Described is a tri-block prepolymer having a chemical structure of [A]-[B]-[C], comprising at least one monovalent reactive group, wherein segment [A] and [C] independently comprise polymeric segments based on a first hydrophilic monomer comprising functionality selected from the group consisting of hydroxyalkyl, alkylamine, and mixtures thereof and optionally a second hydrophilic monomer, and [B] comprises a polymeric segment of at least one silicone-containing macromer and optionally a third hydrophilic monomer comprising functionality selected from the group consisting of hydroxyalkyl, alkylamine, and mixtures thereof and optionally a silicone-containing monomer. These prepolymers may be used alone or in combination with other components in reactive monomer mixtures for making silicone hydrogels and ophthalmic devices made therefrom, including contact lenses.

Provided are a method for manufacturing a nano-pattern including: increasing a temperature of a self-assembling material applied on a substrate through light irradiation to form a self-assembly pattern, and a nano-pattern manufactured thereby. More particularly, the present invention relates to a method for manufacturing a nano-pattern capable of implementing various circuit patterns through simple dragging without using a photoresist pattern or chemical pattern in advance, implementing the nano-pattern on a substrate having a three-dimensional structure such as a flexible substrate as well as a flat substrate, and performing a process without a specific environmental restriction. In addition, the present invention relates to a method for manufacturing a nano-pattern capable of forming a large-area self-assembly pattern within a very short time, that is, several to several ten milliseconds (ms) by instantly irradiating high-energy flash light to instantly perform thermal annealing.

A method for reducing surface tension of polymer material by decompression effect includes step as follows. A decompression step is performed, wherein a polymer material is placed at a low pressure environment to reduce a surface tension of the polymer material, and a pressure of the low pressure environment is lower than 10.sup.5 Pa.

Crosslinked silicone foams can be prepared from first and second poly(organosiloxane)s using electron beam radiation. The first poly(organosiloxane) has SiH groups and the second poly(organosiloxane) has SiOH groups. Adhesive articles including pressure-sensitive adhesive crosslinked silicone foams are also disclosed.

The present disclosure relates to a method of making an optical assembly. An optical device is secured in a fixture, the optical device having an optical surface, wherein a silicone film is positioned with respect to the optical surface, the silicone film having a distal surface relative to the optical surface. The method includes, among other features, imprinting the distal surface of the silicone film to create a surface imprint in the distal surface of the silicone film.

Provided is a curable silicone resin composition containing an inorganic oxide that may form an optical member having a relatively high refractive index and excellent optical transparency. The curable silicone resin composition may include a first curable silicone resin having a first functional group for surface bonding and a first crosslinkable functional group, a second curable silicone resin having a second functional group for surface bonding and a second crosslinkable functional group, and first and second inorganic oxide particles bonded to the first and second curable silicone resins by the first and second functional groups for surface bonding, respectively. The first and second crosslinkable functional groups may be bonded by applying energy.

The present disclosure relates to a method of making an optical assembly. An optical device is secured in a fixture, the optical device having an optical surface, wherein a silicone film is positioned with respect to the optical surface, the silicone film having a distal surface relative to the optical surface. The method includes, among other features, imprinting the distal surface of the silicone film to create a surface imprint in the distal surface of the silicone film.

A high strength and biodegradable polymer film comprising a blend of a polylactic acid (PLA) copolymer, a flexible polymer linker, and optionally a compostable polyester segment is disclosed. Upon biaxially stretching, the disclosed polymer film exhibits unexpectedly high tensile strengths and high impact strengths while providing high flexibility as measured according to various standards such as ASTM D882, D3420, and D1709. The disclosed films are formulated to meet common industrial composting standards as defined by ASTM D6400, EN 13432, and ISO 17088, as well as exhibit accelerated biodegradation rates at lower temperatures for home composting applications.

A two-component thermally-conductive addition-curable silicone constituted of a first component and a second component, wherein, the first component contains: (A) an organopolysiloxane having an alkenyl group bonded to a silicon atom, (C) a thermally-conductive filler, and (E) a platinum group metal catalyst; and
the second component contains: (A) an organopolysiloxane having an alkenyl group bonded to a silicon atom, (B) an organohydrogenpolysiloxane, and (C) a thermally-conductive filler.

The first component does not contain component (B), the second component does not contain component (E) and one or both of the first and second components contains (D) a complex of a metal and a 8-quinolinol.

This disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and functionalized carbon nanotubes, and systems and methods of formation thereof. The microcellular polymer foam has an average pore size within a range of 1 micron to 100 microns, the sub-microcellular polymer foam has an average pore size within a range of 0.5 microns to 1 micron, and the nano-cellular polymer foam has an average pore size within a range of 10 nanometers to 500 nanometers. In other aspects, this disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and non-functionalized carbon nanotubes.