The invention relates to thermoplastic compositions that contain
reactive isocyanate groups and that are suitable for use as desiccants
for packaging moisture-sensitive goods, especially for polyurethane
hotmelt adhesives that are cross-linked upon exposure to moisture.
The compositions are formed by the reaction of hydroxy- or amino-containing
polyols, including sugars, with an excess of polyisocyanates, and
admixing the resulting product with polyurethane catalysts.
Protected organic electronic device structures incorporating
pressure sensitive adhesive and desiccant
Organic electronic device structures are provided, which comprise:
(a) a first portion comprising a substrate and an organic electronic
device region (e.g., an OLED region) disposed over the substrate;
(b) a second portion comprising a cover and a getter region; and
(c) a radiation-curable, pressure-sensitive adhesive layer disposed
between the first and second portions and adhering the first and
second portions to one another. The adhesive layer is disposed over
the entire organic electronic device region and over at least a
portion of the substrate. Other aspects of the present invention
are directed to methods of making the above structures.
Humidity adjusting apparatus using desiccant
A humidity adjusting apparatus includes a fan for forcedly generating
airflow, a heater for heating introduced air to a predetermined
temperature, a driving unit for generating driving force; and a
desiccant unit having a rotational shaft driven by the driving unit
and a plurality of desiccant plates supported on the rotational
shaft in a radial direction. An orientation of each desiccant plate
and airflow direction are periodically varied.
Structure for containing desiccant
A hermetically sealed area includes a substrate having microelectronics
thereon. A desiccant is operatively disposed within the hermetically
sealed area. An equipotential region is substantially maintained
around the desiccant.
Satellite signature suppression shield
An inflatable shield for suppressing the characteristic radiation
signature of a satellite is described. The shield is conical-shaped
and made from a thin synthetic polymer film material coated with
a radiation reflecting material, such as gold or aluminum. At least
one subliming agent is contained within the shield to inflate the
shield when exposed to heat. An ultraviolet curable slurry coats
the inner walls of the shield and permanently hardens the shield
upon exposure to ultraviolet radiation from a self-contained source.
The shield optionally may include absorbing and desiccant agents
to absorb unwanted gas and water and prevent interference with the
primary mission of the satellite. Additional means may be included
for moving and positioning the shield with respect to the satellite.
Accumulator desiccant bag
A preformed desiccant bag for use with a retaining clip including
a preformed porous casing including a first preformed bulbous end
portion of a first girth, a second preformed bulbous end portion
of a second girth, a central preformed waist portion of a third
girth located between the first and second preformed bulbous end
portions, with the third girth being smaller than either the first
and second girths to thereby provide a pronounced position for reception
of a retaining clip, and desiccant in the casing.
Air desiccant system and method for automotive climate
A method and system for climate control uses a desiccant in an
automobile. The desiccant removes humidity or moisture from air
passing through the ventilation system. The desiccant is recharged
or dried by application of a vacuum. The lower pressure generated
by the vacuum reduces the temperature at which water evaporates
or boils off of the desiccant material.