Carpet backing precoats, laminate coats, and foam coats prepared from polyurethane formulations including fly ash
First Claim
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1. 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, wherein thee filler wetting agent is an ethoxylated phosphate ester in an organic carrier; and
(f) a filler, wherein the filler includes fly ash.
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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.
81 Citations
21 Claims
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1. A polyurethane-forming composition useful for preparing a polyurethane precoat, polyurethane laminate coat, or polyurethane foam coat comprising:
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(a) a polyol; (b) a chain extender; (c) a polyisocyanate; (d) a catalyst; (e) a filler wetting agent, wherein thee filler wetting agent is an ethoxylated phosphate ester in an organic carrier; and (f) a filler, wherein the filler includes fly ash. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A backed carpet having a polyurethane backing that includes at least one coat of polyurethane that is prepared from a polyurethane-forming composition comprising:
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(a) a polyol; (b) a chain extender; (c) a polyisocyanate; (d) a catalyst; (e) a filler wetting agent, wherein the filler wetting agent is an ethoxylated phosphate ester in an organic carrier; (f) a filler, wherein the filler includes fly ash. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification