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

• 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