Title:
【発明の名称】軽量発泡ミネラルウールパネルの製造法
Document Type and Number:
Japanese Patent JP2678781
Kind Code:
B2
Abstract:
Method for the manufacture of structural mineral panels on a foraminous support wire (40) forming a dilute aqueous dispersion of mineral fiber and/or lightweight aggregate with some fiber and binder solids in water. A small amount of cationic flocculant such as polyacrylamide is added sufficient to effect coating of the binder solids onto the mineral fiber materials and the slurry is passed to a first flooded section (42) of the support wire (40) to form an open, entangled, structural mass having water in interstitial spaces of the entangled mass. Water is stripped from the mass and the mass dried substantially without collapse of the open structure, first by application of brief pulses of high vacuum (44) followed by further vacuum (46) and passing heated dry air (49) through the open entangled structure. This produces a very uniform homogeneous panel core with very evenly spaced and uniformly sized voids in the open cored structure.
Inventors:
Isard, Tebitz Graham
Ingrat, Mark Howard
Ingrat, Mark Howard
Application Number:
JP50187988A
Publication Date:
November 17, 1997
Filing Date:
January 12, 1988
Export Citation:
Assignee:
USG Interiors, Incorporated
International Classes:
C04B38/08; D21F5/00; D21F11/02; C04B38/00; D21H13/36; D21H13/40; D21H17/37; D21H27/00; D21J1/20; (IPC1-7): C04B38/00; C04B38/08; D21F5/00
Attorney, Agent or Firm:
Toshio Takayama