Patent ID: 7776232
Filing Date: 2010-08-17
Classification: C01P,C08K,C09C,Y10T

Abstract:
1. A powdery white vulcanization promoter composition comprising; a modified calcium carbonate (A) surface-treated with a fatty acid and a silicic acid or with a resin acid and a silicic acid; a highly oil-absorbing inorganic filler (B) exhibiting an oil absorption of 50 to 300 mL/100 g; and a vulcanization promoter (C) which is in a liquid form at ordinary temperature; wherein the mixing ratio by weight of the modified carbon calcium (A) to the inorganic filter (B) (the ratio of (A):(B)) is within a range of from 30:70 to 95:5, and the content by percentage of the vulcanization promoter (C) is from 30 to 80% by weight based on the total of the composition.