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...
Patent
1985-05-28
1986-09-09
Cockeram, Herbert S.
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 55, 528 57, 528 58, 521124, C08G 1814, C08G 1822
Patent
active
046110445
ABSTRACT:
This invention is an improvement in a process for preparing a polyurethane backed substrate whereby a reacting polyurethane forming mixture comprising at least one polyahl and at least one polyisocyanate as applied to a substrate and subsequently curing thereon to form an attached polyurethane backing. The improvement which is this invention comprises employing an organoiron or organobismuth catalyst for said polyurethane forming mixture. The organoiron or organobismuth catalyst is employed in an amount such that the polymer forming mixture exhibits the viscosity of not greater than about 20,000 cps 2 minutes after the polyahl and polyisocyanates are contacted in the presence of said catalyst at 20.degree.-50.degree. C. and the polyurethane forming mixture cures to a tack free state at an elevated temperature in the presence of said catalyst in less than about 8 minutes.
REFERENCES:
patent: 3136731 (1964-06-01), Piechota et al.
patent: 3476933 (1969-11-01), Mendelsohn
patent: 3799898 (1974-03-01), Lamplugh et al.
patent: 3821067 (1974-06-01), Taylor et al.
patent: 4151345 (1979-04-01), Hillegass
patent: 4292411 (1981-09-01), Jourquin et al.
patent: 4483894 (1984-11-01), Porter et al.
Cosan Chemical Corporation, Technical Information Sheet: "Cosat 83", Carlstadt, N.J. (Feb. 11, 1986 ).
Kelley Don H.
McKinney Linda M.
Meyer Louis W.
Cockeram Herbert S.
Cohn Gary C.
The Dow Chemical Company
LandOfFree
Polyurethane carpet backing catalyzed with organoiron and organo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyurethane carpet backing catalyzed with organoiron and organo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyurethane carpet backing catalyzed with organoiron and organo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1015977