Method of separating resin

Details Method of separating resin Method of separating resin

2011-01-04

2011-01-04

Boykin, Terressa M (Department: 1796)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C156S345420, C528S481000

Reexamination Certificate

active

07863409

ABSTRACT:
A separation object including at least two types of resins with different glass transition temperatures (glass transition temperature of a first resin1<glass transition temperature of a second resin2) is placed on a separating member3. Next, primary heating is applied at a temperature between the glass transition temperatures of the first resin1and the second resin2, and pressurization is additionally performed to cause the first resin1to adhere to the separating member3. Subsequently, a heat history of secondary heating at a temperature higher than the primary heating temperature is applied to detach and recover the second resin2by restoring the shape of the second resin2, while the first resin1adhering to and retained by the separating member3is detached by a blade5and the like for recovery.

REFERENCES:
patent: 2007/0286833 (2007-12-01), Keller et al.
patent: 92 00 280 (1992-04-01), None
patent: 11-226957 (1999-08-01), None
patent: 2002-046128 (2002-02-01), None
patent: 2002-234031 (2002-08-01), None
patent: WO 03/090941 (2003-11-01), None

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