US3089897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerization of ethylene with alkyl acrylates or methacrylates
Assignee: Rohm and Haas Co
•
Filing: 1959-06-16
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Granted: 1963-05-14
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Expires: 1979-06-16
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Balmer
- 👤 Clarence A Brown
- 👤 Melvin D Hurwitz
- 👤 James E Masterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A LIQUID COPOLYMER OF ETHYLENE AND A MEMBER FROM THE CLASS CONSISTING OF ETHYL ACRYLATE, METHYL ACRYLATE, AND METHYL METHACRYLATE, SAID COPOLYMER HAVING A VISCOSTLY IN THE RANGE OF FROM H TO Z5 ON THE GARDNER-HOLDT SCALE, AN ACID NUMBER WHICH DOES NOT EXCEED 3, A MOLECULAR WEIGHT OF BETWEEN ABOUT 500 AND 1500, AND A MOLAR RATIO OF ETHYLENE TO THE ACRYLIC MONOMER RANGING FROM 1 TO 3 IN WHICH RATIO THE UPPER LIMIT IS A FUNCTION OF MOLECULAR WEIGHT AS EXPRESSED BY THE EQUATION: MOLES OF ETHYLENE/MOLE OF ACRYLIC MONOMER.
Claim 2
Dependent Claim
92 words
A LIQUID COPOLYMER OF ETHYLENE AND A MEMBER FROM THE CLASS CONSISTING OF ETHYL ACRYLATE, METHYL ACRYLATE, AND METHYL METHACRYLATE, SAID COPOLYMER HAVING A VISCOSTLY IN THE RANGE OF FROM H TO Z5 ON THE GARDNER-HOLDT SCALE, AN ACID NUMBER WHICH DOES NOT EXCEED 3, A MOLECULAR WEIGHT OF BETWEEN ABOUT 500 AND 1500, AND A MOLAR RATIO OF ETHYLENE TO THE ACRYLIC MONOMER RANGING FROM 1 TO 3 IN WHICH RATIO THE UPPER LIMIT IS A FUNCTION OF MOLECULAR WEIGHT AS EXPRESSED BY THE EQUATION: MOLES OF ETHYLENE/MOLE OF ACRYLIC MONOMER.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |