Title:
ACRYLIC RUBBER BALE HAVING EXCELLENT BANBURY PROCESSABILITY AND INJECTION MOLDABILITY
Document Type and Number:
WIPO Patent Application WO/2021/261216
Kind Code:
A1
Abstract:
Provided is an ancrylic rubber bale having excellent Banbury processability and injection moldability. An acrylic rubber bale according to the present invention is composed of acrylic rubber having at least one sort of reactive group selected from the group consisting of carboxyl groups, epoxy groups and chlorine atoms, wherein, 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 of a methyl ethyl ketone-insoluble fraction is 50 wt% or less, the ash content is 0.3 wt% or less, 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/JP2021/021354
Publication Date:
December 30, 2021
Filing Date:
June 04, 2021
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F6/14; C08F220/10; C08K3/013; C08K3/04; C08K5/00; C08L33/04
Domestic Patent References:
| WO2018117037A1 | 2018-06-28 | |||
| WO2018143101A1 | 2018-08-09 | |||
| WO2019203321A1 | 2019-10-24 | |||
| WO2018079783A1 | 2018-05-03 | |||
| WO2021014739A1 | 2021-01-28 |
Foreign References:
| JP2004131654A | 2004-04-30 | |||
| JP2004143323A | 2004-05-20 | |||
| US20050234207A1 | 2005-10-20 | |||
| JP2021017552A | 2021-02-15 | |||
| JP2021017577A | 2021-02-15 | |||
| JP6791412B1 | 2020-11-25 |
Attorney, Agent or Firm:
ARIGA, Eiichiro et al. (JP)
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