NL148638B - Werkwijze ter bereiding van een middel om het kleven van rubbervoorwerpen aan vulcaniseervormen of aan uit natuurlijke rubber bestaande opblaasbare vulcanisatiekernen te voorkomen. - Google Patents

Werkwijze ter bereiding van een middel om het kleven van rubbervoorwerpen aan vulcaniseervormen of aan uit natuurlijke rubber bestaande opblaasbare vulcanisatiekernen te voorkomen.

Info

Publication number
NL148638B
NL148638B NL7207401A NL7207401A NL148638B NL 148638 B NL148638 B NL 148638B NL 7207401 A NL7207401 A NL 7207401A NL 7207401 A NL7207401 A NL 7207401A NL 148638 B NL148638 B NL 148638B
Authority
NL
Netherlands
Prior art keywords
vulcanising
moldings
adhesive
preparing
objects
Prior art date
Application number
NL7207401A
Other languages
English (en)
Other versions
NL7207401A (nl
Inventor
Jr J Cekada
Original Assignee
Dow Corning
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 filed Critical Dow Corning
Publication of NL7207401A publication Critical patent/NL7207401A/xx
Publication of NL148638B publication Critical patent/NL148638B/nl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60—Releasing, lubricating or separating agents
    • B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
    • B29C33/64—Silicone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions 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
    • C08L83/04—Polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/081—Inorganic acids or salts thereof containing halogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/08—Aldehydes; Ketones
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/30—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Detergent Compositions (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Lubricants (AREA)
NL7207401A 1971-06-01 1972-06-01 Werkwijze ter bereiding van een middel om het kleven van rubbervoorwerpen aan vulcaniseervormen of aan uit natuurlijke rubber bestaande opblaasbare vulcanisatiekernen te voorkomen. NL148638B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14889971A 1971-06-01 1971-06-01
US21564272A 1972-01-05 1972-01-05

Publications (2)

Publication Number Publication Date
NL7207401A NL7207401A (nl) 1972-12-05
NL148638B true NL148638B (nl) 1976-02-16

Family

ID=26846275

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7207401A NL148638B (nl) 1971-06-01 1972-06-01 Werkwijze ter bereiding van een middel om het kleven van rubbervoorwerpen aan vulcaniseervormen of aan uit natuurlijke rubber bestaande opblaasbare vulcanisatiekernen te voorkomen.

Country Status (10)

Country Link
JP (1) JPS5146125B1 (nl)
AT (1) AT332114B (nl)
BE (1) BE784204A (nl)
CA (1) CA962390A (nl)
DE (1) DE2225698C3 (nl)
FR (1) FR2140122B1 (nl)
GB (1) GB1371956A (nl)
IT (1) IT953511B (nl)
NL (1) NL148638B (nl)
SE (1) SE376254B (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883628A (en) * 1973-05-14 1975-05-13 Stauffer Chemical Co Silicone release agent
US3872038A (en) * 1973-12-03 1975-03-18 Stauffer Chemical Co Aqueous based release composition
GB1532898A (en) * 1974-08-12 1978-11-22 Very Important Prod Inc Preservative composition for preserving and renewing surfaces
JPS5141239A (ja) * 1974-10-04 1976-04-07 Tajimajunzo Seisakusho Kk Kaidoshikitobiranokaiheisochi
DE2712298C3 (de) * 1977-03-21 1980-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Seitenkanalverdichter
DE2928810C2 (de) * 1978-10-16 1984-08-23 Th. Goldschmidt Ag, 4300 Essen Gleit- und Trennmittel für Gummiformkörper
DE2925662C2 (de) * 1979-06-26 1982-09-09 Th. Goldschmidt Ag, 4300 Essen Gleit- und Formtrennmittel für die Reifenherstellung
US4359340A (en) 1980-11-20 1982-11-16 The Goodyear Tire & Rubber Company Tire curing bladder lubricant
ZA817372B (en) * 1980-11-20 1982-10-27 Goodyear Tire & Rubber Treated tire curing bladder composition therefor and method for curing tires
DE3152327C2 (de) * 1980-11-20 1995-03-23 Goodyear Tire & Rubber Verfahren zur Herstellung eines pneumatischen oder halbpneumatischen Reifens
ZA817549B (en) * 1980-12-03 1982-10-27 Goodyear Tire & Rubber Treated tire curing bladder treatment composition therefor and method of curing tires
US4561987A (en) * 1983-10-06 1985-12-31 Takemoto Yushi Kabushiki Kaisha Lubricating agents for processing synthetic yarns and method of processing synthetic yarns therewith
US5047159A (en) * 1989-08-24 1991-09-10 Henkel Corporation Lubricant compositions having improved anti-deposition properties comprising a polyalkylene oxide-modified silicone oil

