Biomaterials

Since 1995, Nordmann's subsidiary company Melrob has been sourcing and supplying raw materials for the production of contact lenses, intraocular lenses, dental and medical devices.
We work with a range of chemical manufacturers to offer a comprehensive portfolio of high-purity raw materials. In 2013, we invested in a research, development and manufacturing facility in Singapore.
This facility operates with a range of glass reactors, blending vessels and short-path distillation units, and is supported by a comprehensively equipped analytical and R&D laboratory. With ISO 9001 accreditation, our team of research and process chemists can offer bespoke services in addition to a standard product portfolio:

 

  • Custom synthesis
  • Toll manufacturing
  • Blending of monomers
  • Re-packing

Hydrogel lenses

A complete line of monomers, crosslinkers, UV blockers and tints. Monomers can be supplied with specific purity levels to meet customer requirements. All materials are supplied with consistent batch-to-batch quality.
Product
Abbreviation
CAS Number
VISIOMER© High Purity Hydroxy Ethyl Methacrylate UHP HEMA 868-77-9
Hydroxy Ethyl Acrylate HEA 818-61-1
Ethyl Methacrylate EMA 97-63-2
Methacrylic Acid GMAA 79-41-4
Cyclohexyl Methacrylate CHMA 101-43-9
Ethylene Glycol Dimethacrylate EGDMA 97-90-5
Tetra Ethylene Glycol Dimethacrylate TEGDMA 109-17-1
Glycerol Mono Methacrylate GMMA 5919-74-4
N-Vinyl–2 Pyrrolidone NVP 88-12-0
Iso Butyl Methacrylate IBMA 97-86-9
Allyl Methacrylate AMA 96-05-9
2–Methacroyloyloxyethyl Phosphorylcholine MPC 67881-98-5
2(4-Benzoyl-3-Hydroxy Phenoxy) Ethyl Acrylate UV-416 16432-81-8
4-Methacryloxy-2-Hyroxybenzophenone 4-MHBP 2035-72-5
2-(2’-Hydroxy-5’-Methacryloxyethylphenyl)-2H-Benzotriazole RUVA-93 96478-09-0
1,4-Bis[4-(2-Methacryloxyethyl)phenylamino]-9,10-Anthraquinone RB-246 121888-69-5
1,4-Bis[(2-Methacryloxyethyl)amino]-9,10-Anthraquinone RB-247 109561-07-1

 

Intraocular lenses (IOL)

A complete line of hydrophilic and hydrophobic monomers. Monomers can be supplied to custom purity levels upon request. Low or custom inhibitor levels available upon request.
Product
Abbreviation
CAS Number
VISIOMER© High Purity Hydroxy Ethyl Methacrylate UHP HEMA 868-77-9
Methacrylic Acid GMAA 79-41-4
Methyl Methacrylate MMA 80-62-6
2-Phenyl Ethyl Acrylate PEA 3530-36-7
2-Phenyl Ethyl Methacrylate PEMA 3638-12-3
Ethoxy Ethyl Methacrylate EMMA 2370-63-0
2-Phenoxy Ethyl Acrylate POEA 48145-04-6
2(4-Benzoyl-3-Hydroxy Phenoxy) Ethyl Acrylate UV-416 16432-81-8
4-[(E)-Phenyldiazenyl]phenyl-2-Methacrylate BLB1 128818-49-5

 

Rigid gas permeable (RGP) lenses

A complete line of low- and high-DK monomers and silicone Triss monomers. High-purity monomers are supplied with consistent batch-to-batch quality.
Product
Abbreviation
CAS Number
Methyl Methacrylate MMA 80-62-6
Methacrylic Acid GMAA 79-41-4
3-Methacryloyloxypropyltris(trimethylsilyloxy)Silane TRISS Zero, 6 and 20% Dimer 17096-07-0 
N-Vinyl–2 Pyrrolidone NVP 88-12-0
2,2,2-Tri Fluoro Ethyl Methacrylate TFEMA 352-87-4
2,2,3,3-Tetrafluoropropyl Methacrylate TFPMA 45102-52-1
1,1,1,3,3,3-Hexafluoroisopropyl Methacrylate HFPMA 3063-94-3
2-(2’-Hydroxy-5’-Methacryloxyethylphenyl)-2H-Benzotriazole RUVA-93 96478-09-0

 

Silicone hydrogel lenses

A complete line of hydrophilic monomers, crosslinkers, UV blockers, silicone monomers and silicone macromeres. Monomers can be supplied with specific purity levels to meet customer requirements, and customized inhibitor levels are available on a number of grades. Bespoke silicone monomers and macromeres available on request.
All materials are supplied to a uniform quality.
Product
Abbreviation
CAS Number
VISIOMER© High Purity Hydroxy Ethyl Methacrylate UHP HEMA 868-77-9
Hydroxy Ethyl Acrylate HEA 818-61-1
Ethyl Methacrylate EMA 97-63-2
Methacrylic Acid MAA 79-41-4
Cyclohexyl Methacrylate CHMA 101-43-9
Ethylene Glycol Dimethacrylate EGDMA 97-90-5
Tetra Ethylene Glycol Dimethacrylate TEGDMA 109-17-1
Glycerol Mono Methacrylate GMMA 5919-74-4
N-Vinyl–2 Pyrrolidone NVP 88-12-0
Iso Butyl Methacrylate IBMA 97-86-9
Allyl Methacrylate AMA 96-05-9
2–Methacroyloyloxyethyl Phosphorylcholine MPC 67881-98-5
3-Methacryloyloxypropyltris(trimethylsilyloxy)Silane TRISS Zero, 6 and 20% Dimer 17096-07-0 
N,N, Dimethyl Acrylamide NNDMA 2680-03-7
N-Methyl-N-vinylacetamide VMA 3195-78-6
Methyl-Di(trimethylsiloxy)-Silyl Propyl Glycerol Methacrylate SIGMA 69861-02-5
2(4-Benzoyl-3-Hydroxy Phenoxy) Ethyl Acrylate UV-416 16432-81-8
4-Methacryloxy-2-Hyroxybenzophenone 4MHBP 2035-72-5
2-(2’-Hydroxy-5’-Methacryloxyethylphenyl)-2H-Benzotriazole RUVA-93 96478-09-0
1,4-Bis[4-(2-Methacryloxyethyl)phenylamino]-9,10-Anthraquinone RB-246 121888-69-5
1,4-Bis[(2-Methacryloxyethyl)amino]-9,10-Anthraquinone RB-247 109561-07-1

 

Our suppliers

Find your contact worldwide

United Kingdom / Großbritannien

United Kingdom
Phone:
+44 1293 880 800
E-mail:
Location:
Melrob Ltd., Crawley, United Kingdom