A patient securing overlay is provided that includes a sheet of fabric for supporting a patient's torso on a surgical table. The sheet of fabric has an upper surface configured to face the patient and a lower surface configured to face a surgical table mattress or underbody support. The sheet of fabric includes friction enhancing elements applied to at least a portion of the upper surface thereof. The sheet of fabric can include an extension at a foot end of the sheet of fabric that provides material to be tucked under a foot end of the surgical table mattress or underbody support for securing the foot end of the sheet of fabric to the surgical table mattress or underbody support. The extension can include one or more friction enhancing elements.

Compositions and articles comprising a non-woven matrix for use as anti-microbial filters are provided. In some embodiments, the non-woven matrix comprises nanofibers suitable for capturing a droplet comprising a microbe (e.g. a virus particle). In some embodiments, the non-woven matrix comprises a biocide suitable for reducing propagation and/or inactivating a microbe.

Provided are a thermosetting epoxy resin composition and a prepreg, laminated board and printed circuit board using the thermosetting epoxy resin composition. The thermosetting epoxy resin composition comprises the following components in parts by weight: 2-10 parts of a phosphorus-containing anhydride, 5-40 parts of a phosphorus-free anhydride, 5-45 parts of an epoxy resin, 40-70 parts of a filler, and 0-15 parts of a phosphorus-containing flame retardant, with the total part by weight of all these components being 100 parts, wherein the phosphorus-containing anhydride has a structure as represented by formula I or II, and the epoxy resin is selected from one of or a combination of at least two of a bisphenol A epoxy resin, a bisphenol F epoxy resin and a biphenyl epoxy resin. The thermosetting epoxy resin composition also has good heat resistance, discoloration resistance and dimensional stability after curing while ensuring V-0 grade flame resistance, and can be used for the preparation of printed circuit board substrates in the field of LEDs.

The invention relates to a laminate (10; 10a) having a core (12) containing a thermoplastic polymer and having metal cover layers (16) disposed on either side of the core (12), each cover layer (16) being connected to the core (12) via an adhesive layer (14) having at least one polymer layer (15).

An object of the present invention is to obtain a fiber-reinforced composite material achieving both lightweight properties and mechanical properties at a high level. The present invention provides a fiber-reinforced composite material including a resin (A) and a reinforcing fiber (B), and having: a porous structure portion having micropores with an average pore diameter of 500 μm or less as measured by a mercury intrusion method; and a coarse cavity portion defined by the porous structure portion and having a maximum length of more than 500 μm as a cross-sectional opening portion.

A method for producing elastic laminates includes gripping first and second continuous elastic films in respective gripping zones by respective first and second stretching members, transversely stretching the first and second continuous elastic films by rotating said first and second stretching members about respective first and second axes of rotation inclined with respect to each other, and releasing the transversely stretched first and second continuous elastic films from the respective first and second stretching members in respective release zones aligned along a common transverse release line.

The present invention relates to the field of air filtration, in particular to a polytetrafluoroethylene composite filter material. The polytetrafluoroethylene composite filter material comprises a supporting layer and a polytetrafluoroethylene film layer, wherein the supporting layer is a silver-plated carbon nanomaterial-modified meltblown nonwoven fabric. The polytetrafluoroethylene composite filter material is prepared by fiberizing a resin material modified by silver-plated carbon nanomaterial on the surface of a polytetrafluoroethylene film by a melt-blowing method. The polytetrafluoroethylene composite filter material of the present invention combines filtering and sterilizing functions, has higher filtering efficiency and filtering precision, has the functions of sterilizing and killing viruses, has a good isolation effect, and greatly prolongs the service life of the filter material.

An elastomeric composition, including at least one skin layer and a core layer, with non-blocking properties such that the elastomeric composition can be wound is provided. The core layer includes an elastomer, and the skin layer includes an elastomer, which may be the same or different from the core layer, and a non-elastic polyolefin. Further, the skin layer can be present as a small portion of the total elastomeric composition, and may maintain the elastic efficiency of the composition.

The invention herein provides a full blackout anti-haze noise-reducing thermal insulation curtain. The said full blackout anti-haze noise-reducing thermal insulation curtain includes mutually symmetrical first shade fabric and second shade fabric. With the first shade fabric and the second shade fabric, the invention can achieve 100% blackout, which can effectively protect against ultraviolet rays, block the sunlight and provide thermal insulation. Between the said first shade fabric and the second shade fabric is a removable lining, which is easy to clean. The said lining is a sound-proofing felt fabric. By using porous sound-absorbing material and the fabric structures, it can effectively regulate the indoor sound environment and reduce sound and noise. A number of rings are mounted correspondingly at the top of the first shade fabric and the second shade fabric, which make the removal of the curtain fabric easy when it is used as a curtain.

A non-woven protective clothing against blood and viruses, which is composed from: a non-woven fabric layer, which has two surfaces; and a high waterproof moisture-permeable layer, which is a porous film that is laminated to one of the surfaces of the non-woven fabric layer; and an elastic pore filling layer, which is a hydrophilic polyurethane. The elastic pore filling layer is coated or printed onto the surface of the high waterproof moisture-permeable layer, and the thickness of the elastic pore filling layer is thinner than that of the high waterproof moisture-permeable layer. The synthetic blood permeability of the non-woven protective clothing against blood and viruses can resist a pressure of 2.0 psi for one minute, and the Phi-X174 bacteriophage penetrability thereof can resist a pressure of 2.0 psi for one minute.