US3919183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoroalkyl groups containing polymerisation products
Assignee: Novartis AG
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Filing: 1973-09-17
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Granted: 1975-11-11
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Expires: 1993-09-17
Abstract
Abstract wherein Rf represents an unbranched or branched perfluoroalkyl radical with 3 to 12 carbon atoms, R represents hydrogen or fluorine, and R1 and R2 represent hydrogen or methyl and m is 1 or 2, n is a whole number from 2 to 12, and p is a whole number from 1 to 3, and optionally of other copolymerisable, ethylenically unsaturated monomeric compounds are provided. The polymerisation products can be homopolymers or copolymers. The polymerisation products are useful for producing oleophobic, hydrophobic or dirt repellent finishes on various substrates. Polymerisation products of at least one perfluoroalkylalkyl ester of the formula
Inventors
- 👤 Horst Jager
- 👤 Paul Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:10
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22; C08F20/24
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
12 words
HOMOPOLYMERS WHICH CONTAIN ABOUT 10 TO 400 RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
12 words
HOMOPOLYMERS WHICH CONTAIN ABOUT 10 TO 400 RECURRING UNITS OF THE FORMULA
Claim 3
Dependent Claim
16 words
Homopolymers according to claim 1, which contain about 10 to 400 recurring units of the formula
Claim 4
Dependent Claim
16 words
Homopolymers according to claim 2, which contain about 10 to 400 recurring units of the formula
Claim 5
Dependent Claim
16 words
Homopolymers according to claim 2, which contain about 10 to 400 recurring units of the formula
Claim 6
Dependent Claim
12 words
Copolymers which contain about 10 to 400 recurring units of the formula
Claim 7
Dependent Claim
12 words
Copolymers which contain about 10 to 400 recurring units of the formula
Claim 8
Dependent Claim
16 words
Copolymers according to claim 5, which contain about 10 to 400 recurring units of the formula
Claim 9
Dependent Claim
16 words
Copolymers according to claim 6, which contain about 10 to 400 recurring units of the formula
Claim 10
Dependent Claim
16 words
Copolymers according to claim 6, which contain about 10 to 400 recurring units of the formula
Claim 11
Dependent Claim
45 words
Copolymers according to claim 5, wherein as comonomers there are used members selected from the group consisting of esters, amides, methylol amides of acrylic or methacrylic acid, which optionally contain perfluoroalkyl groups, styrene, vinyl halides, vinylidene halides, vinyl esters of organic acids, and polymerisable olefines.
Claim 12
Dependent Claim
19 words
A process for the manufacture of polymerisation products according to claim 5, wherein perfluoroalkyl esters of the formula 8n
Claim 13
Dependent Claim
12 words
A process according to claim 10, wherein perfluoroalkylalkyl esters of the formula
Claim 14
Dependent Claim
12 words
A process according to claim 10, wherein perfluoroalkylalkyl esters of the formula
Claim 15
Dependent Claim
20 words
A process according to claim 10, wherein the polymerisation is carried out in an organic or in an aqueous emulsion.
Claim 16
Dependent Claim
21 words
A process according to claim 10, wherein the polymerisation is carried out in the presence of a catalyst that forms radicals.
Claim 17
Dependent Claim
27 words
Polymerization products according to claim 5 wherein the product contained 40 to 98% perfluoroalkylalkyl ester and 60 to 2% of the other copolymerizable ethylenically unsaturated monomeric compound.
References Cited (Backward Citations)
US3248260A
Cited
US3457247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |