Emulsifiers for polyurethane based foam
AssigneeEvonik Operations GmbH
InventorsJennifer Elizabeth Antoline Al-Rashid, Udo Banseberg, Stephanie Lynne Britton, Christian Brandl
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AssigneeEvonik Operations GmbH
InventorsJennifer Elizabeth Antoline Al-Rashid, Udo Banseberg, Stephanie Lynne Britton, Christian Brandl
Estimating the term…
This invention provides stable polyol compositions at all states and these compositions are stable for at least 24 hours, in some cases for more than 6 months. There is also provided polyol mixture compositions that may be uniformly blended under manufacturing conditions within a time period of less than eight hours, typically less than two hours, i.e., stable-polyol mixtures. The invention provides a composition and a method for making stable polyurethane foams. The polyol mixture comprises at least two polyols of different polyoxyethylene content, catalyst, at least one ethoxylated alcohol of the following formula: RO(CH2CH2O)nH, wherein R is C1-C31 linear or branched alkyl, n is an integer equal to or greater than 1; and wherein the at least one ethoxylated alcohol has a hydrophilic-lipophilic balance (HLB) value equal to or greater than about 3.7.
A composition comprising:
A polyol mixture comprising:
A method for preparing a polyol mixture comprising the steps of
Dependencies are inferred from the claim text.