Home > Offer to Sell > Catalyst and Auxiliary > Plastic Auxiliary Agent > uv light absorber Properties:YCUV418 ;it is a benzylidene malonate type UV stabilizer which strongly absorb in the high energy part of the UV spectrum
uv light absorber Properties:YCUV418 ;it is a benzylidene malonate type UV stabilizer which strongly absorb in the high energy part of the UV spectrum
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| Post Date: | Feb 23,2017 |
| Expiry Date: | Feb 23,2018 |
| Detailed Description: |
Cas No. :7443-25-6
Chemical Name: Propanedioic acid, [(4-methoxyphenyl)-methylene]-dimethyl ester;
Other name: Dimethyl (p-methoxybenzylidene)malonate; Propanedioic acid, ((4-methoxyphenyl)methylene)-, dimethyl ester; Propanedioic acid, [(4-methoxyphenyl)methylene]-, dimethyl ester; Propanedioic acid, 2-((4-methoxyphenyl)methylene)-, 1,3-dimethyl ester; Propanedioic acid, 2-[(4-methoxyphenyl)methylene]-, 1,3-dimethyl ester; EINECS 231-185-8; Dimethyl 2-(4-Methoxybenzylidene)Malonate; dimethyl 2-[(4-methoxyphenyl)methylidene]propanedioate; Malonic acid, (p-methoxybenzylidene)-, dimethyl ester (8CI); Specification: Properties Specifications: APPEARANCE White to offwhite powder MELTING POINT 55-59℃ SOLUBILITY Soluble in acetone, MC, EA, Toluene, Xylene, Alcohols, insoluble in water. TGA(10% mass loss, N2, 5℃/min) 208 ℃ Properties:UV absorbance / UV absorber PR-25 / Clariant Hostavin PR 25 / Sanduvor PR 25 equivalent;it can strognly abosorb UV-B (Low wavelength part of the ultraviolet spectruman;maximum wavelength up to 308nm ).it has higher absorb ratio compared with traditional Hydroxy-substituted benzotriazole and benzophenone type UV absorbers; doesn’t cause coloration of polymers which is impossible by traditionla UV absorbers;UV absorber PR 25 has great synergism effect with traditional hindered amine light stabilizers. Application: YCUV419 is a novel light stabilizer which is widely used in polymers such as PC,PS,PVC; YCUV419 can be used alone also can be used together with other light stabilizers; YCUV419 can be used direct with resins or be prepared in pre-dispersion granular form;or dissolve it in solvents to paint on the surface of products; In 1.2mm PVC injection sheet,the effect with 0.3% YCUV419 is much better than traditional absorbers Tinuvin 123 and Tinuvin 770 ; In 1mm PC sheet,the effect with 0.3% UV absorber PR-25 is much better than other traditional UV absorbers Tinuvin 900 and Cyasorb 1164; Great synergism effect:When YCUV419 is used together with Tinuvin 123,the effect is much better than using absorber PR-25 or Tinuvin 123 alone Recommended dosage: 0.3% YCUV419 just can be used in industry field Package and Storage: 25kgs/drum or as customer’s request; It is not a dangerous goods according to transportation regulation; |
| CAS Registry Number: | 7443-25-6 |
| Company: | Yongchang Polymer Additives Co ltd [ China ] |
| Contact: | Mickel |
| Tel: | +86-20-61876219 |
| Fax: | |
| Email: | info@chinapolymeradditives.cn |
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