Antimicrobial superabsorbent compositions and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/00
A61K-009/70
A01N-055/00
출원번호
US-0622653
(1990-12-05)
발명자
/ 주소
Blank, Lynne M. B.
Boyce, Thomas D.
White, William C.
출원인 / 주소
Dow Corning Corporation
대리인 / 주소
DeCesare, Jim L.
인용정보
피인용 횟수 :
29인용 특허 :
19
초록▼
An antimicrobial superabsorbent composition of a cross-linked hydrophilic sodium salt form of a partially neutralized acrylic acid-based polymer gel having covalently bonded thereto a silane. The composition can be in the form of flakes, strips, powders, filaments, fibers, or films, and may be appli
An antimicrobial superabsorbent composition of a cross-linked hydrophilic sodium salt form of a partially neutralized acrylic acid-based polymer gel having covalently bonded thereto a silane. The composition can be in the form of flakes, strips, powders, filaments, fibers, or films, and may be applied to a substrate in the form of a coating.
대표청구항▼
1. The method of inhibiting the proliferation of potentially destructive microorganisms on a substrate comprising treating the substrate with an effective amount of an antimicrobial superabsorbent composition formed of a crosslinked hydrophilic sodium salt form of a partially neutralized acrylic aci
1. The method of inhibiting the proliferation of potentially destructive microorganisms on a substrate comprising treating the substrate with an effective amount of an antimicrobial superabsorbent composition formed of a crosslinked hydrophilic sodium salt form of a partially neutralized acrylic acid based polymer gel, the polymer gel having covalently bonded thereto an organosilane, the organosilane being present in an amount to prevent hydrophobing and reduction of the absorbent capacity of the polymer gel, the organosilane having a formula selected from the group consisting of ##STR## wherein in each formula, R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from the group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 C 6 H 5, --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NCH(O)R vi, wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate. 2. The method of claim 1 wherein the silane is represented by the formula ##EQU##(CH 3 O) 3 Si(CH 2 ) 3 N + (CH 3 ) 2 C 18 H 37 Cl - 3. The method of claim 1 wherein the silane is represented by the formula ##EQU##(CH 3 O) 3 Si(CH 2 ) 3 N+(C 10 H 21 ) 2 (CH 3 )Cl - 4. The method of claim 1 wherein the composition is in the form of flakes, strips, powders, filaments, fibers, or films. 5. The method of reducing odor and simultaneously controlling diaper rash by the suppression of bacteria that attack urinary urea with the liberation of ammonia comprising treating diaper fabric with an effective amount of an antimicrobial superabsorbent formed of a crosslinked hydrophilic sodium salt form of a partially neutralized acrylic acid based polymer gel, the polymer gel having covalently bonded thereto an organosilane, the organosilane being present in an amount to prevent hydrophobing and reduction of the absorbent capacity of the polymer gel, the organosilane having a formula selected from the group consisting of ##STR## wherein in each formula, R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from the group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 C 6 H 5, --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi, wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate. 6. An article of manufacture from the group consisting of a bandage, a surgical tampon, a sorptive dental roll, a catamenial tampon, a sanitary napkin, a diaper, a body urinal, an underarm perspiration pad, a breast pad, a disposable hat band, a wiping cloth, a tissue wipe, a premoistened towelette, a mattress pad, an undersheet, a surgical dressing and a facial tissue comprising an antimicrobial superabsorbent composition formed of a crosslinked hydrophilic sodium salt form of a partially neutralized acrylic acid based polymer gel, the polymer gel having covalently bonded thereto an organosilane, the organosilane being present in an amount to prevent hydrophobing and reduction of the absorbent capacity of the polymer gel, the organosilane having a formula selected from the group consisting of ##STR## wherein in each formula, R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'" , R"" and R v are each independently selected from the group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 C 6 H 5, --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi, wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate.
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이 특허에 인용된 특허 (19)
Klein Stewart E. (Richardson La. Harrison NY 10528), 3-(Trimethoxysilyl) propyldidecylmethyl ammonium salts and method of inhibiting growth of microorganisms therewith.
Mesek Frederick K. (Tinley Park IL) Butterworth George A. M. (Western Springs IL) Cepuritis Talivaldis (Kenilworth IL), Absorbent open network structure.
Yasuda Kazuo (Otsu JPX) Funabashi Kyo (Nagaokakyo JPX) Chiyoda Akiyoshi (Toyonaka JPX), Antimicrobial fabrics having improved susceptibility to discoloration and process for production thereof.
Chiao Wen B. (Piscataway NJ) Ray-Chaudhuri Dilip K. (Bridgewater NJ), Polymeric adducts with pendant polymerizable double bonds, their preparation and use as reactive thickeners in improved.
Edelmann, Roland; Waβmer, Christian; Jenkner, Peter; Monkiewicz, Jaroslaw; Militz, Holger; Mai, Carsten; Donath, Steffen, Agent for providing substrates based on cellulose and/or starch with water repellent and simultaneously antifungal, antibacterial insect-repellent and antialgal properties.
Schoenfisch, Mark; Riccio, Daniel; Nugent, Julia; Stasko, Nathan, Nitric oxide-releasing S-nitrosothiol-modified silica particles and methods of making the same.
Herfert,Norbert; Azad,Michael M.; Mitchell,Michael A.; Woodrum,Guy Thomas; Chiang,William G. J.; Brown,Patricia D.; Robinson,James C., Superabsorbent polymers and method of manufacturing the same.
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