Patent US3205156A successfully refreshed from Google Patents.
US3205156A
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US
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Method of preparing polyolefine and polystyrene graft copolymers having an alkylene imine bonded thereto
Assignee: Toray Industries Inc
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Filing: 1962-03-20
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Granted: 1965-09-07
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Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Atarashi Yuhji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:51
CPC Classifications
C; C08; C08F; C08F255/00; C08F257/00; C08F257/02; C08F8/00; C08F8/30; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD IMPROVING THE DYEABILITY OF POLYMERS SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS, MIXTURES OF POLYOLEFINS, POLYSYRENE AND MIXTURES THEREOF WHICH COMPRISES GRAFT COPOLYMERIZING SAID POLYMERS WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND THE DERIVATIVES THEREOF WHICH ARE HYDROLYZED INTO A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID ND METHACRYLIC ACID UNDER THE OPERATING CONDITIONS MAINTAINED DUIRING COPOLYMERIZATION, AND THEREAFTER CONTACTING THE THUS FORMED GRAFTED COPOLYMER WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENE IMINES AND THE N-SUBSTITUTED DERIVATIVES THEREOF, SAID ALKYLENE IMINES AND THE N-SUBSTITUTED DERIVATIVES THEREOF HAVING IN THEIR MOLECULES AT LEAST ONE OF GROUP OF THE FOLLOWING FORMULA
Claim 2
Independent Claim
115 words
A METHOD IMPROVING THE DYEABILITY OF POLYMERS SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS, MIXTURES OF POLYOLEFINS, POLYSYRENE AND MIXTURES THEREOF WHICH COMPRISES GRAFT COPOLYMERIZING SAID POLYMERS WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND THE DERIVATIVES THEREOF WHICH ARE HYDROLYZED INTO A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID ND METHACRYLIC ACID UNDER THE OPERATING CONDITIONS MAINTAINED DUIRING COPOLYMERIZATION, AND THEREAFTER CONTACTING THE THUS FORMED GRAFTED COPOLYMER WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENE IMINES AND THE N-SUBSTITUTED DERIVATIVES THEREOF, SAID ALKYLENE IMINES AND THE N-SUBSTITUTED DERIVATIVES THEREOF HAVING IN THEIR MOLECULES AT LEAST ONE OF GROUP OF THE FOLLOWING FORMULA
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |