Stable liquid biuret modified and biuret allophanate...

Details Stable liquid biuret modified and biuret allophanate... Stable liquid biuret modified and biuret allophanate...

2008-05-27

2008-05-27

Puttlitz, Karl (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

C560S335000

Reexamination Certificate

active

07378543

ABSTRACT:
This invention relates to stable liquid biuret modified toluene diisocyanates, prepolymers thereof, stable liquid biuret allophanate modified toluene diisocyanates, prepolymers thereof, and to processes for the preparation of these compositions. The stable liquid biuret modified toluene diisocyanates comprise a secondary amine based biuret modified TDI having an NCO group content of about 12 to about 46% by weight.

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