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公开(公告)号：EP4129944A1
公开(公告)日：2023-02-08
申请号：EP21780367.5
申请日：2021-03-30
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： ISHIDA, Jun , NISHINO, Hiromitsu
Abstract: Provided is an interlayer film for laminated glass capable of preventing a winding core from falling off a roll body of the interlayer film. The interlayer film for laminated glass according to the present invention includes one end and the other end being on an opposite side of the one end, the one end having a thickness of 1.05 mm or less, a first resin layer having a glass transition temperature of less than 15°C, a second resin layer having a glass transition temperature of 15°C or more, and a region where a total number of laminated layers of the first resin layer and the second resin layer in a thickness direction is five or more, and in the region where the total number of laminated layers is five or more, the region has Y 1 /Z being 1.01 or more when a thickness by one layer of surface layers is denoted by Y 1 µm and a thickness by one layer of layers neighboring the surface layers is denoted by Z µm.
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公开(公告)号：EP3865465A1
公开(公告)日：2021-08-18
申请号：EP19870220.1
申请日：2019-10-09
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： NISHINO, Hiromitsu
Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. The interlayer film for laminated glass according to the present invention is an interlayer film for use in a laminated glass that is a head-up display, the interlayer film has one end, and the other end being at the opposite side of the one end, the other end has a thickness larger than a thickness of the one end, the interlayer film has a region for display corresponding to a display region of the head-up display, and when three regions obtained by equally dividing the region for display into three in a direction connecting the one end and the other end are named a first partial region for display, a second partial region for display, and a third partial region for display in sequence from the one end side, as to partial wedge angle A x , B x , and C x in the first, second, and third partial regions for display, and partial wedge angle ϕ x in the region for display satisfy, |A x - ϕ x | is 0.05 mrad or less, |B x - ϕ x | is 0.05 mrad or less, and |C x - ϕ x | is 0.05 mrad or less.
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公开(公告)号：EP3733622A1
公开(公告)日：2020-11-04
申请号：EP18896273.2
申请日：2018-12-21
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： NISHINO, Hiromitsu , OOTA, Yuusuke
Abstract: Provided is an interlayer film for laminated glass with which distortion in the appearance of the laminated glass can be significantly suppressed. The interlayer film for laminated glass according to the present invention has one end, and the other end being at the opposite side of the one end, the other end has a thickness that is larger than a thickness of the one end, the interlayer film as a whole has a wedge angle of 0.1 mrad or more, and the following absolute value A in all sections A located every 150 mm in the following measurement of partial wedge angles is 0.4 mrad or less.
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公开(公告)号：EP4190757A1
公开(公告)日：2023-06-07
申请号：EP21850844.8
申请日：2021-07-26
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： ISHIDA, Jun , NISHINO, Hiromitsu , IWAMOTO, Tatsuya
Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property in a low-frequency region while keeping the sound insulating property in a high-frequency region high. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a two or more-layer structure, the interlayer film has one end, and the other end being at an opposite side of the one end, each layer contained in the interlayer film has one end, and the other end being at an opposite side of the one end, the one end of the each layer is located at the one end side of the interlayer film in a direction connecting the one end and the other end of the interlayer film, the other end of the each layer is located at the other end side of the interlayer film in the direction connecting the one end and the other end of the interlayer film, in the interlayer film, a thickness of the other end is larger than a thickness of the one end, and in at least one layer contained in the interlayer film, a thickness at the other end is smaller than a thickness at the one end.
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公开(公告)号：EP4174041A1
公开(公告)日：2023-05-03
申请号：EP21828861.1
申请日：2021-06-23
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： ISHIDA, Jun , NISHINO, Hiromitsu
Abstract: Provided is an interlayer film for laminated glass capable of suppressing color migration. In an interlayer film for laminated glass according to the present invention, when the interlayer film is arranged between two sheets of clear glass conforming to JIS R3202:1996 to obtain a laminated glass X, and parallel light transmittance is measured for the obtained laminated glass X, the interlayer film has a colored region with a parallel light transmittance of less than 60%, and a transparent region with a parallel light transmittance of 60% or more, the interlayer film has an average thickness in the colored region smaller than an average thickness in the transparent region, and the interlayer film has an absolute value of difference between the average thickness in the colored region and the average thickness in the transparent region of 10 um or more.
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Patent Agency Ranking
公开(公告)号：EP3984976A1
公开(公告)日：2022-04-20
申请号：EP20823302.3
申请日：2020-06-10
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： ISHIDA, Jun , NISHINO, Hiromitsu
Abstract: Provided is an interlayer film for laminated glass with which transmitted double images in the laminated glass can be suppressed. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, and the other end has a thickness larger than a thickness of the one end, and when an inclination of approximate line A and a maximum value of absolute values of deviation in partial wedge angle are calculated according to determination of a specific formula of approximate line A and calculation of deviation in partial wedge angle, the inclination of approximate line A is -0.05 mrad/m or less in at least one section A, and the maximum value of absolute values of deviation in partial wedge angle is 0.2 mrad or less.
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公开(公告)号：EP3357892A1
公开(公告)日：2018-08-08
申请号：EP16851796.9
申请日：2016-09-29
Applicant: Sekisui Chemical Co., Ltd.
Inventor： NISHINO, Hiromitsu , HIROTA, Etsurou , KUMAKURA, Koji
CPC classification number: B32B17/10568 , B29C47/0021 , B29C47/0033 , B29C47/0061 , B29C47/065 , B29K2031/04 , B29L2031/30 , B29L2031/778 , B32B3/263 , B32B17/10541 , B32B17/10761 , B32B2605/006 , B60J1/02 , B60J3/007 , B60K35/00 , B60K2350/2056
Abstract: There is provided an interlayer film for laminated glass with which an air bubble can be made difficult to be left behind between a lamination glass member and the interlayer film when laminated glass is obtained. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and has a portion where the amount of increase in the thickness is increased in a direction from one end to the other end in the region where the thickness is increased, has a portion where the amount of increase in the thickness is decreased in a direction from one end to the other end in the region where the thickness is increased, has a portion where the wedge angle is increased in a direction from one end to the other end in the region where the sectional shape in the thickness direction is a wedge-like shape, or has a portion where the wedge angle is decreased in a direction from one end to the other end in the region where the sectional shape in the thickness direction is a wedge-like shape, and the ten-point average roughness Rz of the surface at a center position of the portion where the amount of increase in the thickness is increased, the portion where the amount of increase in the thickness is decreased, the portion where the wedge angle is increased, or the portion where the wedge angle is decreased is 20 µm or more.
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公开(公告)号：EP3730465A1
公开(公告)日：2020-10-28
申请号：EP18891488.1
申请日：2018-12-18
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： OOTA, Yuusuke , NISHINO, Hiromitsu , KIDO, Koji , HAYASE, Susumu , YOSHIMOTO, Hideto , ISHIDA, Jun
Abstract: Provided is a laminated glass capable of suppressing multiple images and enhancing the heat shielding properties, and enhancing the uniformity of heat shield properties or color tone between one end side and the other end side of the laminated glass. A laminated glass according to the present invention has one end, and the other end being at the opposite side of the one end and having a thickness larger than a thickness of the one end; the laminated glass includes a first lamination glass member, a second lamination glass member, and an interlayer film arranged between the first lamination glass member and the second lamination glass member; the first lamination glass member has a wedge angle of 0.10 mrad or more; the wedge angle of the first lamination glass member is equal to a wedge angle of the interlayer film or larger than the wedge angle of the interlayer film, and the interlayer film contains a heat shielding substance.
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公开(公告)号：EP3730464A1
公开(公告)日：2020-10-28
申请号：EP18890743.0
申请日：2018-12-18
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： YOSHIMOTO, Hideto , OOTA, Yuusuke , KIDO, Koji , NISHINO, Hiromitsu , HAYASE, Susumu , ISHIDA, Jun
Abstract: Provided is a laminated glass capable of suppressing multiple images. The laminated glass according to the present invention has one end, and the other end being at the opposite side of the one end and having a thickness larger than a thickness of the one end, and includes a first lamination glass member, a second lamination glass member, and an interlayer film arranged between the first lamination glass member and the second lamination glass member, and the interlayer film has a wedge angle of 0.10 mrad or more and 2.0 mrad or less, and the laminated glass has wedge angle of larger than the wedge angle of the interlayer film.
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公开(公告)号：EP3597613A1
公开(公告)日：2020-01-22
申请号：EP18768365.1
申请日：2018-03-14
Applicant: Sekisui Chemical Co., Ltd.
Inventor： NISHINO, Hiromitsu , KIDO, Koji , OOTA, Yuusuke
Abstract: Provided is an interlayer film for laminated glass with which change in partial wedge angle can be suppressed at the time of preparation of laminated glass, and double images can be suppressed in the laminated glass. The interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end; the thickness of the interlayer film does not increase evenly from the one end toward the other end, and an average rate of change in partial wedge angle determined by the following formula (X) is 10% or less when an interlayer film finally pressure-bonded is obtained through a predetermined process using the interlayer film for laminated glass as an interlayer film before pressure-bonding, and each partial wedge angle is measured in each of the interlayer film before pressure-bonding and the interlayer film after final pressure-bonding. final pressure-bonding . Rate of change in partial wedge angle % = Partial wedge angle of interlayer film after final pressure-bonding − Partial wedge angle of interlayer film before pressure-bonding / Partial wedge angle of interlayer film before pressure-bonding × 100
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