Resins & Additives
Ethylcellulose (EC)
Ethylcellulose (EC), taking natural cellulose as the main raw material, is organic-soluble cellulose ether produced by a series of chemical reactions, belonging to nonionic cellulose ethers. EC can be widely used in coating industry and medicine.
Molecular formula: [C6H7O2(OC2H5)x(OH)3-x]n In which:x—degree of substitution; n—degree of polymerization.
1.Main Specifications of Industrial EC are as follows.
| Product Types | |||
| Specifications | K Types | N Types | T Types |
| Ethoxyl content, % | 45.0 ~ 47.9 | 48.0 ~ 49.5 | ≥ 49.6 |
| Viscosity(1:4ethanal-toluene, 5%)mPa.s | See Viscosity Specification Table | ||
| Solubility, % | ≥99.0 | ||
| Ash content, % | ≤0.3 | ||
| Moisture content, % | ≤0.3 | ||
| Heat resistance (120℃，16h) | Non yellowing, caking and coking | ||
Viscosity specifications of Industrial EC are as follows
| Product models | Viscosity arrange, mPa.s | Product models | Viscosity range, mPa.s |
| 6 | 5~8 | 100 | 90~110 |
| 10 | 8~12 | 110 | 100~120 |
| 15 | 12~16 | 150 | 135~165 |
| 20 | 18~24 | 200 | 180~220 |
| 35 | 31~39 | 250 | 220~270 |
| 50 | 45~55 | 300 | 270~330 |
| 70 | 63~77 |
2.Main specifications of EC for medicine are as follows:
| Product Types | |||
| Specifications | K Types | N Types | T Types |
| Ethoxyl content, % | 44.0 ~ 47.9 | 48.0 ~ 49.5 | 49.6 ~ 51.0 |
| Viscosity(1:4ethanal-toluene, 5%)mPa.s | See Viscosity Specification Table | ||
| Ignited residue, % ≤ | 0.4 | ||
| Loss after drying, % ≤ | 3.0 | ||
| Heavy metal, % ≤ | 0.0020 | ||
| As, % ≤ | 0.0003 | ||
Viscosity specifications of EC for medicine are as follows:
| Product models | Viscosity arrange, mPa.s | Product models | Viscosity range, mPa.s |
| 7 | 5.6~9.6 | 70 | 63~77 |
| 10 | 9~11 | 100 | 90~110 |
| 15 | 13.5~16.5 | 150 | 135~165 |
| 20 | 18~22 | 200 | 180~220 |
| 30 | 27~33 | 250 | 225~275 |
| 50 | 45~55 | 300 | 270~330 |
SS & RS NITROCELLULOSE
We specialized in manufacturing a wide variety of coating chemicals including nitrocellulose, pigment, resin, etc. With the characteristics of fast drying, good hardness, and brightness, nitrocellulose is widely utilized in coating, lacquer, printing ink and various decorative films. It offers excellent protection and brilliance for wooden furniture, athletic facilities, cosmetics, metal and leather products. Pigment is widely used to make colors of the surfaces and materials. Rosin resin and its derivatives, having great adhesion and high compatibility in coating, are utilized to strengthen the adhesion of coating. Currently, maleic resin series are available. Compared to cotton linter pulp, wood pulp is relatively environmental friendly since it consumes less water and energy, and needs no pesticides.
| Product | Softening point | Acid value | Application |
| Maleic resin | 128 3 | 35 3 | Wood primers, Top coating, Lacquer |
| Maleic resin | 135 3 | 42 3 | Printing Ink, Hammer tone, |
| Maleic resin | 130 2 | 38 2 | Wood primers, Top coating, Lacquers |
| Maleic resin | 105 3 | 10 2 | Heat-melt adhesive, Traffic paints |
| Maleic resin | 145 3 | 220 10 | Alcohol-solubility type printing ink, Printing ink for PCB |
| Maleic resin | 120 3 | 20 3 | Paper coating |
CHLORINATED POLYPROPYLENE (CLPP)
| Item | ||||||||
| Adhesive-I | Adhesive-II | Printing Inks-I | Printing Inks-II | coating-I | coating-II | coating-III | coating-IV | |
| % Cl content | 25-30 | 30-40 | 28-32 | 32-35 | 20-30 | 30-40 | 40-55 | 55-65 |
| mPas Viscosity | 800-2000 | 300-800 | 200-600 | 200-600 | ＜100 | ＜100 | ＜100 | ＜100 |
| pH value≥ | 6.0 | |||||||
| transparency ≤ | 0.06 | |||||||
| Finenessÿμm≤ | 30 | |||||||
| Appearance | pale yellow or light yellow granular solid | |||||||
CLPP is an effective adhesive for BOPP and effective binder for printing inks used on BOPP films. And it is also used as adhesive for PP and PE and as brightener for paints.
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