Title:
THE WATER-PROOF COMPOSITE SHEET
Document Type and Number:
WIPO Patent Application WO/2005/070635
Kind Code:
A1
Abstract:
The present invention relates to a water-proof composite sheet. The sheet is produced by blending 20-70wt% vegetable fiber, 10-60wt% pulverized coal ash and 5-40wt% binder and subsequent molding the resultant blend, where said vegetable fiber includes fiber powder produced from stalks of crops or the like, said pulverized coal ash includes coal powder with a combustion loss of less than 10 % in a variety of industries, and said binder is a mixture comprising maleic anhydride, fhthalic anhydride, polyhidric alcohol, styrene or homologues thereof, and also comprises melamine, acrylic acid or rosin and dicyclopentadiene. The water-proof composite sheet of the present invention also comprises 10-40wt% new or old plastic. Said water-proof composite sheet exhibits high strength, good water proofness and reduced pollution of the environment due to fact that most of materials employed are wastes from industry and agriculture. Said water-proof composite sheet can be widely used in the sheet-manufacturing industry, furniture-manufacturing industry and the industry of material for decoration and architecture, and also used for producing material for automotive interior decoration.
Inventors:
REN TIANRUI (CN)
Application Number:
PCT/CN2005/000016
Publication Date:
August 04, 2005
Filing Date:
January 05, 2005
Export Citation:
Assignee:
INST PROCESS ENG CAS (CN)
REN TIANRUI (CN)
REN TIANRUI (CN)
International Classes:
B27N3/00; B27N3/04; C08L97/02; (IPC1-7): B27N3/04
Foreign References:
| CN1044968A | 1990-08-29 | |||
| CN1532220A | 2004-09-29 | |||
| CN1345898A | 2002-04-24 | |||
| CN1313231A | 2001-09-19 | |||
| CN6103377A | ||||
| CN1056095A | 1991-11-13 |
Attorney, Agent or Firm:
SHANGHAI XIN TIAN PATENT AGENT CO., LTD (Shanghai 0, CN)
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