US2003168768A1PendingUtilityA1

Method for producing environment-protective paper based plastic material

Priority: Mar 6, 2002Filed: Mar 6, 2002Published: Sep 11, 2003
Est. expiryMar 6, 2022(expired)· nominal 20-yr term from priority
Inventors:Weng Hung-Chang
C08L 97/02C08L 1/02
12
PatentIndex Score
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Cited by
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Claims

Abstract

A method for producing environment-protective paper based plastic material is proposed to treat recollected waste paper by dipping, crashing, and dewatering to make it become pulp, then add to the pulp with mucilage and plaster in volume ratio of 2.4˜1.6:1.2˜0.8:0.3˜0.7 and agitate it uniformly to become a soft plastic material for people to knead freely and form into a profile desired or stuff it into a mold module with hands. Then, after being dried and cured, a straightforward stony decorative article, such as an indoor doll statue or an outdoor flower holder, can be obtained. Moreover, it is particularly important that the product made by this method is decomposable by the nature without polluting our environments if discarded.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A method for producing environment-protective paper based plastic material, comprising the following steps: 
 (a) Assorting, combining, dipping, crashing, and dewatering recollected waste paper to form required pulp;    (b) Blending the pulp with mucilage and plaster in volume ratio of 2.4˜1.6:1.2˜0.8:0.3˜0.7 uniformly to become a desired plastic material;    (c) Stuffing the plastic material into a mold module with hands;    (d) Shaking out the mold module after slightly dried; and    (e) Drying and curing the castings to become a product.    
     
     
         2 . The method according to  claim 1 , in which dyestuff is added after dipping and crashing of the waste paper to obtain a specifically colored product.  
     
     
         3 . The method according to  claim 1 , in which the mucilage is a resin.  
     
     
         4 . The method according to  claim 1 , in which the mucilage is a waterproof binder.  
     
     
         5 . The method according to  claim 1 , in which the mucilage is a resin or a blended glue including corn starch plus wheat starch or sweet potato starch.  
     
     
         6 . The method according to  claim 1 , in which a small amount of stone powder is added in the process of step (b).  
     
     
         7 . The method according to  claim 1 , in which the plastic material in different colors is stuffed with hands into the mold module time after time in the process of step (c) to beautify the sightliness of the product.  
     
     
         8 . A method for producing environment-protective paper based plastic material, comprising the following steps: 
 (a) Assorting, combining, dipping, crashing, and dewatering recollected waste paper to form required pulp;    (b) Blending the pulp with mucilage and plaster in volume ratio of 2.4˜1.6:1.2˜0.8:0.3˜0.7 uniformly to become a desired plastic material;    (c) Kneading the plastic material to form desired shapes with hands; and    (d) Drying and curing the shaped product to become a complete decorative article.

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