US3897260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel coating composition
Assignee: Zeon Corp
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Filing: 1974-02-25
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Granted: 1975-07-29
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Expires: 1994-02-25
Abstract
Abstract A coating composition comprising 90-40 % by weight of a liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 500-20000 and 10-60 % by weight of a liquid polypentadiene having at least 70 % trans-configuration and a number average molecular weight of 500-20000.
Inventors
- 👤 Hiroshi Yaginuma
- 👤 Takashi Suzuki
- 👤 Atutane Kimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
C; C09; C09D; C09D109/00; C09D115/00; C09D5/00; C09D5/44; C09D5/4403; Y; Y10; Y10S; Y10S106/00; Y10S106/901; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A COATING COMPOSITION COMPRISING 90-40 % BY WEIGHT OF LIQUID POLYBUTADIENE HAVING AT LEAST 60% CIS-CONFIGURATION AND A NUMBER AVERAGE MOLECULAR WEIGHT OF 500-20000 AND 10-60 % BY WEIGHT OF LIQUID POLYPENTADIENE PREPARED BY POLYMERIZING 1,3-PENTADIENE IN A HOMOGENEOUS SYSTEM USING A FRIEDEL-CRAFTS CATALYST HAVING AT LEAST 70 % TRANS-CONFIGURATION AND A NUMBER AVERAGE MOLECULAR WEIGHT OF 500-20000.
Claim 2
Dependent Claim
58 words
A COATING COMPOSITION COMPRISING 90-40 % BY WEIGHT OF LIQUID POLYBUTADIENE HAVING AT LEAST 60% CIS-CONFIGURATION AND A NUMBER AVERAGE MOLECULAR WEIGHT OF 500-20000 AND 10-60 % BY WEIGHT OF LIQUID POLYPENTADIENE PREPARED BY POLYMERIZING 1,3-PENTADIENE IN A HOMOGENEOUS SYSTEM USING A FRIEDEL-CRAFTS CATALYST HAVING AT LEAST 70 % TRANS-CONFIGURATION AND A NUMBER AVERAGE MOLECULAR WEIGHT OF 500-20000.
Claim 3
Dependent Claim
59 words
A coating composition comprising 80-60 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 500-20000 and 20-40 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 500-20000.
Claim 4
Dependent Claim
59 words
A coating composition comprising 80-60 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 500-20000 and 20-40 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 500-20000.
Claim 5
Dependent Claim
59 words
A coating composition comprising 90-40 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 1000-10000 and 10-60 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 1000-10000.
Claim 6
Dependent Claim
59 words
A coating composition comprising 90-40 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 1000-10000 and 10-60 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 1000-10000.
Claim 7
Dependent Claim
59 words
A coating composition comprising 80-60 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 1000-10000 and 20-40 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 1000-10000.
Claim 8
Dependent Claim
59 words
A coating composition comprising 80-60 % by weight of liquid polybutadiene having at least 60 % cis-configuration and a number average molecular weight of 1000-10000 and 20-40 % by weight of liquid polypentadiene prepared by polymerizing 1,3-pentadiene in a homogeneous system using a Friedel-Crafts catalyst having at least 70 % trans-configuration and a number average molecular weight of 1000-10000.
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |