US 12,252,438 B2
Joint adhesive for cellular glass insulation
Helen Huang, New Albany, OH (US); and Steven Badger, Pittsburgh, PA (US)
Assigned to Owens Corning Intellectual Capital, LLC, Toledo, OH (US)
Filed by Owens Corning Intellectual Capital, LLC, Toledo, OH (US)
Filed on Mar. 8, 2022, as Appl. No. 17/688,974.
Claims priority of provisional application 63/158,977, filed on Mar. 10, 2021.
Prior Publication US 2022/0289627 A1, Sep. 15, 2022
Int. Cl. C03C 27/04 (2006.01); C03C 11/00 (2006.01)
CPC C03C 27/048 (2013.01) [C03C 11/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A cellular glass insulation system for insulating a pipe that operates at cryogenic temperatures, the system comprising a plurality of cellular glass insulation segments and an amorphous poly alpha-olefin (APAO) adhesive in an interface between adjacent cellular glass insulation segments;
wherein each of the cellular glass insulation segments comprises two side joint sections that extend the length of the segment, an inner pipe bore, and two end joint sections; and
wherein the APAO adhesive meets at least one of the following criteria:
a) has an onset of melt of from about 20° C. to about 75° C.; and
b) has a differential movement between the adhesive and the cellular glass of from about 10 mm/m to about 25 mm/m.