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US2518438A - Protective coatings - Google Patents

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Publication number
US2518438A
US2518438A US626916A US62691645A US2518438A US 2518438 A US2518438 A US 2518438A US 626916 A US626916 A US 626916A US 62691645 A US62691645 A US 62691645A US 2518438 A US2518438 A US 2518438A
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metal
soaps
lead
zinc
calcium
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US626916A
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Beretvas Helen Sellei
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NOX RUST CORP
NOX-RUST Corp
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NOX RUST CORP
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    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints

Definitions

  • This invention relates to protective coatings for surfaces and more particularly to protective coatings for metallic surfaces to reduce oxidation or corrosion thereof.
  • the principal object of this invention is to provide an improved protective coating for surfaces which may be readily applied as by spray ing, dipping or brushing, which readily and closely adheres to the surfaces for giving maximum protection, which readily dries and does not remain tacky, which does not chip or chalk or peel off after being applied, which is transparent and substantially colorless so that the nature of the coated surfaces may be observed, which does not require removal before the surfaces are subsequently painted or lacquered, and which reacts with the subsequently applied paint or lacquer to form a close bond between the paint or lacquer and the surfaces.
  • an object of this invention is to provide an improved protective coating for surfaces comprising soaps formed from metals and two types of organic acids, carried by a suitable carrying vehicle for application to the surfaces to be coated and protected.
  • a further object of this invention is to provide an improved protective coating for surfaces, comprising soaps, formed from at least two types of metals and two types of organic acids, carried by a suitable carrying vehicle for application to the surfaces to be coated and protected.
  • Another object of this invention is to include in such protective coatings an inhibitor compound for further deterring the oxidation or corrosion of the coated surfaces.
  • This invention utilizes metal soaps formed from metals and two different organic acids.
  • One of the organic acids is a non-drying acid, and naphthenic acid has been successfully utilized.
  • a metal soap is formed by combining metals with this non-drying type organic acid and copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt or nickel have been successfully combined with naphthenic acid to form those metal naphthenate soaps.
  • the other organic acid is an acid, having a relatively high iodine value, such as tall oil acid, rosin acids and tun oil acid.
  • a metal soap is formed by combining metals with these type organic acids and copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel have been successfully combined with tall oil acid to form those metal tall oil soaps.
  • a suitable carrying vehicle which has been successfully utilized for the different soaps comprises neutral spirits alone or neutral spirits in combination with a mineral oil.
  • the dilferent soaps may have the same metals or different metals.
  • lead tall oil soap may be mixed with lead naphthenate soap, or lead tall oil soap may be mixed With zinc naphthenate soap and calcium naphthenate soap.
  • the protective coating is transparent and substantially colorless, although slight coloring may be present depending upon the metals utilized.
  • the transparent coatings may be tinted or dyed to provide a coating of pleasing color.
  • the transparent coating enables one to observe the nature or character of the surfaces below the coating.
  • the soaps being formed of organic acids including naphthenic acid (a petroleum product) causes the protective coating to adhere tenaciously to the coated surfaces thereby providing maximum protection for the coated surfaces.
  • naphthenic acid a petroleum product
  • mineral oil in the carrying vehicle also assists in the adhering qualities of the protective coating.
  • the protective coating has drying characteristics and includes metals, it bonds readily with paints or lacquers subsequently applied and therefore forms a good base for the paints and lacquers.
  • the character of the protective coating such as toughness, adhesion, thickness, speed of drying, and resistance to heat, humidity, salt spray and salt water immersion, may be controlled by the proper selection of soaps and relative proportions of the ingredients utilized.
  • the applied protective coating dries quite rapidly, it may be subjected to heat, inirarcd'rays or ultraviolet rays for accelerating the drying action without impairing the protective coating. 7
  • compositions of several very successful pro-tam tive' coatings are, by Way of example, set forth in detail below and the various protective coatings are designated by the letters A to F, respectively.
  • soaps when combined with the 10 4 the soaps may be simultaneously formed as by simultaneously reacting one or more metals having basic oxides with the two different acids.
  • a liquid mixture for producing a, resin like protective coating for surfaces consisting essen tially of at least 2 percent of a metal naphthenate soap formed from naphthenic acid and a, metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, a metal tall oil soap formed from tall oil acid and a, metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, and a carrying vehicle which acts as a solvent for said soaps.
  • a liquid mixture for producing a,- resin like protective coating for surfaces consisting essentially of at least two percent of a metal naphth'enate soap formed from naphthenic acid and a metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, a metal tall oil soap formed from tall oil acid and a AB'CD Soaps Zinc naphthenate-8% zinc Calcium naphtlienate-5% cal- Per cent Per cent Per cent Per cent Per cent Per cent 10 10 Barium oil base;
  • the protective coatings of A and B are of mediumthickness and are thinner than the heavy protective coatings of C through FL This is due metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, an-
  • Protective coatings of light thickness ma beproduced by adding spirits to the above liquids to obtain. thinner liquids.
  • thethin ner' liquids for producing light protective coat ings' have been successfully obtained mix-ing the liquids of A or B with spirits, in the proportions of" 20% liquids of A or Band 80% spirits.
  • Each of the protective coatings whether light, medium or heavy, giveadequate surface protec.' tion for their intended purposes and generally speaking the thicker or heavier the protective coatingthe longer it remains eifective.
  • the vari ous protective coatings have successfully. protected surfaces from corrosion when subjected to high relative humidities, saltsprays, salt water immersions and tapv water immersionsior av number of days, and it is found, generally, that" the heavier the protective coating the greater the number of days that protection is afforded;
  • a liquid mixture for producing a resin like protective coating for surfaces consisting essentially of a lead tall oil soap, a zinc naphthenate soap, a calcium naphthenatesoap, and a carrying vehicle which acts as a solvent for said soaps.
  • strontium barium, tin, lead, chromium, manga-' nese, cobalt, and nickel, and 40 to of a solvent for the soaps.
  • a treating composition for producing a resinlike protective coating comprising 10 to 30% or a metal soap ofnaph'thenic'acid in which the 7% metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, to 30% of a metal soap of a drying acid selected from the group consisting of tall oil, tung oil, and rosin oil acids, the metal component of which is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, 3 to 10% of an inhibitor, and 40 to 70% of a solvent for the soaps.
  • a resin-like protective coating comprising at'least 2 percent of a metal soap of naphthenic acid in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, and a metal soap of an unsaturated air-drying acid selected from the group consisting of tall oil, tung oil, and rosin oil acids, and mixtures thereof, and in which the metal component is selected from the above metal group.
  • a resin-like protective coating as claimed in claim 7 containing in addition 0.3 to 1 part of another metal corrosion inhibitor.
  • a liquid corrosion inhibiting composition for providing a resin-like protective coating comprising a calcium naphthenate and a zinc naphthenate together totaling at least two percent of the composition a metallic soap formed of tall oil acids, the metallic component of which is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt, nickel, and mixtures thereof, and a carrying vehicle in which said soaps are soluble.
  • a liquid corrosion inhibiting composition for providing a resin-like protective coating comprising a calcium naphthenate and a zinc naphthenate together totaling at least two percent of the composition, a lead tall oil soap, and a carrying vehicle in which said soaps are soluble.
  • a treating composition for producing a resin-like protective coating consisting essentially of a metal soap of naphthenic acid in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, ametal soap of an unsaturated drying acid having a relatively high ,iodine value in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt and nickel, each of the soapsbeing present in amounts greater than 2 percent by weight, a mineral oil and a solvent for saidsoaps.

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  • 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)
  • Lubricants (AREA)

Description

Patented Aug. 15, 1950 PROTECTIVE COATINGS Helen Sellei Beretvas, Chicago, Ill., assignor to Nox-Rust Corporation, a corporation of Illinois No Drawing. Application November 5, 1945, Serial No. 626,916
11 Claims.
This invention relates to protective coatings for surfaces and more particularly to protective coatings for metallic surfaces to reduce oxidation or corrosion thereof.
The principal object of this invention is to provide an improved protective coating for surfaces which may be readily applied as by spray ing, dipping or brushing, which readily and closely adheres to the surfaces for giving maximum protection, which readily dries and does not remain tacky, which does not chip or chalk or peel off after being applied, which is transparent and substantially colorless so that the nature of the coated surfaces may be observed, which does not require removal before the surfaces are subsequently painted or lacquered, and which reacts with the subsequently applied paint or lacquer to form a close bond between the paint or lacquer and the surfaces.
More specifically an object of this invention is to provide an improved protective coating for surfaces comprising soaps formed from metals and two types of organic acids, carried by a suitable carrying vehicle for application to the surfaces to be coated and protected.
A further object of this invention is to provide an improved protective coating for surfaces, comprising soaps, formed from at least two types of metals and two types of organic acids, carried by a suitable carrying vehicle for application to the surfaces to be coated and protected.
Another object of this invention is to include in such protective coatings an inhibitor compound for further deterring the oxidation or corrosion of the coated surfaces.
This invention utilizes metal soaps formed from metals and two different organic acids.
One of the organic acids is a non-drying acid, and naphthenic acid has been successfully utilized. A metal soap is formed by combining metals with this non-drying type organic acid and copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt or nickel have been successfully combined with naphthenic acid to form those metal naphthenate soaps.
The other organic acid is an acid, having a relatively high iodine value, such as tall oil acid, rosin acids and tun oil acid. A metal soap is formed by combining metals with these type organic acids and copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel have been successfully combined with tall oil acid to form those metal tall oil soaps.
One or more metal soaps from each of these,
groups are mixed together in a suitable carrying vehicle which acts as a solvent for the soaps. A suitable carrying vehicle which has been successfully utilized for the different soaps comprises neutral spirits alone or neutral spirits in combination with a mineral oil.
In mixing the different soaps in the carrying vehicle the dilferent soaps may have the same metals or different metals. For example, lead tall oil soap may be mixed with lead naphthenate soap, or lead tall oil soap may be mixed With zinc naphthenate soap and calcium naphthenate soap.-
that the dried coating is very difiicult to remove.
by conventional cleaning procedures.
The protective coating is transparent and substantially colorless, although slight coloring may be present depending upon the metals utilized.
For example, cobalt in the soaps produces a slight.
greenish or bluish tint to the coating. If desired, the transparent coatings may be tinted or dyed to provide a coating of pleasing color. The transparent coating enables one to observe the nature or character of the surfaces below the coating.
The soaps being formed of organic acids including naphthenic acid (a petroleum product) causes the protective coating to adhere tenaciously to the coated surfaces thereby providing maximum protection for the coated surfaces. In some instances, the addition of mineral oil in the carrying vehicle also assists in the adhering qualities of the protective coating.
Since the protective coating has drying characteristics and includes metals, it bonds readily with paints or lacquers subsequently applied and therefore forms a good base for the paints and lacquers.
The character of the protective coating, such as toughness, adhesion, thickness, speed of drying, and resistance to heat, humidity, salt spray and salt water immersion, may be controlled by the proper selection of soaps and relative proportions of the ingredients utilized.
It is believedin order to further deter the oxidation or corrosion of the coated surfaces an inhibitor of barium base oil, which is a mixture of mineral oil and barium soap utilizing oxidized petroleum for the fatty acid, has been successfully used in this 5 Here then, for the first time there is provided a is protective coating of this character having an oxidation or corrosion inhibitor which is transparent and substantially colorless.
While the applied protective coating dries quite rapidly, it may be subjected to heat, inirarcd'rays or ultraviolet rays for accelerating the drying action without impairing the protective coating. 7
In order to further disclose this invention the compositions of several very successful pro-tam tive' coatings are, by Way of example, set forth in detail below and the various protective coatings are designated by the letters A to F, respectively.
These inhibitors when combined with the 10 4 the soaps may be simultaneously formed as by simultaneously reacting one or more metals having basic oxides with the two different acids.
Although the invention has been described with certain illustrated formulas, it will be apparent that changes and modifications may be readily made without departing from the spirit andscope of the invention.
I claim as my invention 1. A liquid mixture for producing a, resin like protective coating for surfaces consisting essen tially of at least 2 percent of a metal naphthenate soap formed from naphthenic acid and a, metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, a metal tall oil soap formed from tall oil acid and a, metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, and a carrying vehicle which acts as a solvent for said soaps.
2. A liquid mixture for producing a,- resin like protective coating for surfaces consisting essentially of at least two percent of a metal naphth'enate soap formed from naphthenic acid and a metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, a metal tall oil soap formed from tall oil acid and a AB'CD Soaps Zinc naphthenate-8% zinc Calcium naphtlienate-5% cal- Per cent Per cent Per cent Per cent Per cent Per cent 10 10 Barium oil base;
The protective coatings of A and B are of mediumthickness and are thinner than the heavy protective coatings of C through FL This is due metal of the group of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt and nickel, an-
to the fact that the relative percentages of soaps other metal corrosion inhibitor, and a carrying and carrying vehicles in the liquid mixture dilfer, The solid contents of A and B' are'l'ess than the solid contents of C through Fther'eby pro vidingthinner protective coatings.
Protective coatings of light thickness ma beproduced by adding spirits to the above liquids to obtain. thinner liquids. For example, thethin ner' liquids for producing light protective coat ings' have been successfully obtained mix-ing the liquids of A or B with spirits, in the proportions of" 20% liquids of A or Band 80% spirits.
Each of the protective coatings, whether light, medium or heavy, giveadequate surface protec.' tion for their intended purposes and generally speaking the thicker or heavier the protective coatingthe longer it remains eifective. The vari ous protective coatings have successfully. protected surfaces from corrosion when subjected to high relative humidities, saltsprays, salt water immersions and tapv water immersionsior av number of days, and it is found, generally, that" the heavier the protective coating the greater the number of days that protection is afforded;
Whileseparate metal soaps have" beendescribed as being mixed in the carrying vehicle,
vehicle which acts as a solvent for said soaps and inhibitor.
3. A liquid mixture for producing a resin like protective coating for surfaces consisting essentially of a lead tall oil soap, a zinc naphthenate soap, a calcium naphthenatesoap, and a carrying vehicle which acts as a solvent for said soaps.
strontium, barium, tin, lead, chromium, manga-' nese, cobalt, and nickel, and 40 to of a solvent for the soaps.
51 A treating composition for producing a resinlike protective coating comprising 10 to 30% or a metal soap ofnaph'thenic'acid in which the 7% metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, to 30% of a metal soap of a drying acid selected from the group consisting of tall oil, tung oil, and rosin oil acids, the metal component of which is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, 3 to 10% of an inhibitor, and 40 to 70% of a solvent for the soaps.
6; A resin-like protective coating comprising at'least 2 percent of a metal soap of naphthenic acid in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, and a metal soap of an unsaturated air-drying acid selected from the group consisting of tall oil, tung oil, and rosin oil acids, and mixtures thereof, and in which the metal component is selected from the above metal group.
7. A resin-like protective coating as claimed in claim 6 in which the soaps are present in the ratio of 1 to 3 parts of the naphthenic soap to l to 3 parts of the unsaturated drying oil soap.
8. A resin-like protective coating as claimed in claim 7 containing in addition 0.3 to 1 part of another metal corrosion inhibitor.
9. A liquid corrosion inhibiting composition for providing a resin-like protective coating comprising a calcium naphthenate and a zinc naphthenate together totaling at least two percent of the composition a metallic soap formed of tall oil acids, the metallic component of which is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, iron, cobalt, nickel, and mixtures thereof, and a carrying vehicle in which said soaps are soluble.
10. A liquid corrosion inhibiting composition for providing a resin-like protective coating comprising a calcium naphthenate and a zinc naphthenate together totaling at least two percent of the composition, a lead tall oil soap, and a carrying vehicle in which said soaps are soluble.
11. A treating composition for producing a resin-like protective coating consisting essentially of a metal soap of naphthenic acid in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt, and nickel, ametal soap of an unsaturated drying acid having a relatively high ,iodine value in which the metal is selected from the group consisting of copper, magnesium, calcium, zinc, strontium, barium, tin, lead, chromium, manganese, cobalt and nickel, each of the soapsbeing present in amounts greater than 2 percent by weight, a mineral oil and a solvent for saidsoaps.
HELEN SELLEI BERETVAS.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,983,006 Schladebach Dec. 4, 1934 2,124,446 Detwiler July 19, 1938 2,334,071 Cook Nov. 9, 1943 2,367,462 Farber Jan. 16, 1945 2,418,075 Kollen Mar. 25, 1947 2,421,672 Wilson June 3, 1947 FOREIGN PATENTS Number Country Date 681,855 Germany Oct. 3, 1939

Claims (1)

1. A LIQUID MIXTURE FOR PRODUCING A RESIN LIKE PROTECTIVE COATING FOR SURFACES CONSISTING ESSENTIALLY OF AT LEAST 2 PERCENT OF A METAL NAPHTHENATE SOAP FORMED FROM NATHTHENIC ACID AND A METAL OF THE GROUP OF COPPER, MAGNESIUM, CALCIUM, ZINC, STRONTIUM, BARIUM, TIN, LEAD, CHROMIUM, MANGANESE, IRON, COBALT AND NICKEL, A METAL TALL OIL SOAP FORMED FROM TALL OIL ACID AND A METAL OF THE GROUP OF COPPER, MAGNESIUM, CALCIUM, ZINC, STRONTIUM, BARIUM, TIN, LEAD, CHROMIUM, MANGANESE, IRON, COBALT AND NICKEL, AND A CARRYING VEHICLE WHICH ACTS AS A SOLVENT FOR SAID SOAPS.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289155A3 (en) * 1987-04-27 1990-05-30 Imperial Chemical Industries Plc Anti-corrosive composition
US4997480A (en) * 1987-04-07 1991-03-05 The Sherwin-Williams Company Alkyd resins and the use thereof for high solids coatings

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983006A (en) * 1928-02-02 1934-12-04 Ig Farbenindustrie Ag Antirust paint
US2124446A (en) * 1936-06-09 1938-07-19 Texas Co Slushing oil
DE681855C (en) * 1935-10-26 1939-10-03 Gustav Leuchte Nachf Process for the production of paints from tallow oil or tallow fatty acids
US2334071A (en) * 1941-07-02 1943-11-09 American Cyanamid Co Slushing oil
US2367462A (en) * 1942-04-15 1945-01-16 Polyxor Chemical Co Inc Utilization of wood acids
US2418075A (en) * 1945-11-05 1947-03-25 Union Oil Co Rust-preventive composition
US2421672A (en) * 1944-01-21 1947-06-03 Union Oil Co Rust preventive composition

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983006A (en) * 1928-02-02 1934-12-04 Ig Farbenindustrie Ag Antirust paint
DE681855C (en) * 1935-10-26 1939-10-03 Gustav Leuchte Nachf Process for the production of paints from tallow oil or tallow fatty acids
US2124446A (en) * 1936-06-09 1938-07-19 Texas Co Slushing oil
US2334071A (en) * 1941-07-02 1943-11-09 American Cyanamid Co Slushing oil
US2367462A (en) * 1942-04-15 1945-01-16 Polyxor Chemical Co Inc Utilization of wood acids
US2421672A (en) * 1944-01-21 1947-06-03 Union Oil Co Rust preventive composition
US2418075A (en) * 1945-11-05 1947-03-25 Union Oil Co Rust-preventive composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997480A (en) * 1987-04-07 1991-03-05 The Sherwin-Williams Company Alkyd resins and the use thereof for high solids coatings
EP0289155A3 (en) * 1987-04-27 1990-05-30 Imperial Chemical Industries Plc Anti-corrosive composition
US4999250A (en) * 1987-04-27 1991-03-12 Imperial Chemical Industries Plc Composition and use

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