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| Brand Name: | Keyou |
| Model Number: | Chiguard? R-455 |
| MOQ: | 1 set |
| Price: | Negotiation |
| Packaging Details: | Iron bucket |
| Payment Terms: | T/T, PayPal, Western Union |
CAS No 153519-44-9 UV Absorber hydroxyphenyl triazine for high-performance coatings
Description
Aromatic polyurethane (PU) develops yellowing upon exposure to UV light. To mitigate the
yellowing, PU adds benzotriazole UV absorbers (BZT UVA) to block out UV light. Chiguard®
R-455 is a newly introduced BZT UVA, which bring UV protection to next level.
Chiguard® R-455 is a UV absorber from the benzotriazole series, and is the first line of defense against UV rays in coatings and plastics. The molecules of Chigurad® R-455 have a primary diol structure, which makes it capable of a diol chain extender and can undergo chemical cross-linking reactions with substances such as isocyanates, amino resins, and organic siloxanes. The additive UV absorbers used in existing coatings will migrate to the coating surface over time or be easily extracted by solvents, which reduces the long-term weather resistance of the coating. Chigurad® R-455 will undergo chemical cross-linking with the hardener, which can completely solve this problem and achieve the requirements of ultra-long-term weather resistance. In the field of thermoplastic polyurethane elastomers (TPU), Chiguard® R-455 will react with isocyanates to embed it into the polyurethane main chain and permanently become a part of the polyurethane polymer, completely solving the problem of UV absorber blooming that is often observed in TPU, and can greatly improve the long-term light yellowing resistance of TPU. Reactive UV absorber Chiguard® R-455 can be widely used in two-component polyurethane coatings, amino resin paint, special ultra-long-lasting weather-resistant coatings, water-based polyurethane resin synthesis, TPU synthesis, E-TPU, TPU prepolymer and other industrial fields.
Chemical Information
Physical property data
| Appearance | Light yellow powder |
| Melting point | 115 ?C min |
| Purity | 98% min |
| Volatile components | 0.5% max. |
Solubility (grams of solute per 100 ml of solution)
| Methanol | 10 |
| Isopropyl alcohol | 7.5 |
| Xylene | 1.5 |
Note measurement status
| TSCA | Registering |
| EU REACH | Registered |
| TW REACH | Listed |
Product catalogue
| Product Name | CAS No. | Form | Melting point | Application characteristics |
| Ultraviolet absorber 5400WB | 153519-44-9 | Liquid | - | High-end waterborne applications |
| Ultraviolet absorber 5411 | 3147-75-9 | Powder | - | Low volatility, high lipophilicity |
| Ultraviolet absorber 5530 | 104810-48-2 & 104810-47-1 | Liquid | - | Waterborne/refinish paints |
| Ultraviolet absorber R-455 | Confidential | Powder | Minimum 115 degrees Celsius | Aliphatic and aromatic PU systems, TPU and PU coatings |
| Ultraviolet absorber 5400 | 153519-44-9 | Liquid | - | High-performance coatings |
| Ultraviolet absorber 5582 | 127519-17-9&108-65-6 | Liquid | - | Applicable to automotive coatings and industrial coatings |
| Ultraviolet absorber 228 | 106990-43-6 | Powder | - | Thin films/polyolefins/elastomers |
| Ultraviolet absorber 5582WB | 127519-17-9 | Liquid | - | Applicable to architectural coatings, OEM primers, OEM clear coats, refinish paints and industrial coatings. |
| Ultraviolet absorber 3253 | Mixture of UVA&HALS | Liquid | - | Wood coatings, general architectural and industrial coatings |
| Ultraviolet absorber 3053 | Mixture of UVA&HALS | Liquid | - | Acrylic emulsions, general architectural and industrial coatings |
|
|
| Brand Name: | Keyou |
| Model Number: | Chiguard? R-455 |
| MOQ: | 1 set |
| Price: | Negotiation |
| Packaging Details: | Iron bucket |
| Payment Terms: | T/T, PayPal, Western Union |
CAS No 153519-44-9 UV Absorber hydroxyphenyl triazine for high-performance coatings
Description
Aromatic polyurethane (PU) develops yellowing upon exposure to UV light. To mitigate the
yellowing, PU adds benzotriazole UV absorbers (BZT UVA) to block out UV light. Chiguard®
R-455 is a newly introduced BZT UVA, which bring UV protection to next level.
Chiguard® R-455 is a UV absorber from the benzotriazole series, and is the first line of defense against UV rays in coatings and plastics. The molecules of Chigurad® R-455 have a primary diol structure, which makes it capable of a diol chain extender and can undergo chemical cross-linking reactions with substances such as isocyanates, amino resins, and organic siloxanes. The additive UV absorbers used in existing coatings will migrate to the coating surface over time or be easily extracted by solvents, which reduces the long-term weather resistance of the coating. Chigurad® R-455 will undergo chemical cross-linking with the hardener, which can completely solve this problem and achieve the requirements of ultra-long-term weather resistance. In the field of thermoplastic polyurethane elastomers (TPU), Chiguard® R-455 will react with isocyanates to embed it into the polyurethane main chain and permanently become a part of the polyurethane polymer, completely solving the problem of UV absorber blooming that is often observed in TPU, and can greatly improve the long-term light yellowing resistance of TPU. Reactive UV absorber Chiguard® R-455 can be widely used in two-component polyurethane coatings, amino resin paint, special ultra-long-lasting weather-resistant coatings, water-based polyurethane resin synthesis, TPU synthesis, E-TPU, TPU prepolymer and other industrial fields.
Chemical Information
Physical property data
| Appearance | Light yellow powder |
| Melting point | 115 ?C min |
| Purity | 98% min |
| Volatile components | 0.5% max. |
Solubility (grams of solute per 100 ml of solution)
| Methanol | 10 |
| Isopropyl alcohol | 7.5 |
| Xylene | 1.5 |
Note measurement status
| TSCA | Registering |
| EU REACH | Registered |
| TW REACH | Listed |
Product catalogue
| Product Name | CAS No. | Form | Melting point | Application characteristics |
| Ultraviolet absorber 5400WB | 153519-44-9 | Liquid | - | High-end waterborne applications |
| Ultraviolet absorber 5411 | 3147-75-9 | Powder | - | Low volatility, high lipophilicity |
| Ultraviolet absorber 5530 | 104810-48-2 & 104810-47-1 | Liquid | - | Waterborne/refinish paints |
| Ultraviolet absorber R-455 | Confidential | Powder | Minimum 115 degrees Celsius | Aliphatic and aromatic PU systems, TPU and PU coatings |
| Ultraviolet absorber 5400 | 153519-44-9 | Liquid | - | High-performance coatings |
| Ultraviolet absorber 5582 | 127519-17-9&108-65-6 | Liquid | - | Applicable to automotive coatings and industrial coatings |
| Ultraviolet absorber 228 | 106990-43-6 | Powder | - | Thin films/polyolefins/elastomers |
| Ultraviolet absorber 5582WB | 127519-17-9 | Liquid | - | Applicable to architectural coatings, OEM primers, OEM clear coats, refinish paints and industrial coatings. |
| Ultraviolet absorber 3253 | Mixture of UVA&HALS | Liquid | - | Wood coatings, general architectural and industrial coatings |
| Ultraviolet absorber 3053 | Mixture of UVA&HALS | Liquid | - | Acrylic emulsions, general architectural and industrial coatings |
