Title:
ACID-ABSORBING AND SWELLING RESIN
Document Type and Number:
Japanese Patent JPH0350209
Kind Code:
A
Abstract:
PURPOSE:To obtain an acid-absorbing and swelling resin which can be stably used in an acid solution for a long time by using a resin having a structure formed by combining two specified vinyl monomers. CONSTITUTION:This acid-absorbing and swelling resin is composed of 30-95wt.% units of at least one vinyl monomer of formula l [wherein R1 is a hydrogen atom or a methyl; and X is COOR2 (wherein R2 is a hydrogen atom or a 1-4C alkyl), formula II or CN] and 5-70wt.% units of at least one vinyl monomer of formula III [wherein R3 is a hydrogen atom or a methyl; R4 and R5 which may be the same or different are each a 1-4C alkyl; Y is O-CnH2n or NH-CnH2n (wherein (n) is an integer of 2-5)]. It cain be obtained by polymerizing the above monomers by using a radical generator such as a peroxide as a polymerization initiator according to a general polymerization process.
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Inventors:
CHINUKI TAKASHI
SAKURAI MASA
ASAO KOICHIRO
SAKURAI MASA
ASAO KOICHIRO
Application Number:
JP18563489A
Publication Date:
March 04, 1991
Filing Date:
July 17, 1989
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
C08F212/08; C08F20/34; C08F20/52; C08F212/00; C08F220/10; C08F220/12; C08F220/34; C08F220/42; C08F220/48; C08F220/60; (IPC1-7): C08F212/08; C08F220/12; C08F220/34; C08F220/48; C08F220/60
Attorney, Agent or Firm:
Mitsuhiro Moroishi (1 person outside)
Next Patent: ALTERNATING COPOLYMER, PREPARATION AND USE THEREOF