|Foreverest® Extra Light Color Hydrogenated Rosinates (CHRDs) are modified rosin derivative. This group has light color appearance in hazen unit, which are mainly used in adhesive industry, especially used in screen protection film, medicinal patch, diaper adhesives, PSA and HMA. Based on refined hydrogenated rosin, Extra light color rosinates through the process on pretreatment, steam distillation, vacuum steam distillation and vacuum distillation to separate the crude oil, resin acid, fatty acid and oxide resins. Then after esterification, this group appears light color, low odor, excellent heating resistance, weathering resistance, high softening point and other characteristics.|
The hydrogenation degree can be determined by the content of Tetrahydro-resin acid/ester and Dihydro-resin acid/ester. CHRDs show high level of hydrogenation (see Table1), which represents the latest hydrogenation technology in China, with an eltra-light color and excellent color stability (see Table2).
Table 1.High level hydrogenation performance of CHRDs
|Product||Composition||Tetrahydro-resin acid/ ester, %||Dihydro-resin and Tetrahydro-resin acid/ester, %||Dehydro-resin acid/ester, %|
|400||Colorless fully hydrogenated rosin||40 to 60||92 min||10 max|
|GEHR100D/GEHR100H||Colorless glyceryl hydrogenated rosinate||35 to 40||92 min||10 max|
|PEHR100D/PEHR100E||Colorless pentaerythritol hydrogenated rosinate||35 to 40||92 min||10 max|
Table 2.Extra light color stability of CHRDs
|Product||Color, Hazen Unit||Color Stability, @180 to 200°C, 8h, Hazen Unit|
|400||50 to 100||100 max|
|GEHR100D/GEHR100H||150 max or 200 max||150 max or 200 max|
|PEHR100D/PEHR100E||150 max or 200 max||150 max or 200 max|
ADVANTAGES OVER OTHER RESINS
Compared to other tackifiering resins, CHRDs provide an optimum combination of adhesion, clarity and stability, all important attributes for formulating high-end adhesives. (See Table3).
Table 3.CHRDs compared with other resins
|Advantages over non-hydrogenated rosin resins and partially-hydrogenated rosin resins||Advantages over Hydrogenated hydrocarbon resins|
|1. lighter color;
2. Little or no skin sensitizing;
3. improved stability and color retention;
4. better aging resistance;
5. less UV absorption, suitable for UV curable polymer based adhesives;
|1. low-or-no VOC;
2. adhere well to low-energy surfaces;
3. bio-based, environmentally Friendly;
4. more polar and narrower in molecular weight, wider compatibility with almost all polymers, especially suitable for acrylic polymers;
END USE & ALTERNATIVES
Foreverest® Colorless Hydrogenated Rosin Derivatives (CHRDs) are mainly used as tackifiers in adhesives and sealants, especially for acrylic adhesives, while 400 could also be used in soldering fluxes. They are excellent alternatives to Arakawa® products and Eastman® products (see Table4).
Table 4.Alternatives of CHRDs
|GEHR100D/GEHR100H||Adhesives & Sealants||Arakawa® Product
|PEHR100D/PEHR100E||Adhesives & Sealants||Arakawa® Product|
(1) Arakawa is the trademark of Arakawa Chemical Industries,Ltd.
(2) Eastman is the trademark of Eastman Chemical Company
Colorless Fully Hydrogenated Rosin
Refined from hydrogenated rosin or high-hydrogenated rosin that are eliminated foreign matter. With the benefit of colorless, is applied as solid or liquid solder flux, and the raw material of light-colored rosin resin and hot melt adhesives.
Colorless Glyceryl Hydrogenated Rosinate
GEHR100D TDS | GEHR100H TDS
A kind of super light color tackifying rosin resin, which is esterified from refined hydrogenated rosin and edible glycerol, and through series combined technologies units of catalytic hydrogenation.
Colorless Pentaerythritol Hydrogenated Rosinate
PEHR100D TDS | PEHR100E TDS
A kind of super light color tackifying polyols resin, which is esterified from refined gum rosin by pentaerythritol, and through series combined technologies units of catalytic hydrogenation.
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