Method of making mixed aliphatic/aromatic polycarbodiimides

Details Method of making mixed aliphatic/aromatic polycarbodiimides Method of making mixed aliphatic/aromatic polycarbodiimides

1983-02-24

1984-12-11

Trousof, Natalie

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

Organic compounds

Amino nitrogen containing

C07C119055

Patent

active

044879644

ABSTRACT:
Mixed aliphatic/aromatic polycarbodiimides can be prepared by first heating aliphatic mono- and diisocyanates with a phospholene oxide catalyst and then feeding the aromatic mono and/or diisocyanates in an inert solvent to the reaction mixture, thus preparing cross-linking agents for carboxylated latexes used in making roofing materials, hardboard, pressure sensitive adhesives and the like.

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patent: 3193524 (1965-07-01), Neumann et al.
patent: 3296190 (1967-01-01), Reischl et al.
patent: 3639353 (1972-02-01), Brown et al.
patent: 3929733 (1975-12-01), Alberind et al.
patent: 4042558 (1977-08-01), Bonin et al.
patent: 4148844 (1979-04-01), Bonin et al.

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