Patent US4617057A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4617057A Expired / Lapsed US ⏱️ 0.0 years remaining

Oil and water repellent coating compositions

Assignee: Dow Silicones Corp
•
Filing: 1985-06-04
•
Granted: 1986-10-14
•
Expires: 2005-06-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An oil and water repellent coating composition is disclosed. The composition comprises a blend of an aminoorganosilane, a perfluorinated organic compound and a resin selected from the group consisting of colloidal inorganic-based siloxane resin, poly (dialkylsiloxane)-monoorgano substituted silsesquioxane block copolymer, acrylic polymer and copolymer, ethylene-vinyl acetate latex and styrene-butadiene latex. The silane and perfluorinated organic, combined, constitute from 0.1% to 10% by weight of the total resin solids in a solution or suspension of the blend. A method of coating a smooth substrate or treating a fabric to render the respective surface oleophobic and hydrophobic is further disclosed.

Inventors

  • 👤 Edwin P. Plueddemann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:44
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; C09D183/06; C09D109/00; C09D109/06; C09D109/08; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C09D7/00; C09D7/40; C09D7/60; C09D7/63; C09K; C09K3/00; C09K3/18; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/327; D06M15/333; D06M15/37; D06M15/643; D06M15/6436; D06M15/693; C08; C08K; C08K5/00; C08K5/02; C08K5/54; C08K5/544; C08K5/5477

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 229 words
An oil and water repellent coating composition, comprising: (a) a resin, selected from the group consisting of colloidal inorganic-based siloxane resin, poly(dialkylsiloxane)monoorgano substituted silsesquioxane block copolymer, acrylic polymer and copolymer, ethylene-vinyl acetate latex and styrene-butadiene latex, (b) an aminoorganosilane of the general formula ##STR8## wherein R 1 is selected from the group consisting of hydrogen, alkyl of one to four carbon atoms or ##STR9## R 2 is an alkylene group of two to four carbon atoms, R 3 is hydrogen or alkyl of one to four carbon atoms, R 4 is an alkylene group of three to four carbon atoms, R 5 and R 6 are alkyl groups of one to four carbon atoms each, n is zero to four and m is zero or one; and (c) a perfluorinated organic compound of the general formula: R.sub.f Y wherein R f is a perfluoroalkyl group of four to 18 carbon atoms and Y is selected from the group consisting of --COOH, --COOR, wherein R is alkyl, alkoxyalkyl or hydroxyalkyl of one to eight carbon atoms; wherein the combined amount of the aminoorganosilane and the perfluorinated organic compound comprises between about 0.1 and about 10 percent by weight of said resin and the molar ratio of the perfluorinated organic compound to the sum of primary and secondary amine group(s) in the aminoorganosilane is fixed between about 0.33 and about 1.0.
Claim 2
Dependent Claim 229 words
An oil and water repellent coating composition, comprising: (a) a resin, selected from the group consisting of colloidal inorganic-based siloxane resin, poly(dialkylsiloxane)monoorgano substituted silsesquioxane block copolymer, acrylic polymer and copolymer, ethylene-vinyl acetate latex and styrene-butadiene latex, (b) an aminoorganosilane of the general formula ##STR8## wherein R 1 is selected from the group consisting of hydrogen, alkyl of one to four carbon atoms or ##STR9## R 2 is an alkylene group of two to four carbon atoms, R 3 is hydrogen or alkyl of one to four carbon atoms, R 4 is an alkylene group of three to four carbon atoms, R 5 and R 6 are alkyl groups of one to four carbon atoms each, n is zero to four and m is zero or one; and (c) a perfluorinated organic compound of the general formula: R.sub.f Y wherein R f is a perfluoroalkyl group of four to 18 carbon atoms and Y is selected from the group consisting of --COOH, --COOR, wherein R is alkyl, alkoxyalkyl or hydroxyalkyl of one to eight carbon atoms; wherein the combined amount of the aminoorganosilane and the perfluorinated organic compound comprises between about 0.1 and about 10 percent by weight of said resin and the molar ratio of the perfluorinated organic compound to the sum of primary and secondary amine group(s) in the aminoorganosilane is fixed between about 0.33 and about 1.0.
Claim 3
Dependent Claim 12 words
A composition in accordance with claim 1 wherein said aminoorganosilane is N-beta-aminoethyl-gamma-aminopropyltrimethoxysilane.
Claim 4
Dependent Claim 20 words
A composition in accordance with claim 2 wherein said perfluoroalkyl group, R f , has six to twelve carbon atoms.
Claim 5
Dependent Claim 19 words
A composition in accordance with claim 3 wherein said perfluoroalkyl group, R f has seven to nine carbon atoms.
Claim 6
Dependent Claim 20 words
A composition in accordance with claim 1 wherein said perfluoroalkyl group, R f , has seven to nine carbon atoms.
Claim 7
Dependent Claim 16 words
A composition in accordance with claim 4 wherein said resin is a colloidal inorganic-based siloxane resin.
Claim 8
Dependent Claim 25 words
A composition in accordance with claim 6 wherein said blend of perfluorinated organic compound and aminoorganosilane constitutes 1 to 3% by weight of said resin.
Claim 9
Dependent Claim 18 words
A composition in accordance with claim 4 wherein said resin is a block copolymer of poly(dimethylsiloxane) and phenylsilsesquioxane.
Claim 10
Dependent Claim 33 words
A composition in accordance with claim 8 wherein said resin is a block copolymer of about 70 mole percent poly(dimethylsiloxane) and about 30 mole percent phenylsilsesquioxane which has been capped with methyldimethoxysiloxy groups.
Claim 11
Dependent Claim 27 words
A composition in accordance with claim 9 wherein said blend of perfluorinated organic compound and aminoorganosilane constitute from 1% to 2% by weight of said resin solids.
Claim 12
Dependent Claim 17 words
A composition in accordance with claim 4 wherein, said resin is a thermosetting acrylic polymer or copolymer.
Claim 13
Dependent Claim 17 words
A composition in accordance with claim 4 wherein said resin is a thermoplastic acrylic polymer or copolymer.
Claim 14
Dependent Claim 17 words
A composition in accordance with claim 4 wherein said resin is a thermoplastic ethylene-vinyl acetate copolymer latex.
Claim 15
Dependent Claim 16 words
A composition in accordance with claim 4 wherein said resin is a thermoplastic styrene-butadiene copolymer latex.
Claim 16
Dependent Claim 28 words
The method of applying the composition of claim 1 to a solid or fabric substrate, whereby an oil and water repellent surface coating is provided to said substrate.

References Cited (Backward Citations)

US3317629A Cited
US3681266A Cited
US4070152A Cited
JPS58142958A Cited
US4410563A Cited
JPS58147483A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-13 1990-04-14 1990-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-13 1994-04-14 1994-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-13 1998-04-14 1998-10-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag