US4098749A
Expired / Lapsed
US
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Anticorrosion primer coating composition
Assignee: Dai Nippon Toryo Co Ltd
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Filing: 1977-03-24
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Granted: 1978-07-04
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Expires: 1997-03-24
Abstract
Abstract The present invention relates to an anticorrosion primer coating composition comprising (i) a polyvinyl butyral resin, (ii) an organo functional silane, (iii) at least one member selected from the group consisting of inorganic borate compounds and polyphosphate compounds, and (iv) phosphoric acid.
Inventors
- 👤 Minoru Hoshino
- 👤 Toshio Shinohara
- 👤 Yukio Kawahara
- 👤 Katsuji Takase
- 👤 Toshimoto Tsuji
- 👤 Jun-ichi Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:20
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/12; C08; C08K; C08K3/00; C08K3/32; C08K3/38; C08K5/00; C08K5/54; C09D129/00; C09D129/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
184 words
An anticorrosion primer coating composition comprising (i) 100 parts by weight of a polyvinyl butyral resin, (ii) 1 to 25 parts by weight of at least one organo functional silane selected from the group consisting of aminoalkoxysilane compounds represented by the following general formula: ##STR4## wherein R 1 stands for a divalent hydrocarbon group having 1 to 4 carbon atoms, R 2 and R 3 represent a monovalent hydrocarbon group having 1 to 4 carbon atoms, Z stands for a hydrogen atom or an aminoalkyl group, and m is 1 or 0, and alkylalkoxysilane compounds represented by the following general formula: ##STR5## wherein R 4 stands for a divalent hydrocarbon group having 1 to 4 carbon atoms, R 5 and R 6 represent a monovalent hydrocarbon group having 1 to 4 carbon atoms, Q stands for a methacryloxy, acryloxy, glycidoxy or epoxycyclohexyl group, and n is 1 or 0. (iii) 20 to 350 parts by weight of at least one member selected from the group consisting of inorganic borate compounds and polyphosphate compounds and (iv) 5 to 50 parts by weight of phosphoric acid.
Claim 2
Dependent Claim
184 words
An anticorrosion primer coating composition comprising (i) 100 parts by weight of a polyvinyl butyral resin, (ii) 1 to 25 parts by weight of at least one organo functional silane selected from the group consisting of aminoalkoxysilane compounds represented by the following general formula: ##STR4## wherein R 1 stands for a divalent hydrocarbon group having 1 to 4 carbon atoms, R 2 and R 3 represent a monovalent hydrocarbon group having 1 to 4 carbon atoms, Z stands for a hydrogen atom or an aminoalkyl group, and m is 1 or 0, and alkylalkoxysilane compounds represented by the following general formula: ##STR5## wherein R 4 stands for a divalent hydrocarbon group having 1 to 4 carbon atoms, R 5 and R 6 represent a monovalent hydrocarbon group having 1 to 4 carbon atoms, Q stands for a methacryloxy, acryloxy, glycidoxy or epoxycyclohexyl group, and n is 1 or 0. (iii) 20 to 350 parts by weight of at least one member selected from the group consisting of inorganic borate compounds and polyphosphate compounds and (iv) 5 to 50 parts by weight of phosphoric acid.
Claim 3
Dependent Claim
41 words
An anticorrosion primer coating composition as set forth in claim 1 wherein the component (iii) is a mixture of a borate compound and a polyphosphate compound in which the mixing weight ratio is in the range of from 1/9 to 9/1.
Claim 4
Dependent Claim
30 words
An anticorrosion primer coating composition as set forth in claim 1 wherein the component (ii) is at least one member selected from the group consisting of β-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane and γ-methacryloxypropyltrimethoxysilane.
Claim 5
Dependent Claim
39 words
An anticorrosion primer coating composition as set forth in claim 1 wherein the borate compound is at least one member selected from the group consisting of barium metaborate, zinc borate, sodium tetraborate, barium tetraborate, magnesium metaborate and aluminum orthoborate.
Claim 6
Dependent Claim
33 words
An anticorrosion primer coating composition as set forth in claim 1 wherein the polyphosphate compound is at least one member selected from the group consisting of aluminum polyphosphate, zinc polyphosphate and calcium polyphosphate.
Claim 7
Dependent Claim
24 words
An anticorrosion primer coating composition as set forth in claim 1 which further comprises up to 200 parts by weight of a phenolic resin.
Claim 8
Dependent Claim
24 words
An anticorrosion primer coating composition as set forth in claim 6 which further comprises 10 to 130 parts by weight of a metal powder.
Claim 9
Dependent Claim
33 words
An anticorrosion primer coating composition as set forth in claim 7 wherein the metal powder is at least one member selected from the group consisting of powders of metallic aluminum and aluminum alloys.
Claim 10
Dependent Claim
24 words
An anticorrosion primer coating composition as set forth in claim 1 which further comprises 10 to 130 parts by weight of a metal powder.
Claim 11
Dependent Claim
32 words
An anticorrosion primer coating composition as set forth in claim 9 wherein metal powder is at least one member selected from the group consisting of powders of metallic aluminum and aluminum alloys.
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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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |