Echo also developed its needle-free skin preparation device as a platform technology that allowed for enhanced skin permeation
enabling extraction of analytes, such as glucose, and enhanced delivery of topical pharmaceuticals.
The incorporation of silica into PDMS had a significant effect on both the separation factor and permeation
In addition, specimens of each test material were provided to an OEM automotive manufacturer for permeation
testing in accordance with the standard test method for this property.
The newest commercial PA 6 grade offering permeation
resistance is Technyl C 536XT, says Gary Kachin, market development manager.
Systech Illinois have performed permeation
tests in order to separate the contribution of the closure from the total oxygen transmission of the complete package.
Figure 1 shows the weight loss of benzene as a function of time, during a permeation
Physical property and volume swell changes, as well as permeation
rates were measured and trends are noted.
Systech Illinois provide a range of water vapour and oxygen permeation
analysers which offer testing for many different packaging applications.
Prior Information Notice: Gel permeation
Because of containing cationic amine groups and anionic carboxyl groups in matrix of CMCS, the swelling, drug permeation
, and release properties could be controlled by the pH change .
This article discusses the use of novel filler materials to improve the permeation
resistance of elastomers, while maintaining or improving the other desirable properties.
regulations to take effect in California in 2008 for small off-road equipment (SORE) applies to engines with displacements greater than 80 cc but less than 25 HP and require that plastic fuel tanks limit permeation
rates for standard gasoline to less than 1.
6,838,053, "Platinum silicide permeation
layer device with microlocations," by the U.
Both resist stress cracking caused by surfactants and ozonated materials, as well as permeation
by hydrochloric acid.
Trademarked as SurShield barrier, the material is 35-45% more effective at preventing the permeation
of carbon dioxide compared to previous barrier formulations.