A moisture curable hot melt sealant composition that includes a silane-modified polyurethane polymer that is free of isocyanate groups, a first rosin-based tackifying agent, a second tackifying agent different from the first rosin-based tackifying agent, a first ethylene vinyl acetate copolymer, a butene component having a weight average molecular weight from 30,000 g/mole to 700,000 g/mole and being selected from the group consisting of polyisobutylene, polyisobutene, polybutene, and combinations thereof; and filler.

A method for manufacturing a plurality of vacuum insulating glass (VIG) units, wherein the method comprises providing a plurality of first glass panes, applying a soldering material arranged for subsequent connection with a second glass pane to provide a seal between an outside of the VIG unit and an inside void of the VIG unit, moving the first glass panes comprising the soldering material into a treatment compartment, wherein the treatment compartment is pre-heated, drying the soldering material in a heating step by evaporating solvent, wherein the heating is forced convection heating, moving the first glass panes to a cooling compartment, cooling first glass panes and the soldering material thereon in a cooling step, wherein the cooling is by forced convection cooling, moving the first glass panes from the cooling compartment, and subsequently connecting the first glass panes to second glass panes using the dried soldering material.

A single axis application unit for processing a glass workpiece includes a workpiece supporting table, an applicator movable on a traveler shiftable along a first linear axis and a central suction unit that is activateable to grip the glass workpiece that travels along a second linear axis oriented generally perpendicular to the first linear axis. A central suction unit brake selectively secures the central suction unit both rotationally and translationally. The central suction unit is freely moveable both translationally and rotationally when the central suction unit brake is released. A mid-peripheral suction unit is located at a fixed location remote from the central suction unit and selectively activateable to grip the glass workpiece to hold the glass workpiece in a fixed orientation. A corner suction gripper is movable with the applicator parallel to the first linear axis, and is selectively activateable to grip the glass workpiece.

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.

An insulating glass unit and a method of forming same comprising a pair of glass panes in a parallel, spaced apart relation, at least one edge spacer and at least a primary sealant located between adjacent edges of the pair of panes to provide an integral sealed unit defining a space therebetween, and at least one transparent film located within the space between the pair of glass panes, said at least one transparent film secured to one of a support structure and the at least one edge spacer, wherein the film is positioned in a spaced apart parallel relationship between the pair of glass panes, and wherein the film is heat shrunk to a tensioned state prior to positioning of the film between the pair of glass panes.

Improvements in or relating to transparent units (such as glazing units, which may also be referred to as insulating glass units) and their methods of manufacture are disclosed. Each transparent unit comprises first and second panes of transparent material each having an outwardly facing side and an inwardly facing side. Each inwardly facing side is at least partially coated with a reactive interlayer made by the application of a reactive interlayer coating composition. The inwardly facing side of the first and second panes of transparent material are spaced apart partially or totally by a transparent spacer made of a pre-cured condensation curable material or a substantially pre-cured condensation curable material adhered to the inwardly facing side of the first and second panes of transparent material by way of the reactive interlayers. In various embodiments, the pre-cured condensation curable material is a silicone based material.

The present disclosure provides an apparatus for pasting a warm edge spacer, comprising: a first and a second conveying mechanism; a rotating mechanism for driving the second conveying mechanism to rotate; a conveying tunnel set in both the first conveying mechanism and the second conveying mechanism; a pressing unit set at the front of the second conveying mechanism; a cutting unit set at the side of the pressing unit; a positioning unit set at the lower side of the pressing unit in correspondence to the exit of the warm edge spacer, and an auxiliary pressing unit set at the upper side of the pressing unit; a pasting unit set at the other side of the warm edge spacer which is opposite to glass. The apparatus for pasting a warm edge spacer can implement automatic pasting operation of warm edge spacer.

A system for producing an insulating glass unit having at least two lites separated by a spacer material is disclosed. The system includes a heating mechanism to heat one or both of the lites to achieve rapid wet-out of the spacer material on the lites. A method of producing an insulating glass unit including heating one or both lites is further disclosed.

A polyurethane glass sealant is made by reacting a poly(1,2-butylene oxide) polymer with a chain extender and a polyisocyanate. The poly(1,2-butylene oxide) polymer may be used as a mixture with up to 50% by weight of other polyols, including castor oil. The sealant is especially useful as a secondary sealant for an insulated glass unit (IGU).