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Polyurethane Additives |
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MOCA-4,4¡¯-methylene-bis-(2-chloroaniline)
MDA-4,4¡¯-diaminodiphenyl methane |
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REMARKS£º |
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MOCA, also called as MBOCA, is a curative(cross-link agent) for TDI or TDI propolymer based polyurethane elastomers.
It's widely used in PU wheels, rolls, sealant, sport courts and other elastomers. |
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MDA is also a curative for casting polyurethane elsatomers. Using it
along with MOCA can shorten curing time. |
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1. MOCA |
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Chemical Name: |
4,4'-Methylene-bis-(2-chloroaniline) |
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CAS NO.: |
101-14-4 |
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Structural Formula: |
 |
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Empirical Formula: |
C13H12Cl2N2 |
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Molecular Weight: |
267 |
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Appearance: |
small light yellow round tablets. |
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Melting Point: |
98˚C
min. |
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Moisture: |
0.3£¥
max. |
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Insolubles in
Acetone: |
0.04£¥
max. |
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Clarify: |
clear and transparent in Acetone
solution |
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Amine Value: |
7.4-7.6(m.mol/g) |
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Free Aniline: |
1.0£¥
max. |
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Color(gardner): |
4 max. |
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Specific Gravity: |
1.25 |
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Vapor Pressure: |
1¡Á10-5mmHg
at 25˚C |
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Packing: |
in 50 kgs net fibre drums & total
15MT in a 20' FCl. |
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2. MOCA(Super Grade) |
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Chemical Name: |
4,4'-Methylene-bis-(2-chloroaniline) |
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CAS NO.: |
101-14-4 |
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Structural Formula: |
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Empirical Formula: |
C13H12Cl2N2 |
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Molecular Weight: |
267 |
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Appearance: |
white powder |
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Melting Point: |
102-108˚C
min. |
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Moisture: |
0.3£¥
max. |
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Insolubles in
Acetone: |
0.04£¥
max. |
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Clarify: |
clear and transparent in Acetone
solution |
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Amine Value: |
7.4-7.6(m.mol/g) |
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Free Aniline: |
1.0£¥
max. |
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Color(gardner): |
2 max. |
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Specific Gravity: |
1.25 |
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Vapor Pressure: |
1¡Á10-5mmHg
at 25˚C |
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Packing: |
in 40 kgs net fibre drums. |
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3. MDA |
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Chemical Name: |
4,4'-Methylene-di-aniline |
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CAS NO.: |
101-77-9 |
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Structural Formula: |
 |
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Empirical Formula: |
C13H14N2 |
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Molecular Weight: |
198.27 |
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Appearance: |
white, with a little yellowish
flake |
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Melting Point: |
89-91˚C min. |
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Moisture: |
0.3£¥
max. |
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Assay(at total amines): |
99£¥
min. |
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Purity(by HPLC): |
96£¥
min. |
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Packing: |
in 25 kgs net fibre drums & total
9MT in a 20' FCl. |
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