Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1999-03-29
2000-07-25
Truong, Duc
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528363, 528486, 528503, 525419, 525420, C08G 6910
Patent
active
060937890
ABSTRACT:
The invention relates to a process for preparing polymers having repeating succinyl units, especially polysuccinimide and polyaspartic acid, with increased M.sub.W values at non-increased, moderate synthesis temperatures and at the same time without increased polycondensation times, using maleic anhydride and ammonium carbonate plus a catalyst.
REFERENCES:
patent: 4839461 (1989-06-01), Boehmke
patent: 5142062 (1992-08-01), Knebel et al.
patent: 5288783 (1994-02-01), Wood
patent: 5296578 (1994-03-01), Koskan et al.
patent: 5371180 (1994-12-01), Groth et al.
patent: 5478918 (1995-12-01), Koskan et al.
patent: 5543490 (1996-08-01), Groth et al.
patent: 5747635 (1998-05-01), Kroner et al.
patent: 5919894 (1999-07-01), Schubart
Ullmann's Encyclopedia of Industrial Chemistry (month unavailable) 1982, vol. B2, Stirring, Chapter 25-pp. 1-33, Marko Zlokarnik, Helmut Judat, Bayer AG. Leverkusen, Federal Republic of Germany.
Ullmann's Encyclopedia of Industrial Chemistry (month unavailable) 198s, vol. B4, Continuous Mixing of Fluids, pp. 561-586, Hans-Jurgen Henzler, Bayer AG, Wuppertal, Federal Republic of Germany.
Perry's Chemical Engineers' Handbook, 6th Edition (month unavailable) 1984, pp. 21-61, Stagewise Equipment: Mixer-Settlers.
M.H. Pahl and Edgar Muschelknautz, Ensatz und Auslegung statischer Mischer, Chem. Ing. Tech. 51, (month unavailable) 1979, pp. 347-364.
Manfred H. Pahl and Edgar Muschelknautz, Statische Mischer und ihre Anwendung, Chem. Ing. Tech, 52 (month unavailable) 1980, Nr. 4 S. 285-291.
Schubart Rudiger
Weider Richard
Bayer Aktiengellschaft
Gil Joseph C.
Truong Duc
Van Eyl Diderico
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