US3051585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective coatings for polyester resins
Assignee: Hooker Chemical Corp
•
Filing: 1958-12-02
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Granted: 1962-08-28
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Alan E Weinberg
- 👤 Claude T Bean
- 👤 Robitschek Paul
- 👤 Blaine O Schoepfle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
C; C08; C08J; C08J5/00; B; B32; B32B; B32B27/00; C08L; C08L67/00; C08L67/06; C09; C09D; C09D167/00; C08J2367/00; C08J2367/06; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD FOR FORMING A PLASTIC ARTICLE WITH A WEATHER-RESISTANT, ADHERENT, TRANSPARENT COATING, CHEMICALLY COMBINED IN SAID PLASTIC ARTICLE, WHICH COMPRISES: (I) MIXING TOGETHER A COATING COMPOSITION COMPRISING (A) A MAJOR PORTION OF AN UNSATURATED LIQUID POLYESTER RESIN AND A VINYLIDENE MONOMER, AND (B) A MINOR PORTION OF A HYDROCARBON WAX, AN ULTRAVIOLET LIGHT STABILIZER AND A POLYMERIZATION INITIATOR; (II) SPREADING SAID COATING COMPOSITION UPON A SELF-SUPPORTING FILM TO A THICKNESS OF FROM ABOUT 0.1 TO ABOUT 25 MILS AND ALLOWING SAID COATING COMPOSITION TO GEL; (III) CONTACTING THE GELLED SIDE OF THE COATED SELF-SUPPORTING FILM AND A COPOLYMERIZABLE COMPOSITION COMPRISING (A) AN UNSATURATED POLYESTER RESIN AND (B) AN VINYLIDENE MONOMER; AND (IV) HEATING THE RESULTING COATED COMPOSITION AT AN ELEVATED TEMPERATURE, THEREBY SIMULTANEOUSLY CURING SAID COATED COMPOSITION AND OBTAINING CHEMICAL COMBINATION OF THE COATING COMPOSITION AND THE COPOLYMERIZABLE COMPOSITION.
Claim 2
Independent Claim
140 words
A METHOD FOR FORMING A PLASTIC ARTICLE WITH A WEATHER-RESISTANT, ADHERENT, TRANSPARENT COATING, CHEMICALLY COMBINED IN SAID PLASTIC ARTICLE, WHICH COMPRISES: (I) MIXING TOGETHER A COATING COMPOSITION COMPRISING (A) A MAJOR PORTION OF AN UNSATURATED LIQUID POLYESTER RESIN AND A VINYLIDENE MONOMER, AND (B) A MINOR PORTION OF A HYDROCARBON WAX, AN ULTRAVIOLET LIGHT STABILIZER AND A POLYMERIZATION INITIATOR; (II) SPREADING SAID COATING COMPOSITION UPON A SELF-SUPPORTING FILM TO A THICKNESS OF FROM ABOUT 0.1 TO ABOUT 25 MILS AND ALLOWING SAID COATING COMPOSITION TO GEL; (III) CONTACTING THE GELLED SIDE OF THE COATED SELF-SUPPORTING FILM AND A COPOLYMERIZABLE COMPOSITION COMPRISING (A) AN UNSATURATED POLYESTER RESIN AND (B) AN VINYLIDENE MONOMER; AND (IV) HEATING THE RESULTING COATED COMPOSITION AT AN ELEVATED TEMPERATURE, THEREBY SIMULTANEOUSLY CURING SAID COATED COMPOSITION AND OBTAINING CHEMICAL COMBINATION OF THE COATING COMPOSITION AND THE COPOLYMERIZABLE COMPOSITION.
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |