| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 05.00 |
| PATENT ASSIGNEE | Celotex |
| PATENT CLAIMS |
(a) Forming an aq slurry of (i) fibrous material & (ii) asphalt, the solids content of slurry < 8% the asphalt being included in slurry in amount 30-50% by wt. solids & optionally < 15% by wt. solids being asphalt incorporated in aq slurry in form of an emulsion (b) Mixing (c) Dewatering slurry to form wet mat, said dewa tering being made by continuously dewatering slurry on a moving porous carrier capable of passing drainable water therethrough & retaining solids thereon (d) Pressing wet mat for consolidation (e) Drying Process includes no hot pressing |
| PATENT PHOTOCOPY | Available on request |
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