US4043965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of acrylic acid and 1,1-dihydroperfluorooctyl methacrylate useful for applying non-permanent soil release finish
Assignee: Colgate Palmolive Co
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Filing: 1975-07-25
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Granted: 1977-08-23
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Expires: 1995-07-25
Abstract
Abstract A copolymer adapted be used for applying a non-permanent soil-release finish to fabrics comprising a copolymer of acrylic acid and 1,1 -- dihydroperfluorooctyl methacrylate. A ratio of one monomer to the other is respectively about 21:1 to 5:4 by weight. The composition is particularly useful for applying a soil-release finish in the rinse cycle of a home laundry process.
Inventors
- 👤 Robert E. Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:41
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F220/06; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; D06M15/277
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
24 words
A stable aqueous emulsion containing a copolymer consisting essentially of acrylic acid and 1,1-dihydroperfluorooctyl methacrylate in a weight ratio of about 21:1 to 5:4.
Claim 2
Dependent Claim
24 words
A stable aqueous emulsion containing a copolymer consisting essentially of acrylic acid and 1,1-dihydroperfluorooctyl methacrylate in a weight ratio of about 21:1 to 5:4.
Claim 3
Dependent Claim
19 words
The emulsion as defined in claim 1 wherein said copolymer has an acid equivalent of about 75 to 150.
Claim 4
Dependent Claim
18 words
A copolymer consisting essentially of acrylic acid and 1,1-dihydroperfluorooctylmethacrylate in a weight ratio of about 21:1 to 5:4.
Claim 5
Dependent Claim
18 words
A copolymer consisting essentially of acrylic acid and 1,1-dihydroperfluorooctylmethacrylate in a weight ratio of about 21:1 to 5:4.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |