Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1995-12-07
1998-01-13
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528272, 528302, 5283082, 5283086, 528481, 528492, 528503, C08F 2000
Patent
active
057081247
ABSTRACT:
Process for the solid state polycondensation of polyester resins, where an inert gas is circulating in a moving bed of polymer at a temperature between 180.degree. and 230.degree. C., characterized by the fact that the ratio by weight between the gas rate of flow per hour and that one of the discharged polymer is lower than 0.6.
REFERENCES:
patent: 4064112 (1977-12-01), Rothe et al.
patent: 4161578 (1979-07-01), Herron
patent: 4226973 (1980-10-01), Malo et al.
patent: 4532319 (1985-07-01), Wendling et al.
patent: 4691562 (1987-09-01), Abthoff et al.
patent: 4733358 (1988-03-01), Abthoff et al.
patent: 5119570 (1992-06-01), Russemeyer et al.
patent: 5243020 (1993-09-01), Ghisolfi
patent: 5334669 (1994-08-01), Ghisolfi
patent: 5338808 (1994-08-01), Ghisolfi
Abstract: WPI/Derwent, Section Ch, Week 8711, Derwent Publications Ltd., London, GB; Class E36, AN 87-073107 & DD,A,240 672 (VEB Leuna-Werk Ulbricht), Nov. 12, 1986.
Derwent abstract of DE 3 628 572 in English, Mar. 1988.
Al Ghatta Hussain Ali Kashif
Giordano Dario
Acquah Samuel A.
Manzo Edward D.
Murphy Mark J.
Ringsred Ted K.
Sinco Engineering S.p.A.
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