GB2377710A - A paint stripper - Google Patents
A paint stripper Download PDFInfo
- Publication number
- GB2377710A GB2377710A GB0117517A GB0117517A GB2377710A GB 2377710 A GB2377710 A GB 2377710A GB 0117517 A GB0117517 A GB 0117517A GB 0117517 A GB0117517 A GB 0117517A GB 2377710 A GB2377710 A GB 2377710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paint
- weight
- varnish
- linseed oil
- paint stripper
- 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.)
- Granted
Links
- 239000003973 paint Substances 0.000 title claims abstract description 93
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002966 varnish Substances 0.000 claims abstract description 40
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000944 linseed oil Substances 0.000 claims abstract description 26
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 26
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 239000002023 wood Substances 0.000 claims abstract description 21
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 14
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 8
- -1 alkyl glycol Chemical compound 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 4
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- QYMFNZIUDRQRSA-UHFFFAOYSA-N dimethyl butanedioate;dimethyl hexanedioate;dimethyl pentanedioate Chemical compound COC(=O)CCC(=O)OC.COC(=O)CCCC(=O)OC.COC(=O)CCCCC(=O)OC QYMFNZIUDRQRSA-UHFFFAOYSA-N 0.000 claims description 2
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003750 conditioning effect Effects 0.000 claims 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 9
- 239000002562 thickening agent Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 240000000731 Fagus sylvatica Species 0.000 description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 description 2
- 241000158728 Meliaceae Species 0.000 description 2
- XYQRXRFVKUPBQN-UHFFFAOYSA-L Sodium carbonate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]C([O-])=O XYQRXRFVKUPBQN-UHFFFAOYSA-L 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 239000011928 denatured alcohol Substances 0.000 description 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229940018038 sodium carbonate decahydrate Drugs 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 description 1
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 240000008299 Pinus lambertiana Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- RFAZFSACZIVZDV-UHFFFAOYSA-N butan-2-one Chemical compound CCC(C)=O.CCC(C)=O RFAZFSACZIVZDV-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 229920006184 cellulose methylcellulose Polymers 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- XTDYIOOONNVFMA-UHFFFAOYSA-N dimethyl pentanedioate Chemical compound COC(=O)CCCC(=O)OC XTDYIOOONNVFMA-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000005448 ethoxyethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
Landscapes
- 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)
- Paints Or Removers (AREA)
Abstract
A paint and varnish stripper comprises one or more active paint and varnish removing solvents that blister and/or soften aged paint and 1 to 10% by weight of linseed oil, preferably boiled linseed oil. The paint stripper is particularly suitable for use in stripping paint and varnish from wood surfaces. The solvent is preferably dichloromethane and other components of the stripper may include an accelerant, e.g. methanol.
Description
<Desc/Clms Page number 1>
Title: A Paint Stripper This invention relates to a paint stripper and, more particularly, to a paint stripper which is particularly suitable for removing paint or varnish from wooden substrates.
Dissolving paint strippers are known. For example, commercially available paint strippers are known which contain dichloromethane and methanol. Other paint strippers are known which are based on dimethylsulfoxide (DMSO) and may contain an alkyl glycol ether or an alkyl diglycol ether. Paint strippers based on dichloromethane have the advantage that they are extremely effective having a fast stripping action. Paint strippers based on DMSO have a slower stripping action but have the advantage of low health risk due to toxicity as compared to dichloromethane based paint removers. These known paint strippers are generally available for use in removing paint or varnish from all types of substrates including plaster, metal and wood.
When used on wooden substrates conventional paint strippers have the problem that the stripped wood has a dull washed-out appearance and the grain of the wood is not clearly evident.
The object of the present invention is to provide a paint stripper which has the advantages of conventional paint strippers and in addition, when used on wooden substrates results in stripped wood which has an improved appearance both when bare and after re-coating.
The invention provides a paint stripper comprising 90 to 99% by weight of one or more active paint and varnish removing solvents that blister and/or soften aged paint and varnish optionally with one or more accelerants and I to 10% by weight of linseed oil.
According to a preferred embodiment the paint stripper comprises 93 to 96% by weight of the paint and varnish removing solvent or solvents optionally with one or more accelerants and 4 to 7% by weight of linseed oil.
<Desc/Clms Page number 2>
According to the present invention linseed oil is incorporated in a paint stripper based on a conventional paint-removing solvent or solvent combination.
Linseed oil is extracted from flax and consists mainly of CI8 fatty acids. It is known for use in paints, varnishes and lacquers and is available commercially as both raw linseed oil and boiled linseed oil, which has been thickened by boiling and dries rapidly on exposure to air. Boiled linseed oil can contain chemical accelerators which speed up curing time. In the present invention, the use of boiled linseed oil is preferred.
The linseed oil is preferably incorporated in the paint stripper according to the invention in an amount of 4 to 7% by weight.
Examples of solvents which will blister or soften aged paint and varnish and are commonly used as active solvents in paint and varnish stripper formulations are: dichloromethane, alkyl glycol or alkyl diglycol ethers such as ethyl diglycol and butyl diglycol; benzyl alcohol; dimethyl sulfoxide (DMSO) ; dibasic ester blends, typically blend of dimethyl glutarate (55-65% w/w), dimethyl succinate (15-25% w/w), dimethyl adipate (10-25% w/w); ethyl-3-ethoxypropionate; ethyl acetate; butyl acetate; gamma butyrolactone; ketones, such as methyl ethyl ketone (butan-2-one) and acetone; N-methyl-2-pyrrolidone (NMP); 1, 3 dioxolane ; and toluene.
According to a particular embodiment, there is provided a paint stripper comprising 90 to 99% by weight, more particularly 93 to 96% by weight of active paint and varnish solvents consisting of dichloromethane and up to 10% by weight of methanol and 1 to 10% by weight linseed oil.
A particular formulation comprises 86 to 91% by weight dichloromethane, 5 to 7% by weight methanol and 4 to 7% by weight linseed oil.
The paint stripper according to the invention may include one or more optional conventional components of paint strippers as described below (percentages by weight are based on the sum of the active paint and varnish removing solvents and linseed oil).
<Desc/Clms Page number 3>
An accelerant for the paint and varnish stripping may be incorporated, that is a solvent which acts as accelerant for paint and varnish stripping, for example methanol or ethanol in the format of industrial methylated spirit. The accelerant is preferably incorporated in an amount of 4 to 10% by weight, more particularly 5 to 7% by weight. The incorporation of methanol in the paint stripper is particularly desirable when the composition is based on dichloromethane.
An extending solvent that does not blister or soften paint and varnish, for example, white spirit, in an amount of up to 5% by weight, preferably up to 2% by weight may be incorporated.
An evaporation retardant such as i. e. wax or vegetable ester derivative may be incorporated for example, in an amount of up to 2% by weight. For example, the paint stripper may contain 0 to 2% by weight, preferably 1.0 to 1.5% of paraffin wax as an evaporation retardant; The paint stripper may contain a thickener which must be compatible with linseed oil.
The function of the thickener is generally to increase the viscosity of the solution.
Suitable thickeners are inorganic thickeners, for example polysilicic acids and clay minerals, such as zeolites and silicas. Suitable organic modified natural substances may include carboxymethylcellulose, cellulose ether, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, ethoxyethyl cellulose and hydroxy propyl methyl cellulose. Suitable organic natural thickeners are starch, gum arabic, dextrins, gelatine and alginates.
For example the paint stripper may contain up to 3%, more particularly 0.5 to 1.5% of at least one thickener. When the paint stripper is based on dichloromethane the thickener is preferably based on a cellulose derivative such as hydroxy propyl methyl cellulose.
The paint stripper may contain a conventional surfactant to improve wetting and washability, for example in an amount of 0.2 to 0.7%.
<Desc/Clms Page number 4>
The paint stripper may contain an in-can corrosion inhibitor in an amount of, for example, up to 1 % by weight.
The components of the paint stripper according to the invention may readily be mixed together.
