Polyurethane foam forming composition including triglycerides, polyurethane foam made from the composition, and method of making polyurethane foam
AssigneeLear Corporation
InventorsROBERT D. DAWE, EDMUND J. MADAJ, ASHFORD A. GALBREATH, Asad S. Ali
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Abstract
The present disclosure relates to a method of making polyurethane foam, the method comprising providing a polyol mixture comprising polyether polyol and unmodified vegetable oil having a hydroxyl number of less than 10; and reacting isocyanate with the polyol mixture to form a polyurethane foam, wherein the unmodified vegetable oil does not react and does not form part of the polyurethane foam. The present disclosure also relates to polyurethane formed by the method and polyurethane compositions.
Claims20
A method of making polyurethane foam, the method comprising:
- providing a polyol mixture comprising polyether polyol and unmodified vegetable oil having a hydroxyl number of less than 10;
- and
- reacting isocyanate with the polyol mixture to form a polyurethane foam, wherein the unmodified vegetable oil does not react and does not form part of the polyurethane foam.
A method for forming a polyurethane foam, the method comprising:
- reacting a polyol composition with isocyanate to form a polyurethane, the polyol composition comprising polyol, unmodified vegetable oil having a hydroxyl number of less than 10 and being present in the polyol composition in an amount of less than 25 parts per 100 parts of the polyol composition, and blowing agent.
A low compression set polyurethane foam comprising the reaction product of:
- a polyol composition comprising polyol, vegetable oil, and blowing agent, the vegetable oil having a hydroxyl number of less than 10 and being present in the polyol composition in an amount of less than 25 parts per 100 parts of the polyol composition;
- and
- an isocyanate,
- wherein the polyurethane foam has a compression set of less than 18% when measured according to ASTM D-3574 at 75% dry compression set.
Dependencies are inferred from the claim text.