US4517248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for applying a coating composition to a substrate, and the coated substrate thus obtained
Assignee: Akzo NV
•
Filing: 1983-12-29
•
Granted: 1985-05-14
•
Expires: 2003-12-29
Abstract
Abstract A process is provided for cleaning a substrate and providing it with a durable corrosion protecting coating by subjecting a part of the substrate to a blasting treatment and simultaneously hitting the same part of the substrate by a stream of a film forming binder. Structures in a marine environment can thus be provided with a durable coating in one combined operation of cleaning and coating. The invention also relates to the substrate thus obtained.
Inventors
- 👤 Leendert A. Kik
- 👤 Pieter H. J. Schuurink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:05
CPC Classifications
B; B05; B05B; B05B11/00; B05D; B05D1/00; B05D1/28; B05D1/02; B05D1/34; B05D3/00; B05D3/12; B05D7/00; B05D7/14; B05D2202/00; B05D2202/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A process for applying a coating composition to an iron-containing metal substrate, comprising: cleaning the metal substrate by means of an abrasive blasting treatment in which the metal substrate is hit by a stream containing abrasive blasting particles, said stream comprising a stream of gas emanating from a blast nozzle at a pressure in the range of 2 to 10 bar and at a feed rate of 0.1 to 12 m 3 /min; and applying a coating composition comprising a film-forming binder to the metal substrate by means of a coating treatment in which the metal substrate is hit with a stream of the film-forming binder simultaneously with the abrasive blasting treatment, said film-forming binder being selected from the group consisting of thermohardening, thermoplastic and elastomeric film-forming binders.
Claim 2
Dependent Claim
128 words
A process for applying a coating composition to an iron-containing metal substrate, comprising: cleaning the metal substrate by means of an abrasive blasting treatment in which the metal substrate is hit by a stream containing abrasive blasting particles, said stream comprising a stream of gas emanating from a blast nozzle at a pressure in the range of 2 to 10 bar and at a feed rate of 0.1 to 12 m 3 /min; and applying a coating composition comprising a film-forming binder to the metal substrate by means of a coating treatment in which the metal substrate is hit with a stream of the film-forming binder simultaneously with the abrasive blasting treatment, said film-forming binder being selected from the group consisting of thermohardening, thermoplastic and elastomeric film-forming binders.
Claim 3
Dependent Claim
24 words
The process of claim 1, wherein the stream of binder and the stream of blasting particles are joined before the latter hits the substrate.
Claim 4
Dependent Claim
18 words
The process of claim 2, wherein the stream of binder is injected into the stream of blasting particles.
Claim 5
Dependent Claim
26 words
The process of claim 1, wherein the stream of binder also contains a component selected from the class consisting of an orgainic dispersing agent and water.
Claim 6
Dependent Claim
15 words
The process of claim 1, wherein the stream of binder is applied by airless spraying.
Claim 7
Dependent Claim
25 words
The process of claim 1, wherein the blasting particles are enveloped in a component selected from the class consisting of a pigment and an additive.
Claim 8
Dependent Claim
16 words
The process of claim 6, wherein the blasting particles are enveloped in a corrosion inhibiting compound.
Claim 9
Dependent Claim
25 words
The process of claim 1, wherein the blasting particles are mixed with a component selected from the class consisting of a pigment and an additive.
Claim 10
Dependent Claim
24 words
The process of claim 1, wherein the stream of binder contains a component selected from the class consisting of a pigment and an additive.
Claim 11
Dependent Claim
9 words
A substrate coated by the process of claim 1.
References Cited (Backward Citations)
US2723204A
Cited
US2754228A
Cited
US3168411A
Cited
US3326098A
Cited
US3676197A
Cited
US3754976A
Cited
US4244989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |