US2986507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of acrylic-type polymers which are insolubilized in situ after polymerization and end product application
Assignee: Rohm and Haas Co
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Filing: 1957-10-30
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Granted: 1961-05-30
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Expires: 1977-10-30
Abstract
No abstract record available.
Inventors
- 👤 Naomi S Steck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:08
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F2/00; C08F2/46; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F291/00; C08F291/18; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR PREPARING AN INSOLUBLE POLYMER WITHOUT THE AID OF ANY CROSSLINKING MONOMER FROM A MONOMER SELECTED FROM THE CLASS CONSISTING OF ACRYLATES AND METHACRYLATES CONTAINING ESTER GROUPS FROM C1 TO C18 AND MIXTURES THEREOF, AND HAVING ONLY ONE POLYMERIZABLE GROUP, COMPRISING MIXING TOGETHER THE MONOMER, A THERMAL CATALYST SUITABLE FOR POLYMERIZING THE MONOMER, AND AT LEAST ABOUT 0.01 PERCENT, BASED ON THE WEIGHT OF THE MONOMER, OF A PHOTOINSOLUBLIZER SUITABLE WHEN ENERGIZED FOR INSOLUBILIZING SOLID BUT SOLUBLE, FUSIBLE POLYMERS FORMED FROM ACRYLATES AND METHACRYLATES, THEN THERMALLY TREATING THE MIXTURE SO AS TO EFFECT SUBSTANTIALLY COMPLETE POLYMERIZATION THEREOF AND FORM A SOLID, FUSIBLE POLYMER WHICH IS SOLUBLE IN ORGANIC SOLVENTS, AND FINALLY EXPOSING THE POLYMER TO ULTRAVIOLET LIGHT IRRADIATION SO AS TO ENERGIZE THE PHOTOINSOLUBILIZER AND THEREBY INSOLUBILIZE THE POLYMER.
Claim 2
Dependent Claim
131 words
A PROCESS FOR PREPARING AN INSOLUBLE POLYMER WITHOUT THE AID OF ANY CROSSLINKING MONOMER FROM A MONOMER SELECTED FROM THE CLASS CONSISTING OF ACRYLATES AND METHACRYLATES CONTAINING ESTER GROUPS FROM C1 TO C18 AND MIXTURES THEREOF, AND HAVING ONLY ONE POLYMERIZABLE GROUP, COMPRISING MIXING TOGETHER THE MONOMER, A THERMAL CATALYST SUITABLE FOR POLYMERIZING THE MONOMER, AND AT LEAST ABOUT 0.01 PERCENT, BASED ON THE WEIGHT OF THE MONOMER, OF A PHOTOINSOLUBLIZER SUITABLE WHEN ENERGIZED FOR INSOLUBILIZING SOLID BUT SOLUBLE, FUSIBLE POLYMERS FORMED FROM ACRYLATES AND METHACRYLATES, THEN THERMALLY TREATING THE MIXTURE SO AS TO EFFECT SUBSTANTIALLY COMPLETE POLYMERIZATION THEREOF AND FORM A SOLID, FUSIBLE POLYMER WHICH IS SOLUBLE IN ORGANIC SOLVENTS, AND FINALLY EXPOSING THE POLYMER TO ULTRAVIOLET LIGHT IRRADIATION SO AS TO ENERGIZE THE PHOTOINSOLUBILIZER AND THEREBY INSOLUBILIZE THE POLYMER.
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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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |