# US 2018/0022066 A1 · Laminated-glass interlayer and laminated glass > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022066 A1 - Document ID: US20180022066A1 - Status: Published application - Kind: A1 - Application number: 15/549,015 - Filed: 2016-02-05 - Published: 2018-01-25 - Earliest claimed: 2015-02-05 - Assignees: Sekisui Chemical Co., Ltd. - Applicants: Sekisui Chemical Co., Ltd. - Inventors: Tatsuya Iwamoto; Nami Minakuchi - Web page: https://patentgrep.com/patent/US20180022066A1 ## CPC - B32B 17/10761: {containing vinyl acetal} - B32B 17/10036: {comprising two outer glass sheets} - B32B 17/10605: {Type of plasticiser} - B32B 17/10633: {Infrared radiation absorbing or reflecting agents} - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 27/22: using plasticisers - B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers} - B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers} - B32B 27/08: of synthetic resin - B32B 2250/03: 3 layers - B32B 2307/102: Insulating - B32B 2307/30: having particular thermal properties - B32B 2307/308: Heat stability - B32B 2307/734: Dimensional stability - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract There is provided an interlayer film for laminated glass with which the thickness of a sheet of laminated glass can be controlled with high precision. The interlayer film for laminated glass according to the present invention has an MD direction and a TD direction, and the dimension in the MD direction of the interlayer film after storage is 1.05X or more when an interlayer film with a dimension in the MD direction of X is heated for 10 minutes at 110° C., the heated interlayer film is extended so that the dimension in the MD direction becomes 1.2X, the interlayer film in the extended state is fixed by a fixture, the fixed interlayer film is immersed for 1 minute in water at 0° C., the interlayer film is taken out of water at 0° C., the fixture is removed from the interlayer film, the interlayer film from which the fixture is removed is stored for 10 hours at a temperature of 23° C. and a humidity of 30% RH, and the interlayer film after storage is measured for the dimension in the MD direction. ## Claims ### Claim 1 An interlayer film for laminated glass, having an MD direction and a TD direction, the dimension in the MD direction of the interlayer film after storage being 1.05X or more when an interlayer film with a dimension in the MD direction of X is heated for 10 minutes at 110° C., the heated interlayer film is extended so that the dimension in the MD direction becomes 1.2X, the interlayer film in the extended state is fixed by a fixture, the fixed interlayer film is immersed for 1 minute in water at 0° C., the interlayer film is taken out of water at 0° C., the fixture is removed from the interlayer film, the interlayer film from which the fixture is removed is stored for 10 hours at a temperature of 23° C. and a humidity of 30% RH, and the interlayer film after storage is measured for the dimension in the MD direction. ### Claim 2 (depends on 1) The interlayer film for laminated glass according to claim 1, wherein the dimension in the MD direction of the interlayer film after stored for 10 hours at a temperature of 23° C. and a humidity of 30% RH is 1.08X or more. ### Claim 3 (depends on 1) The interlayer film for laminated glass according to claim 1, further having a one-layer structure or a two or more-layer structure and being provided with a first layer containing a thermoplastic resin, the softening point of the first layer being 60° C. or more. ### Claim 4 (depends on 3) The interlayer film for laminated glass according to claim 3, further comprising a second layer containing a thermoplastic resin, the first layer being arranged on a first surface side of the second layer. ### Claim 5 (depends on 4) The interlayer film for laminated glass according to claim 4, wherein the thermoplastic resin in the first layer is a polyvinyl acetal resin and the thermoplastic resin in the second layer is a polyvinyl acetal resin. ### Claim 6 (depends on 5) The interlayer film for laminated glass according to claim 5, wherein the content of the hydroxyl group of the polyvinyl acetal resin in the first layer is larger by 9.5% by mole or more than the content of the hydroxyl group of the polyvinyl acetal resin in the second layer. ### Claim 7 (depends on 4) The interlayer film for laminated glass according to claim 4, wherein the second layer contains filler. ### Claim 8 (depends on 4) The interlayer film for laminated glass according to claim 4, further comprising a third layer containing a thermoplastic resin, the third layer being arranged on a second surface side at the opposite side of the first surface of the second layer. ### Claim 9 (depends on 3) The interlayer film for laminated glass according to claim 3, wherein the thermoplastic resin in the first layer is a polyvinyl acetal resin and the content of the hydroxyl group of the polyvinyl acetal resin in the first layer is 33% by mole or more. ### Claim 10 (depends on 3) The interlayer film for laminated glass according to claim 3, wherein the first layer contains a plasticizer and the content of the plasticizer in the first layer is 25 parts by weight or more and 35 parts by weight or less relative to 100 parts by weight of the thermoplastic resin in the first layer. ### Claim 11 (depends on 1) Laminated glass, comprising: a first lamination glass member; a second lamination glass member; and the interlayer film for laminated glass according to claim 1, the interlayer film for laminated glass being arranged between the first lamination glass member and the second lamination glass member.