US3075923A - Finish remover compositions - Google Patents

Finish remover compositions Download PDF

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Publication number
US3075923A
US3075923A US779548A US77954858A US3075923A US 3075923 A US3075923 A US 3075923A US 779548 A US779548 A US 779548A US 77954858 A US77954858 A US 77954858A US 3075923 A US3075923 A US 3075923A
Authority
US
United States
Prior art keywords
sulfonic acid
finish
methylene chloride
remover
benzene sulfonic
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.)
Expired - Lifetime
Application number
US779548A
Other languages
English (en)
Inventor
Neil W Berst
Wayne M Gauntt
Eugene F Maisel
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.)
Diversey Wyandotte Corp
Diversey Corp USA
Original Assignee
Diversey Corp USA
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
Priority to LU37891D priority Critical patent/LU37891A1/xx
Application filed by Diversey Corp USA filed Critical Diversey Corp USA
Priority to US779548A priority patent/US3075923A/en
Priority to GB22890/59A priority patent/GB860374A/en
Priority to FR807096A priority patent/FR1237488A/fr
Priority to CH8014159A priority patent/CH392739A/fr
Priority to BE584265A priority patent/BE584265A/fr
Application granted granted Critical
Publication of US3075923A publication Critical patent/US3075923A/en
Anticipated expiration legal-status Critical
Assigned to DIVERSEY WYANDOTTE CORPORATION, A CORP. OF DE. reassignment DIVERSEY WYANDOTTE CORPORATION, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DIVERSEY CORPORATION THE
Expired - Lifetime legal-status Critical Current

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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
    • C09D9/00—Chemical paint or ink removers
    • C09D9/005—Chemical paint or ink removers containing organic solvents

