Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Polymeric medium










Image Number 11 for United States Patent #8129498.

A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO--, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.








 
 
  Recently Added Patents
Method of forming a power supply controller and structure therefor
Interest point detection
Catalysts for hydrodeoxygenation of polyols
Methods and systems for aggregating and graphically representing information associated with a telecommunications circuit
Method of fabricating display device
Testing SQL query writing skills
Headset electronics
  Randomly Featured Patents
Ear tag installing tool
Circuit for improving carrier rejection in a balanced modulator
Racing clock
Combined chest and bookcase unit or the like
Electrochromic assembly including at least one polymeric substrate
Susceptor and method for manufacturing silicon epitaxial wafer
Fiber connector and adapter
Method for detecting data strobe signal
Gridded susceptor
Thin film transistor array panel for liquid crystal display having pixel electrode overlaping data and gate lines with different widths and areas