A pressboard for high-voltage devices is disclosed. The pressboard has a density of 0.6-1.3 g/cm.sup.3 according to IEC60641-2, and includes 1-15% microfibrillated cellulose (MFC) based on the total dry weight of the pressboard. The pressboard also includes an insulation element. For example, the pressboard is impregnated with an electrically insulating compound. The insulation element may be used in a high-voltage device, such as a power transformer.

A method for producing a thermal insulating paper includes producing the thermal insulating paper in a classic paper production process from a raw material having materials with good thermal properties and materials with electrically insulating properties in a paper matrix. A thermal insulating paper produced using the above method may include inorganic fibers, electrical insulators, aramid fibers, or binders.

A method for producing a thermal insulating paper includes producing the thermal insulating paper in a classic paper production process from a raw material having materials with good thermal properties and materials with electrically insulating properties in a paper matrix. A thermal insulating paper produced using the above method may include inorganic fibers, electrical insulators, aramid fibers, or binders.

Fibrids comprising poly alpha-1,3-glucan or surface-modified poly alpha-1,3-glucan were produced and characterized. Applications and products for using these fibrids include emulsification, viscosity modification, paper and paper making, personal care products, pharmaceutical products, food products, paper coatings, and composites. Examples of surface-modified poly alpha-1,3-glucan fibrids include those with a positive surface charge.

Fibrids comprising poly alpha-1,3-glucan or surface-modified poly alpha-1,3-glucan were produced and characterized. Applications and products for using these fibrids include emulsification, viscosity modification, paper and paper making, personal care products, pharmaceutical products, food products, paper coatings, and composites. Examples of surface-modified poly alpha-1,3-glucan fibrids include those with a positive surface charge.

A multilayer material for use as a thermal insulation barrier and/or flame barrier in a rechargeable electrical energy storage system is provided. The multilayer material comprises at least one inorganic fabric layer bonded to a nonwoven layer comprising inorganic particles and inorganic fibers by an inorganic adhesive, wherein the inorganic adhesive. The inorganic adhesive can be a modified inorganic adhesive comprising at least 99 wt. % inorganic constituents and an organic additive of at least 0.01 wt. % and less than 1 wt. % based on a total solids content of the inorganic adhesive.

An assembly includes at least one winding and a housing in which the winding is disposed. The winding has at least one electrical conductor and a cellulosic or cellulose-containing insulation material at least partially surrounds the winding and/or the electrical conductor thereof. The housing is filled with a liquid coolant during operation so that the winding is located in a liquid coolant during operation. In addition to existing cellulose-containing insulation material which encloses the winding and/or the electrical conductor thereof for insulation purposes, the housing and/or a coolant circuit for the coolant contains at least one composition containing chemical compounds for reducing the aging of cellulose-containing insulation material. A method of reducing the aging of cellulosic insulation material of a winding is also provided.

A multiple parallel conductor that is easy to produce and use and has a plurality of twisted, insulated individual conductors. The individual conductors are arranged above one another in a plurality of sub-conductor bundles arranged next to one another. A strip is applied to the multiple parallel conductor on a side surface of the multiple parallel conductor in the longitudinal direction of the multiple parallel conductor, on which strip spacer plates are arranged so as to be distributed in the longitudinal direction, and the multiple parallel conductor together with the strip and the spacer plates is wrapped with a wrapping.

Disclosed herein are poly alpha-1,3-glucan fibrids and methods for making them. The fibrids have a fibrous shape with an average length of between 10 μm and 10 mm and width of between 200 nm and 200 μm. Also disclosed are uses for the fibrids, including paper-making and as a viscosity modifier in making formulations for applications such as laundry applications and personal care applications, and as an emulsifier in food.

Disclosed herein are poly alpha-1,3-glucan fibrids and methods for making them. The fibrids have a fibrous shape with an average length of between 10 μm and 10 mm and width of between 200 nm and 200 μm. Also disclosed are uses for the fibrids, including paper-making and as a viscosity modifier in making formulations for applications such as laundry applications and personal care applications, and as an emulsifier in food.