Application:
Used for crust forming proof agent of oxidation drying coatings, viscosity stabilizer of oxidation drying adhesive, sealant of isocyanate and cross linker of organic silicon.
Dosage:
0.1-0.5% of total weight of coatings, and the actual dosage is subject to coating formula and experimental effect.
Package:
upon clients' requests.
Example 1. MEKO-end-capped PU Coating
1) Preparation of MEKO-end-capped PU prepolymer solution
Formulation:
Parts(w/w) |
||
a. |
α,α,α',α'-Tetramethyl Xylylene Diisocyanate | 259 |
b. |
Carbitol Acetate | 400 |
c. |
Trimethylolpropane | 28 |
d. |
Polybutanol | 212 |
e. |
Dibutyltin Dilaurate | 0.1 |
f. |
MEKO | 101 |
Add ingredients a,b, c,d and e into a reactor fitted with a stirrer, heater, thermometer and gas inlet. Heat to 80~100 while stirring under nitrogen and keep for 3hr to allow max. PU prepolymer yield, that is NCO% reaches 8.9%. Add MEKO (ingredient f) into the solution and react at 60~80 for 3hr until NCO peaks disappear by IR detection. Thus MEKO end-capped PU prepolymer solution, with 60% of solid content, is obtained.
2) Preparation of the coating
Formulation:
g. |
MEKO end-capped PU prepolymer solution | 100 |
h. |
Carbon Black | 1 |
i. |
Titanium Dioxide | 5 |
j. |
Calcium Carbonate | 80 |
k. |
Aromatic Naphtha (bp. 100~200) | 30 |
Place the above ingredients in a mixer, and mix thoroughly to achieve a uniform suspension.
Characteristics and Use:
Formulation:
Water | 8.33 |
Soy Lecithin Emulsion (Centromix LP-1421) | 9.0 |
Linaqua | 8.10 |
Titanium Dioxide | 34.99 |
Al powder or Zinc Oxide 427W | 46.7 |
Linseed Oil | 22.46 |
Talc | 23.75 |
Phenyl Alkylsulfonate | 21.65 |
Water | 8.33 |
Linaqua | 8.10 |
SynvarexlA-5-97 | 7.7 |
6% Cobalt Caprylate | 7.4 |
6% Magnesium Naphthenate | 7.97 |
24% Cobalt Naphthenate | 9.7 |
8% Zinc Naphthenate | 8.00 |
MEKO | 7.65 |
Water | 8.33 |
Disperse Centromix LP-1421 in water. Add Linaqua slowly while stirring. Then add the next 5 ingredients in sequence as listed above. Mill the resulting solution to 4 Hegman (50.00 um). Add the remaining ingredients in sequence and stir thoroughly.
Characteristics and Use:
Example 3. Solventborne Interior Coatng
Formulation 1: Low-gloss white alkyd coating
Titanium Dioxide OR-540 | 34.15 |
Calcium Carbonate | 22.57 |
Zinc Oxide (Kaclox 515) | 46.70 |
5% Calcium Naphthenate | 7.90 |
Beckosol P-470-60 Alkyd Resin | 7.73 |
Solvent Oil (bp. 150~200) | 6.53 |
Levelling Agent | 7.15 |
Solvent Oil (bp. 150~200) | 6.52 |
6% Colbalt Naphthenate | 8.16 |
MEKO | 7.65 |
Place the first 6 ingredients in a colloid mill and reduce the particle size to 6 Hegman (25.00um). Add the remaining ingredients in sequence while stirring and mix thoroughly.
Characteristics and Use:
Formulation 2: White glossy lacquer
Titanium Dioxide R-750 | 34.15 |
Zinc Oxide Kadox515 | 46.70 |
4% Calcium Naphthenate | 7.85 |
Thixcin | 8.51 |
Backosol P-470-70 Alkyd Resin | 7.86 |
Solvent Oil (bp. 150~200) | 6.52 |
Backosol P-470-70 Alkyd Resin | 7.86 |
Solvent Oil | 6.52 |
6% Colbalt Naphthenate | 7.95 |
Violet Dispersing Agent | 8.50 |
MEKO | 7.65 |
Place the first 6 ingredients in a colloid mill and reduce the particle size to 6 Hegman (25.00um). Add the remaining ingredients in sequence while stirring and mix thoroughly.
