Patent US4128706A successfully refreshed from Google Patents.
US4128706A
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Carrier for liquid chromatography
Assignee: Tosoh Corp
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Filing: 1977-11-07
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Granted: 1978-12-05
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Expires: 1997-11-07
Abstract
Abstract A carrier for liquid chromatography having main units ##STR1## WHEREIN N=0 OR AN INTEGER OF 1 TO 3; M=0 OR 1; Q= AN INTEGER OF 1 TO 3; P=0 OR 1; W=90 TO 16; X=57 TO 2; Y=0 TO 30; Z=5 TO 30; B represents adenine, guanine, thymine, uracil or cytosine; X' represents OH Cl, Br or I; and CM represents styrene, a substituted styrene, acrylonitrile, a substituted acrylonitril, acrylic acid or a substituted acrylic acid and CCM represents crosslinking agent having two or more unsaturated group such as ethylene glycol diacrylate, divinylbenzene etc.
Inventors
- 👤 Toru Seita
- 👤 Akihiko Shimizu
- 👤 Yoshio Kato
- 👤 Tsutomu Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:24
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/14; C08F212/16; C08F212/21; C08F8/00; C08F8/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
111 words
A carrier for liquid chromatography having main units ##STR21## wherein n=0 or an integer of 1 to 3; m=0 or 1; q= an integer of 1 to 3; p=0 or 1; w=90 to 16 and preferably 82 to 42; x=57 to 2 and preferably 30 to 8; y=0 to 30 and preferably 0; z=5 to 30 and preferably 10 to 28; B represents adenine, guanine, thymine, uracil or cytosin; X' represents OH, Cl Br or I; CM represents styrene, a substituted styrene, acrylonitrile, a substituted acrylonitrile, acrylic acid or a substituted acrylic acid and CCM represents crosslinking agent having two or more unsaturated group such as ethylene glycol diacrylate, divinylbenzene etc.
Claim 2
Dependent Claim
111 words
A carrier for liquid chromatography having main units ##STR21## wherein n=0 or an integer of 1 to 3; m=0 or 1; q= an integer of 1 to 3; p=0 or 1; w=90 to 16 and preferably 82 to 42; x=57 to 2 and preferably 30 to 8; y=0 to 30 and preferably 0; z=5 to 30 and preferably 10 to 28; B represents adenine, guanine, thymine, uracil or cytosin; X' represents OH, Cl Br or I; CM represents styrene, a substituted styrene, acrylonitrile, a substituted acrylonitrile, acrylic acid or a substituted acrylic acid and CCM represents crosslinking agent having two or more unsaturated group such as ethylene glycol diacrylate, divinylbenzene etc.
Claim 3
Dependent Claim
23 words
A carrier according to claim 1 wherein the carrier has also units derived from a crosslinking agent having two or more unsaturated group.
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) | 1981-12-04 | 1982-06-05 | 1982-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-04 | 1986-06-05 | 1986-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-04 | 1990-06-05 | 1990-12-05 | $7700.00 | Window Closed / Lapsed |