Abstract: A system for forming a deep drawn helmet and method therefor are disclosed. The system includes a forming draw ring and a non-forming draw ring and supports a prepreg stack between a forming aperture of the forming draw ring and a non-forming aperture of the non-forming draw ring. The system clamps a flange portion of the prepreg stack between a contact surface of the forming draw ring and a contact surface of the non-forming draw ring, which forms a clamped assembly of the rings and the prepreg stack. The system then forms a deep drawn helmet preform from the prepreg stack of the clamped assembly. The same system or a different forming system then consolidates one or more of the preforms into a final deep drawn helmet. The system can control sliding of the flange during forming of the helmet preform without reducing the flange clamping force.

Abstract: A system for forming a deep drawn helmet and method therefor are disclosed. The system includes a forming draw ring and a non-forming draw ring and supports a prepreg stack between a forming aperture of the forming draw ring and a non-forming aperture of the non-forming draw ring. The system clamps a flange portion of the prepreg stack between a contact surface of the forming draw ring and a contact surface of the non-forming draw ring, which forms a clamped assembly of the rings and the prepreg stack. The system then forms a deep drawn helmet preform from the prepreg stack of the clamped assembly. The same system or a different forming system then consolidates one or more of the preforms into a final deep drawn helmet. The system can control sliding of the flange during forming of the helmet preform without reducing the flange clamping force.

Abstract: A system for forming a deep drawn helmet and method therefor are disclosed. The system includes a forming draw ring and a non-forming draw ring and supports a prepreg stack between a forming aperture of the forming draw ring and a non-forming aperture of the non-forming draw ring. The system clamps a flange portion of the prepreg stack between a contact surface of the forming draw ring and a contact surface of the non-forming draw ring, which forms a clamped assembly of the rings and the prepreg stack. The system then forms a deep drawn helmet preform from the prepreg stack of the clamped assembly. The same system or a different forming system then consolidates one or more of the preforms into a final deep drawn helmet. The system can control sliding of the flange during forming of the helmet preform without reducing the flange clamping force.

Abstract: An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite layer on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coating layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxygen and water vapor.

Abstract: A multilayer structure has barrier properties for gases and vapors, for example oxygen and water vapor; the structure comprises: an organic substrate layer, and a multilayer permeation barrier thereon; the barrier comprises: a) a first inorganic coating contacting a surface of the substrate layer, and b) a first organic coating contacting a surface of the inorganic coating; the structure may be employed in a variety of articles where barrier properties are important especially in electronic articles such as organic light emitting diode devices where superior barrier characteristics over the life of the device are required.

Abstract: A multilayer structure has barrier properties for gases and vapors, for example oxygen and water vapor; the structure comprises: an organic substrate layer, and a multilayer permeation barrier thereon; the barrier comprises: a) a first inorganic coating contacting a surface of the substrate layer, and b) a first organic coating contacting a surface of the inorganic coating; the structure may be employed in a variety of articles where barrier properties are important especially in electronic articles such as organic light emitting diode devices where superior barrier characteristics over the life of the device are required.

Abstract: An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite layer on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coating layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxygen and water vapor.