Patent US2626674A successfully refreshed from Google Patents.
Patent US4370382A successfully refreshed from Google Patents.
US4370382A
Expired / Lapsed
US
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Modified zinc-rich coatings
Assignee: InChem Corp
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Filing: 1980-06-19
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Granted: 1983-01-25
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Expires: 2000-06-19
Abstract
Abstract A zinc-rich coating for use on metallic substrates contains particulate zinc, thermoplastic polyhydroxyether and zinc phosphosilicate.
Inventors
- 👤 George A. Salensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:07
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/10; C09D5/106; C09D171/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
Corrosion resistant article comprising a metallic substrate and adhering thereto as a coating a composition comprising: (A) a thermoplastic polyhydroxyether reaction product of substantially equimolar amounts of a polynuclear dihydric phenol and epichlorohydrin, said thermoplastic polyhydroxyether having a degree of polymerization of at least about 80; (B) about 300 to about 1100 parts by weight, per 100 parts of polyhydroxyether, of zinc pigment; (C) about 80 to about 300 parts by weight, per 100 parts of polyhydroxyether, of zinc phosphosilicate; (D) 0 to about 35 parts by weight, per 100 parts of polyhydroxyether, of a heat hardened resole phenol-aldehyde condensation resin; and (E) 0 to about 15 parts by weight, per 100 parts of polyhydroxyether, of a suspending agent.
Claim 2
Dependent Claim
119 words
Corrosion resistant article comprising a metallic substrate and adhering thereto as a coating a composition comprising: (A) a thermoplastic polyhydroxyether reaction product of substantially equimolar amounts of a polynuclear dihydric phenol and epichlorohydrin, said thermoplastic polyhydroxyether having a degree of polymerization of at least about 80; (B) about 300 to about 1100 parts by weight, per 100 parts of polyhydroxyether, of zinc pigment; (C) about 80 to about 300 parts by weight, per 100 parts of polyhydroxyether, of zinc phosphosilicate; (D) 0 to about 35 parts by weight, per 100 parts of polyhydroxyether, of a heat hardened resole phenol-aldehyde condensation resin; and (E) 0 to about 15 parts by weight, per 100 parts of polyhydroxyether, of a suspending agent.
Claim 3
Dependent Claim
12 words
Article claimed in claim 1 wherein the polynuclear dihydric phenol is 2,2-bis(4-hydroxyphenyl)propane.
Claim 4
Dependent Claim
106 words
Coating composition comprising: (A) a thermoplastic polyhydroxyether reaction product of substantially equimolar amounts of a polynuclear dihydric phenol and epichlorohydrin, said thermoplastic polyhydroxyether having a degree of polymerization of at least about 80; (B) about 300 to about 1100 parts by weight, per 100 parts of polyhydroxyether, of zinc pigment; (C) about 80 to about 300 parts by weight, per 100 parts of polyhydroxyether, of zinc phosphosilicate; (D) 0 to about 35 parts by weight, per 100 parts of polyhydroxyether, of a heat hardened resole phenol-aldehyde condensation resin; and (E) 0 to about 15 parts by weight, per 100 parts of polyhydroxyether, of a suspending agent.
Claim 5
Dependent Claim
106 words
Coating composition comprising: (A) a thermoplastic polyhydroxyether reaction product of substantially equimolar amounts of a polynuclear dihydric phenol and epichlorohydrin, said thermoplastic polyhydroxyether having a degree of polymerization of at least about 80; (B) about 300 to about 1100 parts by weight, per 100 parts of polyhydroxyether, of zinc pigment; (C) about 80 to about 300 parts by weight, per 100 parts of polyhydroxyether, of zinc phosphosilicate; (D) 0 to about 35 parts by weight, per 100 parts of polyhydroxyether, of a heat hardened resole phenol-aldehyde condensation resin; and (E) 0 to about 15 parts by weight, per 100 parts of polyhydroxyether, of a suspending agent.
Claim 6
Dependent Claim
17 words
Composition claimed in claim 3 containing about 110 to about 220 parts by weight of zinc phosphosilicate.
Claim 7
Dependent Claim
19 words
Composition claimed in claim 3 containing about 20 to about 30 parts by weight of resole phenol-aldehyde condensation resin.
Claim 8
Dependent Claim
18 words
Composition claimed in claim 1 containing about 5 to about 10 parts by weight of a suspending agent.
Claim 9
Dependent Claim
12 words
Composition claimed in claim 1 wherein the polynuclear dihydric phenol is 2,2-bis(4-hydroxyphenyl)propane.
Claim 10
Dependent Claim
10 words
Composition claimed in claim 1 dissolved in a glycol ester.
Claim 11
Dependent Claim
12 words
Composition claimed in claim 8 wherein the glycol ester is Cellosolve acetate.
Claim 12
Dependent Claim
35 words
Composition claimed in claim 1 dissolved in a mixture of an aliphatic ketone containing 3 to 6 carbons, an aromatic hydrocarbon containing 7 to 9 carbons and an aliphatic alcohol containing 3 to 5 carbons.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |