Title:
連続気泡フォームの製造方法
Document Type and Number:
Japanese Patent JP3916562
Kind Code:
B2
Abstract:
The invention relates to a foam for purifying and filtrating air, particularly filtrating toxic compounds, such as for instance tar and polycyclic aromatic hydrocarbons (PAHs) from tobacco smoke, and to a method to prepare this foam. The foam according to the invention is a foam comprising cavities and interstitial spaces situated outside of the cavities, the cavities being defined by walls, the walls of the cavities being composed of a crosslinked polymer and possible additives, the average largest dimension of the cavities being in the range of 30-350 mum, a considerable part of the cavities comprising two or more perforations in their walls, the perforations having an average diameter in the range of 5-300 mum, a considerable part of the perforations of adjacent cavities being positioned with respect to each other such that a continuous, non-linear path is formed, the foam having a porosity of at least 45 vol. % the porosity being defined as the volume percentage, based on the total volume of the foam, of that part of the foam accessible to matter passing through the foam, and the foam having a specific surface in the range of 0.1-15 m2/g.
Inventors:
Joseph, Engelbert, Kristian, Baile
Application Number:
JP2002545078A
Publication Date:
May 16, 2007
Filing Date:
November 21, 2001
Export Citation:
Assignee:
B.V. PRODUKT ONTWIKKELING BEHEER
International Classes:
A24D3/04; A24D3/02; A24D3/08; A24D3/10; A24D3/14; C08G12/12; C08J9/00; C08J9/32; C08J9/36
Foreign References:
| WO2000026005A1 |
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Yukitaka Nakamura
Konno Akio
Noritaka Yokota