Flame retardants for polyurethanes

Details Flame retardants for polyurethanes Flame retardants for polyurethanes

1986-01-22

1987-05-19

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

26050114, 26050117, 26050119, 26050252, 521 85, 521107, 524131, 524132, 528 71, 528 72, 544 82, 544 85, 544 87, 544106, 546164, 546189, 546243, 546244, 546245, 558131, 558154, C07F 940, C07F 938, C08K 553, C08H 918

Patent

active

046669671

ABSTRACT:
The invention provides polyurethanes and polyisocyanurate having incorporated therein a flame retardant amount of a salt formed by reaction between dimethyl methyl phosphonate, monomethyl methyl phosphonate or methyl phosphonic acid, and a compound of the general formula (I). ##STR1## in which X is O, S or NH, R.sup.1 is H, alkyl with 1 to 4 carbon atoms, alkenyl of up to 4 carbon atoms, CN, CONH.sub.2 or NH.sub.2, R.sup.2 is H, alkyl with 1 to 4 carbon atoms or alkenyl of up to 4 carbon atoms or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached form a heterocyclic ring of up to 6 carbon atoms which may optionally contain another hetero atom and R is H, an alkyl group with 1 to 8 carbon atoms, an aryl group with 6 to 10 carbon atoms, a cycloalkyl group with 5 to 12 carbon atoms or a heterocyclic group with up to 9 ring carbon atoms, or, together with R.sup.1 forms an alkylene chain of 3 to 10 carbon atoms, or R is a group NHR.sup.3 wherein R.sup.3 is H, alkyl with 1 to 4 carbon atoms, alkenyl of up to 4 carbon atoms, CN, CONH.sub.2 or NH.sub.2 or together with R.sup.1 forms an alkylene chain of 2 or 3 carbon atoms, or R is a group ##STR2## where R.sup.1 and R.sup.2 are as defined above and R.sup.4 is a direct bond or an alkylene group having up to 8 carbon atoms or is an arylene group having 6 to 10 carbon atoms.

REFERENCES:
patent: 3134742 (1964-05-01), Wismer et al.
patent: 3400085 (1968-09-01), Kujawa et al.
patent: 3963437 (1976-06-01), Le Blanc et al.
patent: 4025470 (1977-05-01), Andres et al.
patent: 4165411 (1979-08-01), Marans et al.
patent: 4308197 (1981-12-01), Byrd et al.
patent: 4341694 (1982-07-01), Halpern
patent: 4403075 (1983-09-01), Byrd et al.
patent: 4407981 (1983-10-01), Aaronson
patent: 4452849 (1984-06-01), Nachbur et al.
patent: 4487800 (1984-12-01), Nachbur et al.

Affiliated with

Also associated with

Rating

Flame retardants for polyurethanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flame retardants for polyurethanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flame retardants for polyurethanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1565382