4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Heterocyclic carbon compounds containing a hetero ring...

Jürgen Köcher

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Catalysts for selective isocyanate dimerization

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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Catalysts for selective isocyanate dimerization

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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Isocyanates containing uretdione groups

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

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Method for producing polyisocyanates

Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Reexamination Certificate

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Method of dimerizing isophorone diisocyanate

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

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