Mould release lubricant
AssigneeMalaysian Palm Oil Board
InventorsSoh Kheang Loh, Yuen May Choo
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Abstract
A mould release lubricant comprises of palm-derived base fluid and a specialty additive of satisfactory mould release and lubrication properties such as a tackifier, and if deemed necessary, other additives to improve the lubrication of the mould, is disclosed. The lubricant comprises at least one vegetable base fluid and/or its derivatives having good low temperature fluidity property, and at least one tackifier. The mould release lubricant disclosed in the present invention is used in construction industry (especially concrete construction) for lubrication during the process of detaching the moulded concrete from the mould (formwork) and prevents adhesion of freshly placed concrete to the forming surface.
Claims10
A process for the production of a mould release lubricant formulated to form concrete without staining a surface of the concrete, wherein the process comprises:
- blending or mixing
- a) a vegetable oil base fluid;
- and
- b) a tackifier additive included in a range between 7% to 10% by weight of the mould release lubricant,
- at a temperature of between 50° C. to 70° C. and at an atmospheric pressure of between 500 torr to 1000 torr;
- and
- applying the mould release lubricant as a barrier between a concrete mould and a concrete surface, the mould release lubricant enabling release of the concrete from the concrete mould without causing oil stains on the concrete surface.
Dependencies are inferred from the claim text.