CN104271226B - 拒水有机聚硅氧烷材料 - Google Patents

拒水有机聚硅氧烷材料 Download PDF

Info

Publication number
CN104271226B
CN104271226B CN201380022769.7A CN201380022769A CN104271226B CN 104271226 B CN104271226 B CN 104271226B CN 201380022769 A CN201380022769 A CN 201380022769A CN 104271226 B CN104271226 B CN 104271226B
Authority
CN
China
Prior art keywords
water
microcapsules
organopolysiloxane
cementitious
repellent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201380022769.7A
Other languages
English (en)
Chinese (zh)
Other versions
CN104271226A (zh
Inventor
F·坎佩奥尔
塔蒂亚娜·迪米特洛娃
F·加利昂
J-P·勒克姆
L·马第奥克斯
塞布丽娜·塞尔瓦蒂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Corning Corp filed Critical Dow Corning Corp
Publication of CN104271226A publication Critical patent/CN104271226A/zh
Application granted granted Critical
Publication of CN104271226B publication Critical patent/CN104271226B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02Making microcapsules or microballoons
    • B01J13/06Making microcapsules or microballoons by phase separation
    • B01J13/14Polymerisation; cross-linking
    • B01J13/18In situ polymerisation with all reactants being present in the same phase
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/40Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
    • C04B24/42Organo-silicon compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/1051Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/495Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
    • C04B41/4961Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/502Water
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61Coating or impregnation
    • C04B41/62Coating or impregnation with organic materials
    • C04B41/64Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00Purpose of the treatment
    • B27K2240/70Hydrophobation treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/15Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • B27K3/153Without in-situ polymerisation, condensation, or cross-linking reactions
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0045Polymers chosen for their physico-chemical characteristics
    • C04B2103/0052Hydrophobic polymers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0045Polymers chosen for their physico-chemical characteristics
    • C04B2103/0058Core-shell polymers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40Surface-active agents, dispersants
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/53Core-shell polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Wood Science & Technology (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Silicon Polymers (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
CN201380022769.7A 2012-05-02 2013-05-02 拒水有机聚硅氧烷材料 Active CN104271226B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1207662.6 2012-05-02
GB201207662A GB201207662D0 (en) 2012-05-02 2012-05-02 Water repellent organopolysiloxane materials
PCT/EP2013/059081 WO2013164381A1 (en) 2012-05-02 2013-05-02 Water repellent organopolysiloxane materials

Publications (2)

Publication Number Publication Date
CN104271226A CN104271226A (zh) 2015-01-07
CN104271226B true CN104271226B (zh) 2016-12-21

Family

ID=46330668

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380022769.7A Active CN104271226B (zh) 2012-05-02 2013-05-02 拒水有机聚硅氧烷材料

Country Status (9)

Country Link
US (1) US20150087747A1 (enExample)
EP (1) EP2844383B1 (enExample)
JP (1) JP6178408B2 (enExample)
CN (1) CN104271226B (enExample)
GB (1) GB201207662D0 (enExample)
IN (1) IN2014DN09957A (enExample)
RU (1) RU2634780C2 (enExample)
SG (1) SG11201406783PA (enExample)
WO (1) WO2013164381A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110191931A (zh) * 2017-01-30 2019-08-30 陶氏东丽株式会社 用于混凝土结构的涂布剂
JP6926925B2 (ja) * 2017-10-17 2021-08-25 信越化学工業株式会社 シリカ被覆シリコーンエラストマー球状粒子の製造方法及びシリカ被覆シリコーンエラストマー球状粒子
KR102196117B1 (ko) * 2018-11-06 2020-12-30 박명주 건축물의 콘크리트 구조체의 미세기공에 대한 침투율을 조절할 수 있는 콘크리트 보호재의 제조방법 및 이를 이용하여 제조된 건축물의 콘크리트 보호재
CN111410454A (zh) * 2019-01-08 2020-07-14 疏科纳米疏水科技(嘉兴)有限公司 一种制备高效内掺型纳米超疏水混凝土或水泥砂浆的方法
KR20220148912A (ko) * 2020-03-17 2022-11-07 다우 도레이 캄파니 리미티드 시멘트 조성물 및 그의 경화물
WO2021187520A1 (ja) * 2020-03-17 2021-09-23 ダウ・東レ株式会社 プレキャストコンクリート成形体
CN111908860B (zh) * 2020-07-09 2021-12-21 长安大学 寒区裂缝自愈合超高性能水泥基复合材料及制备方法
JP2022148481A (ja) * 2021-03-24 2022-10-06 宇部興産建材株式会社 水硬性組成物、モルタル組成物及びモルタル硬化体

