AGENT FOR MAKING RUBBER CROSS-LINKED BODY HYDROPHILIC, RUBBER COMPOSITION, RUBBER CROSS-LINKED BODY, AND MOLDED PRODUCT

To provide an agent for making a rubber cross-linked body hydrophilic and a rubber composition capable of giving a rubber cross-linked body and a molded product having long-lasting hydrophilicity without a complicated treatment process, and a rubber cross-linked body and a rubber molded product made...

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Hauptverfasser: MATSUMOTO MAKOTO, FUJITA MASAYOSHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an agent for making a rubber cross-linked body hydrophilic and a rubber composition capable of giving a rubber cross-linked body and a molded product having long-lasting hydrophilicity without a complicated treatment process, and a rubber cross-linked body and a rubber molded product made thereof.SOLUTION: An agent for making a rubber cross-linked body hydrophilic contains a compound (A) having a radical-polymerizable group and a hydrophilic group (x). The hydrophilic group (x) is at least one kind selected from the group consisting of an anionic group, a salt of an anionic group, a salt of a cationic group, a hydroxy group, and an oxyethylene group. The anionic group is at least one kind of group selected from the group consisting of a carboxyl group, a sulfonate group, a sulfuric ester group, and a phosphoric ester group. The salt of a cationic group is at least one kind of group selected from the group consisting of a salt of a cation formed by bonding a proton to a primary amino group, a secondary amino group, and a tertiary amino group and a counter anion and a salt of a quaternary ammonium group and a counter anion.SELECTED DRAWING: None 【課題】複雑な処理工程を経ずに親水性の持続性の高いゴム架橋体及び成形体を得ることができるゴム架橋体用親水化剤及びゴム組成物並びにこれを用いたゴム架橋体及びゴム成形体を提供する。【解決手段】ラジカル重合性基及び親水性基(x)を有する化合物(A)を含有するゴム架橋体用親水化剤であって、前記親水性基(x)がアニオン性基、アニオン性基の塩、カチオン性基の塩、水酸基及びオキシエチレン基からなる群より選ばれる少なくとも1種であり、前記アニオン性基がカルボキシル基、スルホン酸基、硫酸エステル基及びリン酸エステル基からなる群より選ばれる少なくとも1種の基であり、前記カチオン性基の塩が第1級アミノ基、第2級アミノ基及び第3級アミノ基にプロトンが結合したカチオンと対アニオンとの塩、並びに第4級アンモニウム基と対アニオンとの塩からなる群より選ばれる少なくとも1種の基であるゴム架橋体用親水化剤。【選択図】なし