US4138419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentadiene derivative
Assignee: JSR Corp
•
Filing: 1977-04-29
•
Granted: 1979-02-06
•
Expires: 1997-04-29
Abstract
Abstract A novel cyclopentadiene derivative of the general formula: <IMAGE> wherein R1 is hydrogen, a mono- to tetra-hydric alcohol moiety having 1 to 12 carbon atoms, a metal of Groups Ia, IIa and IIb of the Periodic Table, an ammonium group or an organic amine residue; R2, R3, and R4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; Ra, Rb, and Rc are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4. This cyclopentadiene derivative is comparable or even superior to natural rosin in effectiveness as an emulsifier for use in the production of SBR and ABS resins or as a sizing agent in paper making.
Inventors
- 👤 Masatoshi Arakawa
- 👤 Ryotaro Ohno
- 👤 Katuhiro Ishikawa
- 👤 Noboru Yamahara
- 👤 Hisashi Matsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:38
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/14; C; C07; C07C; C07C17/00; C07C17/07; C07C17/08; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
107 words
A cyclopentadiene derivative comparable in performance characteristics to natural rosin, having the general formula: ##STR29## wherein R 1 is hydrogen, a mono- to tetra-hydric alcohol moiety having 1 to 12 carbon atoms, a metal of Groups Ia, and IIa of the Periodic Table, an ammonium group or an organic amine residue; R 2 , R 3 , and R 4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; R a , R b , and R c are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4.
Claim 2
Dependent Claim
107 words
A cyclopentadiene derivative comparable in performance characteristics to natural rosin, having the general formula: ##STR29## wherein R 1 is hydrogen, a mono- to tetra-hydric alcohol moiety having 1 to 12 carbon atoms, a metal of Groups Ia, and IIa of the Periodic Table, an ammonium group or an organic amine residue; R 2 , R 3 , and R 4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; R a , R b , and R c are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4.
Claim 3
Dependent Claim
18 words
A cyclopentadine derivative according to claim 1, wherein R a , R b and R c are hydrogen.
Claim 4
Dependent Claim
30 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is hydrogen, a mono- to tetra-hydric alcohol moiety having 1 to 6 carbon atoms, sodium, potassium, calcium, magnesium, or ammonium.
Claim 5
Dependent Claim
16 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is hydrogen, and n is 1.
Claim 6
Dependent Claim
18 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is Na or K, and n is 1.
Claim 7
Dependent Claim
18 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is Ca, or Mg, and n is 2.
Claim 8
Dependent Claim
23 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is a mono- to tetra-hydric alcohol moiety having 1 to 6 carbon atoms.
Claim 9
Dependent Claim
21 words
A cyclopentadiene derivative according to claim 1, wherein R 1 is ammonium or an organic amine residue, and n is 1.
Claim 10
Dependent Claim
30 words
A cyclopentadiene derivative according to claim 1, wherein R 2 and R 3 are hydrogen, or an alkyl group having 1 to 6 carbon atoms, and R 4 is hydrogen.
Claim 11
Dependent Claim
30 words
A cyclopentadiene derivative according to claim 1, wherein R 2 is hydrogen or an alkyl group having 1 to 6 carbon atoms, and R 3 and R 4 are hydrogen.
Claim 12
Dependent Claim
24 words
A cyclopentadiene derivative according to claim 1, wherein R 2 , R 3 , and R 4 are independently hydrogen, methyl, ethyl, or isopropyl.
Claim 13
Dependent Claim
11 words
A cyclopentadiene derivative according to claim 1, wherein m is 0.
Claim 14
Dependent Claim
26 words
The cyclopentadiene derivative of claim 1, wherein R 1 is hydrogen, a metal of Groups Ia and IIa of the Periodic Table, or an ammonium group.
Claim 15
Dependent Claim
77 words
A cyclopentadiene derivative having the general formula: ##STR30## wherein R 1 is a metal of Group IIb of the Periodic Table; R 2 , R 3 , and R 4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; R a , R b , and R c are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4.
Claim 16
Dependent Claim
77 words
A cyclopentadiene derivative having the general formula: ##STR30## wherein R 1 is a metal of Group IIb of the Periodic Table; R 2 , R 3 , and R 4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; R a , R b , and R c are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |