Category: PU Technology
PU Technology
Crestron (formerly Bayer) Desmodur I Isophorone Diisocyanate IPDI 4098-71-9
Chemical name : 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate
Alias : 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate; 5-Isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane; IPDI
IPDI products are mixtures containing 75% cis and 25% trans isomers.
Molecular Formula
C12H18N2O2
Relative Molecular Mass
222.29.CAS
CAS No.
4098-71-9.
EINECS No.
223-861-6
Physical and Chemical Properties
Isophorone Diisocyanate IPDI is colorless or light yellow liquid with camphor-like odor, completely miscible with esters, ketones, ethers, aromatic hydrocarbons and aliphatic hydrocarbons and other organic solvents.
Density
1.056
Melting point
– 60°C
Boiling point
158°C (15 mmHg)
Refractive index
1.484
Flash Point
>110°C
Water Solubility
<0.1 g/100 mL at 25°C
Performance Indicators
The specifications for IPDI products (brand name Desmodur I) are:
Purity
≥99.5 %
Mass fraction of NCO
≥37.5%
Color (Hazen)
≤30
Hydrolyzed chlorine
≤200 mg/kg
Total chlorine
≤400 mg/kg
Viscosity (25℃)
Approx. 10 mPa-s.
Safety data
Hazardous material symbol
T;N
Hazardous category code
r22;r36/37/38;r42/43;r51/53
Safety instructions
s26;s28;s38;s45;s61
Dangerous Goods Transportation Number
UN 2290/2906
Properties and Uses
IPDI is an aliphatic isocyanate, isophorone diisocyanate IPDI is also a kind of cycloaliphatic isocyanate, isophorone diisocyanate IPDI reactivity is lower than the aromatic isocyanate, and the vapor pressure is also lower. The reactivity of 2 NCO groups in isophorone diisocyanate IPDI molecule is different, because the primary NCO in IPDI molecule is hindered by the cyclohexane ring and a-substituted methyl group, which makes the reactivity of the secondary NCO group connected to cyclohexane is 1.3-2.5 times higher than that of the primary NCO; the reactivity of IPDI and hydroxyl group is 4-5 times faster than that of HDI and hydroxyl group.
The polyurethane resin made of isophorone diisocyanate IPDI has excellent light stability and chemical resistance, isophorone diisocyanate IPDI is generally used in the manufacture of high-grade polyurethane resins, such as light-resistant and marble-resistant polyurethane coatings, abrasion-resistant and hydrolysis-resistant polyurethane elastomers, and isophorone diisocyanate IPDI is also used in the manufacture of non-yellowing microcellular polyurethane foam.
Lanxess Lanxess Trixene DP9C/290 HDI trimer water-based closed crosslinker
Water-based Blocked cross-linking agent
Product name |
Type |
Sealer |
Ion type |
PH |
Solid content (%) |
Thinner |
BI 200 |
HDI trimer |
DMP |
Anions |
7-8 |
40 |
NMP |
BI 201 |
HDI trimer |
DMP |
Anions |
7-9 |
40 |
DME |
BI 220 |
HDI trimer |
DMP |
Non-ionic |
5-8 |
40 |
DIBA |
DP9C/213 |
HDI trimer |
Caprolactam |
Anions |
7-9 |
40 |
DME |
DP9C/235 |
HDI trimer |
MEKO |
Anions |
5-8 |
41.5 |
DIBA |
DP9C/290 |
HDI trimer |
DMP |
cation |
4-5 |
40 |
DME |
DP9C/323 |
HDI&IPDI trimer |
DMP |
Non-ionic |
5-8 |
40 |
DME |
DP9C/347 |
HDI Biuret |
DMP |
Non-ionic |
5-8 |
40 |
DIBA |
Lanxess Lanxess Trixene DP9C/235 HDI trimer water-based closed cross-linking agent
Water-based Blocked cross-linking agent
Product name |
Type |
Sealer |
Ion type |
PH |
Solid content (%) |
Thinner |
BI 200 |
HDI trimer |
DMP |
Anions |
7-8 |
40 |
NMP |
BI 201 |
HDI trimer |
DMP |
Anions |
7-9 |
40 |
DME |
BI 220 |
HDI trimer |
DMP |
Non-ionic |
5-8 |
40 |
DIBA |
DP9C/213 |
HDI trimer |
Caprolactam |
Anions |
7-9 |
40 |
DME |
DP9C/235 |
HDI trimer |
MEKO |
Anions |
5-8 |
41.5 |
DIBA |
DP9C/290 |
HDI trimer |
DMP |
cation |
4-5 |
40 |
DME |
DP9C/323 |
HDI&IPDI trimer |
DMP |
Non-ionic |
5-8 |
40 |
DME |
DP9C/347 |
HDI Biuret |
DMP |
Non-ionic |
5-8 |
40 |
DIBA |
PU-655 HDI hydrophilic aliphatic polyisocyanate
PU-655 HDI hydrophilic aliphatic polyisocyanate Curing agent component for aqueous two-component polyurethane systems
A-A+
Model No. PU-655
Type Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI)
Curing agent component for aqueous two-component polyurethane systems
Description of PU-655
PU-655 is a crosslinking agent for aqueous systems, which require good binding stability and chemical resistance.
Uses
Due to the balance between moderate hydrophilicity and high functionality, waterborne two-component polyurethane coatings prepared with PU-655 are characterized by fast drying and curing, high final hardness, and excellent chemical resistance.PU-655 is also used as a cross-linking additive for aqueous polyols and most neutral aqueous polymer dispersions (e.g., polyurethanes, polyvinyl acetates, polyacrylates, and synthetic polymers). PU-655 can also be used as a crosslinking additive in most neutral aqueous polymer dispersions such as polyurethanes, polyvinyl acetates, polyacrylates and synthetic rubber dispersions.
Product Specification
Properties
Numerical value
NCO content (%)
20.3-21.3
Viscosity (23℃, mPa.s)
3500±1000
Hazen color value
<60
HDI monomer content (%)
<0.1
Density (g/cm³)
Approx. 1.16
Flash point (℃)
Approx. 192
Storage
Store in airtight containers
Recommended storage temperature: 0-30 °C.
Protection against moisture, heat and foreign substances
General information: Hydrophilic isocyanates are very sensitive to moisture and react with water to form
carbon dioxide and water-insoluble urea. Therefore, they must be stored in airtight containers. All forms of water (humid air, solvents, wet containers)
must be prevented because the production of carbon dioxide can lead to a dangerous increase in pressure. Storage at high temperatures causes a slight increase in viscosity and color.
Material Safety
The material safety data sheet for this product is available on request.
HF-1568 Aliphatic polyisocyanates (HDI trimers)
HF-1568 Aliphatic polyisocyanate (HDI trimer) Used for automotive OEM paints, automotive refinishing, transportation, industrial products, and plastics.
Model HF-1568
Type Aliphatic polyisocyanate (HDI trimer)
Application Used as a curing agent component in light-resistant polyurethane coatings. Used in automotive original paint, automotive refinishing, transportation, industrial products and plastic finishing.
Main Characteristics
-Excellent chemical and weathering resistance;
-Outstanding light retention and excellent mechanical properties.
Product Specification
Properties
Numerical value
Non-volatile component (%)
68±1
NCO content (%)
15
Flash point (℃)
About 50
Color value
≤40
Viscosity (25℃, mPa.s)
About 500
HDI monomer (%)
≤0.15
Recommendations for use
With polyacrylate or polyester polyol, the coating system configured is suitable for self-drying or baking.
Storage
Sensitive to moisture and should therefore be stored in the original airtight containers. The product has a shelf life of at least 6 months when stored under proper conditions at room temperature.
Material Safety
Material Safety Data Sheets for this product are available on request.
HF-3550 Low Temperature Unsealing Single Component HDI Isocyanate Curing Agent
Model HF-3550
Type Low-temperature unsealing one-component HDI isocyanate curing agent
Applications Various types of polyurethane type one-component baking type coatings, inks, adhesives.
Main Characteristics
-110℃ low temperature unsealing, high temperature fast curing;
-Good compatibility with various types of resins to improve water resistance, flexibility, chemical resistance and adhesion of paint film;
-High storage stability at room temperature.
Product specification
Properties
Numerical value
Non-volatile component (%)
70±1
Appearance
Clear transparent liquid
Viscosity (25℃, mPa.s)
1000-1500
NCO content (%)
10.0±1
Solvent
PM
Specific gravity
1.0-1.1
Storage
It should be stored at 5°C to 30°C in a dry indoor place away from direct sunlight. Under the specified storage conditions, the expected shelf life of this product is 360 days.
Material Safety
Material Safety Data Sheets for this product are available upon request.
HF-4416 Low Temperature Unsealing Single Component HDI Isocyanate Curing Agent
Model HF-4416
Type Low-temperature unsealable one-component HDI isocyanate curing agent.
Applications One-component baked film coatings of various polyurethane types, primers for various substrates, highly durable industrial paints.
Main Characteristics
Low temperature unblocking at 110°C, fast curing at high temperature, can be used in the field of pre-coating film.
-Good compatibility with various types of resins, light resistance, chemical resistance, improve the physical strength of the film, high weather resistance, resistance to yellowing, water washing resistance, excellent adhesion.
-High storage stability at room temperature.
Product specification
Properties
Numerical value
Non-volatile components (%)
40±1
Color (Garden)
≦ 1
Viscosity (25℃, mPa.s)
200
NCO content (%)
4.4
Ion type
Anion
Density 25℃
1.0-1.1
PH value
7-8
Storage
It should be stored at 5℃-30℃, in a dry place indoors, avoiding direct sunlight. Under the specified storage conditions, the expected shelf life of this product is 360 days.
Recommendations for use
It is recommended to add 0.5% catalyst, it can be dried completely in 30 minutes at 115-120 degrees Celsius, but adding 0.5% catalyst will reduce the storage stability of the finished product, the experimental data show that after adding 0.5% tin catalyst, the viscosity of the product will change a lot after being placed at 40 degrees Celsius for 5 consecutive days (40 degrees Celsius for one day is about 25 degrees Celsius for 3 days), and the viscosity will change slightly after being placed at 40 degrees Celsius for 60 days without the catalyst, the viscosity will change slightly. In the case of no catalyst added, the viscosity changes slightly at 40 degrees Celsius for 60 days. Therefore, it is recommended that if the goods need to be placed for a long period of time, the catalyst should be added before use to ensure the storage stability of the product.
HF-4416 Low temperature unblocking one-component HDI isocyanate curing agent
model HF-4416
Type Low temperature deblocking one-component HDI isocyanate curing agent
apply One-component baking film coatings of various polyurethane types, primers for various substrates, high-durability industrial paints.
Main features
-110℃ low temperature unsealing, high temperature fast curing, can be used as pre-coating film field
– Good compatibility with various types of resins, light resistance, chemical resistance, improve the physical strength of the coating film, high weather resistance, yellowing resistance, washing resistance, excellent adhesion.
-high storage stability at room temperature .
Product Specifications
Physical properties |
Value |
Non-volatile components (% ) |
40±1 |
Color (Garden) |
≦ 1 |
Viscosity (25℃, mPa .s) |
200 |
NCO content (%) |
4.4 |
ion type |
Anions |
density 25℃ |
1.0-1.1 |
PH value |
7-8 |