The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2005
Filed:
Apr. 24, 2003
Jan Van Eekelen, Rozenburg, NL;
Sandra Nagelvoort, Vlaardingen, NL;
Duurt Alkema, Den Haag, NL;
Paul Buijsen, Geleen, NL;
Huimin Cao, Addison, IL (US);
Robert W. Johnson, Algonquin, IL (US);
David M. Szum, Elmhurst, IL (US);
Jan van Eekelen, Rozenburg, NL;
Sandra Nagelvoort, Vlaardingen, NL;
Duurt Alkema, Den Haag, NL;
Paul Buijsen, Geleen, NL;
Huimin Cao, Addison, IL (US);
Robert W. Johnson, Algonquin, IL (US);
David M. Szum, Elmhurst, IL (US);
DSM IP Assets B.V., Heerlen, NL;
Abstract
A coated optical fiber can have a primary coating and a secondary coating, where the primary coating can have good microbending resistance and is obtained by curing a composition having a high cure speed. In one example, a coated optical fiber can include as optical fiber, a primary coating and a secondary coating. The optical fiber can have an attenuation increase of less than 0.650 dB/km at 1550 nm, with the primary coating having a modulus retention ratio of at least 0.5, a glass transition temperature of −35° C., and where the primary coating is obtained by curing a primary coating composition having a cure dose to attain 95% of the maximum attainable modulus of less than 0.65 J/cm.