OPTICAL FIBER COATING COMPOSITION

WIPO Patent Application WO2001049792

A8

The present invention relates to radiation-curable compositions that after cure release fully from a matrix material while maintaining other desirable qualities of radiation-cured compositions, in particular, the composition: if colored provide for better through cure. These radiation-curable compositions include at least one radiation-curable oligomer and at least one oligomeric photoinitiator, or improved pigment mixtures. These compositions can be formulated, for example, to serve as protective coatings for substrates manufactured from a wide variety of including glass, plastic, ceramic, metal and wood. The compositions of the present invention are preferably designed for use as an optical fiber coating (including inner primary and, colored or uncolored, secondary coatings as well as other coatings which include inks, matrix materials and the like) or related optical fiber protective materials.

NORLIN TYSON DEAN (US)
SCHOUTEN JAMES JOHN (US)
SOUTHWELL JOHN EDMOND (US)
TOUSSAINT ANTHONY FITZROY (US)
ABEL ADRIANUS GIJSBERTUS MARIA (NL)

PCT/NL2000/000960

November 29, 2001

December 27, 2000

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DSM NV (NL)
NORLIN TYSON DEAN (US)
SCHOUTEN JAMES JOHN (US)
SOUTHWELL JOHN EDMOND (US)
TOUSSAINT ANTHONY FITZROY (US)
ABEL ADRIANUS GIJSBERTUS MARIA (NL)

C03C25/10; C03C25/24; C08F2/46; C08F2/50; G02B6/44; C09D4/00; C09D4/06; C09D5/00; C09D5/20; C09D201/00; C08F220/32; C08F220/34; (IPC1-7): C09D4/06; C08F290/06; C08F290/14; C08F2/50; C03C25/10

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