This invention relates to a wind turbine blade with retrofitted coating in and around areas where the blade is especially exposed to erosion damages, which is established by the coating including a glue layer, a fiber reinforced polymer layer and one or more non-reinforced polymer layers over the fiber reinforced layer, since the polymer layers stretch themselves out over the fiber reinforced layer and includes areas of the wind turbine blade's surface, which are less exposed to erosion damages. A method for creation of such a wind turbine blade and creation of such a coating and the coating itself, is also established with the invention.

A transdermal drug delivery patch includes a flexible base layer, and a plurality of microneedles disposed at one surface of the base layer and including a biodegradable polymer and a drug. Each of a plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a concave shape is formed between two protrusions adjacent along a circumferential direction among a plurality of protrusions.

The present disclosure may be embodied as a method for creating a restriction pattern from a mask material having a strain (ε.sub.mask) an for mapping elastomeric membrane having a strain (ε.sub.membrane) into a target 3D shape. The method may include discretizing the target 3D shape into a plurality of radial segments, and a radial strain (ε.sub.r) is determined for each radial position (r) on each radial segment of the plurality of radial segments. A restriction pattern is determined, wherein the restriction pattern comprises a quantity of mask material for each position r to provide a composite strain (ε.sub.mask, ε.sub.silicone). In some embodiments, the method further includes depositing a first membrane layer into a mold and placing mask material into the first membrane layer according to the determined restriction pattern. The first membrane layer is cured.

The present disclosure may be embodied as a method for creating a restriction pattern from a mask material having a strain (ε.sub.mask) an for mapping elastomeric membrane having a strain (ε.sub.membrane) into a target 3D shape. The method may include discretizing the target 3D shape into a plurality of radial segments, and a radial strain (ε.sub.r) is determined for each radial position (r) on each radial segment of the plurality of radial segments. A restriction pattern is determined, wherein the restriction pattern comprises a quantity of mask material for each position r to provide a composite strain (ε.sub.mask, ε.sub.silicone). In some embodiments, the method further includes depositing a first membrane layer into a mold and placing mask material into the first membrane layer according to the determined restriction pattern. The first membrane layer is cured.

Provided are a laminate, a circuit board, and a liquid crystal polymer (LCP) film comprised therein. The laminate comprises a metal foil and an LCP film. The LCP film in the laminate has a dissipation factor before water absorption (Df′.sub.0), a dissipation factor after water absorption (Df′.sub.1), and a relative percentage difference between dissipation factors (ΔDf′), which is calculated by the following equation: $\Delta {\mathrm{Df}}^{\prime }\left(\%\right)=\frac{.Math.{\mathrm{Df}}_1^{\prime }-{\mathrm{Df}}_0^{\prime }.Math.}{{\mathrm{Df}}_0^{\prime }}\times 100\%;$
wherein ΔDf′ may be less than or equal to 16%. By controlling ΔDf′ of the LCP film in the laminate, the insertion loss of a circuit board comprising a laminate during signal transmission in low-, medium-, and/or high-frequency bands is decreased and/or inhibited. In addition, the difference between the insertion losses of signal transmission before and after water absorption is decreased, so the laminate is suitable for high-end or outdoor high-frequency electronic products.

Provided are a laminate, a circuit board, and a liquid crystal polymer (LCP) film comprised therein. The laminate comprises a metal foil and an LCP film. The LCP film in the laminate has a dissipation factor before water absorption (Df′.sub.0), a dissipation factor after water absorption (Df′.sub.1), and a relative percentage difference between dissipation factors (ΔDf′), which is calculated by the following equation: $\Delta {\mathrm{Df}}^{\prime }\left(\%\right)=\frac{.Math.{\mathrm{Df}}_1^{\prime }-{\mathrm{Df}}_0^{\prime }.Math.}{{\mathrm{Df}}_0^{\prime }}\times 100\%;$
wherein ΔDf′ may be less than or equal to 16%. By controlling ΔDf′ of the LCP film in the laminate, the insertion loss of a circuit board comprising a laminate during signal transmission in low-, medium-, and/or high-frequency bands is decreased and/or inhibited. In addition, the difference between the insertion losses of signal transmission before and after water absorption is decreased, so the laminate is suitable for high-end or outdoor high-frequency electronic products.

A method for making a carbon nanotube composite structure is related. A substrate having a first surface is provided. A carbon nanotube structure including a plurality of carbon nanotubes is placed on the first surface, wherein the plurality of carbon nanotubes is in direct contact with the first surface. A monomer solution is coated to the carbon nanotube structure, wherein the monomer solution is formed by dispersing a monomer into an organic solvent. The monomer is polymerized, and then the substrate is removed.

A method for making a carbon nanotube composite structure is related. A substrate having a first surface is provided. A carbon nanotube structure including a plurality of carbon nanotubes is placed on the first surface, wherein the plurality of carbon nanotubes is in direct contact with the first surface. A monomer solution is coated to the carbon nanotube structure, wherein the monomer solution is formed by dispersing a monomer into an organic solvent. The monomer is polymerized, and then the substrate is removed.

The present invention is a unique process of manufacturing rigid members with precise “shape keeping” properties and with reflective properties pertaining to radio frequency energy, so that air, land, sea and space devices or vehicles may be constructed including parabolic reflectors formed without discrete permanent layering. Rather, such parabolic reflectors or similarly, vehicles, may be formed by homogeneous construction where discrete layering is absent, and where energy reflectivity or scattering characteristics are embedded within the homogeneous mixture of carbon nanotubes and associated graphite powders and epoxy, resins and hardeners. The mixture of carbon graphite nanofiber and carbon nanotubes generates higher electrode conductivity and magnetized attraction through molecular polarization. In effect, the rigid members may be tuned based on the application. The combination of these materials creates a unique matrix that is then set in a memory form at a specific temperature, and then applied to various materials through a series of multiple layers, resulting in unparalleled strength and durability.

Provided are an LCP film and a laminate comprising the same. The LCP film is made of an LCP resin comprising a structural unit represented by Formula (1): -L.sub.1-Ar-L.sub.2- (1), wherein -L.sub.1- and -L.sub.2- are respectively —O— or —CO—; —Ar— is an arylene group. Formula (1) comprises structural units

##STR00001##

Based on a total molar number of the structural unit represented by Formula (1), a molar number of the structural unit represented by Formula (I) is in the range from 15 mole % to 40 mole %, and a sum of molar numbers of the structural units represented by Formulae (I) and (II) is in the range from 80 mole % to 100 mole %. The LCP film has a thickness and a transmittance, wherein when values of the thickness (in μm) and the transmittance are put into Formula (III), the obtained value is from 0.055 to 0.090. Formula (III): Log(1/TT %)/(Thickness).sup.0.5.