The paint stripper of the invention has a broad application spectrum. Paints or varnishes based on the following organic binders may be removed with the stripper according to the invention: alkyd resin, chlorinated rubber, epoxy resin, acrylate resin, polyester, polyurethane, polyvinyl acetate, chlorinated polypropylene and cyclo rubber.
We have surprisingly found that the invention stripper has noticeably improved performance, i. e. greater penetration through paint and varnish layers compared to similar conventional paint strippers without the inclusion of linseed oil.
It was also surprising to find that after removing paint and varnish with the invention stripper from wood items constructed from a range of variety of timbers (e. g. pine, oak, mahogany, beech etc). and after removing residual paint and varnish with solvent such as white spirit or methylated spirit, and after drying off residual solvent, the stripped wood contains a light coating of absorbed linseed oil that gives the bare wood a bright and rejuvenated appearance compared to the same wood that has been stripped with conventional chemical paint and varnish strippers.
Wood from which paint and varnish has been stripped with the paint and varnish stripper according to the invention, can, after cleaning with solvent as above and after drying, be successfully re-coated with both solvent based and water based wood coatings such as varnishes, paints, stains, finishing waxes, oils polishes etc.
The paint stripper according to the invention has good application properties being particularly easy to apply by brush using dabbing action and is particularly adapted for use on vertical surfaces.
<Desc/Clms Page number 5>
For transparent coatings such as varnish, the re-coated wood that has been stripped with the paint and varnish stripper according to the invention has a noticeably brighter and superior appearance when compared to the same wood that has been stripped with conventional paint and varnish strippers and re-coated with the same transparent coating.
We have also found that the light coat of linseed oil absorbed into wood stripped with the invention paint stripper results in a reduction in coating application weight when re-coating with paints and varnishes etc. , compared to the coating weight required when re-coating wood stripped with conventional paint stripper.
The paint stripper of the invention thus has the advantages and positive effects of conventional paint stripper with additional advantages that, when applied to a wooden substrate, the appearance of the stripped wood both when bare and after re-coating is improved.
The composition, properties and results achieved by the paint stripper according to the present invention as compared with a commercially available paint stripper are set out in the following table.
<Desc/Clms Page number 6>
The commercially available paint stripper (1) consisted of
Component % by weight Dichloromethane 85.40 Methanol 9.30 White Spirit 1. 50 Cellulose derivative thickener 1. 00 Surfactant (30% by weight aqueous 1.30 solution) Paraffin Wax 0. 80 Water* 0. 60 Sodium Carbonate Decahydrate* 0. 04 Sodium tetraborate* 0.06 T m can corrosion innibitor solution The paint stripper of the invention (2) consisted of
Component % by weight Dichloromethane 86. 30 Methanol 5. 80 Single Boiled Linseed Oil 5. 00 Cellulose derivative thickener 0. 90 Paraffin Wax 1. 30 Water* 0. 60 Sodium Carbonate Decahydrate* 0. 04 Sodium tetraborate* 0. 06 * In can corrosion inhibitor solution
<Desc/Clms Page number 7>
Commercially Paint Available Stripper of Paint Stripper Invention (1) (2) General Properties Appearance @20 C Smooth colourless Smooth straw clear viscous semi-coloured clear gel highly structured semi-gel Odour Characteristic sweet Characteristic dichloromethane sweet dichloromethan e Viscosity @20 C (Rotothinner) 2. 5 Poise 4.2 Poise Viscosity @20 C (Brookfield DV-II+ spindle 3200cPs 7100cPs RV5/20rpm) SG (density) @20 C1. 220L232 Application Properties (* Poor, ** Satisfactory, ### Good, #### Very Good ***** Excellent) Suitability for vertical surfaces ? Easy to apply by ***** Easy to brush using dabbing apply by brush action. Very little using dabbing sagging action. Excellent Very little saggmg Suitability for intricate surfaces (furniture, #/## A little difficult #/## A little mouldings etc). to get into intricate difficult to get into mouldings etc. Easy to intricate mouldings apply by brush using etc. Easy to apply dabbing action. Very by brush using little sagging dabbing action.
Very little sagging Paint & Varnish Removal Time taken to fully rerupt old paint/ varnish Up to 5 mins 3 to 5 mins Time after which paint/varnish can be Approx. 30 mins Approx. 25 stripped mins Method of neutralisation Detergent in cold water. Wipe with white Wipe with white spirit or spirit or methylated methylated spirit to spirit avoid raising grain
<Desc/Clms Page number 8>
Commercially Paint Available Stripper of Paint Stripper Invention (1) (2) Appearance of Stripped Wood (# Poor, ## Satisfactory, ### Good, #### Very Good ##### Excellent) Bare Wood ### ##### Re-coated with : # # Solvent based varnishes ### ##### Water based varnish ### ##### Finishing Wax ### ##### Finishing oils ### ##### Solvent based gloss paints ##### ##### Test Results Linseed oil absorbed after stripping: Pine 0 10g/m2 Beech 0 20g/m2 Oak 0 109/m2 Mahogany 0 5g/m2 Ash 0 5g/m2 Cedar 0 30 m2 Coating weight after stripping softwood : 33g/m2 (28% lower than after stripping with Solvent based varnish 46g/m2 (1)) 46g/m2 (21 % lower than after stripping with Wood primer (1)) Weight increase of wood panels (approx.
0. 015m2) stripped with remover, dried and immersed in water for 1 hour: Softwood 7. 5g 5. 5g Oak 21g 8g
Claims (10)
- CLAIMS: 1. A paint stripper comprising 90 to 99% by weight of one or more active paint and varnish removing solvents that blister and/or soften aged paint and varnish optionally with one or more accelerants and 1 to 10% by weight of linseed oil.
- 2. A paint stripper according to claim 1 comprising 93 to 96% by weight of the paint and varnish removing solvent or solvents optionally with one or more accelerants and 4 to 7% by weight of linseed oil.
- 3. A paint stripper according to claim 1 or 2, wherein the linseed oil is boiled linseed oil.
- 4. A paint stripper according to any of claims 1 to 3, wherein the paint and varnish removing solvent is selected from one or more of dichloromethane, alkyl glycol or alkyl diglycol ethers; benzyl alcohol, dimethyl sulfoxide (DMSO), dibasic ester blends, ethyl-3-ethoxypropionate, ethyl acetate, butyl acetate, gamma butyrolactone, ketones, N-methyl-2-pyrrolidone (NMP); 1,3-dioxolane ; and toluene
- 5. A paint stripper according to any of claims 1 to 4, which comprises 4 to 10% by weight of an accelerant.
- 6. A paint stripper according to claim 5, which comprises 5 to 7% by weight of the accelerant.
- 7. A paint stripper according to claim 5 or 6, wherein the accelerant is methanol.
- 8. A paint stripper according to any of claims 1 to 6, comprising dichloromethane and methanol.
- 9. A paint stripper according to claim 8 comprising 86 to 91 % by weight dichloromethane, 5 to 7% by weight methanol and 4 to 7% by weight linseed oil.<Desc/Clms Page number 10>
- 10. Use of linseed oil as a wood conditioning agent incorporated in an amount of 1 to 10% by weight in a paint stripper comprising 90 to 99% by weight of one or more active paint and varnish removing solvents that blister and/or soften aged paint and varnish optionally with one or more accelerants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0117517A GB2377710B (en) | 2001-07-18 | 2001-07-18 | A paint stripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0117517A GB2377710B (en) | 2001-07-18 | 2001-07-18 | A paint stripper |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0117517D0 GB0117517D0 (en) | 2001-09-12 |
| GB2377710A true GB2377710A (en) | 2003-01-22 |
| GB2377710B GB2377710B (en) | 2005-09-07 |
Family
ID=9918741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0117517A Expired - Fee Related GB2377710B (en) | 2001-07-18 | 2001-07-18 | A paint stripper |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2377710B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008135409A1 (en) * | 2007-05-07 | 2008-11-13 | Rhodia Operations | Anti-graffiti treatment |
| DE102009046296A1 (en) * | 2009-11-02 | 2011-05-19 | Püschner, Karsten | Method for extracting oil-containing consolidation agent from e.g. wood sculpture, involves contacting organic solvent i.e. cyclic ether, with wood object, so that oil-containing consolidation agent in object is extracted by solvent |
| CN102492325A (en) * | 2011-11-18 | 2012-06-13 | 天长市通天化工有限责任公司 | Latex paint detergent |
| CN103980761A (en) * | 2014-05-22 | 2014-08-13 | 陕西师范大学 | ABS (Acrylonitrile Butadiene Styrene) plastic paint remover and paint removal method thereof |
| CN104479443A (en) * | 2014-11-28 | 2015-04-01 | 李国金 | Environment-friendly paint remover and preparation method thereof |
| CN106519781A (en) * | 2016-11-15 | 2017-03-22 | 广东石油化工学院 | Preparation method and use of powdery coating removal composition |
| WO2019168919A1 (en) * | 2018-02-28 | 2019-09-06 | The University Of Massachusetts | Composition and method for removing a coating from a surface |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU355202A1 (en) * | METHOD FOR REMOVING COATINGS FROM PAINT ON BRONZE PRODUCTS | |||
| US5783254A (en) * | 1997-09-29 | 1998-07-21 | Maynard; Robert G. | Paint applicator method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU355202A1 (en) * | METHOD FOR REMOVING COATINGS FROM PAINT ON BRONZE PRODUCTS | |||
| US5783254A (en) * | 1997-09-29 | 1998-07-21 | Maynard; Robert G. | Paint applicator method |
Non-Patent Citations (1)
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| WPI ABSTRACT, Accession No. 1973-32864U [23] & SU 355202 A1 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008135409A1 (en) * | 2007-05-07 | 2008-11-13 | Rhodia Operations | Anti-graffiti treatment |
| FR2915997A1 (en) * | 2007-05-07 | 2008-11-14 | Rhodia Recherches & Tech | ANTI-GRAFFITI TREATMENT. |
| US8137475B2 (en) | 2007-05-07 | 2012-03-20 | Rhodia Operations | Anti-graffiti treatment |
| DE102009046296A1 (en) * | 2009-11-02 | 2011-05-19 | Püschner, Karsten | Method for extracting oil-containing consolidation agent from e.g. wood sculpture, involves contacting organic solvent i.e. cyclic ether, with wood object, so that oil-containing consolidation agent in object is extracted by solvent |
| CN102492325A (en) * | 2011-11-18 | 2012-06-13 | 天长市通天化工有限责任公司 | Latex paint detergent |
| CN102492325B (en) * | 2011-11-18 | 2014-01-01 | 天长市通天化工有限责任公司 | Latex paint detergent |
| CN103980761A (en) * | 2014-05-22 | 2014-08-13 | 陕西师范大学 | ABS (Acrylonitrile Butadiene Styrene) plastic paint remover and paint removal method thereof |
| CN103980761B (en) * | 2014-05-22 | 2015-10-28 | 陕西师范大学 | A kind of ABS plastic paint remover and stripping method thereof |
| CN104479443A (en) * | 2014-11-28 | 2015-04-01 | 李国金 | Environment-friendly paint remover and preparation method thereof |
| CN106519781A (en) * | 2016-11-15 | 2017-03-22 | 广东石油化工学院 | Preparation method and use of powdery coating removal composition |
| CN106519781B (en) * | 2016-11-15 | 2020-01-03 | 广东石油化工学院 | Powder coating paint removing composition and preparation method and application thereof |
| WO2019168919A1 (en) * | 2018-02-28 | 2019-09-06 | The University Of Massachusetts | Composition and method for removing a coating from a surface |
| US12157833B2 (en) | 2018-02-28 | 2024-12-03 | The University Of Massachusetts | Composition and method for removing a coating from a surface |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0117517D0 (en) | 2001-09-12 |
| GB2377710B (en) | 2005-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20120718 |