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US4565716A Expired / Lapsed US ⏱️ 0.0 years remaining

Water resistant aluminum particles and coating

Assignee: Silberline Manufacturing Co Inc
•
Filing: 1983-07-05
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Granted: 1986-01-21
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Expires: 2003-07-05
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Abstract

Abstract Metal particles, e.g. aluminum, are treated with ionic organic phosphate, being thereby transformed to a state capable of resisting attack from an aqueous medium. The treated particles may be incorporated into a water-borne coating.

Inventors

  • 👤 James E. Williams, Jr.
  • 👤 Pamela L. Claassen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 19:38
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/38; C09C; C09C1/00; C09C1/62; C09C1/64; C09C1/644; C09D17/00; C09D17/004; C09D17/006; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/60; C01P2006/80; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 200 words
A composition of matter which comprises metal particles which include compound of the formulae of FIGS. 1A, 1B or 1C in an effective concentration to retard the reaction of the metal with water, thereby inhibiting the evolution of hydrogen gas, where in said formulae, X=1 or 2, Y=1 or 2, and X+Y=3; where Z is hydrogen or means for neutralizing acid phosphate; and where R is benzo, a halo group, an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 20 carbon atoms, an aryl group having from 6 to 40 carbon atoms, a halo substituted aryl group wherein said aryl has from 6 to 40 carbon atoms, an alpha or beta naphthyl, a halo substituted alpha or beta naphthyl, a 3 to 20 carbon atom cycloalkyl substituted alpha or beta naphthyl, an alpha or beta alkyl substituted naphthyl wherein said alkyl has from 1 to 24 carbon atoms, a heterosubstituent substituted aryl wherein said aryl has from 6 to 40 carbon atoms, and said heterosubstituent is selected from the group consisting of CN, NO 2 , COOH, CHO, OH, a pyridinyl, an alpha or beta furyl, or an alpha or beta thienyl.
Claim 2
Dependent Claim 200 words
A composition of matter which comprises metal particles which include compound of the formulae of FIGS. 1A, 1B or 1C in an effective concentration to retard the reaction of the metal with water, thereby inhibiting the evolution of hydrogen gas, where in said formulae, X=1 or 2, Y=1 or 2, and X+Y=3; where Z is hydrogen or means for neutralizing acid phosphate; and where R is benzo, a halo group, an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 20 carbon atoms, an aryl group having from 6 to 40 carbon atoms, a halo substituted aryl group wherein said aryl has from 6 to 40 carbon atoms, an alpha or beta naphthyl, a halo substituted alpha or beta naphthyl, a 3 to 20 carbon atom cycloalkyl substituted alpha or beta naphthyl, an alpha or beta alkyl substituted naphthyl wherein said alkyl has from 1 to 24 carbon atoms, a heterosubstituent substituted aryl wherein said aryl has from 6 to 40 carbon atoms, and said heterosubstituent is selected from the group consisting of CN, NO 2 , COOH, CHO, OH, a pyridinyl, an alpha or beta furyl, or an alpha or beta thienyl.
Claim 3
Dependent Claim 70 words
A composition of matter as claimed in claim 1 which comprises aluminum particles which include compound of the formula of FIG. 2 in an effective concentration to retard the reaction of the aluminum with water, thereby inhibiting the evolution of hydrogen gas, where, in said formula, K=0 to 5, L=0 to 4, M=0 to 4, L+M=4, where R'=C.sub.n' H.sub.2n'+1, n'=1 to 20, and where R"=C.sub.n" H.sub.2n"+ 1 n"=1 to 20.
Claim 4
Dependent Claim 18 words
A composition of matter as claimed in claim 2, wherein said compound has the formula of FIG. 3.
Claim 5
Dependent Claim 18 words
A composition of matter as claimed in claim 3, wherein said compound has the formula of FIG. 4.
Claim 6
Dependent Claim 25 words
A composition of matter of claim 2, wherein said aluminum particles have a surface area of from about 0.05 to about 15 m 2 /gm.
Claim 7
Dependent Claim 14 words
A composition of matter as claimed in claim 2 wherein the particles comprise flakes.
Claim 8
Dependent Claim 17 words
A composition of matter as claimed in claim 1, further comprising a compatible liquid and a surfactant.
Claim 9
Independent Claim 198 words