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB701668A (en) * 1950-12-23 1953-12-30 Cowles Chem Co Cementitious composition
SU621366A1 (ru) * 1976-02-04 1978-09-19 Украинская Ордена Трудового Красного Знамени Сельскохозяйственная Академия Способ микрокапсулировани
SE419747C (sv) * 1979-02-15 1984-10-22 Siporex Int Ab Sett vid framstellning av angherdad gasbetong med vattenavvisande egenskaper
SU872518A1 (ru) * 1979-12-12 1981-10-15 Военный Инженерный Краснознаменный Институт Им.А.Ф.Можайского Эмульси дл поверхностной гидрофобизации бетонных покрытий
US5356716A (en) * 1992-09-04 1994-10-18 Patel Pratim R Waterproofing sealer/repellent compositions for concrete, masonry and porous surfaces
JPH0931449A (ja) * 1995-07-24 1997-02-04 Matsushita Electric Ind Co Ltd 表面処理剤及びその使用方法
FR2745816A1 (fr) * 1996-03-06 1997-09-12 Rhone Poulenc Chimie Particules composites comprenant un polymere organique et un oxyde, particules creuses a base d'oxyde, leur preparation et leurs utilisations
GB9611776D0 (en) * 1996-06-06 1996-08-07 Dow Corning Cementitious materials
FR2789679B1 (fr) * 1999-02-12 2001-03-30 Lafarge Platres Element de construction prefabrique a base de platre, presentant une resistance a l'eau
CA2628484A1 (en) * 2005-11-04 2007-05-10 Sika Technology Ag Use and method for reduction of corrosion
FR2897863B1 (fr) * 2006-02-28 2008-07-11 Bpb Plc Procede d'hydrofugation d'un produit a base de gypse forme a partir d'une composition a base de platre
GB0623232D0 (en) * 2006-11-22 2007-01-03 Dow Corning Cementitious materials
GB0818864D0 (en) * 2008-10-15 2008-11-19 Dow Corning Fabric and fibre conditioning additives
WO2011002695A1 (en) * 2009-07-01 2011-01-06 Dow Corning Corporation Microcapsules containing curable siloxanes
US8980377B1 (en) * 2011-04-22 2015-03-17 Eduard A. Stefanescu Clay-based concrete sealer
GB201207664D0 (en) * 2012-05-02 2012-06-13 Dow Corning Water repellent organosilicon

Also Published As

Publication number Publication date
JP6178408B2 (ja) 2017-08-09
SG11201406783PA (en) 2014-11-27
CN104271226A (zh) 2015-01-07
GB201207662D0 (en) 2012-06-13
WO2013164381A1 (en) 2013-11-07
RU2634780C2 (ru) 2017-11-03
EP2844383B1 (en) 2018-04-04
JP2015525246A (ja) 2015-09-03
IN2014DN09957A (enExample) 2015-08-14
EP2844383A1 (en) 2015-03-11
RU2014145021A (ru) 2016-06-27
US20150087747A1 (en) 2015-03-26

Similar Documents

Publication Publication Date Title
CN104284872B (zh) 拒水有机硅材料
CN104271226B (zh) 拒水有机聚硅氧烷材料
JP5306220B2 (ja) シリコーン樹脂の水性エマルジョン
CN1206301C (zh) 有机硅防水组合物
CN103492490B (zh) 有机硅化合物的水分散体
KR101033180B1 (ko) 오르가노실리콘 화합물의 수계 분산액
JP5250024B2 (ja) 撥水性を与える水性シリコーンエマルジョン
JP6087929B2 (ja) コンクリート用撥水剤
JP2008540745A (ja) 架橋したオルガノポリシロキサン分散液の製法
JP2008121012A (ja) オルガノポリシロキサンの水性分散液の製造方法
CN117561294A (zh) 用于有效的重排和固化反应以及具有特定聚合度的硅氧烷基聚合物材料
CN102197008A (zh) 含有含硅化合物的组合物
KR20150041034A (ko) 수성 에폭시 및 오르가노-치환된 분지형 오르가노폴리실록산 에멀젼
CN101353267A (zh) 含有机硅化合物的水性乳液、其制备和在表面处理上的应用
US9080020B2 (en) Water-dispersible silicone resins
JP6490812B2 (ja) 焼成セラミック成形体の疎水性含浸方法
KR102647253B1 (ko) 자기 분산성 혼합물 실리콘 첨가제 조성물, 이의 에멀젼 및 이의 용도
CN116601127A (zh) 用于无机建筑材料的本体疏水化的稀释稳定的水性组合物
WO2021126175A1 (en) Aqueous dispersions of organosilicon compounds
Ren Investigation of impregnants for low-cost buildings

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: michigan

Patentee after: Dow organosilicon company

Address before: michigan

Patentee before: Dow Corning