Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2006-08-22
2006-08-22
Zucker, Paul A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S218000, C562S598000, C562S600000
Reexamination Certificate
active
07094921
ABSTRACT:
There is provided a method for storing (meth)acrylic acid or (meth)acrylic esters in a storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, which is capable of storing the (meth)acrylic acid or (meth)acrylic esters for a long period of time. According to the method of the present invention, upon storing the (meth)acrylic acid or (meth)acrylic esters in the storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, a concentration of suspended particulate matters contained in a gas phase portion of the storage tank is controlled to not more than 0.01 mg/m3.
REFERENCES:
patent: 2003/0205451 (2003-11-01), Briegel et al.
patent: 2003-231661 (2003-08-01), None
Ogawa Yasushi
Suzuki Yoshiro
Takasaki Kenji
Yada Shuhei
Mitsubishi Chemical Corporation
Nixon & Vanderhye P.C.
Zucker Paul A.
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