A method which comprises contacting metal particles with compound of the formulae of FIGS. 1A, 1B or 1C in an effective concentration to retard the reaction of the metal with water, thereby inhibiting the evolution of hydrogen gas, where in said formulae, X=1 or 2, Y=1 or 2, and X+Y=3; where Z is hydrogen or means for neutralizing acid phosphate; and where R is benzo, a halo group, an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 20 carbon atoms, an aryl group having from 6 to 40 carbon atoms, a halo substituted aryl group wherein said aryl has from 6 to 40 carbon atoms, an alpha or beta naphthyl, a halo substituted alpha or beta naphthyl, a 3 to 20 carbon atom cycloalkyl substituted alpha or beta naphthyl, an alpha or beta alkyl substituted naphthyl wherein said alkyl has from 1 to 24 carbon atoms, a heterosubstituent substituted aryl wherein said aryl has from 6 to 40 carbon atoms, and said heterosubstituent is selected from the group consisting of CN, NO 2 , COOH, CHO, OH, a pyridinyl, an alpha or beta furyl, or an alpha or beta thienyl.
Claim 10
Independent Claim 198 words
A method which comprises contacting metal particles with compound of the formulae of FIGS. 1A, 1B or 1C in an effective concentration to retard the reaction of the metal with water, thereby inhibiting the evolution of hydrogen gas, where in said formulae, X=1 or 2, Y=1 or 2, and X+Y=3; where Z is hydrogen or means for neutralizing acid phosphate; and where R is benzo, a halo group, an alkyl group having from 1 to 24 carbon atoms, a cycloalkyl group having from 3 to 20 carbon atoms, an aryl group having from 6 to 40 carbon atoms, a halo substituted aryl group wherein said aryl has from 6 to 40 carbon atoms, an alpha or beta naphthyl, a halo substituted alpha or beta naphthyl, a 3 to 20 carbon atom cycloalkyl substituted alpha or beta naphthyl, an alpha or beta alkyl substituted naphthyl wherein said alkyl has from 1 to 24 carbon atoms, a heterosubstituent substituted aryl wherein said aryl has from 6 to 40 carbon atoms, and said heterosubstituent is selected from the group consisting of CN, NO 2 , COOH, CHO, OH, a pyridinyl, an alpha or beta furyl, or an alpha or beta thienyl.
Claim 11
Dependent Claim 86 words
A method as claimed in claim 8 which comprises contacting aluminum particles with a compound of the formula of FIG. 2 in an effective concentration to retard the reaction of the aluminum with water, thereby inhibiting the evolution of hydrogen gas, where X=1 or 2, Y=1 or 2, and X+Y=3; where K=0 to 5, L=0 to 4, M=0 to 4, L+M=4, preferably L=2, M=2; where R'C.sub.n' H.sub.2n'+1, n'=1 to 20, preferably n'=8 where R"=C.sub.n" H.sub.2n"+ 1, n"=1 to 20, preferably n"=2, R"=C 2 H 5 .
Claim 12
Dependent Claim 27 words
A method as claimed in claim 9, further comprising, following contacting, an aging step for developing the ability of the aluminum particles to resist reaction with water.
Claim 13
Dependent Claim 14 words
A method as claimed in claim 10, said aging being for about two weeks.
Claim 14
Dependent Claim 15 words
A method as claimed in claim 9, the contacting being by the cake reduction method.
Claim 15
Dependent Claim 16 words
A method as claimed in claim 9, wherein said compound has the formula of FIG. 3.
Claim 16
Dependent Claim 16 words
A method as claimed in claim 13, wherein said compound has the formula of FIG. 4.
Claim 17
Dependent Claim 19 words
A metal-particle coating formulation, wherein the metal particles therein comprise a composition of matter as claimed in claim 1.
Claim 18
Dependent Claim 16 words
A coating formulation as claimed in claim 15, said coating formulation being a water-borne coating formulation.
Claim 19
Dependent Claim 15 words
A coating formulation as claimed in claim 15, wherein the metal particles comprise aluminum particles.
Claim 20
Dependent Claim 23 words
A method of using a composition of matter as claimed in claim 1, comprising incorporating said composition of matter in a coating formulation.
Claim 21
Dependent Claim 15 words
A method as claimed in claim 18, said coating formulation being a water-borne coating formulation.
Claim 22
Dependent Claim 15 words
A method as claimed in claim 18, wherein said composition of matter comprises aluminum particles.
Claim 23
Dependent Claim 24 words
A paste comprising a major amount of a composition of matter as claimed in claim 1 and a minor amount of a compatible liquid.
Claim 24
Dependent Claim 19 words
A method of using a paste as claimed in claim 21, comprising incorporating said paste in a coating formulation.
Claim 25
Dependent Claim 15 words
A method as claimed in claim 22, said coating formulation being a water-borne coating formulation.

References Cited (Backward Citations)

US2858230A Cited
US2903393A Cited
US3181962A Cited
US3264129A Cited
US3918984A Cited
US4350535A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-01-20 1989-07-22 1990-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-01-20 1993-07-22 1994-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-01-20 1997-07-22 1998-01-21 $7700.00 Window Closed / Lapsed

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