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公开(公告)号：US10690819B2
公开(公告)日：2020-06-23
申请号：US15668338
申请日：2017-08-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bimal V. Thakkar , Jeffrey O. Emslander , Bryan C. Feisel
Abstract: The relates to multi-layer sealing films for microstructured articles. The multi-layer sealing film may include two or more layers. The multi-layer sealing film has an elastic modulus of at least 3.5×105 kPa and the flexural rigidity of the microstructured article is less than about 4.0×10−8 N·m2.
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公开(公告)号：US10132969B2
公开(公告)日：2018-11-20
申请号：US15458795
申请日：2017-03-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth L. Smith , Michael Benton Free , Bimal V. Thakkar , Raymond C. Chiu
IPC: G02B5/124 , G02B5/122 , B32B3/30 , B32B7/12 , B32B15/20 , B32B27/08 , B32B27/28 , B32B27/30 , B32B27/32 , B32B27/34 , B32B27/38 , B32B27/42 , B32B3/26
Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
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公开(公告)号：US09971074B2
公开(公告)日：2018-05-15
申请号：US14913269
申请日：2014-08-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Reema Chatterjee , Stephen A. Johnson , Robert F. Watkins , Bimal V. Thakkar
IPC: G02B5/124 , B29D11/00 , B32B7/12 , B32B27/08 , B32B27/32 , B32B27/34 , B32B3/30 , B32B27/36 , B32B3/10 , B32B3/14 , B32B3/18 , B29K67/00
CPC classification number: G02B5/124 , B29D11/00605 , B29K2067/003 , B29K2995/003 , B32B3/10 , B32B3/14 , B32B3/18 , B32B3/30 , B32B7/12 , B32B27/08 , B32B27/32 , B32B27/322 , B32B27/34 , B32B27/36 , B32B27/365 , B32B2250/02 , B32B2250/24 , B32B2307/416 , B32B2307/51 , B32B2307/518 , B32B2307/702 , B32B2307/704 , B32B2551/00 , B32B2590/00
Abstract: The present application generally relates to retroreflective articles and methods of making retroreflective articles. The retroreflective articles include a substantially amorphous polymeric layer between the body layer and the discrete truncated cube corner elements. The substantially amorphous polymeric layer absorbs, dissipates, and/or accommodates at least some of the stress forces placed on the retroreflective article during processing. As a result, discrete truncated cube corner elements with increased fidelity can be formed. Consequently, retroreflective sheeting including a substantially amorphous polymeric layer has increased brightness compared to similarly made and composed sheeting lacking the substantially amorphous polymeric layer.
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公开(公告)号：US10598823B2
公开(公告)日：2020-03-24
申请号：US15603072
申请日：2017-05-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： David W. Meitz , Bimal V. Thakkar , David M. Burns , David B. Olson , Lee A. Pavelka
IPC: G02B5/124 , G02B1/04 , C08L23/08 , C08F220/18 , C08K5/3492 , G02B5/20
Abstract: The present application generally relates to EAA films including at least one triazine-based ultraviolet absorber. The present application also generally relates to retroreflective sheeting including an EAA film including a triazine-based ultraviolet absorber. One embodiments of the present application relates to a film, comprising poly(ethylene-co-acrylic acid) and a triazine-based UVA. Another embodiment of the present application relates to retroreflective sheeting, comprising: a plurality of cube corner elements; and a body layer adjacent to the cube corner elements, the body layer including poly(ethylene-co-acrylic acid) and a triazine-based UVA.
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公开(公告)号：US10379271B2
公开(公告)日：2019-08-13
申请号：US15887479
申请日：2018-02-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael Benton Free , Bimal V. Thakkar , Mieczyslaw H. Mazurek , Kenneth L. Smith , Suman K. Patel , William D. Coggio , Mikhail L. Pekurovsky
IPC: G02B5/124
Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
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Patent Agency Ranking
公开(公告)号：US20170254926A1
公开(公告)日：2017-09-07
申请号：US15603072
申请日：2017-05-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： David W. Meitz , Bimal V. Thakkar , David M. Burns , David B. Olson , Lee A. Pavelka
IPC: G02B1/04 , C08F220/18 , G02B5/20 , G02B5/124 , C08L23/08 , C08K5/3492
Abstract: The present application generally relates to EAA films including at least one triazine-based ultraviolet absorber. The present application also generally relates to retroreflective sheeting including an EAA film including a triazine-based ultraviolet absorber. One embodiments of the present application relates to a film, comprising poly(ethylene-co-acrylic acid) and a triazine-based UVA. Another embodiment of the present application relates to retroreflective sheeting, comprising: a plurality of cube corner elements; and a body layer adjacent to the cube corner elements, the body layer including poly(ethylene-co-acrylic acid) and a triazine-based UVA.
