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公开(公告)号:US11033763B2
公开(公告)日:2021-06-15
申请号:US15503732
申请日:2015-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Nhat Ha Thi Nguyen , Thomas J. Xue , Seyed A. Angadjivand , Ronald W. Ausen , William J. Kopecky , Mark T. Gibson , Olof N. Hansson , Joseph P. Kronzer
Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
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公开(公告)号:US20170274228A1
公开(公告)日:2017-09-28
申请号:US15503732
申请日:2015-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Nhat Ha Thi Nguyen , Thomas J. Xue , Seyed A. Angadjivand , Ronald W. Ausen , William J. Kopecky , Mark T. Gibson , Olof N. Hansson , Joseph P. Kronzer
CPC classification number: A62B23/025 , A41D13/113 , A41D13/1138 , A41D13/1176 , A61F5/0104 , A61F11/14 , A62B18/025 , A62B18/084 , B29D28/00
Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
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公开(公告)号:US20230364851A1
公开(公告)日:2023-11-16
申请号:US18246064
申请日:2021-10-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Anthony F. Schultz , Ta-Hua Yu , Duane D. Fansler , Karl J.L. Geisler , Bruce R. Broyles , Bhaskar V. Velamakanni , THomas J. Metzler , Jonathan E. Janoski , Richard J. Pokomy , Mark T. Gibson , Ahmed S. Abuelyaman
IPC: B29C51/14
CPC classification number: B29C51/14 , B29K2033/12
Abstract: A method of thermoforming is described. The method comprises providing a multilayer polymer film comprising at least one first thermoplastic polymer layer having a glass transition temperature (Tg) greater than 60° C. and at least one second polymer layer; and thermoforming the multilayer polymer film into a three-dimensional shape. The second polymer layer can be characterized by one or more properties selected from i) a Tg ranging from 20 to 70° C.; ii) a molecular weight between crosslinks of no greater than 20,000 g/mole; and iii) sufficient crosslinking such that the second polymer layer lacks a thermal melt or softening transition at a temperature up to the decomposition temperature of the second polymer layer. Also described are multilayer films and articles, such as orthodontic aligner and retainer trays.
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公开(公告)号:US20220110906A1
公开(公告)日:2022-04-14
申请号:US17418896
申请日:2019-12-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Ta-Hua Yu , Timothy J. Hebrink , Yongshang Lu , Karl J.L. Geisler , Narina Y. Stepanova , Mary E. Johansen , Jay M. Jennen , Bhaskar V. Velamakanni , David P. Siglin , Mark T. Gibson , Troy J. Anderson
Abstract: A dental appliance includes a polymeric shell with an arrangement of one or more cavities configured to receive one or more teeth, and the polymeric shell includes an antimicrobial lipid, such as monolaurin, and optionally an enhancer.
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公开(公告)号:US20210361389A1
公开(公告)日:2021-11-25
申请号:US17052536
申请日:2019-06-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Benjamin C. Mac Murray , Saswata Chakraborty , John M. Riedesel , Thomas P. Klun , Chad M. Amb , Karl J.L. Geisler , Zeba Parkar , Adrian S. Eckert , Mark T. Gibson , Tianyu Wu
Abstract: The present disclosure provides methods of making a hydrated orthodontic article is provided. One method includes a) providing a photopolymerizable composition; b) selectively curing the photopolymerizable composition using actinic radiation to form an article in the shape of an orthodontic article having a plurality of layers of at least one photopolymerized polymer; and c) exposing the article to water by submersion in water, thereby hydrating the article. A sheet of the at least one photopolymerized polymer has a bending modulus when hydrated of 100 MPa or greater and 2200 MPa or less. Another method includes exposing the orthodontic article to water vapor and hermetically sealing the hydrated orthodontic article in a container. Hydrated orthodontic articles are also provided, including an orthodontic article that is prepared according to one of the methods. The present disclosure further provides kits, including an orthodontic article and instructions for exposing the orthodontic article to water to hydrate the orthodontic article, as well as including a hydrated orthodontic article hermetically sealed in a container.
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