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US 10,717,210 B2Granted
Release agent for vulcanized rubber molding
AssigneeDai-Ichi Kogyo Seiyaku Co., Ltd.
InventorsTakuya Horie, Toshikazu Nabeshima, Kazunori Nakagawa
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Abstract
A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an amine compound having 4-8 active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an amine compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.
Claims10
A release agent for vulcanized rubber molding comprising an alkylene oxide adduct (A) of an amine compound, wherein
- the alkylene oxide adduct (A) of an amine compound is prepared by substituting active hydrogen atoms of an amine compound having 4 to 8 active hydrogen atoms with alkylene oxide chains,
- the alkylene oxide adduct (A) of the amine compound has a number average molecular weight of 5,000 to 30,000 and contains from 50 to 95 mass % of an oxyethylene group,
- the alkylene oxide comprises ethylene oxide and propylene oxide, and
- a ratio of average number of moles of ethylene oxide/propylene oxide is from 3 to 15.
1 more element
Dependencies are inferred from the claim text.