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公开(公告)号：US09746592B2
公开(公告)日：2017-08-29
申请号：US15175892
申请日：2016-06-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bimal V. Thakkar , Jeffrey O. Emslander , Bryan C. Feisel
CPC classification number: G02B5/124 , G02B1/04 , G02B1/14 , Y10T428/24562 , Y10T428/24942
Abstract: The relates to multi-layer sealing films for microstructured articles. The multi-layer sealing film may include two or more layers. The multi-layer sealing film has an elastic modulus of at least 3.5×105 kPa and the flexural rigidity of the microstructured article is less than about 4.0×10−8 N·m2.
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公开(公告)号：US20210088695A1
公开(公告)日：2021-03-25
申请号：US17114821
申请日：2020-12-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bimal V. Thakkar , Jay M. Jennen , Robert D. Hamann , Ryan M. Braun , Robert F. Watkins , Joseph D. Rule , Todd D. Jones , Charlie C. Ho
Abstract: The disclosed aliphatic thermoplastic polyurethane composition is well suited for use in thin, flexible light directing articles to impart flexibility, toughness, or protection to the light directing articles that contain optically active elements. The disclosed aliphatic thermoplastic polyurethanes have improved thermostability at higher temperatures. Specifically, the disclosed aliphatic thermoplastic polyurethanes have a cross-over temperature greater than 110° C. In one embodiment, the cross-over temperature is greater than 130° C. In one embodiment, the cross-over temperature is less than 170° C. and a Tg greater than 35° C. and less than 70° C.
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公开(公告)号：US10557976B2
公开(公告)日：2020-02-11
申请号：US16193831
申请日：2018-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth L. Smith , Michael Benton Free , Bimal V. Thakkar , Raymond C. Chiu
IPC: G02B5/124 , B32B7/12 , B32B15/20 , B32B27/08 , B32B27/28 , B32B27/30 , B32B27/32 , B32B27/34 , B32B27/38 , B32B27/42 , B32B3/26 , B32B3/30 , G02B5/122
Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
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10.发明申请公开(公告)号：US20160209558A1
公开(公告)日：2016-07-21
申请号：US14913269
申请日：2014-08-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Reema Chatterjee , Stephen A. Johnson , Robert F. Watkins , Bimal V. Thakkar
CPC classification number: G02B5/124 , B29D11/00605 , B29K2067/003 , B29K2995/003 , B32B3/10 , B32B3/14 , B32B3/18 , B32B3/30 , B32B7/12 , B32B27/08 , B32B27/32 , B32B27/322 , B32B27/34 , B32B27/36 , B32B27/365 , B32B2250/02 , B32B2250/24 , B32B2307/416 , B32B2307/51 , B32B2307/518 , B32B2307/702 , B32B2307/704 , B32B2551/00 , B32B2590/00
Abstract: The present application generally relates to retroreflective articles and methods of making retroreflective articles. The retroreflective articles include a substantially amorphous polymeric layer between the body layer and the discrete truncated cube corner elements. The substantially amorphous polymeric layer absorbs, dissipates, and/or accommodates at least some of the stress forces placed on the retroreflective article during processing. As a result, discrete truncated cube corner elements with increased fidelity can be formed. Consequently, retroreflective sheeting including a substantially amorphous polymeric layer has increased brightness compared to similarly made and composed sheeting lacking the substantially amorphous polymeric layer
Abstract translation: 本申请一般涉及回射制品和制造回射制品的方法。 逆反射制品包括在主体层和离散的截短立体角元件之间的基本无定形的聚合物层。 在加工过程中，基本无定形的聚合物层吸收，消散和/或容纳放置在逆反射制品上的至少一些应力。 结果，可以形成具有提高的保真度的分立的截顶立体角元件。 因此，与基本上无定形聚合物层的类似制造和组合的片材相比，包括基本无定形的聚合物层的回射片材具有增加的亮度
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