Definitions

  • This invention relates to improved compositions for removing coatings from surfaces. More specifically, this invention relates to compositions for removing finish coatings such as paints, enamels, varnishes, lacquers and resins from coated surfaces. These compositions may be used for stripping such coatings from metal, wood, ceramic material, and the like.
  • finish remover formulations hitherto known have in general been satisfactory for use in removing surface coatings of the common varieties of paint, varnish, and enamel
  • recent advances in the organic coatring industries have led to the development of new surface coatings having greater adhesion and greater resistance to softening and removal by the solvents commonly used for this purpose.
  • chlorinated hydrocarbon as the principal solvent for softening and loosening the finish in order to permit its removal.
  • chlorinated hydrocarbons a particularly preferred example of which is methylene chloride, do not have the dangerous flammability of the older solvents such as acetone, benzene, and petroleum naphtha and are therefore particularly desirable for this use.
  • the benzene sulfonic acid may contain no alkyl groups (as in the case of benzene sulfonic acid per se), one alkyl group (as in ethylbenzene sulfonic acid, hexylbenzene sulfonic acid, dodecylbenzene sulfonic acid, octadecyl benzene sulfonic acid, etc), or two or more alkyl groups, which may be the same or different (as in Xylene sulfonic acid, methyl isopropyl benzene sulfonic acid, d-iethyl benzene sulfonic acid, methyl dodecylbenzene sulfonic acid, etc.).
  • the alkyl groups may be straight or branched chain and, in the case where two or more are attached to a single benzene ring, may be in any position (i.e., ortho-, meta-, or para-) with respect to each other.
  • the total number of carbon atoms in the alkyl groups is likewise not critical and may range from 0 to about 17 or more. This is not to say, however, that all such alkyl benzene sulfonic acids are equally effective in activating the stripping ability of methylene chloride. It has been determined that themost effective are those in which the total number of side chain carbon atoms per molecule ranges from about 1 to about 12, and these acids accordingly constitute a preferred group.
  • the sulfonic acids used as activators for methylene chloride in accordance with this invention are benzene the stripping ability of the methylene chloride to such an sulfonic acid and alkyl benzene sulfonic acids.
  • the exact nature and size of the substituent alkyl groups is not important for purposes of the invention.
  • Cosolvents are used as aids in producing a homogeneous solution or stable suspension of the other ingredients of the finish remover. In some cases they may also assist in removing certain types of organic finishes from metal.
  • cosolvents which can be used in conjunction with methylene chloride and sulfonic acid activators of this invention are aliphatic alcohols such as methanol, ethanol, hexanol, decanol and the like; glycols, such as ethylene glycol, diethylene glycol, triethylene glycol and the like; aliphatic ether alcohols, such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether and the like; esters, such as ethyl acetate; and well-known solvents such as acetone, dioxane, and petroleum ether.
  • suitable cosolvents will be apparent to those skilled in the art.
  • Finish removers which are applied by brushing or spraying, especially to vertical, inclined or underhanging surfaces, should contain a thickening agent in order to function with maximum eflectiveness.
  • the finish remover In the absence of a thickener the finish remover is very fluid and drains quiclo ly from the surface to be treated, so that there is insulfir cient solvent present per unit of area to penetrate the finish and loosen the bond between the same and the surface.
  • the thickener prevents too-rapid draining and permits the remover to remain in contact with the surface for a sufficient time and in sutficient quantity to accomplish the desired loosening of the finish.
  • any material which is compatible with the other components of the finish remover formulation and which accomplishes the desired thickening can be used.
  • typical thickeners include methyl cellulose, ethyl cellulose, bentonite, casein, and the like.
  • thickeners can be used in amounts up to about 25% by weight to form a paste type of finish remover for special applications, they are commonly used in amounts of about 0.52% by weight of the total composition to form compositions suitable for general use.
  • Another usual component of modern finish remover formulations is an ingredient which retards the evapora- Coating
  • a preferred example is paralfin Wax, typically having a Styrcnated Alkyd Butadiene Copolymer (water). Butadiene Copolymcr (solvent-s)- Acrylic Lacquer Phenolic (air dried) oxidizing Alkyd--. Oxidizing Epoxy Urea-Oxidising Alkyd (baked 325 F.).
  • Phenolic-pigmented air dried
  • Phenolic did 200 F.
  • Epon.-- Epon-full primer did 350 F.
  • Epon-catalyzed and primer did 250 F.
  • Epan-phenolic Epan-phenolic (2 coats baked).
  • Urea Melamine did 350 F.
  • Epon Urea did 350 F.
  • Silicone Alkyd Melamine did Nitrocellulose.
  • Vinyl did 200 Vinyl orange (air dried Polyvinyl Butyrate- Phenolic Modified (baked 325 F.).
  • compositions similar to modern commercial finish remover formulations were prepared and tested for effectiveness in looseningco-mmercially available surface finishes 15 from steel panels prepared as described in connection with the data of Table I.
  • the formulations used in the tests had the following compositions.
  • Formula 2 Weight percent Methylene chloride 61.2 Methyl alcohol 8.5 Paralfin wax 1.2
  • this invention provides improved finish remover compositions which are efiective in cases where the hitherto known removers fail, and which at the same time are just as effective as the latter for use on a wide variety of easily-removed coatmgs.
  • the finish remover compositions of the invention will in most cases contain a major proportion of methylene chloride, this is not necessarily always the case. Thus it is conceivable that for some special applications, the concentrations of thickener, evaporation retarder cosolvent and alkyl benzene sulfonic acid may total more than 50% of the total composition. Likewise, some other stripping agent may be used in conjunction with methylene chloride.
  • the appended claims are intended to cover those formulations in which methylene chloride is used as the principal stripping agent, i.e., in an amount greater than any other stripping agent, if any, which may also be present, regardless of whether or not the concentration of methylene chloride represents a major proportion of the total composition.
  • a finish remover composition consisting essentially of methylene chloride and a minor proportion, suflicient to improve the finish stripping ability of said remover, of a sulfonic acid selected from the group consisting of benzene sulfonic acid, alkyl benzene sulfonic acids in which the alkyl groups contain a total of from 1 to about 18 carbon atoms per molecule, and mixtures thereof.
  • a finish remover composition consisting essentially of methylene chloride and from about 0.1% to about 20% by weight of the total composition of a sulfonic acid selected from the group consisting of benzene sulfonic acid, alkyl benzene snlfonic acids in which the alkyl groups contain a total of from 1 to about 18 carbon atoms per molecule, and mixtures thereof.
  • finish remover composition of claim 2 which includes at least about 1% of a cosolvent for said methylene chloride and said sulfonic acid.
  • a finish remover composition consisting essentially of methylene chloride, about 5-40% by weight of the total composition, of methanol, about 0.1-3% of paratiin wax, about 0.52% of methyl cellulose, and about 0.55% of a sulfonic acid selected from the group consisting of benzene sulfonic acid, alkyl benzene sulfonic acids in which the alkyl groups contain a total of from 1 to about 18 carbon atoms per molecule, and mixtures thereof.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Paints Or Removers (AREA)
US779548A 1958-12-11 1958-12-11 Finish remover compositions Expired - Lifetime US3075923A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
LU37891D LU37891A1 (en(2012)) 1958-12-11
US779548A US3075923A (en) 1958-12-11 1958-12-11 Finish remover compositions
GB22890/59A GB860374A (en) 1958-12-11 1959-07-03 Remover composition
FR807096A FR1237488A (fr) 1958-12-11 1959-10-09 Compositions décapantes pour enduits de finissage
CH8014159A CH392739A (fr) 1958-12-11 1959-11-02 Composition décapante pour enduits de finissage
BE584265A BE584265A (fr) 1958-12-11 1959-11-03 Compositions décapantes pour enduits de finissage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US779548A US3075923A (en) 1958-12-11 1958-12-11 Finish remover compositions

