Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced flexural properties, which correlates to low composite backface signature. The composites are useful for the production of hard armor articles, including helmet armor.

Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced flexural properties, which correlates to low composite backface signature. The composites are useful for the production of hard armor articles, including helmet armor.

A method for manufacturing impregnated fiber bundle includes: a step of feeding material including feeding at least one fiber bundle to a feeding wheel assembly; a step of resin molding including feeding resin to the fiber bundle in a high pressure manner to make the resin infiltrate the fiber bundle and to form an outer resin layer on the outer surface of the fiber bundle, so as to make the fiber bundle become a resin impregnated fiber bundle; a step of semi-cured molding including semi curing the resin inside and outside the resin impregnated fiber bundle by controlling temperature and pressure; and a step of reeling including reeling up the resin impregnated fiber bundle which is to be woven into a fabric.

A method and system for dispensing a material through a delivery apparatus is provided. The material initially comprises or is manipulated to comprise a low viscosity. The material either can comprise a curable material or can comprise initiators, which can be activated to raise the viscosity at a later time and position. The low viscosity material is moved through the delivery apparatus for a relatively long distance using low energy. Upon nearing an end use application, the material and/or initiators can be activated by a curing agent, such as a light or heat source, such that the viscosity of the material be raised prior to the end use application thereof. Therefore, the present invention provides a method and system for moving a material normally having a higher viscosity a long distance requiring lower energy and pressure.

A method and system for dispensing a material through a delivery apparatus is provided. The material initially comprises or is manipulated to comprise a low viscosity. The material either can comprise a curable material or can comprise initiators, which can be activated to raise the viscosity at a later time and position. The low viscosity material is moved through the delivery apparatus for a relatively long distance using low energy. Upon nearing an end use application, the material and/or initiators can be activated by a curing agent, such as a light or heat source, such that the viscosity of the material be raised prior to the end use application thereof. Therefore, the present invention provides a method and system for moving a material normally having a higher viscosity a long distance requiring lower energy and pressure.

Provided is an apparatus for heating plastic preforms with a transport device which is suitable and intended for transporting the plastic preforms along a predetermined transport path, with at least one stationary arrange heating device which heats the plastic preforms transported along the transport path, wherein the heating device has at least one heating element which emits radiation which heats the plastic preforms and at least one focusing device which focuses the radiation emitted by the heating element onto predetermined regions of the plastic preforms to be heated, wherein a position of this focusing device is changeable.

Provided is an apparatus for heating plastic preforms with a transport device which is suitable and intended for transporting the plastic preforms along a predetermined transport path, with at least one stationary arrange heating device which heats the plastic preforms transported along the transport path, wherein the heating device has at least one heating element which emits radiation which heats the plastic preforms and at least one focusing device which focuses the radiation emitted by the heating element onto predetermined regions of the plastic preforms to be heated, wherein a position of this focusing device is changeable.

Disclosed is a charging barrel of an infrared dehumidification, crystallization and drying all-in-one machine and a drying machine. The cross section of the charging barrel is in the shape of a polygon, and the side number of the polygon is larger than the side number of a pentagon; an opening is formed in one end, as a feeding end, of the charging barrel; each plate surface forming the polygonal charging barrel comprises a middle plate part, as well as a first closing-up plate part and a second closing-up plate part which are arranged at the two ends of the middle plate part; the first closing-up plate part and the second closing-up plate part form obtuse angles with the middle plate part and are closed up towards the middle; a discharge hole is formed in the side wall of the charging barrel

An injection molding method uses a die with a cavity into which molten resin is to be injected to fill the cavity. The die has a shape that causes the molten resin injected into the cavity to branch and merge. The injection molding method includes providing bubbles into the molten resin before the molten resin is injected, generating fine bubbles with the provided bubbles before the molten resin is injected, injecting the molten resin containing the fine bubbles, and bursting the fine bubbles of the injected molten resin containing the fine bubbles in a merging location where the molten resin merges.

An injection molding method uses a die with a cavity into which molten resin is to be injected to fill the cavity. The die has a shape that causes the molten resin injected into the cavity to branch and merge. The injection molding method includes providing bubbles into the molten resin before the molten resin is injected, generating fine bubbles with the provided bubbles before the molten resin is injected, injecting the molten resin containing the fine bubbles, and bursting the fine bubbles of the injected molten resin containing the fine bubbles in a merging location where the molten resin merges.