Alkenylated toluenediamines for use in preparing polyurethane/ur

Details Alkenylated toluenediamines for use in preparing polyurethane/ur Alkenylated toluenediamines for use in preparing polyurethane/ur

1986-03-07

1987-12-22

Warren, Charles F.

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

Organic compounds

Amino nitrogen containing

564307, 564315, 564322, 564442, 564443, 528 64, 528 68, C07C 8758

Patent

active

047147784

ABSTRACT:
This invention relates to a class of alkenylated toluenediamines having at least one alkenyl group ortho to an amine group. More particularly the toluenediamines are represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen, C.sub.1-3 aliphatic, phenyl, halogen or alkoxy radicals, or R.sub.2 and R.sub.4 or R.sub.5 are bridged via an alkylene radical --(CH.sub.2).sub.y -- wherein y=2 to 5, and x is one or two provided that in said formula at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4 or R.sub.5 is C.sub.1 or greater.
The above described alkenylated toluenediamines have been found to be well suited as antioxidants and as tri- and tetra functional chain extenders in forming polyurethane/urea elastomers systems and for providing pendant unsaturation for post curing and polymerization.

REFERENCES:
patent: 2403963 (1946-07-01), Axe
patent: 2471922 (1949-05-01), Axe
patent: 2843565 (1958-07-01), Christenson et al.
patent: 3428610 (1969-02-01), Klebert
patent: 3865889 (1975-02-01), Mitchell
patent: 4218543 (1980-08-01), Weber et al.
patent: 4440952 (1984-04-01), Ihrman
patent: 4529746 (1985-07-01), Markovs

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