A moisture curable hot melt sealant composition that includes a silane-functional polyurethane that is free of isocyanate groups, a thermoplastic elastomer having a weight average molecular weight of at least 100,000 grams per mole and being derived from 0% by weight to no greater than 30% by weight styrene, based on the weight of the thermoplastic elastomer, the thermoplastic elastomer being selected from the group consisting of butyl rubber, ethylene-propylene rubber, ethylene-propylene diene rubber, thermoplastic polyolefin elastomer, styrene block copolymer, and combinations thereof, a first tackifying agent that includes from 0% by weight to less than 15% by weight aromaticity based on the weight of the tackifying agent, the first tackifying agent being selected from the group consisting of aliphatic tackifying agent, aromatic-modified aliphatic tackifying agent, cycloaliphatic tackifying agent, aromatic-modified cycloaliphatic tackifying agent, and combinations thereof, a liquid butene component selected from the group consisting of polyisobutylene, polyisobutene, polybutene, and combinations thereof, and optionally a second rosin-based tackifying agent.

A spacer for multipane insulating glazing units includes a polymeric main body having two pane contact surfaces running parallel to one another, a glazing interior surface and, an adhesive bonding surface. The pane contact surfaces, and the adhesive bonding surface are connected directly or via connection surfaces. The spacer also includes an insulation film, which is applied on the adhesive bonding surface.

A glass panel unit according to an example of the present disclosure includes a first glass panel and a second glass panel disposed to face the first glass panel. The glass panel unit includes: a seal having frame shape and hermetically binding the first glass panel and the second glass panel together; and a depressurized space surrounded by the first glass panel, the second glass panel, and the seal. The glass panel unit includes spacers between the first glass panel and the second glass panel. The spacers include a macromolecular resin material including molecular chains. Of the molecular chains, the number of molecular chains oriented in an orthogonal direction is larger than the number of molecular chains oriented in a counter direction. The orthogonal direction is a direction orthogonal to the counter direction, which is a direction in which the first and second glass panels face each other.

A glass panel unit including a first panel including at least a first glass plate; a second panel arranged to face the first panel and including at least a second glass plate; a frame member formed in a shape of a frame, corresponding in shape to respective peripheral portions of the first panel and the second panel extending along edges thereof, and bonded to the peripheral portions; and at least one spacer provided in a vacuum space between the first panel and the second panel. The at least one spacer containing a polyimide, where the polyimide has an absorption edge at which an absorption index decreases in an optical absorption spectrum ranging from an ultraviolet ray to visible radiation, the absorption edge being equal to or less than 400 nm, and the polyimide includes at least one selected from the group consisting of a fluorine group and a chlorine group.

A glass panel unit includes a first pane of glass, and a second pane of glass facing the first pane of glass with both of them spaced a predetermined interval apart. It is provided with a sealant between the panes of glass, joined to them in an airtight manner, and an interior space sealed with them and the sealant. It is provided with a first spacer in the interior space so as to be in contact with the panes of glass, and a second spacer disposed in the interior space so as to be in contact with only one of the panes of glass and out of contact with another thereof.

An energy-saving security composite window comprising a peripheral side frame and glass installed on the side frame, in which the side frame is of composite structure. A rectangular high strength metal pipe is located centrally to serve as a main body of the side frame and a cavity of the rectangular high-strength metal pipe is filled with a filling material. A plurality of non-metal profiles are respectively fixed on an outer surface of the rectangular high-strength metal pipe, and an installation groove for installing glass is formed between the rectangular high strength metal pipe and the non-metal profile. An external profile is a metal alloy material, a wooden material, a plastic material, or a glass material fixed on an outer surface of the non-metal profile. The performances of external windows of buildings, such as heat insulation, heat preservation, energy saving, sound insulation, and wind pressure resistance, is improved.

Certain example embodiments of this invention relate to composite pillar arrangements for VIG units that include both harder and softer materials. The softer materials are located on the outside or extremities of the central, harder pillar material. In certain example embodiments, a high aspect ratio mineral lamellae is separated by an organic glue or polymer. When provided around a high strength pillar, the combination of the pillar and such a nano-composite structure may advantageously result in superior strength compared to a monolithic system, e.g., where significant wind loads, thermal stresses, and/or the like are encountered.

Methods and vacuum insulated glazing units are provided. The methods include providing a first pane, applying a primary sealant to the first pane adjacent to and along a perimeter of the first pane, positioning support pillars on the first pane, positioning an evacuation tube on the first pane, positioning a second pane on the support pillars, heating the primary sealant with a laser beam sufficient to sinter the primary sealant to form a primary seal joining the first and second pane, evacuating an intermediate space defined between the first and second pane, and the primary seal to produce a low-pressure environment in the intermediate space by drawing gas from the intermediate space through the evacuation tube, and sealing the evacuation tube and thereby hermetically sealing the intermediate space within the first and second pane, the primary seal, and the evacuation tube to maintain the low-pressure environment therein.

Sealants, vacuum insulated glazing (VIG) units having seals formed from the sealants, and methods for producing the VIG units using the sealants are provided. The sealants include a mixture of glass materials in powder form and a carrier medium. The glass materials have compositions including: 0 to 55 wt. % Bi.sub.2O.sub.3; 10 to 65 wt. % SiO.sub.2; 1 to 10 wt. % Al.sub.2O.sub.3; 10 to 30 wt. % R.sub.2O, wherein R is chosen from the group consisting of Li, Na, K, or a combination thereof; 0.01 to 20 wt. % of RO, wherein R is chosen from the group consisting of Ca, Mg, or a combination thereof; 2 to 15 wt. % of BaO; 0 to 5 wt. % TeO.sub.2; 0.01 to 20 wt. % of Fe.sub.2O.sub.3 or FeO; 2 to 30 wt. % of B.sub.2O.sub.3; 0.1 to 2 wt. % of P.sub.2O.sub.5; 0.1 to 2 wt. % of ZnO; and 0.1 to 2 wt. % of CuO or Cu.sub.2O.

The glass panel unit includes a first glass panel, a second glass panel, a seal, an evacuated space, and a spacer. The second glass panel is placed opposite the first glass panel. The seal with a frame shape hermetically bonds the first glass panel and the second glass panel to each other. The evacuated space is enclosed by the first glass panel, the second glass panel, and the seal. The spacer is placed between the first glass panel and the second glass panel. The spacer is a stack of two or more films. At least one film of the two or more films contains a polymer having a viscoelastic coefficient at 400 C. larger than 500 MPa.