A method for curing and surface functionalization of molded parts, including processing materials that contain at least one unsaturated radically or cationically curable reactive resin system and further substances to form a molded part and cross-linking the materials up to dimensional stability during or after the processing. The method additionally includes subjecting the molded part to energetic radiation or energetic particles at least one of during the cross-linking and subsequent to the cross-linking to essentially complete curing at least of a surface region of the molded part to produce an essentially completely coatable molded part surface.

Siliconized release film for the production of polymer moldings from fiber composites using a mold, which comprises a support film which is capable of vacuum deep drawing at room temperature and a coating which can be applied in liquid form and consists, optionally after removal of any solvent, of more than 90 atom % of silicon, carbon and/or oxygen, more than 45 atom % of carbon and more than 20 atom % of silicon, in each case based on the total coating and measured by XPS, characterized in that the coating has been crosslinked by means of condensation reactions, addition reactions or radiation.

A preparation method of a high-barrier antibacterial flame-retardant food packaging film solves problems that an existing food packaging film is non-degradable, poor in preservation effect, and inflammable. The preparation method includes: performing blending reaction on chitosan quaternary ammonium salt and phytic acid to generate a polyelectrolyte complex; and adding the polyelectrolyte complex into a polyvinyl alcohol solution, heating the polyvinyl alcohol solution added with the polyelectrolyte complex to obtain a film-forming solution, pouring the film-forming solution into a mold, leveling and drying the film-forming solution to obtain the high-barrier antibacterial flame-retardant food packaging film. The food packaging film has water vapor permeability in 1.82-2.58?10.sup.?8 g.Math.s.sup.?1.Math.m.sup.?1.Math.Pa.sup.?1, oxygen permeability in 1.63-12.31 cm.sup.3.Math.mm.sup.?2.Math.Pa.sup.?1.Math.day.sup.?1, and a value of limiting oxygen index (LOI) in 28.10%-33.33%. The food packaging film performs an instant self-extinguishing behavior after ignition; and can inhibit Staphylococcus aureus and Escherichia coli when used in packaging.

Embodiments of the present disclosure provide a method of modifying a surface of a film with an inverse miniemulsion, the method comprising: preparing an inverse miniemulsion loaded with a precursor, and then configuring an alkaline miniemulsion, and finally preparing an oxide nanocrystal surface-modified film by a solvothermal process. Embodiments of the present disclosure drive an oxide nanocrystal precursor preloaded in the inverse miniemulsion to migrate to the surface of the film during a solvent thermal treatment by utilizing a pH-responsive polymer that changes the nature of the polymer in the presence of a change in pH, resulting in the formation of the oxide nanocrystal modification on the film surface. The functional film materials modified by the embodiments of the present disclosure have potential applications in the fields of semiconductor, photosensitivity and photoluminescence.

The present invention provides: a highly transparent optical member which is formed from a silicone resin or a silicone rubber, and which has less mass change and excellent heat resistance without causing contact faults, or deterioration or contamination of the surface of other members due to adhesion to an electronic circuit or the surfaces of other members; and a production method for producing said optical member. According to the production method, the content of low-molecular-weight siloxanes D.sub.3-D.sub.20 in a optical member is reduced to an infinitesimal amount with use of a plurality of different low-molecular-weight siloxane removal steps.

Disclosed are polymer compositions incorporating metal nanoparticles and medical devices or other products made therefrom. The disclosed polymer compositions can be utilized to form medical devices, including implantable medical devices, with effective antimicrobial properties. The disclosed polymer compositions incorporate metal nanoparticles that function without the release of metal (e.g., silver) ions. The polymer compositions may have anti-UV properties imparted by metal nanoparticles.

A thermally expandable sheet includes:

a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material; and

a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material,

wherein the second thermally expandable material further contains white pigment.

This disclosure relates to superhydrophobic materials and/or surfaces comprising a shrinkable polymer substrate and at least one polysiloxane layer, wherein the materials and/or surfaces comprise microscale wrinkles and nanoscale features that form hierarchical structures. Methods of making and uses thereof are also disclosed herein.

A method for producing a fiber-reinforced plastic from a prepreg is provided with: executing a first heating to retain the prepreg in a first atmosphere, a temperature of the first atmosphere being above a room temperature and not higher than 100 degrees C.; after executing the first heating, executing a second heating to retain the prepreg in a second atmosphere, a temperature of the second atmosphere being not lower than 150 degrees C. and lower than a curing temperature of the prepreg; and after executing the second heating, executing a third heating to retain the pregreg in a third atmosphere, a temperature of the third atmosphere being higher than the curing temperature, wherein at least the first atmosphere and the second atmosphere are under reduced pressure below an atmospheric pressure.

A film having heat sealing properties, a packaging bag using the film and a method of imparting heat sealing properties to the film are provided. The film is made up of a single layer of biaxially stretched polyester or made up of a laminate including the layer of biaxially stretched polyester at a surface. The layer of biaxially stretched polyester includes a non-sealing portion having no heat sealing properties, and a sealing portion having heat sealing properties due to irradiation of laser light and exhibiting lower crystallinity compared to that of the non-sealing portion.