Abstract: Provided is a brick thermal insulation composite including a surface layer and an internal layer, wherein the surface layer is a brick material, the internal layer is formed with a heat curing foam insulation material, and the heat curing foam insulation material includes a foam resin and a fibrous reinforcement material.

Abstract: Provided are a foam tray for food packaging including a laminated structure of a first foaming layer having an internal moisture absorbent property, and a second foaming layer having an external moisture barrier property, wherein the first foaming layer and the second foaming layer include a biodegradable polymer, and a method for manufacturing the same.

Abstract: Provided is a polyisocyanurate foam formed by polymerizing and foaming a composition comprising: a polyol-based compound, an isocyanate-based compound and a solid flame retardant, wherein a viscosity of the polyol-based compound is 1,000 cps to 100,000 cps at 25° C. In addition, provided is a preparation method for a polyisocyanurate foam, comprising: (a) mixing and stirring a polyol-based compound having a viscosity of 1,000 cps to 100,000 cps at 25° C. and a solid flame retardant; and (b) mixing and stirring the mixture obtained from step (a) with an isocyanate-based compound to polymerize and foam polyisocyanurate.

Abstract: An apparatus for positioning an X-ray imaging system. The apparatus includes an intraoral sensor sized and configured for placement within a human mouth, the intraoral sensor having one or more sensing elements for detecting X-rays, the intraoral sensor further having a signal generation element. Also included is a collimator unit having an X-ray collimator and first and second signal detection elements spaced apart from each other with the X-ray collimator positioned therebetween, the first and second signal detection elements spaced apart from each other, to thereby facilitate aligning of the collimator unit with the one or more sensing elements according to detection of signals from the signal generation element. Further included is an indicator unit located on the collimator unit, the indicator unit configured to display a determination as to whether the collimator unit is properly aligned with respect to the intraoral sensor.