Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-10-03
2006-10-03
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C264S176100, C264S219000, C422S131000, C528S272000
Reexamination Certificate
active
07115701
ABSTRACT:
The invention relates to a method for producing high-molecular polyester such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polynaphthalene terephthalate (PEN), polytrimethylene terephthalate (PTT) and/or polyester of other dicarboxylic acids and diols, including the copolymers of the same. The invention also relates to a device for carrying out said method, the device being a single-stage tower reactor by which means a method involving only two reactors is carried out for the entire process.
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Otto, Brigitta Dr., Streng, Michael; “PET—neue Entwicklungen und neue Markte”, KunststoffForshung, May 2001, pp. 24-25and English Translation.
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Atlas Christian
Hagen Rainer
Hille Thomas
Schultz Van Endert Eike
Thiele Ulrich
Barnes & Thornburg LLP
Boykin Terressa
Inventa-Fischer GmbH & Co. KG
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