The present disclosure relates to a spar cap (10) for a wind turbine blade (1000) comprising: a plurality of spar cap layers (20) and a first interlayer (30) arranged between the first spar cap layer (20a) and the second spar cap layer (20b) and comprising: a number of first interlayer areas (31), including a first primary interlayer area (31a), comprising a first number of interlayer sheets (33) comprising a first plurality of fibres (35); and a number of second interlayer areas (32), including a second primary interlayer area (32a), comprising a second number of interlayer sheets (34) comprising a second plurality of fibres (36), wherein the first number of interlayer sheets (33) is of a different characteristic than the second number of interlayer sheets (34).

A flexible display module is provided. The flexible display module includes a bending area and a plane area adjacent to the bending area, and the flexible display module includes a flexible display panel; a protection cover plate; and a transparent adhesive layer, wherein the transparent adhesive layer bonds the flexible display panel and the protection cover plate, and storage modulus of at least a part of the transparent adhesive layer corresponding to the bending area is less than storage modulus of at least a part of the transparent adhesive layer corresponding to the plane area.

A composite film including stacking: a first fiber layer, a metal layer with multiple holes, and a second fiber layer, a stitching structure is arranged along the horizontal direction of the first fiber layer and the second fiber layer within areas of the holes of the metal layer; and the stitching structure in each of the holes is connected, but the stitching structures in different holes are not mutually connected. The stitching structures of this invention pass through the first fiber layer and the second fiber layer, fortifying the stress resistant abilities along the radial direction of the composite film, and thus avoid the peeling off of the stacked structure from the radial direction, and with the independent stitching structure formed independently in each of the holes of the metal layer, the stitching structures would not interact with each other, so that even one of the stitching structure is broken, other stitching structures would not be affected, effectively increasing the durability of the product of this invention.

[Front page view] FIG. 1.

[Brief description of the symbols of front page view] 10 composite film 11 first fiber layer 12 metal layer 121 hole 13 second fiber layer 14 stitching structure

A curable hot-melt silicone composition that is less susceptible to curing inhibition and with excellent storage stability, and a sheet or film containing the same, is provided. The composition comprises: (A) a solid organopolysiloxane resin containing a specific ratio of (A1) an organopolysiloxane resin having a curing reactive functional group that contains a carbon-carbon double bond and containing 20 mol % or more of a Q unit, and (A2) an organopolysiloxane resin not having a curing reactive functional group that contains a carbon-carbon double bond and containing 20 mol % or more of a Q unit; (B) a chain organopolysiloxane having a curing reactive functional group that contains at least two carbon-carbon double bonds; (C) an organohydrogenpolysiloxane resin having a mass loss ratio relative to pre-exposure of 10% or less after exposure to 100° C. for 1 hour under atmospheric pressure; and (D) a hydrosilylation reaction catalyst. The composition generally has hot-melt properties.

The present invention provides a decorative sheet which is provided with a relief pattern in the outer surface, while having excellent chemical resistance, wherein the relief pattern is suitably maintained even after molding. A decorative sheet which is provided with a relief pattern in the outer surface, while sequentially having, from the outer side, at least a first protective layer that constitutes the relief pattern and a second protective layer. The first protective layer is formed of a cured product of a resin composition that contains an ionizing radiation curable resin and a thermoplastic resin; and the second protective layer is formed of a cured product of an ionizing radiation curable resin composition that contains a polycarbonate (meth)acrylate.

A method for bonding composite substrates includes coupling a first co-cure prepreg layer having a first off-set amine to epoxide molar ratio onto a surface of a first composite substrate and coupling a second co-cure prepreg layer having a second off-set amine to epoxide molar ratio onto a surface of a second composite substrate. The first and second composite substrates are cured to the first and second co-cure prepreg layers, respectively, using a first cure cycle (including B-stage and cure temperatures) to form a first and a second co-cure prepreg layer portion. The method further includes coupling the first co-cure prepreg layer portion to the second co-cure prepreg layer portion and applying a second cure cycle to cure the first co-cure prepreg layer portion of the first composite substrate to the second co-cure prepreg layer portion of the second composite substrate to form a monolithic covalently bonded composite structure.

A method of repairing a core stiffened structure, including removing a damaged portion of the core stiffened structure; bonding a shelf onto a first core member; bonding a second core member to a shelf; and securing a skin patch over the second core member.

A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).

In a first aspect, the present invention concerns a multilayer coating for covering vehicle body parts, comprising a polymeric facestock layer (3) which is located between a polymeric top coat layer 4 and a polymeric adhesive layer (2), the top coat layer (4) comprising at least partially cross-linked polyurethane, wherein the at least partially cross-linked polyurethane is the reaction product of a composition comprising a first part and a second part, wherein: the first part comprises between 0.1 and 99.9 wt. % of solvent- or waterborne thermally curable polyurethane precursor material, as based on the total weight of said composition; and

the second part comprises between 0.1 and 99.9 wt. % of UV-curable polyurethane precursor material, as based on the total weight of said composition.

The invention further pertains to a method for manufacturing a multilayer coating for covering vehicle body parts.

A non-wicking underlayment board and methods for forming the same. The non-wicking underlayment board includes a foam core formed of closed cell foam with reinforcement layers encapsulated within the foam core. Outer facings formed of mineral coated nonwoven fibers are positioned on opposite faces of the non-wicking underlayment panel. The non-wicking underlayment board is useful for efficient and cost effective installation of barriers and surfaces in water-resistant and waterproof environments.