Publications (1)

Publication Number Publication Date
US3075923A true US3075923A (en) 1963-01-29

Family

ID=25116802

Family Applications (1)

Application Number Title Priority Date Filing Date
US779548A Expired - Lifetime US3075923A (en) 1958-12-11 1958-12-11 Finish remover compositions

Country Status (6)

Country Link
US (1) US3075923A (en(2012))
BE (1) BE584265A (en(2012))
CH (1) CH392739A (en(2012))
FR (1) FR1237488A (en(2012))
GB (1) GB860374A (en(2012))
LU (1) LU37891A1 (en(2012))

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391085A (en) * 1965-10-28 1968-07-02 Army Usa Composition for stripping durable, adherent coatings
US3652420A (en) * 1964-07-24 1972-03-28 Peter Strong & Co Inc Cleanser compositons for artificial dentures and methods of preparing the same
US4165295A (en) * 1976-10-04 1979-08-21 Allied Chemical Corporation Organic stripping compositions and method for using same
US4169068A (en) * 1976-08-20 1979-09-25 Japan Synthetic Rubber Company Limited Stripping liquor composition for removing photoresists comprising hydrogen peroxide
US4187191A (en) * 1978-07-26 1980-02-05 General Motors Corporation Photoresist stripper with dodecylsulfonic acid and chlorinated solvents
US4215005A (en) * 1978-01-30 1980-07-29 Allied Chemical Corporation Organic stripping compositions and method for using same
US4242218A (en) * 1976-11-08 1980-12-30 Allied Chemical Corporation Phenol-free photoresist stripper
US4246130A (en) * 1979-06-21 1981-01-20 Amchem Products, Inc. Stripping composition and method for metals
US4438192A (en) 1983-02-14 1984-03-20 The Dow Chemical Company Photoresist stripper composition and method of use
US4483917A (en) * 1983-02-14 1984-11-20 The Dow Chemical Company Photoresist stripper composition and method of use
US4518518A (en) * 1983-03-30 1985-05-21 Amchem Products, Inc. Cold paint stripping composition
US4645617A (en) * 1986-01-03 1987-02-24 The Dow Chemical Company Stripping compositions with reduced vapor containing MeCl2, a wax and ethylene or propylene carbonate
US5073289A (en) * 1989-11-02 1991-12-17 The Curators Of The University Of Missouri Paint stripper composition having reduced volatility containing decanolactone, n-methylpyrrolidone and butyrolactone and method of use
US20050263743A1 (en) * 1998-07-06 2005-12-01 Lee Wai M Compositions and processes for photoresist stripping and residue removal in wafer level packaging
US20060115970A1 (en) * 2001-12-04 2006-06-01 Lee Wai M Compositions and processes for photoresist stripping and residue removal in wafer level packaging

