Optical waveguide-forming composition

Patent metadata

Field	Value
Publication number	US-10253126-B2
Application number	US-201615770391-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Oct 21, 2015
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

An optical waveguide-forming composition: 100 parts by mass of a reactive silicone compound (a) composed of a polycondensate of a diarylsilicic acid compound A of Formula [1]

Ar 1 and Ar 2 are a phenyl, naphthyl or a biphenyl group optionally substituted, and an alkoxy silicon compound B of Formula [2]

Ar 3 —Si(OR 1 ) a R 2 3-a   [2].

Ar 3 is a phenyl, naphthyl or biphenyl group having at least one group having a polymerizable double bond, R 1 is methyl or ethyl group, R 2 is methyl, ethyl, or vinylphenyl group, and a is 2 or 3, and 1 part by mass to 200 parts by mass of a di(meth)acrylate compound (b) of Formula [3].

R 3 and R 4 are a hydrogen atom or methyl group, R 5 is a hydrogen atom, methyl group, or ethyl group, L 1 and L 2 are an alkylene group, and m and n are 0 or a positive integer, wherein m+n is 0 to 20.

First claim

The invention claimed is:

1. An optical waveguide-forming composition comprising: 100 parts by mass of a reactive silicone compound (a) composed of a polycondensate of a diarylsilicic acid compound A of Formula [1] and an alkoxy silicon compound B of Formula [2], or a polycondensate of the diarylsilicic acid compound A, the alkoxy silicon compound B, and another polycondensable compound; and 1 part by mass to 200 parts by mass of a di(meth)acrylate compound (b) of Formula [3]:

(wherein Ar 1 and Ar 2 are independently a phenyl group optionally substituted with a C 1-6 alkyl group, a naphthyl group optionally substituted with a C 1-6 alkyl group, or a biphenyl group optionally substituted with a C 1-6 alkyl group),
Ar 3 Si(OR 1 ) a R 2 3-a   [2]

(wherein Ar 3 is a phenyl group having at least one group having a polymerizable double bond, a naphthyl group having at least one group having a polymerizable double bond, or a biphenyl group having at least one group having a polymerizable double bond, R 1 is independently methyl group or ethyl group, R 2 is methyl group, ethyl group, or vinylphenyl group, and a is 2 or 3),

(wherein R 3 and R 4 are independently a hydrogen atom or methyl group, R 5 is a hydrogen atom, methyl group, or ethyl group, L 1 and L 2 are independently a C 2-6 alkylene group, and m and n are 0 or a positive integer, wherein m+n is 0 to 20).

2. The optical waveguide-forming composition according to claim 1 , wherein Ar 1 and Ar 2 are phenyl group, and Ar 3 is 4-vinylphenyl group.

3. The optical waveguide-forming composition according to claim 2 , wherein the reactive silicone compound is composed of a polycondensate of the diarylsilicic acid compound A of Formula [1] and the alkoxy silicon compound B of Formula [2].

4. An optical waveguide comprising a cured product of the optical waveguide-forming composition according to claim 3 .

5. The optical waveguide according to claim 4 , comprising cladding formed of a cured product of the optical waveguide-forming composition.

6. The optical waveguide according to claim 5 , comprising a core formed of a cured product of a composition including: 100 parts by mass of a reactive silicone compound (x) composed of a polycondensate of a diarylsilicic acid compound A of Formula [1] and an alkoxy silicon compound B of Formula [2], or a polycondensate of the diarylsilicic acid compound A, the alkoxy silicon compound B, and another polycondensable compound; and 0.1 part by mass to 100 parts by mass of an aromatic vinyl compound (y) of Formula [4]:

(wherein Ar 1 and Ar 2 are independently a phenyl group optionally substituted with a C 1-6 alkyl group, a naphthyl group optionally substituted with a C 1-6 alkyl group, or a biphenyl group optionally substituted with a C 1-6 alkyl group),
Ar 3 Si(OR 1 ) a R 2 3-a   [2]

(wherein Ar 3 is a phenyl group having at least one group having a polymerizable double bond, a naphthyl group having at least one group having a polymerizable double bond, or a biphenyl group having at least one group having a polymerizable double bond, R 1 is independently methyl group or ethyl group, R 2 is methyl group, ethyl group, or vinylphenyl group, and a is 2 or 3),

(wherein R 6 is a hydrogen atom or methyl group, L 3 is a single bond, a hydrogen atom, an oxygen atom, a C 1-20 q-valent aliphatic hydrocarbon residue optionally substituted with a phenyl group, or a C 1-20 q-valent aliphatic hydrocarbon residue optionally including an ether bond, Ar 4 is a p+1-valent aromatic hydrocarbon residue, p is independently 1 or 2, and q is an integer of 1 to 3 (wherein q is 1 when L 3 is a hydrogen atom, and q is 2 when L 3 is a single bond or an oxygen atom)).

7. The optical waveguide according to claim 4 , comprising a core formed of a cured product of a composition including: 100 parts by mass of a reactive silicone compound (x) composed of a polycondensate of a diarylsilicic acid compound A of Formula [1] and an alkoxy silicon compound B of Formula [2], or a polycondensate of the diarylsilicic acid compound A, the alkoxy silicon compound B, and another polycondensable compound; and 0.1 part by mass to 100 parts by mass of an aromatic vinyl compound (y) of Formula [4]:

(wherein Ar 1 and Ar 2 are independently a phenyl group optionally substituted with a C 1-6 alkyl group, a naphthyl group optionally substituted with a C 1-6 alkyl group, or a biphenyl group optionally substituted with a C 1-6 alkyl group),
Ar 3 Si(OR 1 ) a R 2 3-a   [2]

(wherein Ar 3 is a phenyl group having at least one group having a polymerizable double bond, a naphthyl group having at least one group having a polymerizable double bond, or a biphenyl group having at least one group having a polymerizable double bond, R 1 is independently methyl group or ethyl group, R 2 is methyl group, ethyl group, or vinylphenyl group, and a is 2 or 3),

(wherein R 6 is a hydrogen atom or methyl group, L 3 is a single bond, a hydrogen atom, an oxygen atom, a C 1-20 q-valent aliphatic hydrocarbon residue optionally substituted with a phenyl group, or a C 1-20 q-valent aliphatic hydrocarbon residue optionally including an ether bond, Ar 4 is a p+1-valent aromatic hydrocarbon residue, p is independently 1 or 2, and q is an integer of 1 to 3 (wherein q is 1 when L 3 is a hydrogen atom, and q is 2 when L 3 is a single bond or an oxygen atom)).

8. An optical waveguide comprising a cured product of the optical waveguide-forming composition according to claim 2 .

9. The optical waveguide according to claim 8 , comprising cladding formed of a cured product of the optical waveguide-forming composition.

10. The optical waveguide according to claim 9 , comprising a core formed of a cured product of a composition including: 100 parts by mass of a reactive silicone compound (x) composed of a polycondensate of a diarylsilicic acid compound A of Formula [1] and an alkoxy silicon compound B of Formula [2], or a polycondensate of the diarylsilicic acid compound A, the alkoxy silicon compound B, and another polycondensable compound; and 0.1 part by mass to 100 parts by mass of an aromatic vinyl compound (y) of Formula [4]:

(wherein Ar 1 and Ar 2 are independently a phenyl group optionally substituted with a C 1-6 alkyl group, a naphthyl group optionally substituted with a C 1-6 alkyl group, or a biphenyl group optionally substituted with a C 1-6 alkyl group),
Ar 3 Si(OR 1 ) a R 2 3-a   [2]

(wherein Ar 3 is a phenyl group having at least one group having a polymerizable double bond, a naphthyl group having at least one group having a polymerizable double bond, or a biphenyl group having at least one group having a polymerizable double bond, R 1 is independently methyl group or ethyl group, R 2 is methyl group, ethyl group, or vinylphenyl group, and a is 2 or 3),

Assignees

• Nissan Chemical Ind Ltd

Inventors

• Nagasawa Takehiro
• Ohmori Kentaro

Classifications

• G02B6/12

  of the integrated circuit kind (electric integrated circuits H10B, H10D84/00 - H10D89/00, H10F19/00, H10F39/00, H10H29/00, H10K19/00, H10K39/00, H10K59/00, H10N19/00, H10N39/00, H10N59/00, H10N69/00, H10N79/00, H10N89/00) · CPC title

• G02B1/046

  characterised by the core material · CPC title

• C08L83/04

  Polysiloxanes · CPC title

• C08G77/80

  Siloxanes having aromatic substituents, e.g. phenyl side groups · CPC title

• C08F290/14 Primary

  Polymers provided for in subclass C08G · CPC title