公开(公告)号：US20200181408A1

公开(公告)日：2020-06-11

申请号：US16078370

申请日：2017-02-21

Applicant: Dow Silicones Corporation

Inventor： Patrick BEYER ,  Yusheng CHEN ,  Shaohui WANG ,  Hans Peter WOLF

IPC: C08L83/04 ,  C08G77/20 ,  C08G77/12 ,  B01J23/42 ,  C08K5/05 ,  C08K3/36 ,  C08K9/04

Abstract: A liquid curable silicone elastomer composition is disclosed. The composition comprises: an organopolysiloxane (A) comprising: an organopolysiloxane (A1) containing at least 2 alkenyl groups bonded to silicon atom per molecule and having a total alkenyl content of from 0.01 to 1.5 mmol/g, and an organopolysiloxane (A2) containing at least 2 alkenyl groups bonded to silicon atom per molecule and having a total alkenyl content of from 5.0 to 15.0 mmol/g; an organopolysiloxane (B) comprising an organopolysiloxane (B1) containing at least 2 silicon-bonded hydrogen atoms per molecule provided by siloxy units of the type (R2HSiO1/2)x where R is independently selected from hydrogen, an aliphatic a hydrocarbyl, an aromatic hydrocarbyl, or an organyl group and x≥2; a platinum based catalyst (C); an inhibitor (D) selected from the group consisting of acetylenic alcohols and their derivatives; and a silica filler (E).

公开(公告)号：US20190270240A1

公开(公告)日：2019-09-05

申请号：US16349099

申请日：2017-11-10

Applicant: Dow Silicones Corporation ,  German RepRap GmbH

Inventor： Hans Peter WOLF ,  Michael BACKER ,  Stephan BAUMANN ,  Florian BAUTZ

IPC: B29C64/106 ,  B29C64/209 ,  B29C64/264 ,  B29C64/295

Abstract: According to various embodiments, a device for formfree printing a three-dimensional object in layers using at least one printing material includes: at least one printing head to output printing material in at least one printing material string; a printing platen to receive the at least one printing material string output by the at least one printing head; a rod-shaped heating device movably arranged over the printing platen; a heat controller configured to control the rod-shaped heating device to emit a heat irradiation directed to the printing platen to heat the at least one printing material string; at least one motor coupled to the rod-shaped heating device to move it over the printing platen; a motor controller configured to control the at least one motor to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.

公开(公告)号：US20190040204A1

公开(公告)日：2019-02-07

申请号：US16078267

申请日：2017-02-21

Applicant: Dow Silicones Corporation

Inventor： Patrick BEYER ,  Ivonne HANKAMMER ,  Hans Peter WOLF

IPC: C08G77/12 ,  C08G77/20 ,  C08G77/08 ,  C08K3/36 ,  C08K5/05 ,  B01J23/42 ,  B29C64/124

CPC classification number: C08G77/12 ,  B01J23/42 ,  B29C64/124 ,  B33Y70/00 ,  C08G77/08 ,  C08G77/20 ,  C08K3/36 ,  C08K5/05 ,  C08K5/56 ,  C08K9/06 ,  C08L83/00 ,  C08L83/04

Abstract: A liquid curable silicone elastomer composition is disclosed. The liquid curable silicone elastomer composition comprises an organopolysiloxane (A) containing at least two silicon-bonded alkenyl groups per molecule, an organopolysiloxane (B) containing at least two silicon-bonded hydrogen atoms per molecule, a platinum based catalyst (C), an inhibitor (D), and a silica filler (E). The organopolysiloxane (B) is a branched polymer, contains M siloxy units, and the at least two silicon-bonded hydrogen atoms are present on the M siloxy units. The inhibitor (D) is selected from the group consisting of acetylenic alcohols and their derivatives. The inhibitor (D) is present in the liquid curable silicone elastomer composition in an amount to provide a molar ratio—of the inhibitor (D) to platinum in the catalyst (C)—of from 150 to 900 (150:1 to 900:1).

公开(公告)号：US20220347915A1

公开(公告)日：2022-11-03

申请号：US17856306

申请日：2022-07-01

Applicant: Dow Silicones Corporation ,  InnovatiQ GmbH + Co KG

Inventor： Hans Peter WOLF ,  Michael Backer ,  Stephan Baumann ,  Florian Bautz

IPC: B29C64/106 ,  B29C64/264 ,  B29C64/295 ,  B29C64/209 ,  C08L83/04

Abstract: A method of formfree printing a three-dimensional object in layers with at least one printing material includes outputting printing material in at least one printing material string in string-shape via at least one printing head; receiving, via a printing platen, at least one printing material string output by the at least one printing head; providing a rod-shaped heating device movably arranged over the printing platen; controlling the rod-shaped heating device, via a heat controller, to emit a heat irradiation directed to the printing platen to heat the at least one printing material string to a reaction temperature to trigger a chemical reaction of the at least one printing material of the at least one printing material string; providing at least one motor coupled to the rod-shaped heating device to move it over the printing platen; and controlling the at least one motor, via a motor controller, to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.

公开(公告)号：US20230147908A1

公开(公告)日：2023-05-11

申请号：US17912829

申请日：2021-03-23

Applicant: DOW SILICONES CORPORATION

Inventor： Robert A. DRAKE ,  Beatriz C. MA ,  Hans Peter WOLF ,  Elizabeth M. SANTOS

IPC: C08G77/20 ,  C08G77/12 ,  C08G77/08 ,  C08K9/06 ,  C08J3/20 ,  H01B3/46

CPC classification number: C08G77/20 ,  C08G77/12 ,  C08G77/08 ,  C08K9/06 ,  C08J3/203 ,  H01B3/46 ,  C08K2201/001 ,  C08J2383/07 ,  C08J2383/05

Abstract: A curable silicone elastomer composition is disclosed. The composition comprises one or more non-fluorinated polydiorganosiloxane polymers and silica filler. The silica filler is at least partially treated with a fluorinated hydrophobing treating agent. Also provided is a method of making the composition and its use in the manufacture of insulators for high voltage applications, especially high voltage direct current (HVDC) applications and accessories such as cable joints, cable terminal applications, and connectors. The fluorinated hydrophobing treating agents are selected from one or more silanol terminated fluorinated siloxane oligomer(s) having from 2 to 20 siloxane units, and/or one or more fluorinated silane diol(s), and/or one or more fluorinated trialkoxy silane(s), and/or one or more fluorinated silazane(s), or a mixture thereof.

公开(公告)号：US20220169856A1

公开(公告)日：2022-06-02

申请号：US17442670

申请日：2019-03-29

Applicant: DOW SILICONES CORPORATION

Inventor： Shaohui WANG ,  Yusheng CHEN ,  Rui WANG ,  Hans Peter WOLF ,  Mark D. FISHER

IPC: C08L83/04 ,  C08G77/08 ,  C08G77/12 ,  C08G77/20 ,  C08G77/24 ,  C08K3/36 ,  C08K9/00 ,  C08K5/14 ,  C08L27/18

Abstract: Provided herein is a self-lubricating silicone elastomer composition and a self-lubricating, elastomeric material made therefrom which has a low coefficient of friction and avoids the need for “self-bleeding”. The self-lubricating silicone elastomer composition comprises: (i) 50 to 75% by weight of one or more polydiorganosiloxane polymer(s) containing from 0.01 to 0.1% by weight of alkenyl and/or alkynyl content; (ii) 3 to 15% by weight of a polydiorganosiloxane polymer having ≥0.5% by weight of alkenyl or alkynyl content; (iii) 10 to 35% by weight of reinforcing filler; and either or both of (iv) a peroxide catalyst; or (v) a hydrosilylation catalyst package.

公开(公告)号：US20190055420A1

公开(公告)日：2019-02-21

申请号：US16078305

申请日：2017-02-21

Applicant: Dow Silicones Corporation

Inventor： Patrick BEYER ,  Chad DINNINGER ,  Roger GIBAS ,  John KENNAN ,  Hans Peter WOLF

IPC: C09D11/102 ,  C09D11/037 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/106

Abstract: A selective adhesion liquid silicone rubber composition is disclosed. The liquid silicone rubber composition comprises an organopolysiloxane (A) containing at least two silicon-bonded alkenyl groups per molecule, an organopolysiloxane (B) containing at least two silicon-bonded hydrogen atoms per molecule, a platinum based catalyst (C), an inhibitor (D), a silica filler (E), and an adhesion promoter (F). The organopolysiloxane (B) comprises organopolysiloxane (B1) and organopolysiloxane (B2), wherein organopolysiloxane (B1) contains siloxy units of the type (R2HSiO1/2)x where x≥2. Organopolysiloxane (B2) contains siloxy units of the type (RHSiO2/2)z where z≥2. Each R is independently selected from a hydrogen atom, or an aliphatic hydrocarbyl, aromatic hydrocarbyl, or organyl group. The inhibitor (D) is selected from the group consisting of acetylenic alcohols and their derivatives.