Carpet backing precoats, laminate coats, and foam coats prepared from polyurethane formulations including fly ash
AssigneeThe Dow Chemical Company
InventorRandall C. Jenkines
Life of this patent
Estimating the term…
Abstract
The present invention is a polyurethane carpet backing prepared from a polyurethane-forming composition wherein fly ash is included as a filler material. High loadings of fly ash can be obtained without detriment to the process for preparing a polyurethane carpet backing, or adverse effect to the physical properties of the carpet backing.
Claims32
A polyurethane-forming composition useful for preparing a polyurethane precoat, polyurethane laminate coat, or polyurethane foam coat comprising:
- (a) a polyol;
- (b) a chain extender;
- (c) a polyisocyanate;
- (d) a catalyst;
- (e) a filler wetting agent;
- and
- (f) a filler, wherein the filler includes Class F fly ash.
A backed carpet having a polyurethane backing that includes at least one coat of polyurethane that is prepared from a polyurethane-forming composition comprising:
- (a) a polyol;
- (b) a chain extender;
- (c) a polyisocyanate;
- (d) a catalyst;
- (e) a filler wetting agent;
- and
- (f) a filler, wherein the filler includes Class F fly ash.
A polyurethane-forming composition useful for preparing a polyurethane precoat, polyurethane laminate coat, or polyurethane foam coat comprising:
- (a) a polyol;
- (b) a chain extender;
- (c) a polyisocyanate;
- (d) a catalyst;
- and
- (e) a filler, wherein the filler includes Class F fly ash.
A backed carpet having a backing comprised of polyurethane and a filler wherein the filler is comprised of Class F fly ash.
Dependencies are inferred from the claim text.