The present invention relates to a method for preparing a double-sided film containing the step of 5 forming a film in the interface between air and the mixture of a polymer comprising amine group (—NH) and a compound containing phenol or catechol by exposing the mixture on the air. Particularly, the double-sided film of the present invention is a separation membrane 10 that can separate the interface of liquid phase and gas phase and at the same time can be used as a biomaterial such as a haemostatic and also an waterproof agent. When the film is prepared in a moderate condition by using an enzyme, the film can include proteins and 15 cells, resulting in the multi-functional versatility film that can be useful as a biocatalyst. The versatility film of the present invention, thus, is not expensive and the production method thereof is simple and eco-friendly.

The invention provides a polytetrafluoroethylene composition having high flowability. The polytetrafluoroethylene composition contains a particulate polytetrafluoroethylene having fibrillability and a particulate synthetic amorphous silica. The particulate polytetrafluoroethylene is a polytetrafluoroethylene fine powder or a polytetrafluoroethylene molding powder. The particulate synthetic amorphous silica is obtained by a dry process and has an average primary particle size smaller than 200 nm. The particulate synthetic amorphous silica is attached to the surface of the particulate polytetrafluoroethylene.

The present disclosure relates to a thermoplastic resin composition including a thermoplastic resin, carbon fiber, carbon nanotube, plate-shaped graphite, and metal fiber, which has excellent mechanical properties and electromagnetic wave shielding performance.

A flame-retardant and abrasion-resistant composite is provided, and includes a nano-porous material and a polymer. The nano-porous material includes a plurality of powder having a particle size of less than 20 micrometers. A specific surface area of the powder is 50 to 3,000 m.sup.2/g. An amount of the powder is 50 parts per million to 30 wt %. The nano-porous material is dispersedly bound to the polymer and a limiting oxygen index of the composite is greater than or equal to 24%.

A method of forming a composite material includes photo-initiating a polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice. Unpolymerized monomer is removed from the polymer microlattice. The polymer microlattice is coated with a metal. The metal-coated polymer microlattice is dispersed in a polymer matrix.

A retroreflective optical element is provided in which modified glass beads having a high refractive index are embedded on the surface of a thermoplastic core. The glass beads are heated to a temperature near the softening point of the thermoplastic core and the heated beads and thermoplastic cores are mixed in a fluidized bed. The beads embed into the thermoplastic core and are also chemically bonded thereto through a silane coupling agent provided on the beads.

The invention to which this application relates is apparatus and a method for applying coatings to improve the ability to provide Oleophobic and/or Hydrophilic surfaces on an item and the coating includes particles and/or nano particles to enhance the performance characteristics of the coating.

Articles are provided, including a substrate having a first major surface, the substrate including a nonwoven material, a woven material, or a foam. The article further includes microcapsules having an outer surface and a plasticizer encapsulated in the microcapsules, where the plurality of microcapsules is attached to the first major surface of the substrate with a polymeric material. A method of making an article is also provided, including providing a substrate having a first major surface and providing microcapsules having an outer surface and a plasticizer encapsulated in the microcapsules. The method further includes attaching the microcapsules to the first major surface of the substrate with a polymeric material, thereby forming a polymeric matrix attached to the first major surface of the substrate.

Aerogel can be coated with a polymerizable resin, which cures to form a polymer-coated aerogel. The coated aerogels can be used structural or thermal insulating component, such as in analytical and scientific devices. Coated aerogels can be further coated with conductive material, a semi-conductive material, a non-conductive material, a resistive material, or a combination thereof.

A particle and a method for producing the same is disclosed. For example, the particle includes a polymer resin that is compatible with a three-dimensional (3D) printing process to print a three-dimensional (3D) object and a marking additive that allows selective portions of the 3D object to change color when exposed to a light, wherein the marking additive is added to approximately 0.01 to 25.00 weight percent (wt %).