公开(公告)号：US20230407092A1

公开(公告)日：2023-12-21

申请号：US18036045

申请日：2021-11-16

Applicant: DOW SILICONES CORPORATION

Inventor： Frederic GUBBELS ,  Tatiana DIMITROVA

IPC: C08L83/04 ,  C08G77/08 ,  C08G77/16 ,  C08G77/18 ,  C08G77/58 ,  C08K5/5419

CPC classification number: C08L83/04 ,  C08G77/08 ,  C08G77/16 ,  C08G77/18 ,  C08G77/58 ,  C08K5/5419 ,  C08L2201/52

Abstract: Aqueous silicone emulsion compositions which cure utilising titanium-based reaction products as catalysts, and a process to prepare the same and their uses, are provided. The composition comprises (a) a titanium-based reaction product; (b) one or more silicon containing compounds having at least 2 or at least 3 hydroxyl and/or hydrolysable groups per molecule; (c) one or more surfactants; and (d) water. The titanium-based reaction product (a) is obtained or obtainable from a process comprising the steps of: (i) mixing a first ingredient, an alkoxy titanium compound having from 2 to 4 alkoxy groups with a second ingredient, a linear or branched polydiorganosiloxane having at least two terminal silanol groups per molecule and a viscosity of from 30 to 300,000 mPa·s at 25° C.; (ii) enabling the first and second ingredients to react together by stirring under vacuum to form a reaction product; and (iii) collecting the reaction product of step (ii).

公开(公告)号：US20210147682A1

公开(公告)日：2021-05-20

申请号：US17043190

申请日：2019-03-15

Applicant: DOW SILICONES CORPORATION

Inventor： Tatiana DIMITROVA ,  Anne-Marie VAN STIPHOUDT

IPC: C08L83/04 ,  C09J183/04

Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition is a silicone elastomer composition comprising: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising (i) a maximum of 25% by weight of the composition of calcium carbonate and/or silica, and (ii) an amount of one or more fibrous fillers selected from mineral fibers, bulk fibers, refractory fibers, basalt fibers, or mixtures thereof; (d) a condensation curing catalyst; and optionally (e) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ≥2×1015 Ω·cm.

公开(公告)号：US20200339915A1

公开(公告)日：2020-10-29

申请号：US16955845

申请日：2018-12-17

Applicant: DOW SILICONES CORPORATION

Inventor： Tatiana DIMITROVA ,  Jonathan THILL ,  Severine CAUVIN

IPC: C11D3/37 ,  C11D3/00 ,  C11D17/00 ,  C11D11/00 ,  D06M15/643

Abstract: The present disclosure relates to fabric-care compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to fabric-care compositions comprising at least one uncured silicone based polymer; and at least one fabric-care ingredient, optionally in an acceptable medium. Also disclosed are processes to prepare the fabric-care compositions and uses of the fabric-care compositions.

公开(公告)号：US20190144725A1

公开(公告)日：2019-05-16

申请号：US16098516

申请日：2017-05-05

Applicant: Dow Silicones Corporation

Inventor： Gregory CHAMBARD ,  Tommy DETEMMERMAN ,  Tatiana DIMITROVA ,  Frederic GUBBELS

IPC: C09J183/04 ,  C09J11/06 ,  E06B3/673 ,  E06B3/663

CPC classification number: C09J183/04 ,  C08G77/16 ,  C08G77/18 ,  C08K5/05 ,  C08K5/5419 ,  C08L83/00 ,  C08L83/04 ,  C09J11/06 ,  E06B3/66333 ,  E06B3/6733 ,  E06B2003/66338

Abstract: A method of adhering a substantially cured or fully cured silicone based material to a substrate surface is provided. The silicone based material is obtained by curing a condensation curable composition. The condensation curable composition comprises: (I) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (II) a cross-linker selected from the group of silanes having at least two hydrolysable groups per molecule; and/or silyl functional molecules having at least two silyl groups, each silyl group containing at least one hydrolysable group; and (III) a condensation catalyst selected from the group of titanates and zirconates. The method includes applying a reactive interlayer to the substrate surface and applying pressure to sandwich the reactive interlayer between a surface of the silicone based material and the substrate surface, thereby causing chemical bonding of the silicone based material to the substrate.

公开(公告)号：US20240043689A1

公开(公告)日：2024-02-08

申请号：US18267813

申请日：2021-12-20

Applicant: DOW SILICONES CORPORATION

Inventor： Tatiana DIMITROVA ,  Anne-Marie VAN STIPHOUDT

IPC: C08L83/06 ,  C08K3/36 ,  C09K3/10 ,  C08G77/18 ,  C09J183/06 ,  C08K9/06

CPC classification number: C08L83/06 ,  C08K3/36 ,  C09K3/1018 ,  C08G77/18 ,  C09J183/06 ,  C08K9/06 ,  C08K2201/006

Abstract: A one-part room temperature vulcanisable (RTV) silicone composition is provided. The one-part RTV silicone composition comprises a polyorganosiloxane polymer comprising at least two hydrolysable groups per molecule, anhydrous reinforcing filler(s), cross-linker(s), a tin (iv) based condensation catalyst and one or more low molecular weight linear or branched nitrogen containing compounds. The compounds are selected from amidines, guanidines and other alkyl amines and alkyl polyamines. The composition is designed to be storable for at least 6 months at a temperature (T° C.) in a range of between 0° C. and 25° C. inclusive.

公开(公告)号：US20210108114A1

公开(公告)日：2021-04-15

申请号：US17132475

申请日：2020-12-23

Applicant: DOW SILICONES CORPORATION

Inventor： Tommy DETEMMERMAN ,  Tatiana DIMITROVA ,  Frederic GUBBELS

IPC: C09J183/04 ,  C08G77/08 ,  C08G77/20 ,  C08G77/24 ,  C08G77/26 ,  C08L71/08 ,  C08K5/42 ,  C08K5/5419 ,  C08G77/16

Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.

公开(公告)号：US20190338077A1

公开(公告)日：2019-11-07

申请号：US16322632

申请日：2017-08-03

Applicant: Dow Silicones Corporation

Inventor： Gregory CHAMBARD ,  Tommy DETEMMERMAN ,  Tatiana DIMITROVA ,  Frederic GUBBELS

IPC: C08G77/38 ,  C08K3/36

Abstract: The present disclosure generally relates to 2 part silicone compositions which cure via a condensation cure chemistry using titanium and/or zirconium based catalysts to generate elastomeric or gel end products and the applications for same.

公开(公告)号：US20210054202A1

公开(公告)日：2021-02-25

申请号：US17043256

申请日：2019-03-15

Applicant: DOW SILICONES CORPORATION

Inventor： Tatiana DIMITROVA ,  Anne-Marie VAN STIPHOUDT ,  Chelsea QUINN

IPC: C08L83/04

Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition comprises: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising calcium carbonate; (d) a filler treating agent comprising one or more carboxylated liquid organic polymers; (e) a condensation curing catalyst; and optionally (f) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ≥2×1015 Ω·cm.

公开(公告)号：US20200337981A1

公开(公告)日：2020-10-29

申请号：US16955847

申请日：2018-12-17

Applicant: DOW SILICONES CORPORATION

Inventor： Tatiana DIMITROVA ,  Charlene FOURNIER

IPC: A61K8/891 ,  A61K8/06 ,  A61Q5/02 ,  A61Q5/12

Abstract: The present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. The present disclosure also relates to preparation methods and uses of the cosmetic compositions.

公开(公告)号：US20200214967A1

公开(公告)日：2020-07-09

申请号：US16322923

申请日：2017-08-03

Applicant: Dow Silicones Corporation

Inventor： Sylvie BOUZELOC ,  Tatiana DIMITROVA ,  Charlene FOURNIER ,  Frederic GUBBELS

IPC: A61K8/89 ,  A61K8/06 ,  A61Q5/12 ,  A61Q5/02 ,  A61K8/04

Abstract: Cosmetic compositions comprising silicone based materials cured via a condensation cure chemistry are disclosed. In particular, the present disclosure relates to cosmetic compositions comprising a silicone based gel cured via a condensation cure chemistry; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.