Title:
エチレン系不飽和モノマーのポリマーへのグラフト
Document Type and Number:
Japanese Patent JP4516213
Kind Code:
B2
Abstract:
The present invention relates to a process for the preparation of a grafted polymer wherein in a first step A) a stable nitroxyl radical is grafted onto a polymer, which step comprises heating a polymer and a nitroxyl-ether containing a group (=NO-X), wherein X is selected such, that cleavage of the O-X bond occurs and a radical X, is formed at about the melting temperature of the polymer; and in a second step B) the grafted polymer of step A) is heated in the presence of an ethylenically unsaturated monomer or oligomer to a temperature at which cleavage of the nitroxyl-polymer bond occurs and polymerization of the ethylenically unsaturated monomer or oligomer is initiated at the polymer radical; maintaining said temperature for further polymerization and afterwards cooling down the mixture to a temperature below 60° C. Further subjects are grafted thermoplastic polymers prepared by said process, the intermediate polymeric radical initiator, the use of the polymeric radical initiator and the use of NO-ethers for grafting thermoplastic polymers.
Inventors:
Michael ross
Rudolph Faendner
Peter Nesbadova
Rudolph Faendner
Peter Nesbadova
Application Number:
JP2000568890A
Publication Date:
August 04, 2010
Filing Date:
August 23, 1999
Export Citation:
Assignee:
Ciba Holding Inc.
International Classes:
C08F4/04; C08F291/00; C08F2/38; C08F2/44; C08F4/00; C08F4/32; C08F255/00; C08F255/04; C08F255/06; C08F257/02; C08F279/02; C08F285/00; C08F287/00; C08F293/00; C09J151/00
Domestic Patent References:
| JP60089452A | ||||
| JP11147912A | ||||
| JP2002524589A |
Foreign References:
| WO1997036944A1 |
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Tsutomu Kato
Toshio Nakamura
Miyazaki Yoshio
Tsutomu Kato