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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°ś£¨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
Products Appearance Nitrogen content% Flash Point Free acid % Water content Moisture content
SS White powder 10.7~11.2% 180°„C below 0.04% < 4% 30  2%

Product grade Viscosity (sec.) Packing
SS 18~25CPS 1.7~2.2 120kgs
SS 1/8" 1.7~2.9 120kgs
SS 30~35CPS 2.7~3.1 120kgs
SS 1/4" 3.0~5.9 100,120kgs
SS 1/2" 3.0~5.0 100,120kgs

MALEIC RESIN 

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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