Emulsion and mold-releasing agent using the same

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United States of America Patent

PATENT NO 9610634
APP PUB NO 20120178075A1
SERIAL NO

13496581

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is an emulsion formed using, as an emulsifier, 0.01 to 30 parts by weight of a perfluoroalkylethyl phosphonic acid salt represented by the general formula: CnF2n+1CH2CH2P(O)(OM1)(OM2) [III] (M1: a hydrogen atom, ammonium salt, or organic amine salt, M2: an ammonium salt or organic amine salt, n: 1 to 6), based on 100 parts by weight of a perfluoropolyether oil represented by the general formula: RfO(C3F6O)p(C2F4O)q(CF2O)rRf′ [I] (Rf and Rf′: C1-C5 perfluoroalkyl groups, p+q+r: 2 to 200) or the general formula: F(CF2CF2CF2O)nCF2CF3 [II] (n: 2 to 100), or a perfluorocarbon compound. In spite of using, as an emulsifier, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, the emulsion exhibits excellent emulsification stability, and therefore can be effectively used as a surface-treating agent, such as a mold-releasing agent.

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Patent Owner(s)

Patent OwnerAddress
UNIMATEC CO LTD12-15 SHIBADAIMON 1-CHOME MINATO-KU TOKYO 1050012

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaneumi, Yoshiyama Ibaraki, JP 20 81
Sato, Katsuyuki Ibaraki, JP 94 1371

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