公开(公告)号：US11629273B2

公开(公告)日：2023-04-18

申请号：US16487491

申请日：2018-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Encai Hao ,  Jianhui Xia ,  Lili Qie ,  David T. Amos ,  Charlie Chia-Tie Ho ,  Lauren A. Polski ,  Richard B. Ross

IPC: C09J7/38 ,  C09J175/08 ,  C08G18/66 ,  C08G18/42 ,  C08G18/24 ,  C08G18/32 ,  C08G18/34 ,  C08G18/40 ,  C08G18/48 ,  C08G18/67 ,  C08G18/73 ,  C09J175/14 ,  C09J175/06

Abstract: There is provided a pressure sensitive adhesive composition comprising a polyurethane polymer that comprises the reaction product of a polyisocyanate component and a polyol component. The polyol component has a hydrophilic-lipophilic balance (HLB) less than 10. The polyurethane further comprises 0.5 to 10 wt.-% of hydrophilic polymerized units having an HLB greater than 12, such as a reaction product of a polyethylene glycol polymer. In another embodiment, the polyurethane further comprises pendent ethylenically unsaturated groups. Also described are articles such as laminating tapes and protective films as well as methods of bonding substrates with the pressure sensitive adhesive and laminating tape.

公开(公告)号：US20200056072A1

公开(公告)日：2020-02-20

申请号：US16487491

申请日：2018-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Encai Hao ,  Jianhui Xia ,  Lili Qie ,  David T. Amos ,  Charlie Chia-Tie Ho ,  Lauren A. Polski ,  Richard B. Ross

IPC: C09J7/38 ,  C08G18/24 ,  C08G18/73 ,  C08G18/42 ,  C08G18/48 ,  C08G18/40 ,  C08G18/34 ,  C08G18/66 ,  C08G18/67 ,  C08G18/32

Abstract: There is provided a pressure sensitive adhesive composition comprising a polyurethane polymer that comprises the reaction product of a polyisocyanate component and a polyol component. The polyol component has a hydrophilic-lipophilic balance (HLB) less than 10. The polyurethane further comprises 0.5 to 10 wt.-% of hydrophilic polymerized units having an HLB greater than 12, such as a reaction product of a polyethylene glycol polymer. In another embodiment, the polyurethane further comprises pendent ethylenically unsaturated groups. Also described are articles such as laminating tapes and protective films as well as methods of bonding substrates with the pressure sensitive adhesive and laminating tape.

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.

公开(公告)号：US20240301239A1

公开(公告)日：2024-09-12

申请号：US18289265

申请日：2022-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Charlie Chia-Tie Ho ,  Timothy J. Brookshaw ,  Jay M. Jennen ,  Todd G. Pett ,  Tong Wei ,  David P. Siglin

IPC: C09D175/14 ,  C08G18/62

CPC classification number: C09D175/14 ,  C08G18/6225 ,  C08G2150/00

Abstract: Provided is a surfacing film that includes a plurality of layers. The layers include a first clear coat layer made from a crosslinked polyurethane that is a reaction product of a reactive mixture including an isocyanate and a polyol containing a styrene repeat unit and a hydroxyl-containing (meth)acrylate repeat unit. The surfacing film further includes a bulk layer made from a thermoplastic polyurethane and an adhesive layer. Optionally, the surfacing film includes second clear coat layer, which can be made from a polyurethane that is at least partially crosslinked. The resulting surfacing film can display high stain resistance, high peel strength, superior scratch resistance and self-healing properties.

公开(公告)号：USRE46761E1

公开(公告)日：2018-03-27

申请号：US14689290

申请日：2015-04-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Charlie Chia-Tie Ho ,  Clarence Fullbright, Jr.

IPC: B32B7/12 ,  C08G18/42 ,  C08G18/00 ,  C09D175/06 ,  B05C17/005 ,  B65D83/00 ,  B05C17/015

CPC classification number: B32B27/40 ,  B32B7/12 ,  C08G18/32 ,  C08G18/4202 ,  C09D175/06 ,  Y10T428/31551

Abstract: The present invention provides a flexible two component polyurethane and method for producing the polyurethane. The cured polyurethane is flexible, durable and weather resistant. The polyurethane is suitable for use as a protective layer on various substrates. The flexible polyurethane is the reaction product of solvent-free reaction components. The first component includes one or more polyols, optionally, one or more diols, and a catalyst. The second component includes a primary aliphatic isocyante crosslinker.