Title:
METHOD FOR PRODUCING WATER-SOLUBLE NON-TURBID COPOLYMER OF AT LEAST ONE KIND OF WATER-SOLUBLE N-VINYL LACTAM AND AT LEAST ONE KIND OF HYDROPHOBIC COMONOMER
Document Type and Number:
Japanese Patent JP2007169651
Kind Code:
A
Abstract:
To provide a method for producing a water-soluble copolymer of at least one kind of water-soluble N-vinyl lactam and at least one kind of hydrophobic comonomer by the radical polymerization of the monomers in an organic solvent.
A vinyl lactam copolymer is produced by the radical polymerization of at least one kind of water-soluble N-vinyl lactam and at least one kind of hydrophobic comonomer in an organic solvent in the presence of an initiator under refluxing condition. In the above method, at least 10 mol% of the N-vinyl lactam is added to the polymerization mixture when at least 90 mol% of the hydrophobic monomer is completely reacted.
Inventors:
DOBRAWA RAINER
WIDMAIER RALF
EBERHARD SCHUPP
KLAUS SCHNELL
KARL-HERMANN STRUBE
NIEBERLE JUERGEN
POTZOLLI BERND DE
ANDREAS GRUBER
DIEING REINHOLD DR
WIDMAIER RALF
EBERHARD SCHUPP
KLAUS SCHNELL
KARL-HERMANN STRUBE
NIEBERLE JUERGEN
POTZOLLI BERND DE
ANDREAS GRUBER
DIEING REINHOLD DR
Application Number:
JP2006345255A
Publication Date:
July 05, 2007
Filing Date:
December 22, 2006
Export Citation:
Assignee:
BASF AG
International Classes:
C08F2/00; C08F226/06
Attorney, Agent or Firm:
Yusuke Hiraki
Ishii Teiji
Satoshi Fujita
Ishii Teiji
Satoshi Fujita