CELLOFOAM GMBH & CO. KG
CELLOFOAM GMBH & CO. KG Patent applications | ||
Patent application number | Title | Published |
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20100170745 | SOUND ABSORBING MATERIAL - To satisfy the fire protection requirements for a sound-absorbing material, especially in the form of open-cell foam, without impairing the acoustic properties, at least a part of the surface of the sound-absorbing material, which is covered with an acoustically transparent film, is coated with a flame-retarding powder or sprayed with a flame-retarding solution. | 07-08-2010 |