Invention Grant
US08741995B2 Surface-treated calcium carbonate and paste-like resin composition containing same 有权
表面处理的碳酸钙和含有它们的糊状树脂组合物

Surface-treated calcium carbonate and paste-like resin composition containing same
Abstract:
A calcium carbonate having a surface treated with a surface treating agent containing a sodium salt or a potassium salt of a fatty acid, the surface treating agent containing a sodium salt or a potassium salt of palmitic acid in an amount of PW in terms of acid, the surface treating agent containing a sodium salt or a potassium salt of stearic acid in an amount of SW in terms of acid, a total amount of PW and SW being PW+SW≧90, a ratio of PW to SW being 0.30≦PW/SW≦1.1, the surface-treated calcium carbonate having a BET specific surface area of SA2 of 15≦SA2≦48, and the sodium salt or the potassium salt of the fatty acid being used for the treatment in an amount of FA and a ratio (FA/SA2) being 0.095≦FA/SA2≦0.135.
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