Title:
反応性が異なるモノマーの重合
Document Type and Number:
Japanese Patent JP4671299
Kind Code:
B2
Abstract:
There is provided a process for producing a polymer comprising the steps of
(a) adding at least one low-reactivity monomer to a reaction vessel with a decreasing rate of addition,
(b) adding at least one high-reactivity monomer to said reaction vessel,
(i) wherein less than 1% of all of said high-reactivity monomers, by weight of high reactivity monomers, based on the weight of all said high-reactivity monomers, is added to said reaction vessel before the beginning of said step (a), and
(ii) wherein at least half of all of said high-reactivity monomers, by weight of high reactivity monomers, based on the weight of all of said high-reactivity monomers, is added to said reaction vessel before the completion of said step (a), and
(c) adding at least one chain regulator to said reaction vessel prior to the completion of said step (a),
wherein said steps (a), (b), and (c) are performed while conditions in said reaction vessel will cause polymerization of said low-reactivity monomer and said high-reactivity monomer.
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Inventors:
Marian Creamer
Joseph Manna
Joseph Manna
Application Number:
JP2007051274A
Publication Date:
April 13, 2011
Filing Date:
March 01, 2007
Export Citation:
Assignee:
ROHM AND HAAS COMPANY
International Classes:
C08F2/00; C08F220/06; C08F226/04
Domestic Patent References:
| JP10237135A | ||||
| JP10237113A | ||||
| JP2001201856A |
Attorney, Agent or Firm:
Patent Business Corporation Sender International Patent Office