Patent US2565518A successfully refreshed from Google Patents.
US2565518A
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US
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Method of making abrasionresistant coatings
Assignee: Dow Chemical Co
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Filing: 1949-11-25
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Granted: 1951-08-28
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Norman R Peterson
- 👤 Robert L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:17
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; C; C08; C08K; C08K5/00; C08K5/01; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L91/00; C08L91/005; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C09D191/00; C09D191/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD WHICH COMPRISES MIXING FROM 10 TO 50 PARTS BY WEIGHT OF AN EMULSION-PRODUCED COPOLYMER OF 50 TO 90 PER CENT VINYL CHLORIDE AND CORRESPONDINGLY 50 TO 10 PER CENT VINYLIDENE CHLORIDE, SAID COPOLYMER HAVING A VISCOSITY RATING IN CENTIPOISES OF FROM 0.9 TO 1.4, MEASURED AT 120* C. ON A 2 PERCENT SOLUTION OF THE POYMER, BY WEIGHT, IN ORTHODICHLOROBENZENE, WITH FROM 50 TO 90 PARTS OF A VOLATILE ORGANIC LIQUID WHICH SWELLS 200 PARTS OF A VOLATILE ORGANIC LIQUID WHICH SWELLS BUT DOES NOT DISSOLVE OR FORM LYOPHILIC GELS WITH THE COPOLYMER, AND AFTER THE COPOLYMER HAS BECOME SWOLLEN IN SUCH A MIXTURE, SUBJECTING THE WHOLE TO A GRINDING OPERATION TO PRODUCE PHYSICAL HOMOGENEITY.
Claim 2
Independent Claim
117 words
THE METHOD WHICH COMPRISES MIXING FROM 10 TO 50 PARTS BY WEIGHT OF AN EMULSION-PRODUCED COPOLYMER OF 50 TO 90 PER CENT VINYL CHLORIDE AND CORRESPONDINGLY 50 TO 10 PER CENT VINYLIDENE CHLORIDE, SAID COPOLYMER HAVING A VISCOSITY RATING IN CENTIPOISES OF FROM 0.9 TO 1.4, MEASURED AT 120* C. ON A 2 PERCENT SOLUTION OF THE POYMER, BY WEIGHT, IN ORTHODICHLOROBENZENE, WITH FROM 50 TO 90 PARTS OF A VOLATILE ORGANIC LIQUID WHICH SWELLS 200 PARTS OF A VOLATILE ORGANIC LIQUID WHICH SWELLS BUT DOES NOT DISSOLVE OR FORM LYOPHILIC GELS WITH THE COPOLYMER, AND AFTER THE COPOLYMER HAS BECOME SWOLLEN IN SUCH A MIXTURE, SUBJECTING THE WHOLE TO A GRINDING OPERATION TO PRODUCE PHYSICAL HOMOGENEITY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |