Process for preparation of polyesters without solid state...

Details Process for preparation of polyesters without solid state... Process for preparation of polyesters without solid state...

2007-08-08

2009-08-25

Zemel, Irina S (Department: 1796)

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

Synthetic resins

From carboxylic acid or derivative thereof

C528S271000, C528S275000, C528S279000, C528S285000, C528S287000, C528S308100, C526S086000

Reexamination Certificate

active

07579428

ABSTRACT:
Polyesters prepared using germanium catalyst in the finishing stage at temperatures less than 285° C. exhibit low loss of Ge catalyst and excellent low acetaldehyde generating characteristics.

REFERENCES:
patent: 3647362 (1972-03-01), Head et al.
patent: 4034019 (1977-07-01), Habermeier
patent: 4064112 (1977-12-01), Rothe et al.
patent: 5573820 (1996-11-01), Harazoe et al.
patent: 5681918 (1997-10-01), Adams et al.
patent: 5750635 (1998-05-01), Brink et al.
patent: 5886133 (1999-03-01), Hilbert et al.
patent: 6022603 (2000-02-01), Umeda et al.
patent: 6590044 (2003-07-01), Suzuki et al.
patent: 2001/0017429 (2001-08-01), Takahashi et al.
patent: 2002/0128427 (2002-09-01), Schaaf et al.
patent: 1 188 783 (2002-03-01), None
patent: 2002088586 (2002-03-01), None
patent: 200297353 (2002-04-01), None
patent: WO 2006/138031 (2006-12-01), None
Fred W. Billmeyer, Jr., Method for Estimating Intrinsic Viscosity, Journal of Polymer Science, 1949, pp. 83-86, 4, E.I. du Pont de Nemours & Co., Arlington, New Jersey.
PCT International Search Report for PCT/US2007/018115 dated Dec. 28, 2007.

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