Title:
ACRYLIC RUBBER HAVING EXCELLENT INJECTION MOLDABILITY AND BANBURY PROCESSABILITY
Document Type and Number:
WIPO Patent Application WO/2021/261213
Kind Code:
A1
Abstract:
Provided is an acrylic rubber having excellent injection moldability and Banbury processability. An acrylic rubber according to the present invention has at least one sort of reactive group selected from the group consisting of carboxyl groups, epoxy groups and chlorine atoms, wherein, the weight average molecular weight (Mw) is 1,000,000 to 5,000,000, the ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is in a range of 1.5 to 3, the gel content is 50 wt% or less, the ash content is from 0.0001 to 0.3 wt%, and the total content of sodium, sulfur, calcium, magnesium and phosphorus in the ash is 80 wt% or more.
Inventors:
MASUDA HIROFUMI (JP)
KAWANAKA TAKAFUMI (JP)
KAWANAKA TAKAFUMI (JP)
Application Number:
PCT/JP2021/021350
Publication Date:
December 30, 2021
Filing Date:
June 04, 2021
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F6/14; C08F220/10; C08F220/12; C08K3/012; C08K3/013; C08K5/00; C08L33/04; C08L33/08
Domestic Patent References:
| WO2019078167A1 | 2019-04-25 | |||
| WO2019208821A1 | 2019-10-31 | |||
| WO2018139466A1 | 2018-08-02 | |||
| WO2018117037A1 | 2018-06-28 | |||
| WO2018143101A1 | 2018-08-09 | |||
| WO2015147052A1 | 2015-10-01 |
Foreign References:
| JP2004143323A | 2004-05-20 | |||
| JP2004131654A | 2004-04-30 | |||
| US20050234207A1 | 2005-10-20 | |||
| JP2021017551A | 2021-02-15 |
Attorney, Agent or Firm:
ARIGA, Eiichiro et al. (JP)
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