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US 4,118,235 AGranted
Mold release agent
AssigneeDaikin Kogyo Co., Ltd.
InventorsNorio Horiuchi, Shin-ichi-ro Kai, Masayoshi Shinjo
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Abstract
A composition in the form of a solution or dispersion which includes a perfluoroalkyl group-containing phosphoric acid ester of the formula (R.sub.f XO).sub.n PO(OH).sub.3-n (wherein R.sub.f represents a perfluoroalkyl group containing from 4 to 20 carbons, X represents a divalent organic residue and n is an integer from 1 to 3) and an additive which is a surface active agent, a silicone oil, a highly fluorinated organic compound, a wax or a mixture thereof, the composition being useful for imparting mold releasing properties to a mold.
Claims11
A mold release composition comprising
- a. a perfluoroalkyl group-containing phosphoric acid ester represented by the formula:
- (R.sub.f YC.sub.q H.sub.2q O).sub.n PO(OH).sub.3-n
- wherein:
- R.sub.f represents a perfluoroalkyl having 4 to 20 carbon atoms;
- Y is CH.sub.2 CH(Z) where Z is H, CH.sub.3, C.sub.2 H.sub.5, Cl or OR where R is H, CH.sub.3, C.sub.2 H.sub.5, COCH.sub.3, COC.sub.2 H.sub.5 or CH.sub.2 COOH or a salt of CH.sub.2 COOH, or SO.sub.2 N(R') where R' is an alkyl group having 1 to 4 carbon atoms:
- q is an integer of 0 to 4 when Y is CH.sub.2 CH(Z) or 1 tO 4 when Y is SO.sub.2 N(R');
- and
- n is an integer of 1 to 3, or a salt thereof;
- b. a non-curable polysiloxane having a boiling point of at least 100.degree.C and a melting point not higher than 150.degree.C or a highly fluorinated organic compound, said highly fluorinated organic compound being a liquid or solid at room temperature and having a melting point below 150.degree.C., and
- c. a liquid carrier.
7 more elements
Dependencies are inferred from the claim text.