Stock material or miscellaneous articles – Pile or nap type surface or component – Particular backing structure or composition
Patent
1983-03-30
1984-11-20
Lawrence, Evan K.
Stock material or miscellaneous articles
Pile or nap type surface or component
Particular backing structure or composition
427244, 427373, 4283193, 521112, B32B 326, B05D 500
Patent
active
044838948
ABSTRACT:
Substrates having a backing of fine celled polyurethane foam are prepared by applying to the back of the substrate a frothed polyurethane forming composition containing small amounts of a silicone surfactant having an average molecular weight below about 30,000 which provides the resultant foam with a cell count value of greater than about 16 per 0.0025 square inches and wherein the unfilled, unfrothed liquid components of said polyurethane forming composition obtains a viscosity of greater than 10,000 centipoise in less than 40 minutes at 25.degree. C.
REFERENCES:
patent: 3629308 (1971-12-01), Bailey et al.
patent: 3836560 (1974-09-01), Prokai et al.
patent: 3849156 (1974-11-01), Marlin et al.
patent: 3862879 (1975-01-01), Barron et al.
patent: 3887500 (1975-06-01), Prokai et al.
patent: 3895149 (1975-07-01), Sheffler et al.
patent: 3931429 (1976-01-01), Austin
patent: 3947386 (1976-03-01), Prokai et al.
patent: 4022941 (1977-05-01), Prokai et al.
patent: 4035529 (1977-07-01), Meisert et al.
Jenkines Randall C.
Porter James R.
Carter J. G.
Lawrence Evan K.
The Dow Chemical Company
LandOfFree
Process for applying polyurethane foams to substrates and produc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for applying polyurethane foams to substrates and produc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for applying polyurethane foams to substrates and produc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2189271