US5308647A
Expired / Lapsed
US
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Liquid spray masking composition and method
Assignee: 3M Co
•
Filing: 1992-10-13
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Granted: 1994-05-03
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Expires: 2012-10-13
Abstract
Abstract An improved liquid spray masking composition including an effective amount of a non-volatile polyhydroxy component is provided. The preferred polyhydroxy components comprise polyglycerols, especially triglycerols or larger polyglycerols. The presence of such materials in masking compositions improves performance of the compositions with respect to inhibition of high temperature swelling, blistering or spotting of the painted surface to which it is applied.
Inventors
- 👤 Larry R. Lappi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:57
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/32; B05D1/322; B05D1/327; C; C09; C09D; C09D5/00; C09D5/008
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
94 words
A masking composition for application to an area of a surface to protect said area from paint overspray; said masking composition comprising: (a) an amount of surfactant effective to promote wetting and detergency of said surface and leveling of said masking composition; and (b) at least 1% by weight based on total weight of said masking composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30 inclusive, provided that m +n is greater than or equal to 2.
Claim 2
Dependent Claim
94 words
A masking composition for application to an area of a surface to protect said area from paint overspray; said masking composition comprising: (a) an amount of surfactant effective to promote wetting and detergency of said surface and leveling of said masking composition; and (b) at least 1% by weight based on total weight of said masking composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30 inclusive, provided that m +n is greater than or equal to 2.
Claim 3
Dependent Claim
14 words
The masking composition according to claim 1, wherein m+n is 3 to 10 inclusive.
Claim 4
Dependent Claim
23 words
The masking composition according to claim 1, further comprising at least 10% by weight glycerol based on total weight of said masking composition.
Claim 5
Dependent Claim
35 words
The masking composition according to claim 1, wherein said surfactant is selected from the group consisting of fatty acid alkanolamides, fatty acid esters of glycerol, fatty acid esters of polyglycerol, fluorocarbon surfactants, and mixtures thereof.
Claim 6
Dependent Claim
64 words
The masking composition according to claim 1, further comprising an amount of film forming thickener effective to maintain said masking composition as a sag-resistant, overspray-resistant continuous film and selected from the group consisting of: hydroxyethylcellulose hydroxypropylcellulose, hydroxypropylmethyl cellulose, sodium carboxymethyl cellulose, glyactomanine, guar gum, agar, algin, carrageenan, gum arabic, gum tragacanth, karaya gum, locust bean gum, pectin, microbial polysaccharides, polyvinyl alcohols, and mixtures thereof.
Claim 7
Dependent Claim
33 words
The masking composition according to claim 1, further comprising an amount of film forming thickener effective to maintain said masking composition as a sag-resistant, overspray-resistant continuous film, wherein said thickener comprises xanthan gum.
Claim 8
Dependent Claim
24 words
The masking composition according to claim 11, further comprising at least 70% by weight water therein based on total weight of said masking composition.
Claim 9
Dependent Claim
27 words
The masking composition according to claim 7, further comprising at least about 0.05% by weight of film forming thickener based on total weight of said masking composition.
Claim 10
Dependent Claim
24 words
The masking composition according to claim 1, further comprising at least about 10% by weight glycerol based on total weight of said masking composition.
Claim 11
Dependent Claim
89 words
A masking composition for application to an area of a surface to protect said area from paint overspray; said masking composition comprising: (a) at least 10% by weight glycerol based on total weight of said masking composition; and (b) at least 1% by weight based on total weight of said masking composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 12
Dependent Claim
89 words
A masking composition for application to an area of a surface to protect said area from paint overspray; said masking composition comprising: (a) at least 10% by weight glycerol based on total weight of said masking composition; and (b) at least 1% by weight based on total weight of said masking composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 13
Dependent Claim
14 words
The masking composition according to claim 1, wherein m+n is 3 to 10, inclusive.
Claim 14
Dependent Claim
64 words
The masking composition according to claim 10, further comprising an amount of film forming thickener effective to maintain said masking composition as a sag-resistant, overspray-resistant continuous film and selected from the group consisting of: hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethyl cellulose, sodium carboxymethyl cellulose, glyactomanine, guar gum, agar, algin, carrageenan, gum arabic, gum tragacanth, karaya gum, locust bean gum, pectin, microbial polysaccharides, polyvinyl alcohols, and mixtures thereof.
Claim 15
Dependent Claim
33 words
The masking composition according to claim 10, further comprising an amount of film forming thickener effective to maintain said masking composition as a sag-resistant, overspray-resistant continuous film, wherein said thickener comprises xanthan gum.
Claim 16
Dependent Claim
24 words
The masking composition according to claim 10, further comprising at least 70% by weight water therein based on total weight of said masking composition.
Claim 17
Dependent Claim
27 words
The masking composition according to claim 14, further comprising at least about 0.05% by weight of film forming thickener based on total weight of said masking composition.
Claim 18
Dependent Claim
26 words
The masking composition according to claim 14, further comprising at least at least about 0.01% by weight surfactant based on total weight of said masking composition.
Claim 19
Dependent Claim
27 words
The masking composition according to claim 14, further comprising an amount of biocide therein which is effective to inhibit microbial-induced degradation of said masking composition during storage.
Claim 20
Dependent Claim
14 words
The masking composition according to claim 10, wherein said oligomeric polyglycerol material comprises triglycerol.
Claim 21
Independent Claim
83 words
A method of masking a painted surface, comprising: applying a masking composition to said surface, and then drying said surface at a temperature at or above room temperature, wherein said masking composition comprises an amount of an oligomeric polyglycerol material effective to retard swelling, blistering and spotting in said surface according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2 .sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 22
Independent Claim
83 words
A method of masking a painted surface, comprising: applying a masking composition to said surface, and then drying said surface at a temperature at or above room temperature, wherein said masking composition comprises an amount of an oligomeric polyglycerol material effective to retard swelling, blistering and spotting in said surface according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2 .sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 23
Dependent Claim
42 words
A paint spray-booth coating composition comprising an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 24
Dependent Claim
42 words
A paint spray-booth coating composition comprising an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m +n is greater than or equal to 2.
Claim 25
Dependent Claim
118 words
A masking composition for application to an area of a vehicle to protect said area from paint overspray; said masking composition comprising: (a) a water carrier; (b) an amount of a film-forming thickener which is effective to maintain said masking composition as a sag-resistant, overspray-resistant, continuous film; (c) an amount of surfactant effective to promote wetting and detergency of said surface and leveling of said masking composition; and (d) at least 1% by weight based on total weight of said masking composition of a an oligomeric polyglycerol according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--Oh wherein m and n are each integers between 0 and 30, inclusive, provided that m+n is greater than or equal to 2.
Claim 26
Dependent Claim
118 words
A masking composition for application to an area of a vehicle to protect said area from paint overspray; said masking composition comprising: (a) a water carrier; (b) an amount of a film-forming thickener which is effective to maintain said masking composition as a sag-resistant, overspray-resistant, continuous film; (c) an amount of surfactant effective to promote wetting and detergency of said surface and leveling of said masking composition; and (d) at least 1% by weight based on total weight of said masking composition of a an oligomeric polyglycerol according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--Oh wherein m and n are each integers between 0 and 30, inclusive, provided that m+n is greater than or equal to 2.
Claim 27
Dependent Claim
23 words
The masking composition according to claim 21, further comprising at least 10% by weight glycerol based on total weight of said masking composition.
Claim 28
Dependent Claim
14 words
The masking composition according to claim 21, wherein said oligomeric polyglycerol material comprises triglycerol.
Claim 29
Dependent Claim
29 words
The masking composition according to claim 11, wherein said water carrier is contained in an amount of at least about 70% by weight based on total weight masking composition.
Claim 30
Dependent Claim
31 words
The masking composition according to claim 11, wherein said water carrier is contained in an amount of about 75 to 95% by weight based on total weight of said masking composition.
Claim 31
Dependent Claim
76 words
A paint spray-booth coating composition comprising: (a) at least 10% by weight glycerol based on total weight of said coating composition; and (b) a polyglycerol component comprising at least 1% by weight based on total weight of said coating composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m+n is greater than or equal to 2.
Claim 32
Dependent Claim
76 words
A paint spray-booth coating composition comprising: (a) at least 10% by weight glycerol based on total weight of said coating composition; and (b) a polyglycerol component comprising at least 1% by weight based on total weight of said coating composition of an oligomeric polyglycerol material according to the formula: H--[(OCH.sub.2 CHOHCH.sub.2).sub.n (OCH(CH.sub.2 OH)CH.sub.2).sub.m ]--OH wherein m and n are each integers between 0 and 30, inclusive, provided that m+n is greater than or equal to 2.
References Cited (Backward Citations)
US3124474A
Cited
CA750967A
Cited
US2835603A
Cited
US3114650A
Cited
DE2728464A1
Cited
JPS5342227A
Cited
GB1604562A
Cited
US4347266A
Cited
US4525501A
Cited
US4428984A
Cited
US4548967A
Cited
US4748049A
Cited
US4867792A
Cited
US4895599A
Cited
US5143949A
Cited
US4911218A
Cited
US5049609A
Cited
EP0405341A1
Cited
US5104711A
Cited
US5028350A
Cited
US5201946A
Cited
US5058648A
Cited
WO1992008555A1
Cited
US5186978A
Cited
US5186978B1
Cited
JPH04313366A
Cited
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