公开(公告)号：US09810838B2

公开(公告)日：2017-11-07

申请号：US14461685

申请日：2014-08-18

Applicant: Corning Incorporated

Inventor： Yangbin Chen ,  Manuela Ocampo ,  Ruchi Tandon

IPC: G02B6/02 ,  C08G18/75 ,  C08G18/48 ,  C08G18/04 ,  C09D175/16 ,  G02B1/14 ,  C03C25/10 ,  C08G18/67

CPC classification number: G02B6/02395 ,  C03C25/106 ,  C08G18/04 ,  C08G18/4825 ,  C08G18/672 ,  C08G18/758 ,  C09D175/16 ,  G02B1/14 ,  C08G18/48

Abstract: Fiber coatings with low Young's modulus and high tear strength 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, where the di-adduct compound is present in an amount of at least 2.35 wt %. The reaction mixture used to form the oligomeric material may include a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where n may be greater than 3.0, m may be between n−1 and 2n−4, and p may be 2. Young's modulus and tear strength of coatings made from the compositions increase with increasing n. Coatings formed from the present oligomers feature high tear strength for a given Young's modulus.

公开(公告)号：US09708491B2

公开(公告)日：2017-07-18

申请号：US14711909

申请日：2015-05-14

Applicant: Corning Incorporated

Inventor： John William Botelho ,  Ruchi Tandon

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09D4/00 ,  C09D133/10 ,  C09D133/12 ,  C09D133/14 ,  C08F220/28

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.