The invention relates to a window frame element produced by injection associated with shaping defining a main moulding direction for the parts of a hollow mould.

In mold-releasing, the resin foamed item is slid in the direction reverse to the sliding direction.

The mold release composition can give excellent mold releasability and durability of mold releasability (repeated mold releasability).

A core lifter assembly (12) comprises a combination of a core lifter ring (10) and a core lifter case (14).

The mold release agent has excellent mold releasability at a high temperature.

Also provided are a demolding method, and an imprinting device using the aforementioned demolding device and demolding method.

　This release film has a thermal shrinkage of at least 5% in the MD direction and in the TD direction at 120°C.

The release film contains substantially no silicon or a halogen, and is of light release.

It is preferred that this mold release film have, disposed on one side of the mold release layer, a cushion layer comprised of a thermoplastic resin different from that of the mold release layer.

The invention relates to release agents, particularly release agents that can be used for removing shaped bodies from shaping tools, and to the use of these release agents.

The mold release agent contains polytetrafluoroethylene.

The present invention relates to a polarizing-piece stripping machine and a method thereof for stripping a polarizing-piece.

A method of automatically de-molding a tread from a mold is provided utilizing an automatic de-molding apparatus.

The present invention provides a mold release film having both mold release properties and embedding performance.

Provided is a mold release performance-restoring solution useful for restoring decreased mold release performance when the mold release performance of a coating film containing silicone oil has decreased.