Patent EP0244884A1 successfully refreshed from Google Patents.
EP0244884A1
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EP
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Method of providing a mould with a release layer
Assignee: Koninklijke Philips NV
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Filing: 1987-03-03
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Granted: —
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Expires: 2007-03-03
Abstract
Abstract A method of providing a mould 1 (Figure 1) with a release layer, in which a hydrophilic, inorganic surface 2, 4 of the mould is treated with a silane compound of formula 1 of the formula sheet under anhydrous conditions.
Inventors
- 👤 Johannes Jacobus Ponjèe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 08:27
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29C33/64; B29C33/58; B82; B82Y; B82Y30/00; B29L; B29L2011/00; B29L2011/0016
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
A method of rendering a hydrophilic, inorganic surface of a mould suitable for the release of synthetic resin products, characterized in that the surface is treated under anhydrous conditions with a silane compound which corresponds to formula 1 of the formula sheet, where m = 1, 2 or 3, R is a linear or branched alkyl group or alkoxyalkyl- group which contains 1-20 carbon atoms and which may be partly substituted with fluorine, and X is a chlorine atom, a methoxy group, ethoxy group, amino group, which may be substituted with one or two methyl and/or ethyl groups or an imidazole group, where a monolayer of the silane compound is chemically linked to the hydrophilic, inorganic surface via oxygen bridges.
Claim 2
Independent Claim
120 words
A method of rendering a hydrophilic, inorganic surface of a mould suitable for the release of synthetic resin products, characterized in that the surface is treated under anhydrous conditions with a silane compound which corresponds to formula 1 of the formula sheet, where m = 1, 2 or 3, R is a linear or branched alkyl group or alkoxyalkyl- group which contains 1-20 carbon atoms and which may be partly substituted with fluorine, and X is a chlorine atom, a methoxy group, ethoxy group, amino group, which may be substituted with one or two methyl and/or ethyl groups or an imidazole group, where a monolayer of the silane compound is chemically linked to the hydrophilic, inorganic surface via oxygen bridges.
Claim 3
Dependent Claim
27 words
A method as claimed in Claim 1, characterized in that the hydrophilic, inorganic surface is treated with the vapour of the silane compound at a reduced pressure.
Claim 4
Dependent Claim
28 words
A method as claimed in Claim 1, characterized in that the hydrophilic, inorganic surface is treated with a solution of the silane compound in an anhydrous organic solvent.
Claim 5
Dependent Claim
52 words
- A method as claimed in Claim 1, 2 or 3, characterized in that the hydrophilic, inorganic surface is treated with a silane compound of formula 1, where R is a branched or unbranched fluoroalkyl group or fluoroalkoxy-alkyl group or a branched or unbranched alkyl group having at least 10 carbon atoms.
Claim 6
Dependent Claim
33 words
A method as claimed in Claim 4, characterized in that the hydrophilic, inorganic surface is treated with (heptadecafluorine 1,1,2,2- tetrahydrodecyl)-1- triethoxy silane, (heptadecafluorine 1,1,2,2- tetrahydrodecyl)-1-trichloro silane, (heptadecafluorine 1,1,2,2-tetrahydrodecyl) -1- dimethylchlorosilane or with n-octadecyltrichlorosilane.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
WO1985002205A1
Cited
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