US5075400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer supersurfactants for protein resistance and protein removal
Assignee: University of Utah
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Filing: 1990-03-14
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Granted: 1991-12-24
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Expires: 2010-03-14
Abstract
Abstract The invention discloses the processes and materials for treating materials to minimize the deposition of proteins and other molecules, and for removing proteins and other molecules from materials. New copolymers containing polyethylene oxide sidechains called supersurfactants have the ability to bind themselves to interfaces to provide a stable protein-resistant interface. A process is presented to treat and modify interfaces with the new copolymers.
Inventors
- 👤 Joseph D. Andrade
- 👤 Jindrich Kopecek
- 👤 Jin H. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:27
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/285; C08F220/286
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
Aqueous solutions of soluble polymers and copolymers containing PEO chains together with alkyl chains to provide optimum adsorption onto hydrophobic surfaces, including polyolefins, acrylates, methacrylates, vinyl polymers, hydrophobic block copolymers, such as polyurethanes, and all other polymers and copolymers whose advancing water contact angle is greater than 20°; such soluble polymers and copolymers containing not less than 5% by weight of monomer units A, where A can be represented by the formula: ##STR4## where X is 6 to 200, R 1 is H or CH 3 and R 2 is H or C 1 to C 8 alkyl.
Claim 2
Dependent Claim
98 words
Aqueous solutions of soluble polymers and copolymers containing PEO chains together with alkyl chains to provide optimum adsorption onto hydrophobic surfaces, including polyolefins, acrylates, methacrylates, vinyl polymers, hydrophobic block copolymers, such as polyurethanes, and all other polymers and copolymers whose advancing water contact angle is greater than 20°; such soluble polymers and copolymers containing not less than 5% by weight of monomer units A, where A can be represented by the formula: ##STR4## where X is 6 to 200, R 1 is H or CH 3 and R 2 is H or C 1 to C 8 alkyl.
Claim 3
Dependent Claim
39 words
Aqueous solutions of soluble polymers and copolymers as set forth in claim 1, wherein the soluble polymers and copolymers have components bearing respective negative or positive charges to provide optimum adsorption and binding onto respective positive or negative surfaces.
Claim 4
Dependent Claim
29 words
Aqueous solutions of soluble polymers and copolymers as set forth in claim 1, wherein the amount of PEO-containing monomer is in the range of 5 to 90% by weight.
Claim 5
Dependent Claim
34 words
Aqueous solution of soluble polymers and copolymers as set forth in claim 1, in which one of said comonomers is of the formula: ##STR5## where R 3 is C 1 to C 2 alkyl.
Claim 6
Dependent Claim
50 words
Aqueous solutions of soluble polymers and copolymers as set forth in claim 1, wherein one of said comonomers is of the formula: ##STR6## where R 4 and R 5 are H or C 1 -C 8 alkyl, acrylic acid, methacrylic acid, diacetone, acrylamide, N-vinyl pyrrolidone, diethylaminoethyl methacrylate, and dimethylaminoethyl methacrylate.
References Cited (Backward Citations)
US4424311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |