公开(公告)号：WO2021247210A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/031889

申请日：2021-05-12

Applicant: DOW SILICONES CORPORATION

Inventor： WEI, Yanhu ,  NIU, Zhenbin ,  FU, Peng-Fei

IPC: C08G77/14 ,  C08G77/38 ,  C08K3/20 ,  C08K3/22 ,  C08L83/06 ,  C08K5/17 ,  C08K5/50 ,  C08K5/55 ,  C09D183/06 ,  C09J5/06 ,  C09J183/06 ,  C09J2481/005 ,  C09J7/401

Abstract: An epoxy-curable silicone release coating composition and methods for its preparation and use are provided. The composition contains an inhibited Lewis acid catalyst. Releasing the Lewis acid catalyst from the inhibitor allows the Lewis acid to catalyze cure of the epoxy-groups. The composition can be coated on various substrates and cured to form a release liner.

公开(公告)号：WO2023064023A1

公开(公告)日：2023-04-20

申请号：PCT/US2022/039032

申请日：2022-08-01

Applicant: DOW SILICONES CORPORATION

Inventor： FU, Peng-Fei ,  JANG, Wonbum ,  ELL, John ,  CHUNG, Myunhwa

IPC: G03F7/00 ,  G03F7/075

Abstract: A composition contains a photocurable resin that has a weight- average molecular weight of 3000-50000 Daltons, a glass transition temperature of at least 100 degrees Celsius and contains the following siloxane units: 50-80 mole-percent (HSiC>3/2), 10 to 30 mole-percent (R*SiC>3/2), 10 to 40 mole-percent (Ar*SiC>3/2), and 20.0 mole-percent or less of Si-OZ content, where mole-percent values are relative to moles of silicon atoms in the photocurable resin, R* is a photocurable group, Ar* in each occurrence is selected from a group of halogen-substituted aryl groups and polyaryl groups; Z in each occurrence is selected from hydrogen and alkyl groups, and subscripts x and y are independently in each occurrence either one or 2.

公开(公告)号：WO2021150364A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/012136

申请日：2021-01-05

Applicant: DOW SILICONES CORPORATION

Inventor： FU, Peng-Fei ,  WEI, Yanhu

IPC: C08G77/14 ,  C08G77/16 ,  C08G77/18 ,  C08K5/00 ,  C08K5/56 ,  C08K5/57 ,  C08L83/04 ,  C09D183/04 ,  C09D183/06 ,  C09J183/04 ,  C09J183/06 ,  C08K5/0025

Abstract: A composition containing: (a) a polysiloxane resin, wherein the polysiloxane resin contains the following siloxane units: [R3SiO1/2], [(OZ)qSiO(4-q)/2] and at least one of [(OZ)t REPSiO(3-t)/2] and [(OZ)d RREPSiO(2-d)/2]; where: each R is independently in each occurrence selected from hydrocarbyls, REP is an epoxy functional hydrocarbyl group, subscript q is in each occurrence a number selected from a range of 0-3, subscript t is in each occurrence a number selected from a range of 0-2, and subscript d is in each occurrence a number selected from a range of 0-1 provided that the average concentration of OZ groups is at least 15 mole-percent relative to moles of silicon atoms in the polysiloxane resin; (b) a photo acid generator; (c) a moisture cure catalyst; and (d) optionally, an epoxy functional diluent.

公开(公告)号：WO2019209395A1

公开(公告)日：2019-10-31

申请号：PCT/US2019/016454

申请日：2019-02-04

Applicant: DOW SILICONES CORPORATION

Inventor： LIU, Lizhi ,  FU, Peng-Fei

IPC: G03F7/075 ,  G03F7/004

Abstract: A method for producing a patterned silicone layer; said method comprising steps of: (a) depositing on a substrate a composition comprising: (i) a polysiloxane comprising alkenyl groups, (ii) a silane crosslinker comprising silicon-hydrogen bonds, (iii) a hydrosilylation catalyst, and (iv) a photolatent amine generator, to form an uncured resin; (b) exposing the uncured resin to ultraviolet light or electron beam irradiation through a mask to produce a patterned resin; (c) heating the patterned resin; and (e) removing at least a part of the uncured portion of the patterned resin to produce a final patterned silicone layer.

公开(公告)号：WO2022132906A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/063527

申请日：2021-12-15

Applicant: DOW SILICONES CORPORATION

Inventor： FU, Peng-Fei

IPC: C08L83/06 ,  C09D183/06

Abstract: A method of preparing a film comprises applying a composition on a substrate to give an uncured layer. The method further comprises irradiating the uncured layer to give the film. The composition comprises: (a) a polysiloxane resin, (b) a photoinitiator, and optionally (c) a functional diluent. The (a) polysiloxane resin includes acryloxy functionality and average concentration of OZ groups of at least 12 mole-percent relative to moles of silicon atoms in the (a) polysiloxane resin, where Z is independently H or an alkyl group.