Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Patent
1987-10-14
1989-07-04
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Isocyanate esters
521163, C07C11800, C08G 1800
Patent
active
048452831
ABSTRACT:
This invention relates to alkenylated diphenyldiisocyanates having at least one alkenyl group ortho to an isocyanate group. More particularly the diphenyldiisocyanates 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 provided not more than one is phenyl, halogen, or alkoxy, X is methylene, alkylene, or branched C.sub.1 -C.sub.6 alkylene group, oxygen, sulfur, carbonyl, sulfonyl or fluoroalkylene group, n is 0 or 1 and z is 0 or 1.
The above described alkenylated diphenyldiisocyanates have been found to be well suited for preparing crosslinkable condensation polymers by providing pendant unsaturation for post curing and polymerization. They are also well suited for preparing polyurethane and polyurea elastomer systems.
REFERENCES:
patent: 2786864 (1957-03-01), Wirth et al.
patent: 3105845 (1963-10-01), Fetterly
patent: 3180883 (1965-04-01), Case
patent: 3878235 (1975-04-01), Schnabel
patent: 4399073 (1983-08-01), Schaefer
patent: 4440871 (1984-04-01), Lok
patent: 4500651 (1985-02-01), Lok
patent: 4551236 (1985-11-01), Lok
patent: 4605492 (1986-08-01), Lok
Burgoyne, Jr. William F.
Dixon Dale D.
Air Products and Chemicals Inc.
Brewer Russell L.
Marsh William F.
Siegel Alan
Simmons James C.
LandOfFree
Alkenylated diphenyldiisocyanates for use in preparing polyureth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alkenylated diphenyldiisocyanates for use in preparing polyureth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkenylated diphenyldiisocyanates for use in preparing polyureth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-854150