Abstract: A 100% solids polyurethane adhesive composition for bonding polymeric roofing materials to roof-deck substrates is provided which includes two components. The first component comprises a monomeric or polymeric diisocyanate, or a polyurethane prepolymer formed by the reaction of the monomeric or polymeric diisocyanate with a polyol. The second component comprises a polyol selected from the group consisting of a polyether or polyester polyol, an alkanolamine diol, a hydroxyl-terminated homopolymer of polybutadiene, and mixtures thereof. The first and second components are combined such that the ratio of isocyanate groups in the first component to the ratio of hydroxyl groups in the second component is from about 0.5:1 to 1.5:1.

Abstract: An adsorbent containing composition for use in an insulating glass unit is provided. The composition includes a depolymerized butyl rubber having a low viscosity average molecular weight which is a carrier for moisture and volatile organic chemical adsorbing materials. The composition is economical to produce and results in a composition which effectively desiccates a sealed insulating glass unit without the problem of chemical fogging.