IP Library Granted Patent US 7,037,951
Granted Patent B2
US 7,037,951 · App. 10/296,863 · Granted May 2, 2006

Process for regenerating resins

Assignee: Sony Corporation
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Quick Facts
Patent No.
US 7,037,951
App. No.
10/296,863
Granted
May 2, 2006
Kind
B2
Abstract

The present invention is a process for regenerating a used resin and prevents deterioration in the quality of the resin by adding to the used resin an another resin having given physical properties superior to those of the used resin and then regenerating the resin.

Claims (4)

1. A process for manufacturing a regenerated resin, the regenerated resin comprising polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS) resin, said process comprising the step of adding PC resin to ABS resin, wherein;

(a) the ratio B/A is at least 0.25 and at most 0.50, B being the weight of the PC in the regenerated resin and A being the weight of the ABS in the regenerated resin;

(b) the Notch Izot impact strength impact of the regenerated resin is at feast 33 ft-lb/in and at most 52 ft-lb/in;

(c) the glass transition temperature of the regenerated resin is at least 103° C. and at most 108° C.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2002
From: INAGAKI, YASUHITO
To: SONY CORPORATION
Reel/Frame 013889/0905 →
Continuity (1)
Related Publication 20030134914A1 · Jul 17, 2003