Patent US4400487A successfully refreshed from Google Patents.
US4400487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textured fluorocarbon coating compositions
Assignee: PPG Industries Ohio Inc
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Filing: 1981-12-31
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Granted: 1983-08-23
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Expires: 2001-12-31
Abstract
Abstract A coating composition useful for providing a substrate with a coating having a textured appearance is composed of, on a resin solids basis, a resinous mixture of: (a) from about 40 percent to about 85 percent by weight of a film-forming fluorocarbon resin having a particle size of from about 0.1 microns to about 5 microns; (b) from 0 percent to about 50 percent by weight of an acrylic resin selected from polymers and copolymers of acrylic acid or methacrylic acid esters and copolymers of acrylic monomers containing hydroxyl or amide groups; and (c) from about 3 percent to about 50 percent by weight of particulate fluorocarbon resin having a particle size ranging from about 20 microns to about 3500 microns, said particulate fluorocarbon resin being fused with the film-forming fluorocarbon resin upon curing to provide said textured appearance. The aforesaid coating composition can be either a clear or pigment coating composition.
Inventors
- 👤 Richard L. Stoneberg
- 👤 Raymond R. Stec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:22
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D127/16; C08; C08L; C08L2205/00; C08L2205/02; C08L2205/14; C08L2205/18; C08L27/00; C08L27/02; C08L27/12; C08L33/00; C08L33/04; C08L33/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
A coating composition useful for providing a substrate with a coating having a textured appearance, comprising, on a resin solids basis, a resinous mixture of: (a) from about 40 percent to about 85 percent by weight of a film-forming fluorocarbon resin having a particle size of from about 0.1 microns to about 5 microns; (b) from 0 percent to about 50 percent by weight of a thermoplastic acrylic resin selected from homoplymers and copolymers of acrylic acid esters or methacrylic acid esters and thermosetting copolymers of acrylic monomers containing hydroxyl or amide groups; and (c) from about 3 percent to about 50 percent by weight of a particulate fluorocarbon resin having a particle size ranging from about 20 microns to about 3500 microns, said particulate fluorocarbon resin being fused with the film-forming fluorocarbon resin upon curing to provide said textured appearance.
Claim 2
Dependent Claim
141 words
A coating composition useful for providing a substrate with a coating having a textured appearance, comprising, on a resin solids basis, a resinous mixture of: (a) from about 40 percent to about 85 percent by weight of a film-forming fluorocarbon resin having a particle size of from about 0.1 microns to about 5 microns; (b) from 0 percent to about 50 percent by weight of a thermoplastic acrylic resin selected from homoplymers and copolymers of acrylic acid esters or methacrylic acid esters and thermosetting copolymers of acrylic monomers containing hydroxyl or amide groups; and (c) from about 3 percent to about 50 percent by weight of a particulate fluorocarbon resin having a particle size ranging from about 20 microns to about 3500 microns, said particulate fluorocarbon resin being fused with the film-forming fluorocarbon resin upon curing to provide said textured appearance.
Claim 3
Dependent Claim
83 words
The composition of claim 1, wherein: (a) the film-forming fluorocarbon resin is present in an amount of from about 40 percent to about 85 percent by weight; (b) the acrylic resin is present in an amount of from about 10 percent to about 50 percent by weight; and (c) the particulate fluorocarbon resin is present in an amount of from about 3 percent to about 25 percent by weight and has a particle size of from about 25 microns to about 250 microns.
Claim 4
Dependent Claim
15 words
The composition of claim 1 or 2 wherein the film-forming fluorocarbon resin is polyvinylidine fluoride.
Claim 5
Dependent Claim
13 words
The composition of claim 3 wherein the particulate fluorocarbon resin is polyvinylidine fluoride.
Claim 6
Dependent Claim
14 words
The composition of claim 4 wherein the acrylic resin is a thermoplastic acrylic resin.
Claim 7
Dependent Claim
18 words
The composition of claim 5 wherein the acrylic resin is a copolymer of methyl methacrylate and ethyl acrylate.
Claim 8
Dependent Claim
23 words
The composition of claim 6 wherein the film-forming fluorocarbon resin has a particle size of from about 0.2 microns to about 0.4 microns.
Claim 9
Dependent Claim
23 words
The composition of claim 7 wherein the particulate fluorocarbon resin has a particle size of from about 50 microns to about 150 microns.
Claim 10
Dependent Claim
12 words
The composition of claim 8 wherein the composition additionally contains a pigment.
Claim 11
Dependent Claim
56 words
The composition of claim 8 wherein the composition, on a resin solids basis, comprises: (a) from about 55 percent to about 75 percent of the film-forming fluorocarbon resin; (b) from about 20 percent to about 40 percent of the acrylic resin; and (c) from about 5 percent to about 16 percent of the particulate fluorocarbon resin.
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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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |