US 2026/0184046 A1Published application

Interlayer film for laminated glass, and laminated glass

AssigneeSekisui Chemical Co., Ltd.

InventorsKoushi YAMAZAKI, Ryouta SAITOU

Life of this patent

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Abstract

Provided is an interlayer film for laminated glass capable of enhancing the vibration damping property in a high frequency region in end parts of laminated glass corresponding to end parts of the interlayer film. The interlayer film for laminated glass according to the present invention has a first end, and a second end being at an opposite side of the first end, and when laminated glasses P, Q, R, S obtained by arranging a specific part of the interlayer film between two sheets of 2.0 mm-thick green glass are obtained, a specific configuration A or a specific configuration B is satisfied.

Claims21

Dependent claims

An interlayer film for laminated glass,

the interlayer film having a first end, and a second end being at an opposite side of the first end,
provided that a laminated glass P is obtained by arranging a part of the interlayer film from a position of 0 mm to a position of 25 mm from the first end toward the second end between two sheets of 2.0 mm-thick green glass,
a laminated glass Q is obtained by arranging a part of the interlayer film from a position of 100 mm to a position of 125 mm from the first end toward the second end between two sheets of 2.0 mm-thick green glass,
a laminated glass R is obtained by arranging a part of the interlayer film from a position of 0 mm to a position of 25 mm from the second end toward the first end between two sheets of 2.0 mm-thick green glass, and
a laminated glass S is obtained by arranging a part of the interlayer film from a position of 100 mm to a position of 125 mm from the second end toward the first end between two sheets of 2.0 mm-thick green glass,
configuration A or configuration B below being satisfied:
configuration A:
change rate A1 represented by formula (A1) below is less than 10%, and change rate A2 represented by formula (A2) below is less than 10%,
change
⁢
rate
⁢
A
⁢
1
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
A
-
Q
A
❘
"\[RightBracketingBar]"
/
Q
A
)
×
100
(
A1
)
PA:
secondary loss coefficient of the laminated glass P,
QA:
secondary loss coefficient of the laminated glass Q,
change
⁢
rate
⁢
A
⁢
2
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
A
-
S
A
❘
"\[RightBracketingBar]"
/
S
A
)
×
100
(
A2
)
RA:
secondary loss coefficient of the laminated glass R,
SA:
secondary loss coefficient of the laminated glass S,
configuration B:
change rate B1 represented by formula (B1) below is less than 10%, and change rate B2 represented by formula (B2) below is less than 10%,
change
⁢
rate
⁢
B
⁢
1
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
B
-
Q
B
❘
"\[RightBracketingBar]"
/
Q
B
)
×
100
(
B1
)
PB:
secondary resonance frequency of the laminated glass P,
QB:
secondary resonance frequency of the laminated glass Q,
change
⁢
rate
⁢
B
⁢
2
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
B
-
S
B
❘
"\[RightBracketingBar]"
/
S
B
)
×
100
(
B2
)
RB:
secondary resonance frequency of the laminated glass R,
SB:
secondary resonance frequency of the laminated glass S.

147 more elements

A laminated glass, having a first end, and a second end being at an opposite side of the first end, wherein configuration A′ below or configuration B′ is satisfied:

Configuration A′:
change rate A3 represented by formula (A3) below is less than 10%, and change rate A4 represented by formula (A4) below is less than 10%,
change
⁢
rate
⁢
A
⁢
3
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
A
′
-
Q
A
′
❘
"\[RightBracketingBar]"
/
Q
A
′
)
×
100
(
A3
)
PA′:
a secondary loss coefficient of the laminated glass in a part of the laminated glass from a position of 0 mm to a position of 25 mm from the first end toward the second end,
QA′:
a secondary loss coefficient of the laminated glass in a part of the laminated glass from a position of 100 mm to a position of 125 mm from the first end toward the second end,
change
⁢
rate
⁢
A
⁢
4
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
A
′
-
S
A
′
❘
"\[RightBracketingBar]"
/
S
A
′
)
×
100
(
A4
)
RA′:
a secondary loss coefficient of the laminated glass in a part of the laminated glass from a position of 0 mm to a position of 25 mm from the second end toward the first end,
SA′:
a secondary loss coefficient of the laminated glass in a part of the laminated glass from a position of 100 mm to a position of 125 mm from the second end toward the first end,
configuration B′:
change rate B3 represented by formula (B3) below is less than 10%, and change rate B4 represented by formula (B4) below is less than 10%,
change
⁢
rate
⁢
B
⁢
3
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
B
′
-
Q
B
′
❘
"\[RightBracketingBar]"
/
Q
B
′
)
×
100
(
B3
)
PB′:
a secondary resonance frequency of the laminated glass in a part of the laminated glass from a position of 0 mm to a position of 25 mm from the first end toward the second end,
QB′:
a secondary resonance frequency of the laminated glass in a part of the laminated glass from a position of 100 mm to a position of 125 mm from the first end toward the second end,
change
⁢
rate
⁢
B
⁢
4
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
B
′
-
S
B
′
❘
"\[RightBracketingBar]"
/
S
B
′
)
×
100
(
B4
)
RB′:
a secondary resonance frequency of the laminated glass in a part of the laminated glass from a position of 0 mm to a position of 25 mm from the second end toward the first end,
SB′:
a secondary resonance frequency of the laminated glass in a part of the laminated glass from a position of 100 mm to a position of 125 mm from the second end toward the first end.

153 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/125,495Filed 27 Mar 2024
Priority: JP 2023-05872231 Mar 2023
Published: 2 Jul 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

B32B 17/10366
Functional features of the laminated safety glass or glazing: reinforcements of the laminated safety glass or glazing against impact or intrusion
B32B 7/027
Physical, chemical or physicochemical properties: thermal properties
B32B 17/10036
Characterized by the number, the constitution or treatment of glass sheets: comprising two outer glass sheets
B32B 17/10568
Shape of the cross-section: varying in thickness

Family

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Abstract

An interlayer film for laminated glass,

the interlayer film having a first end, and a second end being at an opposite side of the first end,
provided that a laminated glass P is obtained by arranging a part of the interlayer film from a position of 0 mm to a position of 25 mm from the first end toward the second end between two sheets of 2.0 mm-thick green glass,
a laminated glass Q is obtained by arranging a part of the interlayer film from a position of 100 mm to a position of 125 mm from the first end toward the second end between two sheets of 2.0 mm-thick green glass,
a laminated glass R is obtained by arranging a part of the interlayer film from a position of 0 mm to a position of 25 mm from the second end toward the first end between two sheets of 2.0 mm-thick green glass, and
a laminated glass S is obtained by arranging a part of the interlayer film from a position of 100 mm to a position of 125 mm from the second end toward the first end between two sheets of 2.0 mm-thick green glass,
configuration A or configuration B below being satisfied:
configuration A:
change rate A1 represented by formula (A1) below is less than 10%, and change rate A2 represented by formula (A2) below is less than 10%,
change
⁢
rate
⁢
A
⁢
1
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
A
-
Q
A
❘
"\[RightBracketingBar]"
/
Q
A
)
×
100
(
A1
)
PA:
secondary loss coefficient of the laminated glass P,
QA:
secondary loss coefficient of the laminated glass Q,
change
⁢
rate
⁢
A
⁢
2
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
A
-
S
A
❘
"\[RightBracketingBar]"
/
S
A
)
×
100
(
A2
)
RA:
secondary loss coefficient of the laminated glass R,
SA:
secondary loss coefficient of the laminated glass S,
configuration B:
change rate B1 represented by formula (B1) below is less than 10%, and change rate B2 represented by formula (B2) below is less than 10%,
change
⁢
rate
⁢
B
⁢
1
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
P
B
-
Q
B
❘
"\[RightBracketingBar]"
/
Q
B
)
×
100
(
B1
)
PB:
secondary resonance frequency of the laminated glass P,
QB:
secondary resonance frequency of the laminated glass Q,
change
⁢
rate
⁢
B
⁢
2
⁢
(
%
)
=
(
❘
"\[LeftBracketingBar]"
R
B
-
S
B
❘
"\[RightBracketingBar]"
/
S
B
)
×
100
(
B2
)
RB:
secondary resonance frequency of the laminated glass R,
SB:
secondary resonance frequency of the laminated glass S.

147 more elements

Facts

Application

19/125,495Filed 27 Mar 2024

Priority

JP 2023-05872231 Mar 2023

Published

2 Jul 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

B32B 17/10366
Functional features of the laminated safety glass or glazing: reinforcements of the laminated safety glass or glazing against impact or intrusion
B32B 7/027
Physical, chemical or physicochemical properties: thermal properties
B32B 17/10036
Characterized by the number, the constitution or treatment of glass sheets: comprising two outer glass sheets
B32B 17/10568
Shape of the cross-section: varying in thickness