The invention relates to a fan case for an aircraft engine in the region of the fan thereof, comprising a plurality of substantially cylindrically arranged fiber-reinforced plastic layers that are joined together, wherein a reinforcement ply made of a glass fiber-reinforced plastic is disposed between an inner layer and an outer layer. According to the invention, the reinforcement ply consists of at least 20 plies of a glass fiber-reinforced plastic, and that deformation layers are disposed on both sides of the reinforcement ply, which deformation layers have a lower strength than the reinforcement ply.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

Provided are a transparent heat-insulating material including a transparent heat-insulating resin layer including polymer capsules and an optical resin, and a method for preparing the same. The transparent heat-insulating material may reduce the transmission of radiative heat of solar radiation energy entering from the exterior, and prevent discharge or loss of heat when indoor heating, while showing high transparency as well. In addition, the transparent heat-insulating material may allow easy control of the size of capsules contained in a transparent heat-insulating film, and may be obtained through a simple and easy process. Further, it is possible to control the light transmittability and heat-insulating property of the transparent heat-insulating material with ease.

A reinforced composite structure and a method of making a reinforced composite structure are disclosed herein. The structure and methods disclosed herein include a reinforcing flexible material, a barrier layer, and a foam. The barrier layer can be perforated. The foam can pass through the barrier layer to contact and adhere or bond to the reinforcing flexible material. The structure and methods according to the disclosure are useful, for example, in any structural boat component such as stringers, bulkheads, hull and deck stiffeners, beams, fuel tank supports, structural members, long-span stiffeners, corner stiffeners, hull side-to-bottom strengthening, hatch and swim platform reinforcement, insulated compartments, fish boxes, and applications for flat-bed trailers, truck bodies, buses, recreational vehicles, or other types of vehicles, such as aircrafts.

Provided is an acrylic foam adhesive tape including: an acrylic foam layer formed by curing a composition for forming an acrylic foam layer; and an adhesive layer being in contact with one surface of the acrylic foam layer, wherein shear strength of the acrylic foam layer is 5 kg/cm.sup.2 to 15 kg/cm.sup.2.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.