Animal husbandry – Material for absorbing moisture from waste product
Patent
1997-05-19
1998-10-20
Price, Thomas
Animal husbandry
Material for absorbing moisture from waste product
A01K 2900
Patent
active
058231390
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a mammalian excrement treating article made using a plastic waste, particularly, a polyethylene terephthalate waste, a polyethylene waste, a polypropylene waste, a polystyrene waste or the like as a raw material, and more particularly, to a mammalian excrement treating article which is made using a polyethylene terephthalate waste as a raw material and which has a water retention function.
The present invention also relates to a mammalian excrement treating article which is made using a plastic waste as a raw material such as a polyethylene terephthalate, and which has an insecticidal function for exterminating noxious insects adhered to the body of a mammal, particularly, a domestic pet animal, from the mammalian body, and for preventing noxious insects from being adhered to the mammalian body by use thereof at the time of excretion.
BACKGROUND ART
Pet bottles are, for example, light, hard-to-break and transparent containers made of polyethylene terephthalate and are widely used as soy sauce and cooling beverage bottles.
For example, a nonstandardized paper diaper waste generated from a paper diaper manufacturing process is pulverized and classified by screening into a plastic waste comprising a pulverized mixture of polypropylene, polyethylene, rubber and the like, and a water-absorbable resin and paper powder. The plastic waste powder produced in this classifying process is utilized as a starting material for a paper diaper, or used in another application. However, in this classifying process, the plastic waste such as the polypropylene, the polyethylene and the rubber and the like is produced in a large amount which is about one fourth of the treated paper diaper waste. This plastic waste cannot be utilized in any applications. Moreover, this plastic waste has a high calorific value of 5,500 kcal/kg or more and hence, if it is incinerated as it is, the furnace is damaged. For this reason, this plastic waste is separated from the common refuse, and must be incinerated with an incombustible refuse, resulting in a problem that much labor is required. Therefore, the plastic waste is utilized directly for land-filling, which gives rise a problem in a natural environment. It is desired that a plastic waste capable of being incinerated as is the common refuse, can be effectively utilized.
It is an object of the present invention to solve the problems concerning the incineration of the plastic waste having a high calorific value.
The present inventors have found that if the plastic waste such as polyethylene terephthalate, polyethylene, polypropylene and a synthetic rubber and the like is pulverized into a particle size of 5 mm or less. preferably 2 mm or less, a powder, i.e., a congregation of particles, resulting from the pulverization has a water-absorbing ability and a water retention which are significantly increased, as compared with those before the pulverization.
The present inventors have also found that for example, the plastic waste powder having a high calorific value such as a polyethylene terephthalate pulverized into 5 mm or less can be used as a starting material for a incineratable mammalian excrement treating article by incorporating an incombustible inorganic compounding material and further a water-absorbable resin into the plastic waste and forming a mixture into a granular shape.
The present inventors have also found that for example, the plastic waste powder having a high calorific value such as polyethylene terephthalate pulverized into a particle size of 5 mm or less can be incinerated utilizing the water absorbing ability thereof by incorporating an incombustible inorganic compounding material and further a water-absorbable resin into the plastic waste powder to produce a combustible mixture having a high calorific value of 1,000 to 2,500 kcal/kg at the time when it has absorbed water, and thus, they have reached the accomplishment of the present invention.
Further, the present inventors have found that the plastic waste powder such
REFERENCES:
patent: 5177036 (1993-01-01), Kunst et al.
patent: 5429073 (1995-07-01), Ballard
patent: 5429741 (1995-07-01), Webb et al.
patent: 5489427 (1996-02-01), Bilbrey
patent: 5662067 (1997-09-01), Stubbs et al.
Kabushikikaishi Daiki
Price Thomas
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