Characteristics and Use:
Example 4. White Chlorinated Rubber/Alkyd Lacquer
Formulation:
I Parts (w/w) |
II Parts (w/w) |
|
5~20mpa.S Chlorinated Rubber | - |
- |
Medium-oil Soy Alkyd (70%) | 8.5 |
8.9 |
Long-oil Linseed Alkyd (70%) | 30.4 |
27.0 |
Titanium Dioxide (Rutile) | 18.4 |
19.40 |
Cobalt Naphthenate | 0.2 |
0.2 |
Lead Naphthenate | 0.4 |
0.4 |
MEKO | 0.1 |
0.1 |
Petroleum Solvent | 8.0 |
11.0 |
Aromatic Solvent | 34.0 |
33.0 |
Total | 100 |
100 |
Example 5. Chlorinated Rubber Road Paint
Formulation:
I
Parts (w/w) |
II
Parts (w/w) |
III
Parts (w/w) |
|
20mpa.s Chlorinated Rubber | 8.6 |
6.1 |
6.5 |
Long-oil Alkyd (60%) | 6.6 |
16.5 |
14.0 |
Chlorinated Paraffin (70%) | - |
- |
- |
Chlorinated Paraffin (42%) | 6.4 |
- |
- |
Titanium Dioxide (Rutile) | 17.1 |
17.6 |
9.6 |
Zinc Oxide | 4.3 |
- |
- |
Blanc Fix | - |
14.0 |
19.2 |
Talc | 12.0 |
14.1 |
9.6 |
Calcium Carbonate Heavy | 10.8 |
- |
9.6 |
Modified Bentonite | 0. 5 |
0.5 |
0.5 |
Epichlorohydrin | 0. 3 |
0.2 |
0.5 |
Cobalt Naphthenate | 0.1 |
0.2 |
0.1 |
Lead Naphthenate | 0.2 |
0.4 |
0.2 |
Butanone | 29.8 |
- |
- |
Toluene | - |
30.1 |
20.7 |
Ethyl Acetate | 3.0 |
- |
- |
MEKO | 0.3 |
0.3 |
0.3 |
Total | 100 |
100 |
100 |
Example 6. Alkyd Lacquer
Formulation (parts w/w):
Black |
Red |
Green |
Light Grey |
Sky Blue |
White |
|
Alkyd (50%) | 88.3 |
79.8 |
72.3 |
70.00 |
70.25 |
66.40 |
Carbon Black (Hard) | 2.00 |
- |
- |
- |
- |
- |
Titanium Dioxide (Rutile) | - |
- |
- |
19.20 |
18.80 |
25.40 |
Lemon Yellow | - |
- |
11.40 |
0.39 |
- |
- |
Iron Blue | - |
- |
2.40 |
0.20 |
1.20 |
- |
Carbon Black (Soft) | - |
- |
- |
0.25 |
- |
- |
Toluidine Red | - |
8.00 |
- |
- |
- |
- |
French Blue | - |
- |
- |
- |
- |
0.18 |
Medium Chrome Yellow | - |
- |
1.9 |
- |
- |
- |
Lead Oxide | 0.08 |
0.1 |
0.07 |
0.07 |
0.06 |
0.07 |
Lead Naphthenate (12%) | 1.20 |
1.5 |
1.40 |
2.00 |
2.00 |
2.00 |
Cobalt Naphthenate (3%) | 1.2 |
0.30 |
0.40 |
0.20 |
0.60 |
0.80 |
Manganese Naphthenate (3%) | 0.60 |
0.60 |
0.40 |
0.80 |
0.60 |
0.20 |
Zinc Naphthenate (3%) | 0.78 |
0.80 |
1.10 |
0.94 |
0.80 |
0.80 |
Calcium Naphthenate (2%) | 0.85 |
0.90 |
0.82 |
1.24 |
1.20 |
1.20 |
Silicone Oil (1%) | - |
- |
0.40 |
0.40 |
0.40 |
- |
MEKO(50%) | 0.41 |
0.41 |
0.41 |
0.41 |
0.41 |
0.41 |
Xylene |
||||||
PVC, % | 2.69 |
12.4 |
9.2 |
15.9 |
14.4 |
16.4 |