Regalite R9100 Hydrocarbon Resin is a partially hydrogenated, water-white resin with a unique balance of aliphatic-aromatic properties. This characteristic provides the resin with excellent tackification properties in SIS (styrene-isoprene-styrene) and SBS (styrene-butadiene-styrene) block copolymers whilst retaining high cohesive strength in the hot melt adhesive, due to the resin's limited affinity for the styrene end-block in the block copolymer. Regalite R9100 Hydrocarbon Resin has an excellent resistance to thermal and oxidative degradation. The resin also provides for low melt viscosities in hot melt adhesives due to its molecular weight and structure, making it an idealchoice for sprayable adhesives. The polar characteristic of Regalite R9100 Hydrocarbon Resin, due to its unique structure, results in excellent adhesion to low surface energy substrates such as polyethylene.

Soluble at all useful proportions in aliphatic, aromatic, and chlorinated hydrocarbons. Insoluble in alcohols and water. Compatible at all ratios, or in limited but practically useful proportions, with SBS (styrene-butadiene-styrene) block copolymers, SIS (styrene-isoprene-styrene) block copolymers, EVA (ethylene-vinyl acetate) copolymers and APAO (amorphous poly-alpha olefins).

Regalite R9100 Hydrocarbon Resin is pastillated and packed in polyethylene bags of 20 kg net, and supplied on shrink-wrapped pallets of 50 bags (1000 kg) each, from Eastman’s facilities in the Netherlands and from warehouses located in Europe.

Flaked and pastillated forms of resins may fuse, block or lump under any of the following conditions: (1) in hot weather climates, (2) if stored near steam pipes or other sources of heat and (3) upon prolonged storage. Inside storage is recommended. Storage at temperatures above 30 °C should be avoided. Resins are prone to gradual oxidation, some more so than others. This could result in darkening and/or it could have an adverse effect on the solubility of the resin in organic solvents or on its compatibility with polymers. Accordingly, it is recommended that strict control of inventory be observed at all times, taking care that the oldest material is used first. Regalite R9100 Hydrocarbon Resin material will remain within product specification limits, as mentioned under the heading "Product Specifications" (overleaf), for a period of at least twelve months after shipment from Eastman's production facilities in the Netherlands, provided storage conditions outlined in this data sheet are observed. However, as we can neither anticipate the conditions under which the resin is processed nor the end use applications for which it is used, we recommend that the material be tested upon receipt.