Shape memory polymer containing composite materials

Patent metadata

Field	Value
Publication number	US-9406971-B2
Application number	US-201113175396-A
Country	US
Kind code	B2
Filing date	Jul 1, 2011
Priority date	Jul 1, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

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.

First claim

What is claimed is:

1. 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.

2. The product of claim 1 , wherein said external stimuli provides for a temperature differential sufficient to ensure a phase transition of said shape memory polymer to transform said shape memory polymer from said temporary shape to said permanent shape.

3. The product of claim 1 , wherein said at least one property comprises an increased thickness of said composite material.

4. The product of claim 3 , wherein said increased thickness alters the thermal conductivity of said composite material.

5. The product of claim 3 , wherein said increased thickness alters the electrical conductivity of said composite material.

6. The product as set forth in claim 1 wherein the shape memory polymer hollow microsphere material does not include a shape metal alloy.

7. The product of claim 1 , wherein said shape memory polymer microsphere material comprises crosslinked polyethylene or crosslinked polypropylene.

8. 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.

9. 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.

10. The product as set forth in claim 8 wherein the shape memory polymer material comprises polyolefin.

11. The product as set forth in claim 8 wherein the shape memory polymer comprises crosslinked polyethylene or crosslinked polypropylene.

12. The product as set forth in claim 9 , where the fibers have a coiled permanent shape and a straight line temporary shape.

13. The product as set forth in claim 1 wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyvinyl ethers, polyvinyl halides, polylactides, polyglycolides, polysiloxanes, polyether amids, and copolymers thereof.

14. The product as set forth in claim 9 wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyvinyl ethers, polyvinyl halides, polylactides, polyglycolides, polysiloxanes, polyether amids, and copolymers thereof.

15. The product as set forth in claim 1 wherein the shape memory hollow microsphere material does not include polycarbonate, polyolefin, polyester, polyamide, or polypropylene.

16. The product as set forth in claim 9 wherein the shape memory chopped fiber material does not include polycarbonate, polyolefin, polyester, polyamide, or polypropylene.

17. The product as set forth in claim 1 wherein the composite material further comprises a foam thermoplastic material comprising the carrier polymer material.

18. The product as set forth in claim 9 wherein the composite material further comprises a foam thermoplastic material comprising the carrier polymer material.

19. The product of claim 9 , wherein the fibers each have a helical shape in the temporary shape or the permanent shape.

20. The product as set forth in claim 9 wherein the shape memory polymer hollow microsphere material does not include a shape metal alloy.

21. The product as set forth in claim 1 wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyacrylamides, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyortho esters,-polyvinyl ethers, polyvinyl esters, polyvinyl halides, polylactides, polyglycolides, polysiloxanes, polyether amids, polyether esters, and copolymers thereof.

22. The product as set forth in claim 9 wherein the shape memory polymer hollow microsphere material comprises at least one of polyphosphazenes, poly(vinal alcohols), poly(amino acids)s, polyanhydrides, polyacrylates, polyalkylenes, polyacrylamides, polyalkylene glycols, polyalkylene oxides, polyalkylene terephthalates, polyortho esters, polyvinyl ethers, polyvinyl esters, polyvinyl halides, polylactides, polyglycolides, polysiloxanes, polyether amids, polyether esters, and copolymers thereof.

23. The product as set forth in claim 9 wherein the shape memory chopped fiber material further comprises a polymeric carrier resin.

24. The product as set forth in claim 23 wherein polymeric carrier resin comprises polymeric and non-polymeric reinforcing agents in the form of fibers, platelets, particles.

25. The product of claim 23 wherein the polymeric carrier resin has a high modulus equal to or greater than 1 GPa within a normal operating range of

Assignees

• Kia Hamid G
• Verbrugge Mark W
• Xie Tao
• Rousseau Ingrid A
• Gm Global Tech Operations Llc

Inventors

• Kia Hamid G
• Verbrugge Mark W
• Xie Tao
• Rousseau Ingrid A

Classifications

• H01M50/417

  Polyolefins · CPC title

• C08J9/35

  Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments · CPC title

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• B29C61/0608

  characterised by the configuration or structure of the preforms · CPC title

• H01M2/162

  Electricity · mapped topic