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公开(公告)号：US11567239B2
公开(公告)日：2023-01-31
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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Patent Agency Ranking
公开(公告)号：US12168743B2
公开(公告)日：2024-12-17
申请号：US16647655
申请日：2018-09-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Charlie Chia-Tie Ho , Yongshang Lu , John J. Jaros , Jay M. Jennen , Ryan M. Braun , Sean P. Addison , Trevor A. Larson , Ricky L. Nelson , Robert D. Hamann
IPC: C09J7/29 , B29C48/00 , B29C48/08 , B29K75/00 , B29L7/00 , B32B27/06 , B32B27/40 , C08G18/32 , C08G18/42 , C08G18/66 , C08G18/75 , C08J5/18 , C09D175/06 , C09J7/25 , C09J7/38
Abstract: Various embodiments disclosed relate to a surfacing film. The surfacing film includes a base layer. The base layer includes a thermoplastic polyurethane film comprising a reaction product of a reaction mixture of a diisocyanate, a polyester polyol having a melting temperature of at least about 30° C.; and a diol chain extender. There are many reasons to use the surfacing film including easier and more cost effective manufacturing of the surfacing film by directly extruding the base layer by mixing the reaction mixture in an extruder. Another reason to use the surfacing film is that the film has improved resistance to discoloration. Another reason to use the film is that the film shows good toughness.
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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：US10590303B2
公开(公告)日：2020-03-17
申请号：US15328530
申请日：2015-07-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Charlie C. Ho , Robert D. Hamann , Jeremy P. Gundale , Vijay Rajamani , Ken Egashira , Chia Hui Lin , Hsi Shou Kuo
IPC: C09D175/06 , B29C48/08 , B29C48/00 , B32B7/12 , B32B27/40 , B29C51/14 , C08G18/75 , C08G18/42 , B32B27/08 , B32B27/30 , C08G18/66 , B32B27/36 , C09J7/25 , B29C51/10 , B29K75/00 , B29L9/00 , B29L31/30 , B29L31/00
Abstract: Disclosed herein are improved thermoplastic polyurethane compositions, articles, and related methods. These compositions include aliphatic thermoplastic polyurethanes having a hard segment content ranging from 57 percent to 80 percent by weight. The hard coat compositions have a Shore D hardness of at least 70 and can display an Elongation at Break test result at 25 degrees Celsius of at least 150 percent. These materials, when hardened, can serve decorative and/or protective functions while displaying both a high degree of elongation at moderate temperatures and high hardness.
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公开(公告)号：US10884163B2
公开(公告)日：2021-01-05
申请号：US15742322
申请日：2016-06-24
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：US20180203163A1
公开(公告)日：2018-07-19
申请号：US15742322
申请日：2016-06-24
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
CPC classification number: G02B1/14 , C08J5/18 , C08J2375/06 , G02B5/12 , G02B5/124 , G02B26/0825
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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