US3341497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic solvent soluble perfluorocarbon copolymers
Assignee: 3M Co
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Filing: 1966-01-21
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Granted: 1967-09-12
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Expires: 1986-01-21
Abstract
Abstract 1,165,203. Coated sheet material. MINNESOTA MINING & MFG. CO. 13 Oct., 1966, No. 45826/66. Headings B2E and B2K. [Also in Division C3] Substrates are coated with a random copolymer of at least two monomers one of which has the general formula R<SP>f</SP>P in which R<SP>f</SP> represents a perfluorocarbon group containing at least 4 carbon atoms and P represents a polymerisable group containing terminal ethylenic unsaturation and another of which is a terminally ethylenically unsaturated monomer free of nonvinylic fluorine, the fluorine content of the appendant pernuorocarbon tails represented by the groups R<SP>f</SP> being at least 1 percent and less than 40 percent by weight of the copolymer, the backbone drain of the copolymer consisting substantially entirely of carbon atoms with at least half of the substituents being hydrogen atoms and/or unsubstituted alkyl groups of not greater than 6 carbon atoms, and the copolymer being soluble in a non-fluorinated organic solvent. Suitable substrates are glass, aluminium, mild steel textile fabrics, leather and concrete.
Inventors
- 👤 Patsy O Sherman
- 👤 Smith Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24; C08F16/36; C08F18/00; C08F18/20; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F214/00; C08F214/18; C08F214/186; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; C08F28/00; C08F8/00; C08F8/28; C08F8/48; C08F2810/00; C08F2810/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
A NONFLUORINATED ORGANIC SOLVENT SOLUBLE FLUOROCARBON PRECONDENSATE RESIN REACTABLE WITH FORMALDEHYDE CONTAINING AT LEAST 1 PERCENT FLUORINE IN FORM OF PERFLUOROCARBON TAILS AND COMPRISING (1) ABOUT 2 TO ABOUT 50 PERCENT BY WEIGHT OF MONOMERIC UNITS OF THE MONOMER RFP, WHERE RF IS A PERFLUOROCARBON RADICAL CONTAINING AT LEAST 4 CARBON ATOMS AND P IS A POLYERIZABLE GROUP CONTAINING TERMINAL ETHYLENIC UNSATURATION, (2) ABOUT 1 TO ABOUT 25 PERCENT BY WEIGHT OF MONOMERIC UNITS OF AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING A FUNCTIONAL GROUP REACTABLE WITH FORMALDEHYDE AND (3) ABOUT 25 TO ABOUT 97 PERCENT BY WEIGHT OF MONOMERIC UNITS DIFFERENT FROM (2) ABOVE OF AN ETHYLENICALLY UNSATURATED MONOMER FREE OF NONVINYLIC FLUORINE, THE FLUORINE CONTENT OF THE APPENDANT PERFLUOROCARBON RF TAILS OF THE COPOLYMER REPRESENTING AT LEAST 1 PERCENT AND LESS THAN 40 PERCENT BY WEIGHT OF THE COPOLMER, THE BACKBONE OF THE COPOLYMER BEING SUBSTANTIALLY ENTIRELY CARBON WITH AT LEAST HALF OF THE SUBSTITUENTS BEING HYDROGEN, A RADICAL HAVING AN UNSUBSTITUTED ALKYL GROUP OF NOT GREATER THAN 6 CARBON ATOMS OR BOTH, AND THE COPOLYMER HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 20,000 AND ABOUT 500,000.
