IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0906348
(2001-07-16)
|
| 우선권정보 |
IT-0000162 (1998-12-22) |
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
6 인용 특허 :
10 |
초록
▼
There is disclosed a method for manufacturing products through the use of waste materials of various kind, such as heterogeneous plastic materials, wood, minerals, etc., derived from recycling processes, differentiated waste collection systems, solid urban wastes, industrial processing scraps or by-
There is disclosed a method for manufacturing products through the use of waste materials of various kind, such as heterogeneous plastic materials, wood, minerals, etc., derived from recycling processes, differentiated waste collection systems, solid urban wastes, industrial processing scraps or by-products, and the like, such products being adapted to be used in a wide range of most varied applications, particularly though not exclusively for manufacturing structural parts and decorative finishes for office furniture as well as furniture for cinematoghraph theatres, communities, concert halls and the like.
대표청구항
▼
1. A method for manufacturing products by utilizing heterogeneous waste material plastics derived from recycling processes, sorted out waste collection systems, solid urban wastes, or industrial processing scraps, said plastics having different melting temperatures and being prevailingly constituted
1. A method for manufacturing products by utilizing heterogeneous waste material plastics derived from recycling processes, sorted out waste collection systems, solid urban wastes, or industrial processing scraps, said plastics having different melting temperatures and being prevailingly constituted by polyolefins and a heterogeneous mix of non-compatible plastic materials by utilizing a mold, said products being each provided with a not-visible inner portion and a visible outer portion surrounding and coating said inner portion of product, wherein said waste materials are in succession shredded into small-sized particles and mixed together in a mixing apparatus, thereby forming a first compound constituting a first component of each product adapted to provide for said not-visible inner portion of each product, and a second compound separated from the first compound constituting a second component of each product adapted to surround and coat said inner portion of product and provide for said visible outer portion of product, wherein said first and second compounds are subsequently heated separately from each other, under previous addition of heat stabilizing means and blowing means in the first compound adapted to swell the first compound during its heating and coloring means in the second compound, to a pre-determined heating temperature, thereby bringing about respectively a first and a second plasticized mass, whose materials include plastic materials having melting temperatures higher than said heating temperature incorporated in said mass, thereby behaving like inert filling materials, and wherein said first and second plasticized masses are injected at the same time into said mold shaped as the respective products, by mixing homogeneously with each other so as to form a compound with lower density and higher flowability and a compound with higher density and lower flowability, determined by said inert filling materials, wherein said compound having lower density and higher flowability forms said outer portion of product surrounding said compound having higher density and lower flowability which forms said inner portion of product and the inner and outer portions are blended and amalgamated.
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