Polyurethane materials formed from epoxidized plant oils
AssigneeInternational Business Machines Corporation
InventorsBrandon M. Kobilka, Joseph Kuczynski, Timothy C. Mauldin, Jason T. Wertz
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Abstract
In an example, a process of forming a polyurethane material is disclosed. The process includes forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil. The process also includes chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules. The process further includes polymerizing the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material.
Claims17
A process of forming a polyurethane material, the process comprising:
- forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil;
- chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- performing a polymerization reaction using a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material;
- and
- chemically reacting the first polyurethane material with a diisocyanate material to form a second polyurethane material.
The process of 1, wherein the azide material includes diphenylphosphoryl azide.
A process of forming a polyurethane material, comprising:
- forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil including epoxidized linseed oil, wherein the carboxylic acid-terminated aliphatic polyol molecules formed from the epoxidized linseed oil include:
- a first set of carboxylic acid-terminated aliphatic polyol molecules having two hydroxyl groups and one carboxylic acid group;
- a second set of carboxylic acid-terminated aliphatic polyol molecules having six hydroxyl groups and one carboxylic acid group;
- and
- a third set of carboxylic acid-terminated aliphatic polyol molecules having four hydroxyl groups and one carboxylic acid group;
- chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- and
- performing a polymerization reaction using a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material.
A process of forming a polyurethane material, comprising:
- forming carboxylic acid-terminated aliphatic polyol molecules, along with a glycerol byproduct, from an epoxidized plant oil;
- chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- and
- performing a polymerization reaction using a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material, wherein the mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules further includes the glycerol byproduct.
A process of forming a polyurethane material, comprising:
- forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil;
- chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- performing a polymerization reaction using a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material;
- chemically reacting the first polyurethane material with a diisocyanate material to form a second polyurethane material;
- and
- adjusting a degree of cross-linking of the second polyurethane material by adjusting an amount of the diisocyanate material that is chemically reacted with the first polyurethane material.
A process of forming a polyurethane material, comprising:
- forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil;
- chemically reacting the carboxylic acid-terminated aliphatic polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- performing a polymerization reaction using a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material;
- chemically reacting the first polyurethane material with a diisocyanate material to form a second polyurethane material;
- and
- adjusting a degree of polymerization of the first polyurethane material such that a subset of hydroxyl groups of a plurality of hydroxyl groups of the monoisocyanate-functionalized aliphatic polyol molecules remain available for chemical reaction with the diisocyanate material.
An acoustic dampening foam comprising:
- a petroleum-based polyurethane material;
- and
- a biologically-based polyurethane material formed by a process that includes:
- forming carboxylic acid-terminated aliphatic polyol molecules from an epoxidized plant oil;
- chemically reacting the carboxylic acid-terminated polyol molecules with an azide material to form monoisocyanate-functionalized aliphatic polyol molecules;
- polymerizing a mixture that includes the monoisocyanate-functionalized aliphatic polyol molecules to form a first polyurethane material;
- and
- chemically reacting the first polyurethane material with a diisocyanate cross-linking material to form the biologically-based polyurethane material.
Dependencies are inferred from the claim text.