US3857852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crackle finish coating of arylene sulfide polymer containing a fluorocarbon polymer
Assignee: Phillips Petroleum Co
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Filing: 1972-10-19
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Granted: 1974-12-31
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Expires: 1992-10-19
Abstract
Abstract A decorative crackle arylene sulfide polymer coating is provided by first subjecting the arylene sulfide polymer and a light colored pigment such as titanium dioxide to intensive milling and thereafter mixing the resulting blend with a fluorocarbon polymer in the presence of water and a dispersing agent utilizing a less intensive mixing technique such as a propeller driven blender.
Inventors
- 👤 D Tieszen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:30
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/28; C08; C08K; C08K3/00; C08K3/18; C08K5/00; C08K5/04; C08K5/05; C08L; C08L27/00; C08L27/02; C08L27/12; C08L81/00; C08L81/02; C09D181/00; C09D181/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
A PROCESS FOR PRODUCING COATING DISPERSIONS CONSISTING OF THE FOLLOWING STEPS: SUBJECTING A POLY(ARYLENE SULFIDE) IN PARTICULATE FORM TO INTENSIVE MILLING BY BALL MILLING OR ROD MILLING WITH A LIGHT COLORED PIGMENT IN PARTICULATE FORM CAPABLE OF WITHSTANDING A CURING TEMPERATURE OF AT LEAST ABOUT 300*F; THEREAFTER UNDER LESS INTENSIVE CONDITIONS BLENDING THE RESULTING MIXTURE BY BLADE MIXING, TUMBLING, OR SHAKING WITH A FLUOROCARBON POLYMER IN PARTICULATE FORM, IN THE PRESENCE OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER, ETHYLENE GLYCOL, PROPYLENE GLYCOL, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PRODUCING COATING DISPERSIONS CONSISTING OF THE FOLLOWING STEPS: SUBJECTING A POLY(ARYLENE SULFIDE) IN PARTICULATE FORM TO INTENSIVE MILLING BY BALL MILLING OR ROD MILLING WITH A LIGHT COLORED PIGMENT IN PARTICULATE FORM CAPABLE OF WITHSTANDING A CURING TEMPERATURE OF AT LEAST ABOUT 300*F; THEREAFTER UNDER LESS INTENSIVE CONDITIONS BLENDING THE RESULTING MIXTURE BY BLADE MIXING, TUMBLING, OR SHAKING WITH A FLUOROCARBON POLYMER IN PARTICULATE FORM, IN THE PRESENCE OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER, ETHYLENE GLYCOL, PROPYLENE GLYCOL, AND MIXTURES THEREOF.
Claim 3
Dependent Claim
18 words
A method according to claim 1 wherein said fluorocarbon polymer is polytetrafluoroethylene and said pigment is titanium dioxide.
Claim 4
Dependent Claim
29 words
A method according to claim 2 wherein the ratio of said arylene sulfide polymer to said fluorocarbon polymer is in the range of 3:1 to 30:1 based on weight.
Claim 5
Dependent Claim
16 words
A method according to claim 3 wherein said liquid is water containing a surface active agent.
Claim 6
Dependent Claim
13 words
A method according to claim 4 wherein said poly(arylene sulfide) is polyphenylene sulfide.
Claim 7
Dependent Claim
43 words
A method according to claim 5 wherein said poly(arylene sulfide) has a particle size of 40 mesh or smaller, said fluorocarbon polymer has a particle size of 40 mesh or smaller, and said pigment has a particle size of 40 mesh or smaller.
Claim 8
Dependent Claim
48 words
A method according to claim 5 wherein the ratio of said poly(arylene sulfide) to pigment is in the range of 1:1 to 10:1 based on weight and the total solids content is within the range of 15 to 60 percent based on the total weight of said dispersion.
Claim 9
Dependent Claim
45 words
A method according to claim 5 wherein said intensive milling is done by dry ball milling or dry rod milling and said blending is done with a propeller driven mixer and wherein said light colored pigment is capable of withstanding a curing temperature of 600*-800*F.
Claim 10
Dependent Claim
34 words
A method according to claim 5 wherein said fluorocarbon polymer is of a sufficiently high molecular weight to have a melt viscosity test flow of zero at 380* C. using a 5,000 kilogram weight.
References Cited (Backward Citations)
US3622376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |