D1365 BJ RADIATION CURABLE PRIMARY COATING FOR OPTICAL FIBER
First Claim
1. In one aspect, the present invention provides a radiation curable Primary Coating composition comprising:
- A) an oligomer;
B) first diluent monomer;
C) a second diluent monomer;
D) a third diluent monomer;
E) a first light stabilizer;
F) a first photoinitiator;
G) a second photoinitiator;
H) an antioxidant;
I) a second light stabilizer; and
J) an adhesion promoter;
wherein said oligomer is the reaction product of,i) hydroxyl-containing acrylate;
ii) an isocyanate;
iii) a polyether polyol;
iv) a polymerization inhibitor;
v) a catalyst; and
avi) diluent;
wherein said oligomer has a number average molecular weight of from at least about 4000 g/mol to less than or equal to about 15,000 g/mol; and
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, CAS 34364-26-6;
zinc neodecalnoate, CAS 27253-29-8;
zirconium neodecanoate, CAS 39049-04-2; and
zinc 2-ethylhexanoate, CAS 136-53-8;
sulfonic acids, including but not limited to dodecylbenzene sulfonic acid, CAS 27176-87-0; and
methane sulfonic acid, CAS 75-75-2;
amino or organo-base catalysts, including, but not limited to;
1,2-dimethylimidazole, CAS 1739-84-0; and
diazabicyclo[2.2.2]octane, CAS 280-57-9; and
triphenyl phosphine;
alkoxides of zirconium and titanium, including, but not limited to zirconium butoxide, (tetrabutyl zirconate) CAS 1071-76-7; and
titanium butoxide, (tetrabutyl titanate) CAS 5593-70-4; and
ionic liquid phosphonium, imidazolium, and pyridinium salts, such as, but not limited to, trihexyl(tetradecyl)phosphonium hexafluorophosphate, CAS No. 374683-44-0;
1-butyl-3-methylimidazolium acetate, CAS No. 284049-75-8; and
N-butyl-4-methylpyridinium chloride, CAS No. 125652-55-3; and
tetradecyl(trihexyl)phosphonium chloride;
andwherein a cured film of said radiation curable Primary Coating composition has a peak tan δ
Tg of from about −
25°
C. to about −
55°
C.; and
a modulus of from about 0.85 MPa to about 1.10 MPa.
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Accused Products
Abstract
Radiation curable coatings for use as a Primary Coating for optical fibers, optical fibers coated with said coatings and methods for the preparation of coated optical fibers. The present invention provides a radiation curable Primary Coating composition comprising: an oligomer; first diluent monomer; a second diluent monomer; a third diluent monomer; a first light stabilizer; a first photoinitiator; a second photoinitiator; an antioxidant; a second light stabilizer; and an adhesion promoter; wherein said oligomer is the reaction product of hydroxyl-containing acrylate; an isocyanate; a polyether polyol; a polymerization inhibitor; a catalyst; and a diluent; wherein said oligomer has a number average molecular weight of from at least about 4000 g/mol to less than or equal to about 15,000 g/mol; and 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; and wherein a cured film of said radiation curable Primary Coating composition has a peak tan □ Tg of from about −25° C. to about −55° C.; and a modulus of from about 0.85 MPa to about 1.10 MPa.
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Citations
5 Claims
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1. In one aspect, the present invention provides a radiation curable Primary Coating composition comprising:
-
A) an oligomer; B) first diluent monomer; C) a second diluent monomer; D) a third diluent monomer; E) a first light stabilizer; F) a first photoinitiator; G) a second photoinitiator; H) an antioxidant; I) a second light stabilizer; and J) an adhesion promoter; wherein said oligomer is the reaction product of, i) hydroxyl-containing acrylate; ii) an isocyanate; iii) a polyether polyol; iv) a polymerization inhibitor; v) a catalyst; and
avi) diluent; wherein said oligomer has a number average molecular weight of from at least about 4000 g/mol to less than or equal to about 15,000 g/mol; and 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, CAS 34364-26-6;
zinc neodecalnoate, CAS 27253-29-8;
zirconium neodecanoate, CAS 39049-04-2; and
zinc 2-ethylhexanoate, CAS 136-53-8;
sulfonic acids, including but not limited to dodecylbenzene sulfonic acid, CAS 27176-87-0; and
methane sulfonic acid, CAS 75-75-2;
amino or organo-base catalysts, including, but not limited to;
1,2-dimethylimidazole, CAS 1739-84-0; and
diazabicyclo[2.2.2]octane, CAS 280-57-9; and
triphenyl phosphine;
alkoxides of zirconium and titanium, including, but not limited to zirconium butoxide, (tetrabutyl zirconate) CAS 1071-76-7; and
titanium butoxide, (tetrabutyl titanate) CAS 5593-70-4; and
ionic liquid phosphonium, imidazolium, and pyridinium salts, such as, but not limited to, trihexyl(tetradecyl)phosphonium hexafluorophosphate, CAS No. 374683-44-0;
1-butyl-3-methylimidazolium acetate, CAS No. 284049-75-8; and
N-butyl-4-methylpyridinium chloride, CAS No. 125652-55-3; and
tetradecyl(trihexyl)phosphonium chloride;and wherein a cured film of said radiation curable Primary Coating composition has a peak tan δ
Tg of from about −
25°
C. to about −
55°
C.; and
a modulus of from about 0.85 MPa to about 1.10 MPa. - View Dependent Claims (2, 3, 4, 5)
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Specification