公开(公告)号：US10961392B2

公开(公告)日：2021-03-30

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：US12091546B2

公开(公告)日：2024-09-17

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

CPC classification number: C08L83/04 ,  C09J183/04 ,  C08K2201/006

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：US20220002563A1

公开(公告)日：2022-01-06

申请号：US17296625

申请日：2019-11-28

Applicant: Advanced Insulation Limited ,  Dow Silicones Corporation

Inventor： Simon Harry Shepherd ,  Laura Louise Jordan ,  Anil Naik ,  Tatiana Dimitrova ,  Anne-Marie Van Stiphoudt

IPC: C09D5/18 ,  C09D7/61 ,  C09D7/40 ,  C09D183/06

Abstract: A mixture curable in the presence of a suitable metallic catalyst to provide an intumescent coating material. The mixture comprises: a siloxane polymer; a cross-linker for cross-linking the siloxane polymer; filler, wherein the filler comprises char reinforcing filler; and an intumescent ingredient. The intumescent ingredient comprises a phosphorus containing compound or a composition comprising a phosphorus containing compound. The mixture comprises 5 to 20% by weight of the phosphorus containing compound or composition comprising a phosphorus containing compound. The intumescent ingredient comprises 10 to 40% by weight expandable graphite.