Resources Contact Us Home
Disposable composite insensitive to surface moisture but disintegratable in aqueous liquid

Image Number 2 for United States Patent #4186233.

A disposable composite comprising an absorbent, swellable film such as a lightly cross-linked polyacrylate, having on its two major surfaces a hydrophobic coating such as polyvinylidene chloride, is useful as a liner or packaging for disposable articles such as sanitary napkins. The hydrophobic coating protects the coated surfaces of the absorbent, swellable film from moisture, thereby maintaining the composite's integrity during use. Upon the composite's immersion in an aqueous fluid, the exposure of any uncoated film to water causes the composite to disintegrate, providing for easy flushability.

  Recently Added Patents
Method and apparatus for channel coding and decoding in a communication system using a low-density parity-check code
Method and apparatus for de-spreading a spread-spectrum audio/video signal
Light-emitting device including independently electrically addressable sections
Method for enhancing content using persistent content identification
Blood separating agent and blood collection container
Optical transport having full and flexible bandwidth and channel utilization
High efficiency rear lit waveguide
  Randomly Featured Patents
Configuration for supporting and stabilizing an injured person
Burglar alarm
Coordinate measuring apparatus
Passive radiator
Torsional vibrator
Safety plug
Coupling structure of optical fibers and optical waveguides
Aircraft wheel brake metering and despin valve
Arrangement for detecting an opaque label area on a transparent envelope
Video entry-phone control board