Yussuf E AliStone Mountain, GA

5473720, Dec 5, 1995

Mar 7, 1994

8/207528

Yussuf S. Ali - Fanwood NJ
Darryl L. Brownlow - Bridgewater NJ
Howard E. Katz - Summit NJ
Valerie J. Kuck - Upper Montclair NJ
Marcia L. Schilling - Basking Ridge NJ
Lloyd Shepherd - Madison NJ

AT&T Corp. - Murray Hill NJ

G02B 610
B05D 500

385128

Applicants have discovered that low pullout strength of optical fiber is attributable to volatile, unreacted monomers and impurities which result from the incomplete polymerization of liquid coating materials. They have further discovered that removing these unreacted liquids as by heating in air, heating in vacuum or by application of a solvent mixture improves fiber coating adhesion. By heating cured polymer-coated fiber in air at temperatures of 100. degree. C. or more, the fiber pullout strength is enhanced by 25% or more. This postcure heating can advantageously be clone off-line by placing loosely wound fiber in a heated oven. Alternatively, the postcure heating can be done on-line by reel-to-reel passage of the fiber through a heated furnace. Preferred temperatures are in the range 100. degree. C. -300. degree. C. Even greater enhancement of pullout strength can be effected by heating in vacuum or by solvent extraction.

5756165, May 26, 1998

Sep 16, 1996

8/716802

Yussuf Sultan Ali - Fanwood NJ
Darryl Leneir Brownlow - Bridgewater NJ
Alex Harris - Maplewood NJ
Nicholas James Levinos - Hampton NJ
Robert Clark Moore - Roswell GA
Lloyd Shepherd - Madison NJ

Lucent Technologies Inc. - Murray Hill NJ

B05D 506
C08J 704

427513

Applicants have discovered that the speed of fiber manufacture can be substantially increased by employing a two-step curing process in which the fiber is drawn, coated and exposed to ultraviolet light on-line at high line speeds to effect a partial cure of the coating. After further cooling, the partially cured coating is fully cured by an on-reel exposure to ultraviolet light. The on-reel exposure can take place on the draw tower take-up reel as it is filing with fiber or it can take place off-line after the take-up reel has been filled and removed from the line. The on-reel exposure advantageously takes place either during filling the take-up reel, or during emptying the reel, so that each layer of fiber on the reel is exposed equally to the ultraviolet light. This method of UV illumination improves the energy efficiency in the second exposure by at least a factor of 10 to as much as a factor of 1000. The fiber primary coating pullout strength and mechanical modulus are enhanced.

2021010, Apr 15, 2021

Oct 9, 2020

17/067149

- Piscataway NJ, US
Jitendra Arunchandra Jain - Edison NJ, US
Yussuf Sultan Ali - Fanwood NJ, US
Matthew David Sulik - Township of Warren NJ, US
Dishen Patel - Edison NJ, US
Makar Makram Ibrahim - Piscataway NJ, US

C04B 28/08
C04B 14/06
C04B 14/26
C04B 40/02
C04B 38/10
B28B 17/02

A method of producing a carbonated composite material is described that includes: providing a carbonatable cementitious material in particulate form; mixing the carbonatable cementitious material with water to produce a mix; forming a predetermined shape with the mix, wherein the predetermined shape has an initial pore structure containing an initial pore solution having a first pH; pre-conditioning the predetermined shape to remove a predetermined amount of the water from the predetermined shape to produce a pre-conditioned shape; carbonating the pre-conditioned shape in an environment comprising carbon dioxide to produce a modified pore structure containing a modified pore solution having and a second pH, wherein the difference between the first pH and the second pH is represented by a ΔpH, and the ΔpH is 1.0 or less, 0.75 or less, 0.5 or less, 0.25 or less, or about 0.0. A calcium silicate composition including solid components and liquid components having improved pore solution pH stability is also disclosed.