A method for producing a curved substrate panel with a hologram includes producing a curved substrate panel from plastic by forming, injection moulding or injection-compression molding between a first mold half, which defines a predetermined desired geometry of a substrate surface, and a second mold half removing the first mold half from the second mold half and applying a holographic master to a surface of the first mold half, or of a further mold half fixing the first mold half or further mold half on the second mold half such that an empty gap of a predetermined constant thickness remains between the holographic master and the substrate surface, and filling this gap with a hologram-receiving material; and exposing the hologram-receiving layer formed between the substrate surface and the holographic master with a coherent light for forming a hologram defined by the holographic master.

A method for injection molding of a plus power lens element comprises injecting a melt of thermoplastic material comprising at least one UV absorber at a temperature higher than a glass transition temperature (Tg) of the thermoplastic material in an initial molding cavity delimited by two facing mold inserts. During the injecting, the two facing mold inserts are moved toward one another to define a final molding cavity whose volume is less than that of the initial molding cavity. After cooling and opening of the mold cavity, the plus power lens element is recovered. One of the two facing mold inserts comprises a flat surface facing the initial molding cavity, thereby to form a flat surface on one side of the plus power lens element, and the other of the two facing mold inserts comprises a concave surface facing the initial molding cavity, thereby to form a convex surface on an opposite side of the plus power lens element.

A method of the invention which manufactures a molded product by injection molding using injection molding die including a pair of dies includes: injecting and filling the resin in a molten state in a state where a temperature of the injection molding die is higher than a deformation temperature of resin to be injected and filled; reducing a volume of a cavity due to volume contraction of the resin when cooling thereof; and carrying out molding while maintaining a state where the resin is brought into close contact with both cavity surfaces of the pair of the dies.

Method of making golf ball comprising aligning thermoformed depressions with dimpled mold cups and applying sufficient heat and suction to the thermoformed depressions without exposing any preselected subassembly to the heat and suction to soften the polymeric material of each thermoformed depression and draw air outward from a volume located between an inner surface of the dimpled mold cup and an outer surface of the thermoformed depression to form a thermoformed pre-form half-shell having an outer surface with the size, shape and contour of the inner surface of the dimpled mold cup(s) and an inner surface with the size, shape and contour of the outer surface of a preselected subassembly. Afterwards, a preselected subassembly is loaded between a pair of thermoformed pre-form half-shells and molded under sufficient short-term heat and suction to form the golf ball. The thickness of each thermoformed depression and thermoformed pre-form half-shell may be tapered.

A method for injection molding of a plus power lens element comprises injecting a melt of thermoplastic material comprising at least one UV absorber at a temperature higher than a glass transition temperature (Tg) of the thermoplastic material in an initial molding cavity delimited by two facing mold inserts. During the injecting, the two facing mold inserts are moved toward one another to define a final molding cavity whose volume is less than that of the initial molding cavity. After cooling and opening of the mold cavity, the plus power lens element is recovered. One of the two facing mold inserts comprises a flat surface facing the initial molding cavity, thereby to form a flat surface on one side of the plus power lens element, and the other of the two facing mold inserts comprises a concave surface facing the initial molding cavity, thereby to form a convex surface on an opposite side of the plus power lens element.

Method of making golf ball comprising aligning thermoformed depressions with dimpled mold cups and applying sufficient heat and suction to the thermoformed depressions without exposing any preselected subassembly to the heat and suction to soften the polymeric material of each thermoformed depression and draw air outward from a volume located between an inner surface of the dimpled mold cup and an outer surface of the thermoformed depression to form a thermoformed pre-form half-shell having an outer surface with the size, shape and contour of the inner surface of the dimpled mold cup(s) and an inner surface with the size, shape and contour of the outer surface of a preselected subassembly. Afterwards, a preselected subassembly is loaded between a pair of thermoformed pre-form half-shells and molded under sufficient short-term heat and suction to form the golf ball. The thickness of each thermoformed depression and thermoformed pre-form half-shell may be tapered.

Mold clamping conditions, including a predetermined mold gap, a predetermined mold clamping force, a predetermined back pressure for a movable mold, a predetermined mold closing pressure, and a predetermined mold closing pressure adjustment condition associated with the compression state of a molding material, are set beforehand. At the time of molding, an injection filling process for causing the injection device to inject and fill the molding material into a mold of a mold clamping device for which the mold clamping conditions have been set is performed, and, after completion of the injection filling process, a compression process is performed on the basis of the mold clamping conditions including the mold closing pressure adjustment condition.

An in-mold vibratile injection compression molding method and molding apparatus thereof are described. While performing a filling stage, a first piezoelectric actuator and a second piezoelectric actuator are use to vibrate the molding material along at least two directions for precisely filling the molding material into the micro-structure by adjusting the filling flow velocity of the molding material associated with the proper molding material temperature and by maintaining a molding material temperature of a skin solidified layer in the cavity between a glass transition temperature and a melting temperature in order to avoid the form error, to increase the groove filling rate and to improve the residual stress.

An injection molding machine including an injection device which performs an injection filling process of injecting and filling a molding material into a mold composed of a movable mold and a stationary mold and having a predetermined mold gap therebetween, a mold clamping device which performs a compression process of applying a predetermined mold closing pressure to the mold into which the molding material has been injected and filled, thereby compressing the molding material, and a molding machine controller which controls the injection device and the mold clamping device, wherein the molding machine controller is configured to allow setting of mold clamping conditions for the clamping device, the mold clamping conditions including a predetermined mold gap between the movable mold and the stationary mold, a predetermined mold clamping force, a predetermined back pressure for the movable mold, a predetermined mold closing pressure, and a predetermined mold closing pressure adjustment condition associated with a compression state of the molding material, the injection device performs the injection filling process of injecting and filling the molding material into the mold of the mold clamping device for which the mold clamping conditions have been set, and the mold clamping device performs the compression process for the mold, into which the molding material has been injected and filled, on the basis of the mold clamping conditions including the mold closing pressure adjustment condition.