Method of manufacturing composite board

Details Method of manufacturing composite board Method of manufacturing composite board

2006-01-17

2008-12-02

Szekely, Peter (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S013000

Reexamination Certificate

active

07459493

ABSTRACT:
A composite board is made from waste medium density fiber (MDF) board or waste particle board that includes solid urea formaldehyde. The waste board is chopped and milled into particles having a size between 20 mesh and 150 mesh, creating a waste flour. After removing moisture from the waste flour, the dried waste flour is mixed with a thermoplastic to bind and encapsulate the waste flour. Internal lubricants are added to improve the flow characteristics of the blended material, and external lubricants are added to present sticking of the mixture to an extruder or mold. Mineral fillers are added to improve the flexural modules of the composite board, and a plasticizer can be added to improve the physical properties or mechanical characteristics of the mixture. An ultraviolet absorber, a biocide, and a pigment can also be added. The blended material is extruded or molded into a desired shape. When cooled, the thermoplastic hardens to form a solid composite board.

REFERENCES:
patent: 3283048 (1966-11-01), Hoppeler
patent: 3718536 (1973-02-01), Downs et al.
patent: 3965056 (1976-06-01), Stout et al.
patent: 4145242 (1979-03-01), Chow
patent: 4405744 (1983-09-01), Greinecker et al.
patent: 4752637 (1988-06-01), Israel
patent: 5134023 (1992-07-01), Hsu
patent: 5432000 (1995-07-01), Young, Sr. et al.
patent: 5445878 (1995-08-01), Mirous
patent: 5543215 (1996-08-01), Hansen et al.
patent: 5626939 (1997-05-01), Kotlair et al.
patent: 5629083 (1997-05-01), Teodorczyk
patent: 5866057 (1999-02-01), Roffael
patent: 5952410 (1999-09-01), Yokoyama et al.
patent: 5955023 (1999-09-01), Ioffe et al.
patent: 5981631 (1999-11-01), Ronden et al.
patent: 6294117 (2001-09-01), Rosthauser et al.
patent: 6306251 (2001-10-01), Jewell et al.
patent: 6344504 (2002-02-01), Zehner et al.
patent: 6379814 (2002-04-01), Dupre et al.
patent: 6391456 (2002-05-01), Krishnaswamy et al.
patent: 6414066 (2002-07-01), Lem et al.
patent: 6461553 (2002-10-01), Hansen et al.
patent: 6498205 (2002-12-01), Zehner
Office Action, dated May 23, 2005.
Office Action, dated Jul. 25, 2005.

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