A stiffener 100 comprises a first stiffener portion (102), having a first cross-sectional profile (104) that is constant along the first stiffener portion (102). The stiffener 100 also comprises a second stiffener portion (106), having a second cross-sectional profile (108) that is constant along the second stiffener portion (106). The second cross-sectional profile (108) of the second stiffener portion (106) is different from the first cross-sectional profile (104) of the first stiffener portion (102). The stiffener 100 additionally comprises a transition stiffener portion (110) tapering from the second stiffener portion (106) to the first stiffener portion (102).

Provided is a spectacle lens having, on at least one side of a lens substrate, a polarizing layer containing a dichromic pigment, and a photochromic layer containing a photochromic pigment, and having the polarizing layer and the photochromic layer via an intermediate layer.

To provide a laminate which has a heat sealing property, a barrier property and mechanical strength, of which elution of impurities from the surface to be in contact with a chemical solution is suppressed, and of which peeling and the like hardly occur at the sealed portion of a bag and at the interfaces between the layers of the laminate when exposed to high temperature, a bag using it and a lithium ion battery.

A laminate 10 comprising a first layer 12 containing a fluororesin, a second layer 14 containing a barrier material, a third layer 16 containing a fluororesin and a fourth layer 18 containing a polyamide in this order, wherein each of the fluororesin in the first layer 12 and the fluororesin in the third layer 16 is a fluororesin having a melting point of from 160 to 230° C. and having adhesive functional groups.

Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforcement opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.

Protective clothing materials and related methods and garments are provided. In some embodiments, a protective clothing material may comprise a fibrous layer that serves as a barrier to certain fluids (e.g., bodily fluids, water) and microbes. The impermeability of the fibrous layer may be due, at least in part, to the structural uniformity and/or relatively small pore size of the fibrous layer. In some embodiments, the fibrous layer may have a relatively high air permeability that imparts beneficial properties (e.g., relatively high air flow, breathability) to the protective clothing material without adversely affecting its protection rating. In certain embodiments, the protective clothing material may also comprise one or more coarse nonwoven webs that impart beneficial properties (e.g., splash resistance) to the protective clothing material. The protective clothing materials, described herein, may be particularly useful for a wide variety of applications, including the formation of AAMI level 4 protective garments.

A multi-layer film includes a first-seal layer and a second-seal layer. The multi-layer film may be used to form a package for consumer-care products.

The inventive disclosures are directed to a factory-controlled process for making improved, risk-optimized commercial-building waterproofing systems. The improved waterproofing-panel systems also include improved intrinsic leak-detection capabilities.

Disclosed herein is a composite piston pin including a pipe-shaped outer layer made of reinforced fibers; an inner layer coupled to the outer layer along an inner surface of the outer layer, and made of reinforced fibers having lower elasticity than the outer layer; and a resin material including an epoxy resin composition and cyanate ester, and impregnated into the reinforced fibers of the outer layer and the inner layer.

The present invention refers to a polymeric film comprising odor barrier material and being able to pack malodorous waste.

The present invention provides a polyester film suitable for use as a sealant, which not only has high heat sealing strength, but also is less liable to adsorb various organic compounds, and has a less shrinkage in heating and high tensile strength. Further, the present invention provides a laminate comprising at least one layer of the polyester film, and a packaging bag including the same. The polyester film which is formed with a polyester resin whose main constituent is ethylene terephthalate. The film has at least one heat sealing layer. The film has a predetermined heat sealing strength, a predetermined difference in reversing heat capacity measured with a temperature modulated DSC, and a predetermined heat shrinkage. Further, the laminate comprises at least one layer of the polyester film, and the packaging bag includes the same.