Method for manufacturing optically transparent gel-polymer electrolytes includes reaction of copolymerization of melamine and formaldehyde or melamine and glyoxal with one or several polyols and/or with one or several monosaccharides, oligosaccharides or polysaccharides and adding of a concentrated acid to form an optically transparent gel-polymer. The electrolyte according to the invention can be used in electrochromic devices and other optical-electrochemical devices as well as in devices for storing electrical energy (such as batteries, supercapacitors and hybrid power storage devices), thus replacing conventional water-based electrolytes.

The invention relates to insulating composite materials comprising an inorganic aerogel and a melamine foam. The invention also relates to the product method of said materials, and to the use of same.

The invention relates to insulating composite materials comprising an inorganic aerogel and a melamine foam. The invention also relates to the product method of said materials, and to the use of same.

The present invention provides a thermoformable melamine foam and a method for preparing the same, wherein the thermoformable melamine foam comprises a condensate of a melamine-formaldehyde-based compound with a low molecular ratio to be low in formaldehyde content and shows excellent thermostability and various physical properties.

A melamine-formaldehyde foam manufactured by including a melamine-formaldehyde condensate that has a weight average molecular weight (Mw) in a range of 1000 to 10,000 g/mol, a solid content in a range of 60 to 80 percent by weight (wt %), and a viscosity in a range of 1000 to 10,000, and a method of manufacturing the melamine-formaldehyde foam. The melamine-formaldehyde foam can have a uniform cell structure, while exhibiting excellent mechanical properties such as tensile strength and elongation.

A resin system and methods of making resin system wherein lignosulfonate is added to urea-formaldehyde and melamine-urea-formaldehyde adhesives. Lignosulfonate is added to the resins which improves the performance characteristics of the adhesive while reducing environmental impact by consuming byproducts from other industrial processes. The resin system includes a urea-formaldehyde (UF) resin or melamine-urea-formaldehyde (MUF), prepared in at least two stages wherein the UF resin or MUF resin has a molar ratio (MR) of total moles formaldehyde to total moles urea plus, if present, the one or more melamine compounds of from about 0.25:1 to about 2.50:1, and wherein one or more lignosulfonate compounds are included in an amount of from about 0.1-30 wt. %, based on a total weight of the resin system, and wherein the resin system has a buffer capacity of 2-400 mL of 0.1 N HCl by the ATV Method for a period of time of at least about 20 days at 25° C.

The present invention relates to a cleaning implement that includes a melamine-formaldehyde foam. The melamine-formaldehyde foam includes from about 0.1 to about 5 weight % of at least one linear polymer with a number average molecular weight M.sub.n in the range from 500 to 10,000 g/mol. Additionally the present invention encompasses processes for making and methods for cleaning hard surfaces with a cleaning implement according to the present invention.

Provided is an ultraviolet absorber capable of efficiently absorbing harmful lights in a wavelength region of 380 to 400 nm; and suppressing the absorption of lights having a wavelength of not shorter than 400 nm, which constitutes the cause of yellowing at early stages. The ultraviolet absorber can thus be used to produce a member superior in appearance as being less affected by harmful lights, and has an excellent light resistance, heat resistance and durability accordingly. The highly light-resistant ultraviolet absorber of the present invention is comprised of a 2-phenylbenzotriazole derivative that contains a thioaryl ring group or the like and is represented by, for example, the following formula (1):

PhBzT.sup.1a-S—X.sup.1a—(R.sup.1a).sub.l  (1) wherein PhBzT.sup.1a represents a substituted or unsubstituted 2-phenylbenzotriazole skeleton bonded to a thioaryl ring group (—S—X.sup.1a— . . . ), X.sup.1a represents a residue of a phenyl ring or the like, each of l R.sup.1as independently represents, for example, a hydrocarbon group having 1 to 18 carbon atoms, l represents an integer of 0 to 5.

The present invention relates to a complex and a material containing the same for oil-water separation. The preparation process of the complex is simple. The complex shows lipophilicity, superhydrophobicity, and super water-repellency since a zinc oxide particle layer, in which zinc oxide particles are agglomerated in a micro-nano structure, and a super-hydrophobic coating layer having low surface energy are sequentially formed on a surface of a polymer matrix having a cavernous porous structure, and thus the complex has high oil-water separation efficiency and high durability. When a magnetic particle layer exhibiting magnetism is provided between the zinc oxide particle layer and the super-hydrophobic coating layer, the positional control and collection of the complex is easy, and thus the complex can be helpfully used as a material for oil absorption type oil-water separation, which is used in large-scale oil-water separation, such as the removal of oil spilled into the ocean.

A foamed skeleton reinforced composite, comprising a foamed skeleton and a matrix material. The foamed skeleton is selected from at least one of a metal foamed skeleton, an inorganic non-metal foamed skeleton, and an organic foamed skeleton. The matrix material is selected from a metal or a polymer.