发明授权
US4425226A Polymerization catalyst and deodorizing agent 失效
聚合催化剂和除臭剂

Polymerization catalyst and deodorizing agent
摘要:
Calcium silicate treated with an acid can be used as a polymerization catalyst or as a deodorizing agent. The acid is sulfuric acid, phosphoric acid or nitric acid.
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