ACRYLIC RUBBER HAVING EXCELLENT WATER RESISTANCE

Title:

ACRYLIC RUBBER HAVING EXCELLENT WATER RESISTANCE

Document Type and Number:

WIPO Patent Application WO/2021/014788

Kind Code:

A1

Abstract:

Provided are an acrylic rubber having excellent water resistance and a method for producing the same. An acrylic rubber including 70-99.9 wt% of bonding units derived from a (meth)acrylic acid ester, 0.1-10 wt% of bonding units derived from a crosslinkable monomer, and, if necessary, 0-20 wt% of bonding units derived from another monomer, wherein the ash content is 0.5 wt% or lower, the total amount of magnesium and phosphorus in the ash is 30 wt% or higher and the weight ratio ([Mg]/[P]) of magnesium and phosphorus is 0.4-2.5, and the Mooney viscosity (ML1+4, 100°C) is 10-150, has especially excellent water resistance, and a crosslinked rubber product using the same also has good properties.

Inventors:

MASUDA HIROFUMI (JP)
KAWANAKA TAKAFUMI (JP)

Application Number:

PCT/JP2020/022311

Publication Date:

January 28, 2021

Filing Date:

June 05, 2020

Export Citation:

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Assignee:

ZEON CORP (JP)

International Classes:

C08F6/22; C08F2/26; C08F220/18; C08K3/013; C08L33/08

Domestic Patent References:

WO2018079783A1	2018-05-03
WO2013133358A1	2013-09-12
WO2018079783A1	2018-05-03
WO2018101146A1	2018-06-07

Foreign References:

JP3949975B2	2007-07-25
JP2004131654A	2004-04-30
JP2004143323A	2004-05-20
JPS61108629A	1986-05-27
US20110123748A1	2011-05-26
JP2012224765A	2012-11-15
JP2015105358A	2015-06-08
JPS50156559A	1975-12-17
JP3949975B2	2007-07-25

Other References: