Patent ID: 11859043
Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 19:
20. The process of claim 14 wherein the yttrium-containing catalyst (viii) is an organic yttrium compound selected from the group consisting of yttrium tris(acetylacetonate), yttrium tris(hexanedionate), yttrium tris(heptanedionate), yttrium tris(dimethylheptanedionate), yttrium tris(tetramethylheptanedionate), yttrium tris(hexafluoroacetylacetonate), yttrium tris(trifluoroacetylacetonate), yttrium tris(acetoacetate), yttrium tris(ethylacetoacetate), cyclopentadienylyttrium dichloride, tris(methylcyclopentadienyl)yttrium, dicyclopentadienylyttrium dichloride, tricyclopentadienylyttrium, tris(butylcyclopentadienyl)yttrium; tris[N,N-bis(trimethylsilyl)amide]yttrium, and combinations thereof.