公开(公告)号：US11181686B2

公开(公告)日：2021-11-23

申请号：US16391776

申请日：2019-04-23

Applicant: Corning Incorporated

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/036 ,  G02B6/02

Abstract: An optical fiber comprising: a core having an outer radius r1; a cladding having an outer radius r4≤31 microns; a primary coating surrounding the cladding having an outer radius r5, a thickness tp>10 microns, in situ modulus EP of 0.5 MPa or less, and a spring constant χP

公开(公告)号：US20200369563A1

公开(公告)日：2020-11-26

申请号：US16872750

申请日：2020-05-12

Applicant: CORNING INCORPORATED

Inventor： Benjamin David Bayless ,  Dana Craig Bookbinder ,  Stephan Lvovich Logunov ,  Darren Andrew Stainer ,  Ruchi Tandon

IPC: C03C25/1065 ,  C03C25/105

Abstract: The systems and methods of forming optical fiber coatings with reduced defects include moving a bare optical fiber through first and second coating sub-systems. The first coating sub-system forms a first coating on the bare optical fiber by depositing a first coating material and then curing the deposited first coating material with actinic light. This process also results in the formation of stray actinic light. The process also includes moving the coated optical fiber through a second coating sub-system to form a second coating on the first coating. A light-blocking device resides between the first and second coating sub-systems to block the stray actinic light. Without the light-blocking device, the stray actinic light can enter the second coating sub-system and reach the second coating material therein and form a gel therefrom, which in turn leads to defects in the coated optical fiber exiting the second coating sub-system.

公开(公告)号：US20200062643A1

公开(公告)日：2020-02-27

申请号：US16538093

申请日：2019-08-12

Applicant: CORNING INCORPORATED

Inventor： Dana Craig Bookbinder ,  Darren Andrew Stainer ,  Pushkar Tandon ,  Ruchi Tandon

IPC: C03C25/106 ,  C03C25/12 ,  C03C25/285

Abstract: An optical fiber curing component includes a tube having a body defining an interior surface and an exterior surface. The tube defines a first aperture and a second aperture on opposite ends of a cavity. The tube defines a central axis extending through the cavity. A plurality of light sources is coupled to the body of the tube and configured to emit light toward the central axis of the tube. Each of the light sources intersect a common plane defined perpendicular to the central axis of the tube. A reflective coating is positioned on the interior surface of the body and configured to reflect the light toward the central axis of the tube.

公开(公告)号：US20190331848A1

公开(公告)日：2019-10-31

申请号：US16391776

申请日：2019-04-23

Applicant: Corning Incorporated

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/036 ,  G02B6/02

Abstract: An optical fiber comprising: a core having an outer radius r1; a cladding having an outer radius r4≤31 microns; a primary coating surrounding the cladding having an outer radius r5, a thickness tp>10 microns, in situ modulus EP of 0.5 MPa or less, and a spring constant χP

公开(公告)号：US12006253B2

公开(公告)日：2024-06-11

申请号：US17030605

申请日：2020-09-24

Applicant: CORNING INCORPORATED

Inventor： Dana Craig Bookbinder ,  Stephan Lvovich Logunov ,  Darren Andrew Stainer ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/00 ,  C03C25/104 ,  C03C25/12 ,  C03C25/6226 ,  G02B6/02

CPC classification number: C03C25/104 ,  C03C25/12 ,  C03C25/6226 ,  G02B6/02395 ,  C03C2217/73

Abstract: An optical fiber curing component includes a first tube comprising a first body defining a first interior surface and a first exterior surface, the first tube defining a first aperture and a second aperture on opposite ends of a first cavity, wherein the first tube defines a central axis extending through the first cavity; light sources coupled to the first body of the first tube and configured to emit light toward the central axis of the first tube, wherein each of the light sources intersect a common plane defined perpendicular to the central axis of the first tube; a silica glass article, having an anti-reflective coating, disposed between each of the plurality of light sources and the central axis of the first tube; and a reflective coating positioned on the interior surface of the first body and configured to reflect the light toward the central axis of the first tube.

公开(公告)号：US11518709B2

公开(公告)日：2022-12-06

申请号：US16380603

申请日：2019-04-10

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Darren Andrew Stainer ,  Pushkar Tandon ,  Ruchi Tandon ,  Bryan William Wakefield

IPC: C03C25/18 ,  C03B37/025 ,  C03C25/105

Abstract: An optical fiber coating die assembly is provided. The optical fiber coating die assembly includes a housing defining a guide chamber having an inlet for receiving optical fiber and an outlet, a guide die located at the outlet of the guide chamber, and a sizing die. The optical fiber coating die assembly also includes a coating applicator disposed between the guide die and the sizing die, and a tube operatively coupled to the inlet of the guide chamber and axially aligned with the chamber to receive the optical fiber fed into the guide chamber and provide a barrier to air flow.

