[EN] HETEREOCYCLIC AGENT AS CATALYTIC STABILIZING AGENT IN A HYDROFORMYLATION PROCESS<br/>[FR] AGENT HÉTÉROCYCLIQUE COMME AGENT DE STABILISATION CATALYTIQUE DANS UN PROCÉDÉ D'HYDROFORMYLATION
申请人:DOW TECHNOLOGY INVESTMENTS LLC
公开号:WO2014149915A1
公开(公告)日:2014-09-25
A heterocyclic nitrogen stabilizing agent is employed to reduce the rate of catalyst deactivation in a hydroformylation process.
在氢甲酰化过程中,使用杂环氮稳定剂来降低催化剂失活的速率。
Etchant composition
申请人:LAM RESEARCH AG
公开号:US11345852B2
公开(公告)日:2022-05-31
The present invention relates to an etchant composition, in particular to an aqueous masking layer etchant composition for use in the removal of tungsten-doped carbon masking layers from a surface of a substrate, such as a semiconductor wafer. The composition comprises (a) 10 to 40 wt. %, based on the total weight of the composition, of hydrogen peroxide; and (b) 0.1 to 2.0 wt. %, based on the total weight of the composition, of one or more corrosion inhibitors.