GROUP IV ELEMENT CONTAINING PRECURSORS AND DEPOSITION OF GROUP IV ELEMENT CONTAINING FILMS
申请人:L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
公开号:US20220205099A1
公开(公告)日:2022-06-30
A method for forming a Group IV transition metal containing film comprises
a) exposing a substrate to a vapor of a Group IV transition metal containing film forming composition;
b) exposing the substrate to a co-reactant; and
c) repeating the steps of a) and b) until a desired thickness of the Group IV transition metal containing film is deposited on the substrate using a vapor deposition process,
一种制备含有IV族过渡金属薄膜的方法包括以下步骤:
a) 将基板暴露在IV族过渡金属含有的薄膜形成组合物的蒸汽中;
b) 将基板暴露在共同反应物中;
c) 重复步骤a)和b),直到使用蒸汽沉积工艺在基板上沉积所需厚度的IV族过渡金属含有的薄膜。
Transition Metal Compound, Catalyst Composition and Method for Preparing Polypropylene Using the Same
申请人:LG Chem, Ltd.
公开号:US20220098225A1
公开(公告)日:2022-03-31
The present disclosure relates to a novel transition metal compound of the following Chemical Formula 1, which exhibits high hydrogen reactivity with excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a low melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same,
wherein M, X
1
, X
2
, R
1
to R
9
are described herein.