Claim 2
Dependent Claim
186 words
A NONFLUORINATED ORGANIC SOLVENT SOLUBLE FLUOROCARBON PRECONDENSATE RESIN REACTABLE WITH FORMALDEHYDE CONTAINING AT LEAST 1 PERCENT FLUORINE IN FORM OF PERFLUOROCARBON TAILS AND COMPRISING (1) ABOUT 2 TO ABOUT 50 PERCENT BY WEIGHT OF MONOMERIC UNITS OF THE MONOMER RFP, WHERE RF IS A PERFLUOROCARBON RADICAL CONTAINING AT LEAST 4 CARBON ATOMS AND P IS A POLYERIZABLE GROUP CONTAINING TERMINAL ETHYLENIC UNSATURATION, (2) ABOUT 1 TO ABOUT 25 PERCENT BY WEIGHT OF MONOMERIC UNITS OF AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING A FUNCTIONAL GROUP REACTABLE WITH FORMALDEHYDE AND (3) ABOUT 25 TO ABOUT 97 PERCENT BY WEIGHT OF MONOMERIC UNITS DIFFERENT FROM (2) ABOVE OF AN ETHYLENICALLY UNSATURATED MONOMER FREE OF NONVINYLIC FLUORINE, THE FLUORINE CONTENT OF THE APPENDANT PERFLUOROCARBON RF TAILS OF THE COPOLYMER REPRESENTING AT LEAST 1 PERCENT AND LESS THAN 40 PERCENT BY WEIGHT OF THE COPOLMER, THE BACKBONE OF THE COPOLYMER BEING SUBSTANTIALLY ENTIRELY CARBON WITH AT LEAST HALF OF THE SUBSTITUENTS BEING HYDROGEN, A RADICAL HAVING AN UNSUBSTITUTED ALKYL GROUP OF NOT GREATER THAN 6 CARBON ATOMS OR BOTH, AND THE COPOLYMER HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 20,000 AND ABOUT 500,000.
Claim 3
Dependent Claim
133 words
AN ORGANIC SOLUTION IN A NONFLUORINATED ORGANIC SOLVENT OF A RANDOM FLUOROCARBON COPOLYMER OF BETWEEN ABOUT 2 AND ABOUT 75 WEIGHT PERCENT OF A MONOMER OF THE FORMULA RFP, WHERE RF IS A PERFLUOROCARBON RADICAL CONTAINING AT LEAST 4 CARBON ATOMS AND P IS A POLYMERIZABLE GROUP CONTAINING TERMINAL ETHYLENIC UNSATURATION AND OF A TERMINALLY ETHYLENICALLY UNSATURATED MONOMER FREE OF NONVINYLIC FLUORINE, THE FLUORINE CONTENT OF THE APPENDANT PERFLUOROCARBON RF TAILS OF THECOPOLYMER REPRESENTING AT LEAST 1 PERCENT AND LESS THAN 40 PERCENT BY WEIGHT OF THE COPOLYMER, THE BACKBONE OF THE COPOLYMER BEING SUBSTANTIALLY ENTIRELY CARBON WITH AT LEAST HALF OF THE SUBSTITUENTS BEING HYDROGEN, A RADICAL HAVING AN UNSUBSTITUTED ALKYL GROUP OF NOT GREATER THAN 6 CARBON ATOMS OR BOTH, AND THE COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 20,000.
Claim 4
Dependent Claim
133 words
AN ORGANIC SOLUTION IN A NONFLUORINATED ORGANIC SOLVENT OF A RANDOM FLUOROCARBON COPOLYMER OF BETWEEN ABOUT 2 AND ABOUT 75 WEIGHT PERCENT OF A MONOMER OF THE FORMULA RFP, WHERE RF IS A PERFLUOROCARBON RADICAL CONTAINING AT LEAST 4 CARBON ATOMS AND P IS A POLYMERIZABLE GROUP CONTAINING TERMINAL ETHYLENIC UNSATURATION AND OF A TERMINALLY ETHYLENICALLY UNSATURATED MONOMER FREE OF NONVINYLIC FLUORINE, THE FLUORINE CONTENT OF THE APPENDANT PERFLUOROCARBON RF TAILS OF THECOPOLYMER REPRESENTING AT LEAST 1 PERCENT AND LESS THAN 40 PERCENT BY WEIGHT OF THE COPOLYMER, THE BACKBONE OF THE COPOLYMER BEING SUBSTANTIALLY ENTIRELY CARBON WITH AT LEAST HALF OF THE SUBSTITUENTS BEING HYDROGEN, A RADICAL HAVING AN UNSUBSTITUTED ALKYL GROUP OF NOT GREATER THAN 6 CARBON ATOMS OR BOTH, AND THE COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 20,000.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |