EP0323060A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fluorine-and chromophore-containing polymer
Assignee: 3M Co
•
Filing: 1988-12-09
•
Granted: —
•
Expires: 2008-12-09
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 fluorocarbon 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 a fluorine-containing liquid in which the coating is soluble.
Inventors
- 👤 James E. C/O Minnesota Minning & Garbe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 22:30
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/04; C08F246/00; C08F290/00; C08F290/08; C08F8/00; C09; C09B; C09B69/00; C09B69/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
A fluorine-containing polymer characterized in that the polymer is colored, fluorescing or light absorbing and is selected from one of two classes, wherein the first class of polymers comprises interpolymerized, repeating units derived from: (A) partially- or non-fluorinated, and non-chromophoric-moiety-containing monomer, (B) partially- or non-fluorinated co-monomer which contains chromophoric moieties, wherein at least one of said monomer or co-monomer contains a fluoroaliphatic radical; and the second class of polymers comprises a polymeric backbone of interpolymerized, repeating units derived from partially- or non-fluorinated, non-chromophoric-moiety-containing monomer said backbone having at least one pendent group grafted thereon said pendent group being derived from partially- or non-fluorinated, chromophoric-moiety-containing, pendent-group-precursor compound, wherein at least one of said monomer or pendent group contains a fluoroaliphatic radical.
Claim 2
Dependent Claim
120 words
A fluorine-containing polymer characterized in that the polymer is colored, fluorescing or light absorbing and is selected from one of two classes, wherein the first class of polymers comprises interpolymerized, repeating units derived from: (A) partially- or non-fluorinated, and non-chromophoric-moiety-containing monomer, (B) partially- or non-fluorinated co-monomer which contains chromophoric moieties, wherein at least one of said monomer or co-monomer contains a fluoroaliphatic radical; and the second class of polymers comprises a polymeric backbone of interpolymerized, repeating units derived from partially- or non-fluorinated, non-chromophoric-moiety-containing monomer said backbone having at least one pendent group grafted thereon said pendent group being derived from partially- or non-fluorinated, chromophoric-moiety-containing, pendent-group-precursor compound, wherein at least one of said monomer or pendent group contains a fluoroaliphatic radical.
Claim 3
Dependent Claim
69 words
The polymer of claim 1, further characterized by the feature that said first class polymers comprise 90 to 99.9 percent of said monomer (A) and 10 to 0.1 percent of said monomer (B) on the basis of total monomer weight, and said second class polymers comprise 90 to 99.9 percent polymeric backbone and 10 to 0.1 percent pendent group on the basis of total backbone and pendent group weight.
Claim 4
Dependent Claim
27 words
The polymer of any of the preceding claims, further characterized by the feature that said light absorbing polymer is a first class polymer and a chain-growth polymer.
Claim 5
Dependent Claim
64 words
The polymer of any of claims 1-3, further characterized by the feature that said light absorbing polymer is a chain-growth polymer, monomer (A) contains at least one polymerizable group selected from the group consisting of acrylic, methacrylic, acrylamido, vinyl and allyl groups, and co-monomer (B) contains at least one polymerizable group selected from the group consisting of acrylic, methacrylic, acrylamido, vinyl and allyl groups.
Claim 6
Dependent Claim
27 words
The polymer of any of claims 1-2 further characterized by the feature that said light absorbing polymer is of the first class and is a step-growth polymer.
Claim 7
Dependent Claim
67 words
The polymer of any of claims 1-2 and 5, further characterized by the feature that said light absorbing polymer is of the first class, is a step-growth polymer, monomer (A) contains at least one polymerizable group selected from the group consisting of hydroxyl, carboxyl, haloformic, isocyanato, and amino groups, and co-monomer (B) contains at least one polymerizable group selected from hydroxyl, carboxyl, haloformic, isocyanato and amino groups.
Claim 8
Dependent Claim
27 words
The polymer of any of claims 1-2, further characterized by the feature that said light absorbing polymer is of the second class and is a graft polymer.
Claim 9
Dependent Claim
141 words
The polymer of any of claims 1-2, and 7, further characterized by the feature that said light absorbing polymer is of the second class; is a graft polymer; has a polymeric backbone containing at least one reactive group selected from the group consisting of hydroxyl, carboxyl, haloformic, isocyanato, amino, acrylic, methacrylic, acrylamido, vinyl, and allyl groups; and has at least one pendent group derived from a pendent-group-precursor compound containing at least one reactive group selected from the group consisting of hydroxyl, carboxyl, haloformic, isocyanato, amino, acrylic, methacrylic, acrylamido, vinyl and allyl groups, with the provision that said reactive group on the polymeric backbone will react with said reactive groups on the pendent-group-precursor compound, but neither the reactive group on the backbone nor the reactive group on the pendent-group-precursor compound will react with the polymerizable group on the monomer comprising the backbone.
Claim 10
Independent Claim
23 words
A method of making the polymer of any of claims 1-6, further characterized in that it comprises reacting monomer (A) with monomer (B).
Claim 11
Independent Claim
34 words
A method of making the polymer of any of claims 1,2,7 and 8, characterized in that is comprises polymerizing monomer to form a polymeric backbone, and reacting the polymeric backbone with the pendent-group-precursor compound.
Claim 12
Dependent Claim
18 words
A solution characterized in that it comprises the polymer of any of claims 1-8 and a fluorine-containing liquid.
Claim 13
Dependent Claim
14 words
A coating characterized in that it comprises the polymer of any of claims 1-8.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.