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US 9,791,722 B2Granted
Plural element composite materials, methods for making and using the same
AssigneeSegan Industries, Inc.
InventorHans O. Ribi
Life of this patent
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Abstract
The invention provides composite materials comprising a shape change element and an optical change element, which elements undergo a change in response to an applied stimulus. Also provided are objects that include the subject shape changing materials, as well as methods of making and using the same.
Claims20
A composite material consisting of:
- (a) a shape memory polymer consisting of a thermoplastic polyurethane that changes shape in response to a first applied stimulus;
- and
- (b) a thermochromic pigment that changes color in response to a second applied stimulus.
A composite material consisting of:
- (a) a shape memory polymer consisting of a thermoplastic polyurethane that changes shape in response to a first applied stimulus;
- and
- (b) two different color change compounds comprising a first color change compound that changes color in response to a temperature change and a second color change compound that changes color in response to light.
A composite material consisting of:
- (a) a gum base;
- (b) a shape change polymer consisting of a thermoplastic polyester that changes shape in response to a first applied stimulus;
- and
- (c) a color change component that changes color in response to a second applied stimulus.
1 more element
Dependencies are inferred from the claim text.