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US 5,510,407 AGranted
Mold release agent composition
AssigneeDaikin Industries, Ltd.
InventorsMasayuki Yamana, Seiji Takubo
Life of this patent
Estimating the term…
Abstract
A mold release agent composition which contains A) 10 to 95% by weight of a copolymer of a polyfluoroalkyl acrylate or methacrylate ester having a polyfluoroalkyl group having 1 to 20 carbon atoms and a vinyl compound having an alkyl group having 8 to 30 carbon atoms, and B) 90 to 5% by weight of a silicone, has sufficient releasability, has an only slightly amount of the migration to a shaped article and gives no adverse effect on fabricability of a shaped article surface.
Claims14
A mold release agent composition comprising:
- A) 12.5 to 95% by weight of a copolymer of a polyfluoroalkyl acrylate or methacrylate ester having a polyfluoroalkyl group having 1 to 20 carbon atoms and a vinyl compound having an alkyl group having 8 to 30 carbon atoms, wherein the copolymer comprises 20 to 85% by weight of the perfluoroalkyl acrylate or methacrylate ester and 80 to 15% by weight of the vinyl compound, and
- B) 87.5 to 5% by weight of a silicone.
A mold release agent composition consisting essentially of:
- A) 12.5 to 95% by weight of a copolymer of a polyfluoroalkyl acrylate or methacrylate ester having a polyfluoroalkyl group having 1 to 20 carbon atoms and a vinyl compound having an alkyl group having 8 to 30 carbon atoms, wherein the copolymer comprises 20 to 85% by weight of the perfluoroalkyl acrylate or methacrylate ester and 80 to 15% by weight of the vinyl compound, and
- B) 87.5 to 5% by weight of a silicone.
Dependencies are inferred from the claim text.