Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1993-03-08
1994-08-16
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526240, 5263171, C08F 200, C08F13004, C08F12006
Patent
active
053388100
ABSTRACT:
A method for the production of an acrylate by the neutralization reaction of acrylic acid and a basic substance, comprising sequentially (A) a step of supplying acrylic acid and said basic substance to water thereby subjecting them to a neutralization reaction while constantly retaining the neutralization ratio of acrylic acid within the neutralization reaction system in the range of 75 to 100 mol %, (B) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % by supplying said basic substance to said neutralization reaction system, (C) a step of retaining the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % for a period in the range of 1 to 120 minutes thereby allowing the neutralization reaction product to age, and (D) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 20 to 100 mol % by supplying acrylic acid to said neutralization reaction system, and a method for the production of an acrylate-containing polymer using the acrylate.
REFERENCES:
patent: 4525527 (1985-06-01), Takeda et al.
Fujiwara Teruaki
Hatsuda Takumi
Irie Yoshio
Kajikawa Katsuhiro
Saga Jyunichi
Behr Omri M.
Cheng Wu C.
McDonald Matthew J.
Nippon Shokubai Kagaku Kogyo & Co., Ltd.
Schofer Joseph L.
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