Production process for product of dehydration reaction and...

Details Production process for product of dehydration reaction and... Production process for product of dehydration reaction and...

2006-05-23

2006-05-23

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C560S220000, C560S221000

Reexamination Certificate

active

07049462

ABSTRACT:
It is an object of the present invention to provide a production method of a dehydration reaction product by which the occurrence of troubles in the production step or the degradation in performance characteristics or quality of various chemical products can be suppressed to a satisfactory extent.A production method of a dehydration reaction productwhich comprises a dehydration reaction step of subjecting a reaction solution containing a polymerizable compound to the dehydration reaction,said dehydration reaction step comprising using a dehydration reaction apparatus,said dehydration reaction apparatus comprising a reaction vessel, a condenser and a connecting pipe joining said reaction vessel with said condenser andsatisfying the requirement:in-line-formulae description="In-line Formulae" end="lead"?0.05<(B3/A)<35in-line-formulae description="In-line Formulae" end="tail"?where A is a capacity (m3) of said reaction vessel and B is a total length (m) of said connecting pipe on the horizontal basis.

REFERENCES:
patent: 6265495 (2001-07-01), Hirata et al.
patent: 0 989 109 (2000-03-01), None
patent: WO 98/56748 (1998-12-01), None
patent: WO 00/64850 (2000-11-01), None

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