Oil colophony is different from general colophony, cannot use alone, it is normally the property that confuses content to improve all sorts of products in all serves as after with other corporeal answer matchs. Oil colophony basically applies at the following respects: (1) the application in coating industry. In coating industry, oil colophony can be united in wedlock with other colophony, all or the part replaces costly colophony, achieve thereby reduce cost, the burnish that improves a product, hardness, be able to bear or endure ability in swimming, stability and the purpose that fight all sorts of function such as chemical sex. If be in the recipe of phenolic aldehyde varnish, the quantity such as colophony of the oil that use C9 replaces colophony of colophony modified phenolic aldehyde and colophony calcium fat, gotten product still accords with the standard of phenolic aldehyde varnish and phenolic aldehyde enamel, however the 1/4 that cost of C9 oil resinous is less than cost of colophony of colophony modified phenolic aldehyde however, because this can reduce cost greatly. In epoxy resin, get together ammoniac cruel mediates Qi Zhong adds fat colophony of oil of annulus a group of things with common features, check of Qu Shi of the hardness that can improve a product, music, be able to bear or endure lukewarm ability in swimming, be able to bear or endure await the index such as the gender. (2) the application in adhesive. In adhesive, oil colophony basically rises to offer stick the effect that receives a gender. Stick and the main group share of the agent is natural balata, synthetic rubber, polyolefin, polypropylene acerbity vinegar, ethylene a kind basic polymer such as body of copolymerization of ethylene of one acetic acid, oil resinous is joined, can improve these polymer stick receive the stability, denaturation that fight squirm, property such as hear resistance. Be like oil colophony and SBS thermoplastic elastomer embeds paragraph of copolymer to be in toluene undertakes mixture in the mixture dissolvent of personal alkyl, the agglutinant compound that makes can be used make pressure quick felt takes Cheng Yamin to stick receive a dose. (3) the application in rubber industry. C9 oil colophony is in rubber industry, basically use as balata bate additive. Agglutinant and lack of itself of butadiene styrene rubber is hard, join C9 oil colophony, make the molecular catenary of butadiene styrene rubber is broken up, make the product is had thereby very good agglutinant all bate is spent. On the other hand, c9 oil colophony can reduce natural balata to become the dosage of synthetic rubber, below the premise that does not change rubber products quality, reduced cost significantly. In craft respect, working procedure of ripe refine of a unripe glue can be saved after use oil colophony, make manufacturing cycle shortens, economic benefits rises. (4) presswork the application in printing ink. In printing ink, oil colophony basically is to use as join makings. The consistence of a lot of group shares in oil colophony and printing ink is very good, and to all sorts of norms presswork printing ink, corresponding oil colophony releases the requirement of all sorts of index such as sex of gender, the alkali resistance that fight water in order to satisfy profit wet rate, dry speed, dissolvent. Oil colophony machines printing ink, can hold the dispersive position of painty stability for a long time. [The development of modified of 1] C9 oil resinous as recent science and technology, analyse technical progress especially, oil resinous development also entered the period that the technology competes. Abroad produces manufacturer to be on the foundation of the element such as mature economy, technology, environment each, emphasize the performance that improves a product and widen the applied limits of the product. Modified of C9 oil resinous basically develops along two direction: Choose special stock or modified content and cent of C9 heat up in a steamer to undertake copolymerization, namely chemical modified; Be opposite again after colophony is aggregate its hydrogenation, namely hydrogenation modified. [3] chemical modified is passed in C9 colophony in introduce polar group, can raise the consistence of its and polarity compound, dispersive sex, the product can serve as water quality stabilizing agent, thickener to wait. Be like: With Ma Lai acid anhydride undertakes modified to colophony, will make the resin that takes water-solubility: Phenolic kind of material is very easy in combining polymer of vinyl aromatic hydrocarbon, with phenol kind the solvent that material makes activator, improve resinous polarity, promote mix with other resinous dispersive. Colophony of common C9 oil is hydrogenation modified commonly brown or Brown, restricted its application greatly. The original Shuang Jian in hydrogenation hind colophony is destroyed, form single bond, colophony becomes colorless, without special odour, still can raise its to be able to bear or endure await the function such as gender, agglutinate sex, stability, widened its use a field further. This will be the stress that future of oil colophony domain develops.