Hydrocarbon resin has widely used in a lot of fields,and it is very necessary for us to learn more information of hydrocarbon resin if we want to broaden our knowledge. Now,let's talk about the knowledge of hydrocarbon resin categories.

C5, Aliphatic Resins,C9, Aromatic Resins,C5/C9, Aliphatic/Aromatic Resins are three main categories of hydrocarbon resin. Specific content as follows:

First of all,C5, Aliphatic Resins

In general,Aliphatic Resins are polymers of monomers with five carbons. Basic C5 aliphatic resins have Gardner colors between 1.5 and 6 (from light yellow to light brown) and are mostly used to tackify aliphatic polymers, especially natural rubber, EVA, SIS and APO. And Hydrogenated C5, Aliphatic Resins are the sub-category of  C5 aliphatic resins,which are basic C5 hydrocarbon tackifers that have been hydrogenated to improve their color and thermal stability.

Second,C9, Aromatic Resins

Generally,C9 Aromatic Resins are polymers of nine-carbon aromatic monomers,which are based on aromatic feedstocks that undergo very little refining prior to the polymerization of the resin. C9 Aromatic Resins are usually dark in color within typical Gardner color of 6 to 10 (dark yellow to dark brown) and they are widely applied in EVA-based adhesives, contact adhesive for footwear, printing inks, sealants, and paints. What's morem, C9 liquid resins are especially applied in flooring adhesives. As a class, C9 resins have a distinctive aromatic odor. There are two sub-categories of C9 aromatic tackifiers, each with distinctive properties. Pure Monomer C9, Aromatic Resins and Hydrogenated C9, Aromatic Resins are sub-categories of C9 Aromatic Resins.

Third,C5/C9, Aliphatic/Aromatic Resins

C5/C9 Aliphatic/Aromatic Resins are generally C5 tackifiers co-polymerized with aromatic monomers,which are excellent tackifiers for use in EVA, SBS, and natural rubber polymers. This kind of hydrocarbon resin can also be applied in SIS-based HMPSA to provide low melt viscosities with an optimum balance between cohesion and adhesion. Sometimes the slightly aromatic modified C5 resins are used in APO to provide limited compatibility resulting in shorter open times. Darker colored, lower cost types are widely applied in packaging HMA depends on EVA. These resins are mostly C9-based co-polymerized with C5 aliphatic monomers.

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