A three-dimensional multi-shell insulation configured to conform to the shape of a spacecraft component to be insulated. The insulation may have a plurality of nested shell layers that are displaceable relative to each other for providing natural separation between the shell layers when the insulation is used in low-pressure and/or low-gravity space-related applications. To establish the spacing between shell layers, an edge clamp may be operatively coupled to an edge portion on at least one side of each shell layer. The shell layers may have sufficient flexibility and/or may be sufficiently displaceable relative to each other to allow the insulation to be installed or removed from the spacecraft component. One or more restraints may be provided in the space between the shell layers for restricting the relative lateral and/or transverse movement between shell layers for preventing contact. Additive manufacturing may be employed to fabricate the insulation and integrate features.

A heat insulating material (1) includes a heat insulating layer (10) which has a porous structural body, a reinforcing fiber, and nanoparticles of a metal oxide used as a binder, wherein the porous structural body has a skeleton formed by connecting a plurality of particles, has pores inside, and has a hydrophobic portion on at least one surface between a surface and an inside of the porous structural body. The heat insulating layer (10) has a mass loss rate of 10% or less in thermogravimetric analysis held at 500° C. for 30 minutes.

The present invention relates to a vacuum insulating panel (VIP). The VIP comprises an insulating core (2) having upper (3) and lower surfaces (4) and at least one substantially planar reinforcing member (5) arranged on the upper (3) or lower surface (4) of the core (2). The reinforcing member (5) is porous and substantially rigid. The VIP further comprises a barrier envelope, optionally in the form of a barrier film (6), arranged to envelop the insulating core (2) and the planar member (5). The present invention also relates to methods of manufacturing a vacuum insulating panel (VIP).

A condensation-controlling insulation system includes an interior insulation layer for application to a cold surface. The system may further include an exterior absorption layer adapted to retain condensation during a first environmental condition and to release the condensation as a vapor during a second environmental condition.

It is an object of the present invention to provide a method of producing a vacuum thermal insulation panel capable of reducing the occurrence probability of poor welding of a metal outer wrapping material. The method of producing the vacuum thermal insulation panels 100, 100A to 100 D, 101, 101A according to the present invention includes a “covering step of covering a core material 110 or 110B with a metal foil 130 or 131” and a “welding step of welding a metal foil portion on an outer side of the core material”, and the core material is at least partially covered with a cover 120, 120A, or 120D at a timing when the covering step is to be started. Note that when the entire surface of the core material is covered with the cover, it is preferable to reduce the inside of the cover to seal the cover before the covering step, and when a part of the core material is covered with the cover, it is preferable to simultaneously reduce a pressure inside the metal foil and a pressure inside the cover to seal the metal foil.

A pre-insulated flexible hot water pipe comprising a flexible pipe core; a flexible insulator surrounding the flexible pipe core; and a coating surrounding the flexible insulator.

The present invention is directed to a thermally insulative material comprising PTFE, including an expanded PTFE (ePTFE), having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. In one embodiment, the insulative material of the present invention includes aerogel particles and polytetrafluoroethylene (PTFE). The insulative material may be formed into articles that are hydrophobic, highly breathable, possess high strength, and which may be used in non-static applications such as dynamic flexing and the like. The insulative articles are flexible, stretchable, and bendable. Also, the insulative material has little to no shedding or dusting of fine particles. Aerogel particles having a particle density of less than about 100 kg/m.sup.3 and a thermal conductivity of less than or equal to about 15 mW/m K at atmospheric conditions (about 298.5 K and 101.3 kPa) may be used in the insulative material.

The present application relates to a thermal insulation felt with thermal shock resistance and a preparation method thereof. A thermal insulation felt with thermal shock resistance has a layered structure, and includes a glass fiber layer with filler and a thermal shock-resistant coating, in which the thermal shock-resistant coating is coated on one or two sides of the glass fiber layer with filler. The filler is hollow glass bead or aerogel SiO.sub.2. The thermal shock-resistant coating is obtained by coating a thermal shock-resistant coating material on one or two sides of the glass fiber layer with filler and then drying and solidifying. The thermal shock-resistant coating material, based on a weight percentage, includes 10-50% SiO.sub.2, 5-60% ZnO, 5-40% Al.sub.2O.sub.3, 5-15% poly tetra fluoroethylene, 5-35% silane coupling agent and 15-50% phosphate.

A method protects a field joint of a pipeline, where chamfered edges of thermally-insulating parent coatings on conjoined pipe lengths are in mutual opposition about a longitudinally-extending gap. The method includes manufacturing an hourglass-shaped inner layer around the pipe lengths, which layer may be moulded. The inner layer extends longitudinally along the gap between the chamfered edges and at least partially overlies the chamfered edges. A thermally-insulating solid insert is assembled from two or more parts to lie in the gap surrounding the inner layer, and pressure is applied radially inwardly from the insert to the inner layer. An outer layer of molten material is manufactured around the insert to form a watertight barrier and to form one or more melted interfaces with the inner layer. Corresponding field joint arrangements are also disclosed.

Provided are a multilayered-coating system and a method of manufacturing the same. The multi-layered coating system includes: a layer 1 including a plurality of spherical voids with a radius a.sub.1 that are randomly distributed and separated from one another and a filler material with a refractive index n.sub.1 that is disposed in a space between the spherical voids; and subsequent layers expressed as the following word-equation, “a layer i located above a layer i−1 and including a plurality of spherical voids with a radius a.sub.i that are randomly distributed and separated from one another, and a filler material with a refractive index n.sub.i, the filler material disposed in a space between the spherical voids where i is an integer greater than 1”.