Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Reexamination Certificate
2006-12-19
2006-12-19
Gorr, Rachel (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
C528S073000, C540S202000
Reexamination Certificate
active
07151151
ABSTRACT:
A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.
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J. Prakt Chem., 336, (month unavailable) 1994, pp. 185-200, Hans Josef Laas et al, Zur Synthese aliphatischer Polyisocyanate-Lackpolyisocyanate mit Biuret-, Isocyanurat- oder Uretdionstruktur.
Halpaap Reinhard
Hecking Andreas
Laas Hans-Josef
Richter Frank
Bayer MaterialScience AG
Brown N. Denise
Gorr Rachel
Whalen Lyndanne M.
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