polymer with siloxane chain.
Water dispersion of a partly alkalisoluble pure acrylic copolymer specifically developed to formulate clear or pigmented stain and bleeding resistant primers and sealers.