Thermoscattering materials and devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 2002
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
May 19, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Thermally reversible light scattering materials are provided in accordance with the invention including a low melting, polymeric material dispersed in a polymer matrix; a first polymer which upon heating from a temperature below its melting point to a temperature above its melting point changes from a light scattering solid to a liquid, the first polymer being dispersed in a matrix provided by a second polymer to form a light scattering polymer material when cold and a less or non-light scattering material when hot; and thermally reversible light scattering materials which go from light scattering at lower temperatures to less or non-light scattering at higher temperatures. The thermally reversible light scattering materials of the invention can be incorporated in many applications including a window which can reversibly change from a privacy condition to a non-privacy or clear condition; a window which can reversibly change between displaying images or objects to obscuring images or objects; a layer which can reversibly change between being clear and frosted by cycling the temperature of the layer; a reversible display; a temperature indicating material or device.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully