US5030701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine- and chromophore-containing polymer
Assignee: Dyneon LLC
•
Filing: 1990-01-05
•
Granted: 1991-07-09
•
Expires: 2010-01-05
Abstract
Abstract Chromophoric-moiety-containing, polymeric materials, containing at least one fluoroaliphatic radical, which are useful as dyes or colorants for fluorine-containing liquids, as coatings or components of coatings which are colored, light-absorbing, or fluorescing and characteristic properties of flurocarbon polymers, e.g. chemical inertness and hydrophobicity; and a method of detecting leaks in normally sealed devices, e.g. electronic devices, using a coating which includes the polymeric material, and a bath of fluorine-containing liquid in which the coating is soluble.
Inventors
- 👤 James E. Garbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/08; C08F246/00; C08F8/00; C09; C09B; C09B69/00; C09B69/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
A fluorine-containing, colored, fluorescing or light absorbing polymer having at least about 40 weight percent fluorine, wherein substantially all of the fluroine content of the polymer resides in fluoroaliphatic radicals incorporated into the polymer and said polymers are derived from: (A) a polymeric backbone of interpolymerized, repeating units derived from partially- or non-fluorinated, non-chromophoric-moiety-containing monomer(s), and (B) at least one partially- or non-fluroinated, chromophoric-moiety-containing pendent-group-precursor compound(s).
Claim 2
Dependent Claim
66 words
A fluorine-containing, colored, fluorescing or light absorbing polymer having at least about 40 weight percent fluorine, wherein substantially all of the fluroine content of the polymer resides in fluoroaliphatic radicals incorporated into the polymer and said polymers are derived from: (A) a polymeric backbone of interpolymerized, repeating units derived from partially- or non-fluorinated, non-chromophoric-moiety-containing monomer(s), and (B) at least one partially- or non-fluroinated, chromophoric-moiety-containing pendent-group-precursor compound(s).
Claim 3
Dependent Claim
29 words
A polymer according to claim 1, wherein said polymer is derived from 90 to 99.9 weight percent polymeric backbone (A) and 10 to 0.1 weight percent pendent-group-precursor compound(s) (B).
Claim 4
Dependent Claim
83 words
A polymer according to claim 1, wherein said polymeric backbone (A) contains at least one reactive group selected from the group consisting of hydroxyl, carboxyl, haloformic, isocyanato, amino, acrylic, methacrylic, acrylamido, vinyl and allyl groups, and said pendent-group-precursor compound(s) (B) contain at least one reactive group selected from the group consisting of hydroxyl, carboxyl, haloformic, isocyanato, amino, acrylic, methacrylic, acrylamido, vinyl and allyl groups, and said reactive group on the polymeric backbone (A) reacts with said reactive group on the pendent-group-precursor compound(s) (B).
References Cited (Backward Citations)
CA722530A
Cited
US2371052A
Cited
US2642416A
Cited
US3281426A
Cited
US3567678A
Cited
US3250807A
Cited
US3503087A
Cited
GB1036700A
Cited
GB1188815A
Cited
US4107290A
Cited
US3933914A
Cited
US4144252A
Cited
US4153804A
Cited
US4544738A
Cited
US4560744A
Cited
US4585460A
Cited
US4638040A
Cited
US4582509A
Cited
US4548613A
Cited
US4680375A
Cited
EP0323060A2
Cited
US4909806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |