LAROMER PR 9000

Laromer PR 9000 can be used both as a binder for coatings and as an adhesion promoter in adhesives.
Laromer PR 9000 can be used as a sole binder.
Laromer PR 9000 offers excellent weather & scratch resistance, radiation curing properties and improves adhesion.

CAS Number: 264888-31-5
EC Number: 677-640-8 
Main ingredient: Hexane, 1,6-diisocyanato-, homopolymer, 2-hydroxyethyl acrylate-blocked.
Molecular Formula and Weight (Representative / Average): 
While no unique molecular formula exists, an average repeating structure can be represented approximately as:
(C₅₇H₉₄N₂O₁₄)ₙ, where n ≈ 1–3
Molecular weight of about 1,000 g/mol.

SYNONYMS:
Hexane, 1,6-diisocyanato-, homopolymer, 2-hydroxyethyl acrylate-blocked, 1,6-Diisocyanatohexane homopolymer 2-hydroxyethyl acrylate blocked, Acrylated urethane resin based on HDI, Laromer PR 9000, Laromer® PR 9000

Laromer PR 9000 is a low-viscous, isocyanate-functional, unsaturated acrylic ester resin, based on allophanated hexamethylene diisocyanate, for dual-cure coatings resistance to light and weathering.
Laromer PR 9000 is an isocyanate-functional, aliphatic acrylic ester and its reactivity recommends it as both an isocyanate and an acrylic ester component for dual-cure applications.

A low-viscous resin, Laromer PR 9000 may also be used as a sole binder.
After exposure to UV energy, the isocyanate groups react with both ambient and the substrate’s inherent moistures to form
a blister-free coating.

Most notably, this one-pack application of Laromer PR 9000 is suitable for both porous substrates and those with poor adhesion properties.
Laromer PR 9000 is an isocyanate-functional, aliphatic acrylic ester and its reactivity recommends it as both an isocyanate and an acrylic ester component for dual-cure applications.

Laromer PR 9000 is an isocyanate-functional, aliphatic acrylic ester.
Its reactivity recommends Laromer PR 9000 both as isocyanate and acrylic ester component for dual-cure applications.
Laromer PR 9000 is an isocyanate-functional, aliphatic acrylic ester and its reactivity recommends it as both an isocyanate and an acrylic ester component for dual-cure applications.

Laromer PR 9000 is a low-viscous, isocyanate-functional, aliphatic urethane/acrylic (acrylate) oligomer (an acrylated polyisocyanate) designed for dual-cure coatings (thermal + UV or UV/EB).
Laromer PR 9000’s supplied as a 100% solids (solvent-free) reactive oligomer used as binder/adhesion promoter in UV/EB or dual-cure formulations to give weathering and scratch resistance, improved adhesion and the option to be used as a sole binder or in two-pack formulations.

Laromer PR 9000 is low-viscous isocyanate-functional unsaturated acrylic ester resin, based on allophanated hexamethylene diisocyanate, for dual-cure coatings resistant to light and weathering.
Laromer PR 9000 is a chemical raw material that can be used in various applications.

Laromer PR 9000 is a liquid resin that can be used for the production of coatings, adhesives, and printing inks.
Laromer PR 9000 is a low-viscous isocyanate-functional unsaturated acrylic ester resin, based on allophanated hexamethylene diisocyanate, for dual-cure coatings resistant to light and weathering.

USES and APPLICATIONS of LAROMER PR 9000:
Laromer PR 9000 offers good adhesion to various substrates such as metal, glass, plastic, and wood.
Laromer PR 9000 can be used both as a binder for coatings and as an adhesion promoter in adhesives.
Laromer PR 9000 can be used as a sole binder.

Laromer PR 9000 offers excellent weather & scratch resistance, radiation curing properties and improves adhesion.
Laromer PR 9000 is used to formulate EB or UV curable coatings.
Laromer PR 9000 is recommended for automotive OEM & refinish, furniture flooring, floorcare, general metal and industrial coatings.

Laromer PR 9000 is listed with EINECS, TSCA, DSL, ENCS and IECSC.
Dual-cure applications formulated with Laromer PR 9000 produce weatherable- and scratch-resistant
coatings.

Laromer PR 9000 is used for pigmented coatings that cannot be cured by UV, thermal pre-curing is required.
The subsequent UV curing produces a coating with excellent resistance to weathering and scratching.
Laromer PR 9000 is commonly used in combination with resins containing hydroxylic groups or with other energy curable resins, mostly in two-pack formulations.

Suggested applications of Laromer PR 9000: Automotive OEM, Automotive refinish, Furniture flooring and floorcare, General metal,
Industrial coatings, Printing packaging and adhesives.
Laromer PR 9000 can also be used in printing ink and OPV applications.

Laromer PR 9000 is commonly used in combination with resins containing hydroxyl groups or with other energy curable resins, mostly in two-pack formulations.
Inert solvents can be used if an adequate flash-off zone is available.

However, these solvents have to be removed completely from the film prior to exposure to UV energy.
A suitable photoinitiator must be used to photocure Laromer PR 9000.
The photoinitiator types include, for example, α-hydroxy ketone, benzophenone, acyl phosphine oxide, and blends thereof, for typical
coating applications.

Laromer PR 9000 is commonly used in combination with resins containing hydroxylic groups or with other energy curable resins, mostly in two-pack formulations.
Dual-cure applications formulated with Laromer PR 9000 produce weather- and scratch-resistant coatings.

For pigmented coatings that cannot be cured by UV, thermal pre-curing is required.
The subsequent UV curing produces a coating with excellent resistance to weathering and scratching.
Laromer PR 9000 is used UV/EB or dual-cure coatings (clearcoats, overprint varnishes).

Laromer PR 9000 is used Automotive OEM and refinish clear coats.
Laromer PR 9000 is used Industrial metal coatings (interior/exterior).
Laromer PR 9000 is used Plastic component coatings (interior/exterior).

Laromer PR 9000 is used Wood coatings (floor, furniture, millwork).
Laromer PR 9000 is used Printing inks (flexo, gravure, digital, silk-screen).
Laromer PR 9000 is used Overprint varnishes for commercial and packaging applications.

Laromer PR 9000 can be used as sole binder in some formulations or as polyisocyanate crosslinker vs. polyols/hydroxy resins in two-pack systems.
Laromer PR 9000 is commonly used in combination with resins containing hydroxyl groups or with other energy curable resins, mostly in two-pack formulations.

Dual-cure applications formulated with LAROMER PR 9000 produce weatherable- and scratch-resistant coatings.
Laromer PR 9000 is used for pigmented coatings that cannot be cured by UV, thermal pre-curing is required.
Laromer PR 9000 is used the subsequent UV curing produces a coating with excellent resistance to weathering and scratching.

As a low-viscous resin, Laromer PR 9000 may also be used as a sole binder.
After exposure to UV energy, the isocyanate groups react with both ambient and the substrate’s inherent moistures to form a blister-free coating.

Most notably, this one-pack application is suitable for both porous substrates and those with poor adhesion properties.
Laromer PR 9000 is recommended for applications such as: Automotive OEM or refinish applications: Interior/exterior general industrial metal coating applications, Interior/exterior plastic components coating applications, Interior/exterior wood coatings for floor, furniture, or millwork applications.

Laromer PR 9000 is used printing inks for flexographic, gravure, digital, or silk-screen applications
Laromer PR 9000 is used overprint varnishes for commercial, publication, or packaging applications
Laromer PR 9000 is used in combination with resins containing hydroxylic groups or with other radiation-curable resins, mostly in two-pack formulations.

Dual-cure applications of Laromer PR 9000 can be weather- and scratch-resistant coatings.
Laromer PR 9000 is used for pigmented coatings that cannot be cured by UV, thermal pre-curing is required.
The subsequent UV curing produces a coating with excellent resistance to weathering and scratching.

Laromer PR 9000, a low-viscous resin, may also be used as a sole binder.
After exposure to UV radiation, the isocyanate groups react with both ambient and the substrate’s inherent moistures to a blister-free coat.
Most notably, this one-pack application of Laromer PR 9000 is suitable for both porous substrates and those with poor adhesion properties.

Laromer PR 9000 is an isocyanate-functional, aliphatic acrylic ester and its reactivity recommends it as both an isocyanate and an acrylic ester component for dual-cure applications.
Laromer PR 9000 is commonly used in combination with resins containing hydroxylic groups or with other energy curable resins, mostly in two-pack formulations.

-Laromer PR 9000 is recommended for applications such as:
Automotive OEM or refinish applications
*Interior/exterior general industrial metal coating applications
*Interior/exterior plastic components coating applications
*Interior/exterior wood coatings for floor, furniture, or millwork applications
*Printing inks for flexographic, gravure, digital, or silk-screen applications
*Overprint varnishes for commercial, publication, or packaging applications

BENEFITS of LAROMER PR 9000:
Dual cure mechanism (UV-reactive plus isocyanate functionality) 
Solvent free, 100% solids system | Excellent adhesion even on oily surfaces (tropical wood) | Improved through cure via reaction of NCO with OH

HIGHLIGHTS of LAROMER PR 9000:
*Dual-cure applications
*Pigment coating
*Excellent weather and scratch resistance
*Can be used as a sole binder
*Improves adhesion

PROCESSING of LAROMER PR 9000:
Laromer PR 9000 can be diluted further for processing with suitable low-volatile monomers such as mono-functional, di-functional, or tri-functional acrylic esters.
The monomers are incorporated into the film and thus influence its properties.

Mono-functional monomers increase the flexibility; 
di-functional monomers have little effect on hardness and flexibility;
tri-functional monomers increase hardness of the cured film.

COMPOSITION of LAROMER PR 9000:
Laromer PR 9000 is synthesized from:
Hexamethylene diisocyanate (HDI) — C₈H₁₂N₂O₂
Hydroxy-functional acrylates (such as hydroxyethyl acrylate, C₅H₈O₃)

Allophanate linkages (resulting from further reaction between urethane groups and isocyanates)
The resulting material is an oligomer, meaning it contains a mixture of molecules with similar but not identical structures. Therefore, its formula and molecular weight are average values rather than exact numbers.

FORMULATION/PROCESSING NOTES of LAROMER PR 9000:
Laromer PR 9000 is used a suitable photoinitiator (α-hydroxy ketone, benzophenone, acyl phosphine oxide, or blends) for UV cure.
Laromer PR 9000 is used for pigmented coatings that cannot be UV-cured fully, a thermal pre-cure may be required prior to UV to produce weather- and scratch-resistant films.

Reactive diluents (mono/di/tri-functional acrylates) can be used to adjust flexibility/hardness; mono-functional increases flexibility, tri-functional increases hardness.

When using inert solvents, ensure proper flash-off before UV exposure (solvents must be removed before cure).
Low-viscous isocyanate-functional unsaturated acrylic ester resin, based on allophanated hexamethylene diisocyanate, for dual-cure coatings resistant to light and weathering

BENEFITS of LAROMER PR 9000:
*Good adhesion
*Laromer PR 9000 contains 14-15 wt% NCO- and UV-reactive groups within one molecule
*Solvent free, 100% solids system
*Laromer PR 9000 is improved through cure via reaction of NCO with OH
*Excellent adhesion even on oily surfaces (tropical wood)
*Dual cure mechanism (UV-reactive plus isocyanate functionality)
*Laromer PR 9000 can be used as a sole binder
*Excellent weather and scratch resistance
*Pigment coating
*Dual-cure applications
*Laromer PR 9000 improves adhesion

 
KEY PROPERTIES / BENEFITS (FORMULATION PERSPECTIVE) of LAROMER PR 9000:
Dual-cure capability — improved cure and film properties by combination of UV (acrylate) cure and isocyanate crosslinking (moisture/thermal).
Excellent weather resistance and scratch resistance (aliphatic urethane-acrylate backbone).
Good adhesion to many substrates (metal, plastics, wood) and can act as adhesion promoter.

Solvent-free 100% solids system (reduces VOCs vs solventborne coatings).
Laromer PR 9000 can be thinned with reactive diluents to tailor flexibility / hardness.

PHYSICAL and CHEMICAL PROPERTIES of LAROMER PR 9000:
Appearance: low viscous liquid
Viscosity at 23°C (DIN EN ISO 3219): ~ 1,400 cps
Sheer rate D: 6,700 s-1
Color value, platinum cobalt (Hazen, ISO 6271): ≤ 150
NCO content (DIN EN ISO 11909): ~ 15.5%
NCO equivalent weight (quantity of Laromer LR 9000 as supplied containing 1 mol of active NCO): 289.7 – 271.0
Density at 50°C (DIN 51757, method 4.3): ~ 1.133 g/cm³
Appearance: Low viscous liquid

Viscosity at 23°C (DIN EN ISO 3219): ~ 1400 cps
Shear Rate D: 6700 s-1
Color Value, Platinum Cobalt (Hazen, ISO 6271): ≤ 150
Density at 50°C (DIN 53217, method 4.3): ~ 1.133 g/cm3
NCO Content (DIN EN ISO 11909): ~ 15.5%
NCO Equivalent Weight (quality of LAROMER LR 9000 as supplied containing 1 mol of active NCO): 289.7 – 271.0
Appearance: low-viscous liquid.

CAS Number: 264888-31-5
EC Number: 677-640-8 (listed as an “acrylated urethane resin based on HDI” in ECHA PACT search results)
Main ingredient (as listed in SDS): Hexane, 1,6-diisocyanato-, homopolymer, 2-hydroxyethyl acrylate-blocked.
Viscosity (typical): ~ 1,400 mPa·s (cP) at 23 °C (DIN EN ISO 3219) — quoted in the BASF TDS.
Shear rate reported: D 6,700 s⁻¹ (TDS context).
Color (Hazen / platinum-cobalt, ISO 6271): ≤ 150.
NCO content: ~ 15.5% (NCO = isocyanate groups; TDS measured per DIN EN ISO 11909).
NCO equivalent weight (typical range shown): ~ 289.7 – 271.0 (values in TDS).

Density: ~ 1.133 g/cm³ (measured at 50 °C in TDS).
Solubility / dilution: solvent-free 100% solids; can be thinned with common coatings solvents (esters, ketones, glycol ether acetates, aromatic hydrocarbons) and diluted with low-volatile reactive monomers (acrylates). 
Not soluble in aliphatic hydrocarbons (per TDS). 
Note: components with active hydrogens (water, alcohols) may react with NCO and increase viscosity.
Reactivity/functional groups: contains acrylate (UV-curable) groups and isocyanate (NCO) functionality enabling dual cure (UV + moisture/thermal reaction with OH groups). 
Typical system: 100% solids, reactive oligomer for UV/EB or dual-cure coatings (may require photoinitiator for UV cure).

Chemical type: Isocyanate-functional, aliphatic acrylic ester resin (unsaturated acrylic ester) based on allophanated hexamethylene diisocyanate.
Trade name: Laromer PR 9000 (formerly LR 9000)
Typical functionality: Contains both NCO (isocyanate) groups and acrylate unsaturation (UV/EB curable) in the same molecule.
Appearance: Low-viscous liquid Typical of reactive oligomer resin.
Viscosity (23 °C): ~ 1,400 cps (centipoise) at shear rate D 6,700 s⁻¹
Density (50 °C): ~ 1.133 g/cm³ (DIN 51757)

Color (platinum-cobalt/Hazen): ≤ 150 (ISO 6271)
Solvent / diluent tolerance: Thinnable with common coating solvents (ketones, esters, aromatic hydrocarbons) 
except aliphatic hydrocarbons; care with moisture/reactive diluents (water or alcohols can react with NCO)
Product Name: Laromer PR 9000
Chemical Type: Isocyanate-functional aliphatic urethane acrylate oligomer
Chemical Class: Urethane-acrylate (HDI-based)
CAS / EC: Proprietary mixture (no fixed CAS)

Molecular Formula: Variable, approximately (C₅₇H₉₄N₂O₁₄)ₙ
Average Molecular Weight (Mn): ~900–1,500 g/mol
Functional Group: Isocyanate (–NCO), Acrylate (–CH=CH₂)
NCO Equivalent Weight: 270–290 g/mol
Appearance: Clear to slightly yellow viscous liquid
Solubility: Insoluble in water, miscible with organic solvents

FIRST AID MEASURES of LAROMER PR 9000:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation: 
Fresh air.
*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Call in ophthalmologist. 
Remove contact lenses.
*If swallowed:
After swallowing: 
Immediately make victim drink water (two glasses at most). 
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of LAROMER PR 9000:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills. 
Observe possible material restrictions. 
Take up dry. 
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of LAROMER PR 9000:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of LAROMER PR 9000:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection. 
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A 
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of LAROMER PR 9000:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed. 
Dry.

STABILITY and REACTIVITY of LAROMER PR 9000:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available