Process for the preparation of polyesters containing...

Details Process for the preparation of polyesters containing... Process for the preparation of polyesters containing...

2007-05-01

2007-05-01

Seidleck, James J. (Department: 1711)

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

Synthetic resins

Polymerizing in two or more physically distinct zones

C528S176000, C528S194000, C528S298000, C528S300000, C528S301000, C528S302000, C528S306000, C528S307000, C528S308000, C528S308500

Reexamination Certificate

active

11414466

ABSTRACT:
Disclosed is a process for the preparation of high molecular weight polyesters by reacting one or more dicarboxylic acids directly with 1,4-cyclohexanedimethanol and, optionally, one or more diols. The process uses an overall diol to dicarboxylic acid molar ratio of about 0.97 to about 1.2 and an incremental addition of either the diacid or diol components. The process provides a shorter total reaction time and, thus, lessens the thermal degradation of polyester which may result in high color and reduced molecular weight.

REFERENCES:
patent: 2901466 (1959-08-01), Kibler et al.
patent: 3070575 (1962-12-01), Cramer
patent: 3271370 (1966-09-01), Akin et al.
patent: 3487049 (1969-12-01), Busot
patent: 3551386 (1970-12-01), Berkau et al.
patent: 3709859 (1973-01-01), Hrach et al.
patent: 3787370 (1974-01-01), Shima et al.
patent: 3984379 (1976-10-01), Oka et al.
patent: 4020049 (1977-04-01), Rinehart
patent: 4205157 (1980-05-01), Duh
patent: 4238593 (1980-12-01), Duh
patent: 4442269 (1984-04-01), Sommerfeld et al.
patent: 4983711 (1991-01-01), Sublett et al.
patent: 5034263 (1991-07-01), Maier et al.
patent: 5039717 (1991-08-01), Kawakami et al.
patent: 5194573 (1993-03-01), Schmidt et al.
patent: 5198530 (1993-03-01), Kyber et al.
patent: 5340907 (1994-08-01), Yau et al.
patent: 5385773 (1995-01-01), Yau et al.
patent: 5608031 (1997-03-01), Yau et al.
patent: 5616404 (1997-04-01), Sublett
patent: 5631330 (1997-05-01), Yezrielev et al.
patent: 5650481 (1997-07-01), Yau et al.
patent: 5656715 (1997-08-01), Dickerson et al.
patent: 5681918 (1997-10-01), Adams et al.
patent: 5986040 (1999-11-01), Patel et al.
patent: 6084055 (2000-07-01), Brunelle et al.
patent: 6103859 (2000-08-01), Jernigan et al.
patent: 6143837 (2000-11-01), Al Ghatta et al.
patent: 6197856 (2001-03-01), Dean et al.
patent: 6239200 (2001-05-01), Kau et al.
patent: 6342579 (2002-01-01), Jeon et al.
patent: 6350851 (2002-02-01), Inada et al.
patent: 6399716 (2002-06-01), Chung et al.
patent: 6429278 (2002-08-01), Howell, Jr. et al.
patent: 6455664 (2002-09-01), Patel et al.
patent: 6458915 (2002-10-01), Quillen
patent: 6646086 (2003-11-01), Slone
patent: 6740377 (2004-05-01), Pecorini et al.
patent: 6828410 (2004-12-01), Brunelle et al.
patent: 6924349 (2005-08-01), Lee et al.
patent: 1 386 937 (2004-02-01), None
patent: 49-117378 (1976-04-01), None
patent: 2000-178348 (2000-06-01), None
patent: 2000-178349 (2000-06-01), None
Derwent Abstract JP 51044199, Toyo Spinning Co. Ltd.
Duh,Journal of Applied Polymer Science,vol. 89, 2003, pp. 3188-3200.
Duh,Journal of Applied Polymer Science,vol. 83, 2002, pp. 1288-1304.
Duh,journal of Applied Polymer Science,vol. 81, 2001, pp. 1748-1761.
Collins et al,Macromolecules,vol. 33, 2000, pp. 2974-2980.
Paatero et al,Chemical Engineering Science,vol. 49, 1994, pp. 3601-3616.
Van Sickle and Garrity,Polymer Engineering and Science,vol. 70, 1993, pp. 163-164.
Siclovan,Chemical Bulletin of Polytechnic Institute Taian Vuia of Timisoara,vol. 35, 1990, pp. 127-140.
Chen and Chen,J. Poly. Sci. Part A: poly. Chem.,vol. 25, 1987, pp. 533-549.
Gregory and Watson,Polymer Engineering and Science,vol. 12, 1972, pp. 454-458.

Affiliated with

Also associated with

Rating

Process for the preparation of polyesters containing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of polyesters containing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of polyesters containing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3807824