Shape memory polymer and resin composition thereof
AssigneeNano and Advanced Materials Institute Limited
InventorsYONG ZHU, YANGFAN ZHOU, JIANPING HAN, YINGSHUN LI, PAOCHIEH WANG, LI FU, CHENMIN LIU
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Abstract
The present invention discloses a shape memory polymer and resin composition thereof. The shape memory polymer comprising a polymer blend of a polyvinyl chloride and a polyurethane, the polyurethane being prepared from a reaction mixture consisting essentially of: (A) at least one diisocyanate compound; and (B) a long chain polyol; wherein the polyvinyl chloride is configured to be the hard segment that preserves the original shape, and the polyurethane is configured to be the soft segment that forms the temporary shape.
Claims20
A shape memory polymer comprising a polymer blend of a polyvinyl chloride and a polyurethane, the polyurethane being prepared from a reaction mixture consisting essentially of:
- (A) at least one diisocyanate compound;
- and
- (B) a long chain polyol, with molecular weight from 500 to 5000, is present in an amount more than 80 weight percent of the polyurethane, and the functionality of the long chain polyol ranges from 2 to 3;
- wherein the polyvinyl chloride is configured to be the hard segment that preserves the original shape, and the polyurethane is configured to be the soft segment that forms the temporary shape.
Dependencies are inferred from the claim text.