Also Published As

Publication number Publication date
NL7207401A (nl) 1972-12-05
AT332114B (de) 1976-09-10
BE784204A (fr) 1972-11-30
IT953511B (it) 1973-08-10
ATA469272A (de) 1975-12-15
GB1371956A (en) 1974-10-30
DE2225698C3 (de) 1974-09-19
DE2225698A1 (de) 1972-12-14
SE376254B (nl) 1975-05-12
JPS5146125B1 (nl) 1976-12-07
FR2140122A1 (nl) 1973-01-12
CA962390A (en) 1975-02-04
FR2140122B1 (nl) 1977-12-23
DE2225698B2 (de) 1974-02-14

Similar Documents

Publication Publication Date Title
AT304459B (de) Verfahren zur Herstellung eines Trägerkatalysators
AT350889B (de) Formkoerper, wie folien, faeden insbesondere nicht zum verzehr bestimmte schlauchfolien zur verpackung von wurstwaren, formmasse zur herstellung der formkoerper und verfahren zur herstellung der formmasse
CH518165A (de) Kontinuierliches Verfahren zur Herstellung von faserverstärktem thermoplastischem Material
CH540762A (de) Verfahren zur Herstellung eines faserverstärkten Thermoplaststrangs
AT312942B (de) Verfahren zur Herstellung von Schaumstoffen
AT318108B (de) Verfahren zur Herstellung von modifizierten Naturharzprodukten
NL148638B (nl) Werkwijze ter bereiding van een middel om het kleven van rubbervoorwerpen aan vulcaniseervormen of aan uit natuurlijke rubber bestaande opblaasbare vulcanisatiekernen te voorkomen.
CH521396A (de) Verfahren zur Herstellung von Äthylenharzschaum
DD68502A (de) Verfahren zur kontinuierlichen Herstellung organischer Isozyanate
AT290857B (de) Verfahren zur Herstellung eines Schichtstoffes
AT307726B (de) Verfahren zur Herstellung modifizierter Äthylenpolymerisate
AT311680B (de) Verfahren zur Herstellung von Polyurethanschaumstoffen
DE1934232B2 (de) Verfahren zum herstellen thermoplastischer schaumstoffschichten
AT317558B (de) Verfahren zur Herstellung von Schaumstoff-Formkörpern
CH544792A (de) Verfahren zur Herstellung von Schaummaterialien
AR217807A1 (es) Procedimiento para preparar articulos de cuerpos compuestos de polimeros poliuretanicos/vinilicos
AT312569B (de) Verfahren zur Methanherstellung
CH518329A (de) Verfahren zur Herstellung neuartiger thermoplastischer modifizierter Polyaryläthersulfone
AT318903B (de) Verfahren zur Herstellung expandierbarer Styrolpolymerisate
AT314842B (de) Verfahren zur Herstellung von kombinierten weichelastischen Schaumstoffen
CH539589A (de) Verfahren zur Herstellung eines Bodenbelags auf der Basis eines Anhydritbinders
ATA1036573A (de) Verfahren zur herstellung lederharter formlinge
CH522784A (de) Verfahren zur Herstellung eines flächenhaften, flexiblen, atmungsaktiven Mehrschichtstoffs
AT319584B (de) Verfahren zur Herstellung von vulkanisierten Gummimischungen
BE817985A (nl) Werkwijze ter vervaardiging van plaatvormig aan een zijde van een bedrukking voorzien kunststofmateriaal

Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: DOW CORNING