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143842A (en) * 1983-07-28 1985-02-20 Savident Limited Textured paint stripping composition
GB2163446A (en) * 1984-08-22 1986-02-26 David Noel Rees Stripping organic coatings
GB2199337A (en) * 1986-12-19 1988-07-06 Pyrene Chemical Services Ltd Paint stripper composition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700491A (en) * 1926-04-15 1929-01-29 James H Gravell Material and process for removing paint and varnish
US1742347A (en) * 1926-02-23 1930-01-07 Studebaker Corp Art of removing varnish and enamel coatings
US2083013A (en) * 1932-02-15 1937-06-08 Michael W Freeman Metal cleaner
US2438038A (en) * 1944-10-02 1948-03-16 Monsanto Chemicals Method of removing paint, varnish, and lacquer films from surfaces
US2507985A (en) * 1945-11-01 1950-05-16 Wyandotte Chemicals Corp Paint remover composition
US2507983A (en) * 1945-11-01 1950-05-16 Wyandotte Chemicals Corp Paint remover composition
US2630409A (en) * 1949-10-06 1953-03-03 Du Pont Paint and varnish remover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1742347A (en) * 1926-02-23 1930-01-07 Studebaker Corp Art of removing varnish and enamel coatings
US1700491A (en) * 1926-04-15 1929-01-29 James H Gravell Material and process for removing paint and varnish
US2083013A (en) * 1932-02-15 1937-06-08 Michael W Freeman Metal cleaner
US2438038A (en) * 1944-10-02 1948-03-16 Monsanto Chemicals Method of removing paint, varnish, and lacquer films from surfaces
US2507985A (en) * 1945-11-01 1950-05-16 Wyandotte Chemicals Corp Paint remover composition
US2507983A (en) * 1945-11-01 1950-05-16 Wyandotte Chemicals Corp Paint remover composition
US2630409A (en) * 1949-10-06 1953-03-03 Du Pont Paint and varnish remover

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652420A (en) * 1964-07-24 1972-03-28 Peter Strong & Co Inc Cleanser compositons for artificial dentures and methods of preparing the same
US3839213A (en) * 1964-07-24 1974-10-01 Strong P Res And Dev Co Inc Denture cleansing compositions
US3391085A (en) * 1965-10-28 1968-07-02 Army Usa Composition for stripping durable, adherent coatings
US4169068A (en) * 1976-08-20 1979-09-25 Japan Synthetic Rubber Company Limited Stripping liquor composition for removing photoresists comprising hydrogen peroxide
US4165295A (en) * 1976-10-04 1979-08-21 Allied Chemical Corporation Organic stripping compositions and method for using same
US4242218A (en) * 1976-11-08 1980-12-30 Allied Chemical Corporation Phenol-free photoresist stripper
US4215005A (en) * 1978-01-30 1980-07-29 Allied Chemical Corporation Organic stripping compositions and method for using same
US4187191A (en) * 1978-07-26 1980-02-05 General Motors Corporation Photoresist stripper with dodecylsulfonic acid and chlorinated solvents
US4246130A (en) * 1979-06-21 1981-01-20 Amchem Products, Inc. Stripping composition and method for metals
US4438192A (en) 1983-02-14 1984-03-20 The Dow Chemical Company Photoresist stripper composition and method of use
US4483917A (en) * 1983-02-14 1984-11-20 The Dow Chemical Company Photoresist stripper composition and method of use
US4518518A (en) * 1983-03-30 1985-05-21 Amchem Products, Inc. Cold paint stripping composition
US4645617A (en) * 1986-01-03 1987-02-24 The Dow Chemical Company Stripping compositions with reduced vapor containing MeCl2, a wax and ethylene or propylene carbonate
US5073289A (en) * 1989-11-02 1991-12-17 The Curators Of The University Of Missouri Paint stripper composition having reduced volatility containing decanolactone, n-methylpyrrolidone and butyrolactone and method of use
US20050263743A1 (en) * 1998-07-06 2005-12-01 Lee Wai M Compositions and processes for photoresist stripping and residue removal in wafer level packaging
US7579308B2 (en) 1998-07-06 2009-08-25 Ekc/Dupont Electronics Technologies Compositions and processes for photoresist stripping and residue removal in wafer level packaging
US20060115970A1 (en) * 2001-12-04 2006-06-01 Lee Wai M Compositions and processes for photoresist stripping and residue removal in wafer level packaging
US7543592B2 (en) 2001-12-04 2009-06-09 Ekc Technology, Inc. Compositions and processes for photoresist stripping and residue removal in wafer level packaging

Also Published As

Publication number Publication date
GB860374A (en) 1961-02-01
CH392739A (fr) 1965-05-31
LU37891A1 (en(2012))
BE584265A (fr) 1960-03-01
FR1237488A (fr) 1960-07-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DIVERSEY WYANDOTTE CORPORATION, 1532 BIDDLE AVE.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DIVERSEY CORPORATION THE;REEL/FRAME:003954/0125

Effective date: 19820107

Owner name: DIVERSEY WYANDOTTE CORPORATION, A CORP. OF DE., MI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIVERSEY CORPORATION THE;REEL/FRAME:003954/0125

Effective date: 19820107