Aldehyde-functionalized polymers with enhanced stability
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-002/00
출원번호
US-0641557
(2009-12-18)
등록번호
US-8288502
(2012-10-16)
발명자
/ 주소
Bode, Heinrich E.
St. John, Michael R.
Liu, Mei
Lowe, Robert M.
출원인 / 주소
Nalco Company
대리인 / 주소
Yonter, Edward O.
인용정보
피인용 횟수 :
11인용 특허 :
27
초록▼
The current invention includes a composition having stability additives of selected inorganic salts and/or organic incorporated into an aldehyde-functionalized polymer product. The stability additive can be post added to the finished polymer product, added to the reaction vessel prior to inducing fu
The current invention includes a composition having stability additives of selected inorganic salts and/or organic incorporated into an aldehyde-functionalized polymer product. The stability additive can be post added to the finished polymer product, added to the reaction vessel prior to inducing functionalization of the non-functionalized polymer, or added at any stage during the functionalization reaction. Methods for forming the composition and using the composition to produce a cellulosic fiber-based medium are also disclosed.
대표청구항▼
1. A method for increasing a storage time for a composition comprising one or more aldehyde-functionalized polymers, the method comprising introducing one or more stabilizing agents to the one or more aldehyde-functionalized polymers, wherein the one or more stabilizing agents is selected from the g
1. A method for increasing a storage time for a composition comprising one or more aldehyde-functionalized polymers, the method comprising introducing one or more stabilizing agents to the one or more aldehyde-functionalized polymers, wherein the one or more stabilizing agents is selected from the group consisting of inorganic salts, organic additives, and any combinations thereof; wherein the storage time is measured relative to a comparable non-stabilized aldehyde-functionalized polymer, and wherein the inorganic salts comprise at least one of the following: MgSO4 and its hydrated forms, MgCl2 and its hydrated forms, Mg(acetate)2 and its hydrated forms, ZnSO4 and its hydrated forms, Na2SO4, NaCl, (NH4)2SO4, and any combination of the foregoing. 2. The method of claim 1, wherein the one or more aldehyde-functionalized polymers within the composition do not exhibit gelling during an extended storage time relative to the comparable non-stabilized aldehyde-functionalized polymer. 3. The method of claim 1, further comprising the steps of: (i) preforming a polymer having one or more aldehyde-reactive moieties, (ii) adding one or more reactive aldehydes to the preformed polymer to form a reaction mixture, (iii) adding the one or more stabilizing agents to the reaction mixture, and (iv) inducing reaction between the preformed polymer and the one or more reactive aldehydes to form the stabilized aldehyde-functionalized polymer composition. 4. The method of claim 1, further comprising the steps of: (i) preforming the polymer having one or more aldehyde-reactive moieties, (ii) adding the one or more reactive aldehydes to the preformed polymer, (iii) inducing reaction between the preformed polymer and the one or more reactive aldehydes to form the one or more aldehyde-functionalized polymers, and (iv) adding the one or more stabilizing agents to the aldehyde-functionalized polymers to form the stabilized aldehyde-functionalized polymer composition. 5. The method of claim 1, further comprising the steps of: (i) preforming the polymer having one or more aldehyde-reactive moieties, (ii) adding the one or more reactive aldehydes to the preformed polymer, (iii) inducing reaction between the preformed polymer and the one or more reactive aldehydes to form the one or more aldehyde-functionalized polymers, and (iv) adding the one or more stabilizing agents step-wise, batch, semi-batch, continuous, or intermittent at any time and at any rate before, during, or after the foregoing steps (i) to (iii).
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (27)
Hagiopol,Cornel; Luo,Yuping; Townsend,David F.; Johnston,James W., Aldehyde scavengers for preparing temporary wet strength resins with longer shelf life.
Hagiopol,Cornel; Luo,Yuping; Townsend,David F.; Johnston,James W.; Ringold,Clay E.; Favors,Karla D., Blends of glyoxalated polyacrylamides and paper strengthening agents.
Carrier Allen M. (Hixson TN) Humphreys Robert W. R. (Annandale NJ) Petersen Paul M. (Three Bridges NJ), Detectable water-treatment polymers and methods for monitoring the concentration thereof.
Ramesh Manian (Lisle IL) Cramm Jeffrey R. (Winfield IL) Werges Darrell L. (Naperville IL) Howland Christopher P. (Aurora IL), Hydrophobically associating dispersants used in forming polymer dispersions.
Underwood Richard T. (Columbus GA) Jasion Robert J. (Columbus GA) Hoke Stephen P. (Columbus GA) Spence Gavin G. (Columbus GA), Method for imparting strength to paper.
Fong Dodd W. (Naperville IL) Hoots John E. (Naperville IL) Johnson Donald A. (Naperville IL) Kneller James (LaGrange Park IL), Modified maleic anhydride polymers and the like for use as scale inhibitors.
Wen Zyo Schroeder ; Daniel Arthur Clarahan ; Mike Thomas Goulet ; Thomas Gerard Shannon, Modified vinyl polymers containing amphiphilic hydrocarbon moieties.
Shannon, Thomas Gerard; Goulet, Mike Thomas; Kass, Dana Stephanie, Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition.
McKay, Jonathan M., Enhanced dry strength and drainage performance by combining glyoxalated acrylamide-containing polymers with cationic aqueous dispersion polymers.
Castro, David J.; Lowe, Robert M.; Liu, Mei, Method of increasing paper bulk strength by using a diallylamine acrylamide copolymer in a size press formulation containing starch.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.