Catalysts for preparing polyisocyanates containing...

Details Catalysts for preparing polyisocyanates containing... Catalysts for preparing polyisocyanates containing...

2005-04-05

2005-04-05

Sergent, Rabon (Department: 1711)

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

With coating, sizing, or lubricating

C008S190000, C428S423100, C428S423400, C428S425100, C502S158000, C502S162000, C502S164000, C528S051000, C528S052000, C528S053000, C528S073000, C544S193000, C544S222000, C556S410000, C556S411000

Reexamination Certificate

active

06875243

ABSTRACT:
Catalysts and processes for preparing polyisocyanates containing isocyanurate groups, and their use, wherein the catalysts are represented by the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?[Hl⊕Xm⊕Fn⊖]p·[R(4−q)Si(NR1R2)q]r  (I),in-line-formulae description="In-line Formulae" end="tail"?whereinn=m+l with 1≧m
>0, and l≧0,p>0 and r>0, and the ratio p/r is any value,q=1 or 2, andR, R1, R2and X are as defined.

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