FR2128655A1 - Fluorocarbon polymer coating dispersions - contg lithium hydroxide and pyrogenic silica for non-stick cooking utensils - Google Patents

Fluorocarbon polymer coating dispersions - contg lithium hydroxide and pyrogenic silica for non-stick cooking utensils

Info

Publication number
FR2128655A1
FR2128655A1 FR7207679A FR7207679A FR2128655A1 FR 2128655 A1 FR2128655 A1 FR 2128655A1 FR 7207679 A FR7207679 A FR 7207679A FR 7207679 A FR7207679 A FR 7207679A FR 2128655 A1 FR2128655 A1 FR 2128655A1
Authority
FR
France
Prior art keywords
contg
dispersions
lithium hydroxide
cooking utensils
lioh
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.)
Withdrawn
Application number
FR7207679A
Other languages
French (fr)
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of FR2128655A1 publication Critical patent/FR2128655A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Cookers (AREA)
  • Silicon Compounds (AREA)

Abstract

The dispersions contain lithium hydroxide, fine-particle pyrogenic silica produced at over 400 degrees C, a fluorocarbon polymer, water, organic solvent and wetting agent. The silica particles are of 0.02-20 (0.05-15) mu size and pref. only the surface is reacted with LiOH, the molar ratio of LiOH to SiO2 being 1:0.5-30 (pref. 1:1-4). The fluorocarbon is pref. PTFE in an amt. of 45-90 (60-75) wt. % of the total of flurocarbon + SiO2 + LiOH. The dispersions are suitable for coating metals esp., for non-stick coatings a cooking utensils, either as single coatings or as primers for subsequent cover coats. Better adhesion is obtd. than by use of lithium polysilicates and physiological objections to dispersions contg. chromic acid are avoided.
FR7207679A 1971-03-06 1972-03-06 Fluorocarbon polymer coating dispersions - contg lithium hydroxide and pyrogenic silica for non-stick cooking utensils Withdrawn FR2128655A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712110768 DE2110768B2 (en) 1971-03-06 1971-03-06 Primer dispersion for the production of coatings from fluorocarbon polymers

Publications (1)

Publication Number Publication Date
FR2128655A1 true FR2128655A1 (en) 1972-10-20

Family

ID=5800732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7207679A Withdrawn FR2128655A1 (en) 1971-03-06 1972-03-06 Fluorocarbon polymer coating dispersions - contg lithium hydroxide and pyrogenic silica for non-stick cooking utensils

Country Status (5)

Country Link
AT (1) AT313442B (en)
BE (1) BE780269A (en)
DE (1) DE2110768B2 (en)
FR (1) FR2128655A1 (en)
IT (1) IT953471B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906787A1 (en) * 1979-02-22 1980-09-04 Hoechst Ag COATING AGENT BASED ON A COPOLYMER FROM TETRAFLUORETHYLENE AND A PERFLUOR (ALKYLVINYL) ETHER
DE3734781A1 (en) * 1987-10-14 1989-04-27 Knedla Richard Process for producing a layer with sharpening effect on cutting edges of shear blades
DE102005037338A1 (en) * 2005-08-04 2007-02-08 Starnberger Beschichtungen Gmbh Producing a nonstick coating on a substrate comprises applying a primer coat having inclusions, applying a top coat and heat-treating the top coat
CN114539857B (en) * 2022-03-29 2023-03-07 武汉苏泊尔炊具有限公司 Modified base oil, modified middle oil, composite coating and cooker

Also Published As

Publication number Publication date
BE780269A (en) 1972-09-06
DE2110768B2 (en) 1974-01-24
DE2110768A1 (en) 1972-09-28
IT953471B (en) 1973-08-10
AT313442B (en) 1974-02-25

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Legal Events

Date Code Title Description
RE Withdrawal of published application