| 摘要 |
A new radiation curable Secondary Coating for optical fibers is described and claimed wherein said composition comprises a Secondary Coating Oligomer Blend, which is mixed with a first diluent monomer; a second diluent monomer; optionally, a third diluent monomer; an antioxidant; a first photoinitiator; a second photoinitiator; and optionally a slip additive or a blend of slip additives; wherein said Secondary Coating Oligomer Blend comprises:
α) an Omega Oligomer; andβ) an Upsilon Oligomer;wherein said Omega Oligomer is synthesized by the reaction ofα1) a hydroxyl-containing (meth)acrylate;α2) an isocyanate;α3) a polyether polyol; andα4) tripropylene glycol; in the presence ofα5) a polymerization inhibitor; andα6) a catalyst;to yield the Omega Oligomer;wherein said catalyst is selected from the group consisting of dibutyl tin dilaurate; metal carboxylates, including, but not limited to: organobismuth catalysts such as bismuth neodecanoate; zinc neodecanoate; zirconium neodecanoate; zinc 2-ethylhexanoate; sulfonic acids, including but not limited to dodecylbenzene sulfonic acid, methane sulfonic acid; amino or organo-base catalysts, including, but not limited to: 1,2-dimethylimidazole and diazabicyclooctane; triphenyl phosphine; alkoxides of zirconium and titanium, including, but not limited to Zirconium butoxide and Titanium butoxide; and Ionic liquid phosphonium salts; and tetradecyl(trihexyl) phosphonium chloride; andwherein said Upsilon Oligomer is an epoxy diacrylate. |
| 主权项 |
1. A Radiation Curable Secondary Coating Composition, wherein said composition comprises
A) a Secondary Coating Oligomer Blend, which is mixed with B) a first diluent monomer; C) a second diluent monomer; D) optionally, a third diluent monomer; E) an antioxidant; F) a first photoinitiator; G) a second photoinitiator; and H) optionally a slip additive or a blend of slip additives; wherein said Secondary Coating Oligomer Blend comprises: α) an Omega Oligomer; and β) an Upsilon Oligomer; wherein said Omega Oligomer is synthesized by the reaction of α1) a hydroxyl-containing (meth)acrylate; α2) an isocyanate; α3) a polyether polyol; and α4) tripropylene glycol; in the presence of α5) a polymerization inhibitor; and α6) a catalyst; to yield the Omega Oligomer; wherein said catalyst is selected from the group consisting of copper naphthenate, cobalt naphthenate, zinc naphthenate, triethylamine, triethylenediamine, 2-methyltriethyleneamine, dibutyl tin dilaurate; metal carboxylates, including, but not limited to: organobismuth catalysts such as bismuth neodecanoate; zinc neodecanoate; zirconium neodecanoate; zinc 2-ethylhexanoate; sulfonic acids, including but not limited to dodecylbenzene sulfonic acid, methane sulfonic acid; amino or organo-base catalysts, including, but not limited to: 1,2-dimethylimidazole and diazabicyclooctane; triphenyl phosphine; alkoxides of zirconium and titanium, including, but not limited to Zirconium butoxide and Titanium butoxide; and Ionic liquid phosphonium salts; and tetradecyl(trihexyl) phosphonium chloride; wherein said Upsilon Oligomer is an epoxy diacrylate. |
