Polyfluorinated, branched-chain diols and diisocyanantes and flu

Details Polyfluorinated, branched-chain diols and diisocyanantes and flu Polyfluorinated, branched-chain diols and diisocyanantes and flu

1990-03-12

1993-04-20

Foelak, Morton

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...

528 63, 570181, C08G 1828, C08G 1832

Patent

active

052044416

ABSTRACT:
Branched-chain diols and a method of forming them by reacting 1,4-diiodoperfluorobutane and perfluoropropylene to obtain branched-chain diiodide adducts thereof, reacting the diiodide adducts with ethylene to obtain I--CH.sub.2 CH.sub.2 --R--CH.sub.2 CH.sub.2 --I, wherein R is a branched-chain perfluoroalkyl radical, and hydrolysing the iodo groups to alcohols to obtain HO--CH.sub.2 CH.sub.2 --R--CH.sub.2 CH.sub.2 --OH. These diols can be reacted with branched-chain diisocyanates to form polyurethanes of better processability and lower glass transition temperatures than polyurethanes prepared from linear fluorinated monomers.

REFERENCES:
patent: 4487903 (1984-12-01), Tatemoto et al.
patent: 4942164 (1990-07-01), Baum et al.
patent: 5043410 (1991-08-01), Re et al.

Affiliated with

Also associated with

Rating

Polyfluorinated, branched-chain diols and diisocyanantes and flu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyfluorinated, branched-chain diols and diisocyanantes and flu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyfluorinated, branched-chain diols and diisocyanantes and flu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1526980