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US 11,629,251 B2Granted
Composition and method for reducing aldehyde content in polyurethane foams
AssigneeMilliken & Company
InventorsChunping Xie, Shengjun Yao
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Abstract
A method for producing a polyurethane polymer comprises the steps of: (a) providing a polyol; (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound; (c) combining the polyol and the additive composition to produce a polyol composition; (d) providing an isocyanate compound; and (e) combining and reacting the polyol composition and the isocyanate composition to produce a polyurethane polymer.
Claims13
A method for producing a polyurethane polymer, the method comprising the steps of:
- (a) providing a polyol;
- (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound;
- (c) combining the polyol and the additive composition to produce a polyol composition;
- (d) providing an isocyanate compound;
- and
- (e) combining and reacting the polyol composition and the isocyanate compound to produce a polyurethane polymer.
3 more elements
Dependencies are inferred from the claim text.