| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a release agent which has mold release performance equivalent to that of a release agent containing a compound having≥8C perfluoroalkyl group as an effective component and contains polyfluoroalkyl phosphonate ester having≤6C perfluoroalkyl group said to be low in bioaccumulation potential as an effective component. <P>SOLUTION: The release agent contains polyfluoroalkyl phosphonic acid expressed by the following general formula: C<SB>n</SB>F<SB>2n+1</SB>(CH<SB>2</SB>CF<SB>2</SB>)<SB>a</SB>(CF<SB>2</SB>CF<SB>2</SB>)<SB>b</SB>(CH<SB>2</SB>CH<SB>2</SB>)<SB>c</SB>P(O)(OH)<SB>2</SB>(wherein, n is an integer of 1-6, a is an integer of 1-4, b is an integer of 1-3, and c is an integer of 1-3) or its salt and polyfluoroalkyl phosphonate oxyalkylene ester expressed by the following general formula: C<SB>n</SB>F<SB>2n+1</SB>(CH<SB>2</SB>CF<SB>2</SB>)<SB>a</SB>(CF<SB>2</SB>CF<SB>2</SB>)<SB>b</SB>(CH<SB>2</SB>CH<SB>2</SB>)<SB>c</SB>P(O)[O(RO)<SB>m</SB>R']<SB>d</SB>(OH)<SB>2-d</SB>(wherein, RO is 2-6C straight-chain or branched oxyalkylene group, R' is hydrogen atom or 1-20C alkyl group or aralkyl group, n is an integer of 1-6, a is an integer of 1-4, b is an integer of 1-3, c is an integer of 1-3, m is an integer of 1-100, and d is 1 or 2), as an effective component. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
