If your attic temperature gets up to about 250 degrees, the particle board -- and all the other wood around -- might spontaneously ignite. Short of that you are good. The glue is made to endure in the range of temperatures that are likely in your attic. AS LONG AS IT STAYS DRY.
I found the following site talking about how wood glue is tested. the tests involve soaking a glue joint for several hours, then subjecting it to 120 degrees heat for many hours. The industry standards are expected to hold under those conditions, which go way beyond what could occur in your attic. Go ahead and put it up there. if it DOES fail, blame Canada.
Type I testing involves cutting the 6" by 6" assemblies into 1" by 3" specimens, boiling them for 4 hours, then baking the specimens in a 145°F oven for 20 hours. They are boiled for an additional 4 hours, then immediately cooled using running water. The specimens are sheared while wet, and the bonds must pass certain strength and wood failure requirements to pass the Type I specification.
Type II testing involves cutting the 6" by 6" assemblies into 2" by 5" specimens, soaking them for 4 hours, then baking the specimens in a 120°F oven for 19 hours. This is repeated for a total of three cycles, and the bonds must not delaminate to pass the Type II specification.
The product you bought might not be made to American product standards. But I've lived in places where they make wood glue out of animal carcases. That stuff stinks to high heaven, but it makes a great bond.