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US 9,406,971 B2Granted
Shape memory polymer containing composite materials
AssigneeGM Global Technology Operations LLC
InventorsHamid G. Kia, Mark W. Verbrugge, Tao Xie, Ingrid A. Rousseau
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Abstract
A product, and a method for forming a product, that includes a composite material having a polymeric carrier resin and a shape memory polymer material capable of transformation between a temporary shape and a permanent shape in the presence of an external stimuli, wherein said transformation from said temporary shape to said permanent shape changes at least one property of said composite material.
Claims26
A product comprising:
- a composite material comprising a carrier polymer material and a shape memory polymer hollow microsphere material configured to transform between a temporary shape and a permanent shape in the presence of an external stimuli, wherein said transformation from said temporary shape to a permanent shape changes at least one property of said composite material wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), polyamides, polyester amides, poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyacrylamides, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyortho esters, polyvinyl ethers, polyvinyl esters, polyvinyl halides, polyesters, polylactides, polyglycolides, polysiloxanes, polyether amids, polyether esters, and copolymers thereof.
A product comprising:
- a foam thermoplastic material comprising a carrier polymer material and a shape memory polymer hollow microsphere material at least partially encapsulated by the carrier polymer material and are configured to transform between a temporary shape and a permanent shape in the presence of an external stimuli, wherein said transformation from said temporary shape to a permanent shape changes at least one property of said foamed thermoplastic material, wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), polyamides, polyester amides, poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyacrylamides, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyortho esters, polyvinyl ethers, polyvinyl esters, polyvinyl halides, polyesters, polylactides, polyglycolides, polysiloxanes, polyether amids, polyether esters, and copolymers thereof.
A product comprising:
- a composite material comprising a carrier polymer material and a shape memory polymer material configured to transform between a temporary shape and a permanent shape in the presence of an external stimuli, wherein said transformation from said temporary shape to a permanent shape changes at least one property of said composite material;
- wherein the shape memory polymer material comprises a plurality of chopped fibers;
- and said fibers are admixed with the carrier polymer material wherein the fibers comprise crosslinked polypropylene wherein the shape memory polymer chopped fiber material comprises at least one of polyphosphazenes, poly(vinal alcohols), polyamides, polyester amides, poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyacrylamides, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyortho esters, polyvinyl ethers, polyvinyl esters, polyvinyl halides, polyesters, polylactides, polyglycolides, polysiloxanes, polyether amids, polyether esters, and copolymers thereof.
Dependencies are inferred from the claim text.