公开(公告)号：US11407682B2

公开(公告)日：2022-08-09

申请号：US16930723

申请日：2020-07-16

Applicant: CORNING INCORPORATED

Inventor： Dana Craig Bookbinder ,  Pushkar Tandon ,  Ruchi Tandon

IPC: C03C25/20 ,  C03B37/025 ,  C03B37/027 ,  C03B37/03 ,  C03C13/04 ,  C03C25/1065 ,  C03C25/285

Abstract: An optical fiber draw system and method of coating an optical fiber. The system includes a furnace for heating an optical fiber preform, a draw assembly for drawing the optical fiber at a draw speed greater than 50 meters per second, a first coating applicator for applying a first coating onto the fiber, and a first curing assembly comprising a first plurality of light sources comprising light-emitting diodes for partially curing the first coating. The optical fiber draw system also includes a second coating applicator for applying a second coating onto the fiber on top of the first coating, and a second curing system comprising a second plurality of light sources for curing the second coating, wherein the first coating is further cured in the range of 15-50 percent after leaving the first curing assembly.

公开(公告)号：US20180127593A1

公开(公告)日：2018-05-10

申请号：US15794760

申请日：2017-10-26

Applicant: Corning incorporated

Inventor： Yangbin Chen ,  Ching-Kee Chien ,  Michael Edward DeRosa ,  Inna Igorevna Kouzmina ,  Pushkar Tandon ,  Ruchi Tandon

IPC: C09D4/00 ,  C08G18/67 ,  C08G18/66 ,  C08G18/48 ,  C08G18/75 ,  C08G18/12 ,  C03C25/10 ,  G02B6/02

CPC classification number: C09D4/00 ,  C03C25/106 ,  C03C25/326 ,  C08G18/12 ,  C08G18/4825 ,  C08G18/4833 ,  C08G18/6666 ,  C08G18/672 ,  C08G18/6725 ,  C08G18/758 ,  C08G2105/02 ,  C09D175/16 ,  G02B1/14 ,  G02B6/02395 ,  C08G18/48

Abstract: Fiber coatings with low Young's modulus, high tear strength, and/or high critical stress are realized with coating compositions that include an oligomeric material formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomeric material includes a polyether urethane acrylate and a di-adduct compound. The reaction mixture used to form the oligomeric material includes a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where when p is 2, n is in the range from 3.0 to 5.0 and m is in the range from 1.50n-3 to 2.50n-5. Control of the n:m:p ratio leads to compositions that, when cured, provide coatings and cured products having high critical stress, high tear strength, and a high ratio of tear strength to Young's modulus.

公开(公告)号：US20170233600A1

公开(公告)日：2017-08-17

申请号：US15582966

申请日：2017-05-01

Applicant: Corning Incorporated

Inventor： John William Botelho ,  Ruchi Tandon

IPC: C09D133/14

CPC classification number: C09D133/14 ,  C08F2220/286 ,  C09D4/00 ,  C09D133/10 ,  C09D133/12

Abstract: A treated monomer for optical fiber coatings, a coating composition containing the treated monomer, a coating formed from a coating composition containing a treated monomer, and a fiber coated with the coating formed from a coating composition containing a treated monomer. The monomer is an alkoxylated alkyl acrylate and is formed by acrylating a polyol precursor. The monomer may include residual unreacted polyol precursor. The monomer is treated with a derivatizing agent to convert residual unreacted polyol to a derivative form. The derivative form is less susceptible to degradation to the corresponding non-alkoxylated alcohol or other lower alkoxylated alcohol. The treated monomer includes the alkoxylated alkyl acrylate and the derivative form of the polyol.

公开(公告)号：US20150353757A1

公开(公告)日：2015-12-10

申请号：US14711909

申请日：2015-05-14

Applicant: Corning Incorporated

Inventor： John William Botelho ,  Ruchi Tandon

IPC: C09D133/14

CPC classification number: C09D133/14 ,  C08F2220/286 ,  C09D4/00 ,  C09D133/10 ,  C09D133/12

Abstract: A treated monomer for optical fiber coatings, a coating composition containing the treated monomer, a coating formed from a coating composition containing a treated monomer, and a fiber coated with the coating formed from a coating composition containing a treated monomer. The monomer is an alkoxylated alkyl acrylate and is formed by acrylating a polyol precursor. The monomer may include residual unreacted polyol precursor. The monomer is treated with a derivatizing agent to convert residual unreacted polyol to a derivative form. The derivative form is less susceptible to degradation to the corresponding non-alkoxylated alcohol or other lower alkoxylated alcohol. The treated monomer includes the alkoxylated alkyl acrylate and the derivative form of the polyol.

Abstract translation: 用于光纤涂层的经处理的单体，包含经处理的单体的涂料组合物，由含有经处理的单体的涂料组合物形成的涂料以及涂覆有由包含经处理的单体的涂料组合物形成的涂层的纤维。 单体是烷氧基化烷基丙烯酸酯，并通过丙烯酸酯化多元醇前体而形成。 单体可以包括残留的未反应的多元醇前体。 单体用衍生剂处理以将残留的未反应的多元醇转化成衍生形式。 衍生物形式不易于相应的非烷氧基化醇或其它低级烷氧基化醇降解。 经处理的单体包括烷氧基化丙烯酸烷基酯和多元醇的衍生形式。