Stretchable absorbent composite with low superaborbent shake-out
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/15
A61F-013/20
C08L-083/00
C09D-151/00
출원번호
UP-0883174
(2004-06-30)
등록번호
US-7772456
(2010-08-30)
발명자
/ 주소
Zhang, Xiaomin
Jackson, David Martin
Jacobsen, Lisa Marie
Qin, Jian
Soerens, Dave Allen
출원인 / 주소
Kimberly-Clark Worldwide, Inc.
대리인 / 주소
Yee, Paul Y.
인용정보
피인용 횟수 :
44인용 특허 :
246
초록▼
An article comprises a stretchable absorbent composite (30) that includes a quantity of superabsorbent particles (32) which are operatively contained within a matrix of elastomeric polymer fibers (34). In particular aspects, the composite article can include at least about 60 wt % of the superabsorb
An article comprises a stretchable absorbent composite (30) that includes a quantity of superabsorbent particles (32) which are operatively contained within a matrix of elastomeric polymer fibers (34). In particular aspects, the composite article can include at least about 60 wt % of the superabsorbent particles and not more than about 40 wt % of the elastomeric polymer fibers, based on a total weight of the composite. In other aspects, the composite article can provide a high stretchability. Additional aspects can provide a low shake-out. Particular configurations can, for example, provide a stretchability value of at least about 30%. Additional aspects can include a configuration that provides a shake-out value of not more than about 2%. In further aspects, the absorbent composite can include superabsorbent particles having a coating of treatment-material that is thermally processible. Additional aspects can include a treatment-material which is water soluble.
대표청구항▼
The invention claimed is: 1. An article comprising, a stretchable absorbent composite including a quantity of superabsorbent particles which have a substantially continuous thermoplastic coating and are operatively contained within a matrix of elastomeric polymer fibers, wherein said composite incl
The invention claimed is: 1. An article comprising, a stretchable absorbent composite including a quantity of superabsorbent particles which have a substantially continuous thermoplastic coating and are operatively contained within a matrix of elastomeric polymer fibers, wherein said composite includes at least about 60 wt % of the superabsorbent particles and not more than about 40 wt % of the elastomeric polymer fibers, based on a total weight of the composite; wherein said thermoplastic coating includes at least one material selected from the group consisting of polyethylene oxide, polypropylene oxide, ethylene oxide-propylene oxide copolymer, polyethylene glycol, polypropylene glycol, ethylene glycol-propylene glycol copolymer, modified polysaccharides, such as hydroxypropyl cellulose, methyl cellulose, methyl ethyl cellulose, polyethylene imine, and combinations thereof; wherein said superabsorbent with said thermoplastic coating exhibits a centrifuge retention capacity of at least about 15 g/g; and wherein said thermoplastic coating has a melting-point temperature of at least 60° C. and not more than 150° C.; said composite provides a stretchability value of at least about 30% and a shake-out value of not more than about 2%; and the elastomeric polymer fibers have been produced from a polymer material having a melt flow rate of at least about 100 g/10 min. 2. The article as recited in claim 1, wherein said composite provides a shake-out value of not more than about 1.2%. 3. The article as recited in claim 1, wherein said composite provides a shake-out value of not more than about 0.8%. 4. The article as recited in claim 1, wherein said composite article includes at least about 5 wt % of the elastomeric polymer fibers. 5. The article as recited in claim 1, wherein said polymer fibers include an olefin elastomer material. 6. The article as recited in claim 1, wherein said polymer fibers include a surfactant. 7. The article as recited in claim 1, wherein said polymer fibers include at least about 0.1 wt % of an operative surfactant, based on a total weight of the polymer fibers and surfactant. 8. The article as recited in claim 1, wherein the composite further includes an amount of cellulosic fibers and the amount of cellulosic fibers is at least about 5 wt %, and up to about 35 wt %, based on the total weight of the composite. 9. The article as recited in claim 1, wherein said superabsorbent particles have a Thermal Stickiness Index at least about 40 and a Centrifuge Retention Capacity value at least about 20 g/g. 10. The article as recited in claim 1, wherein said superabsorbent particles have a Thermal Stickiness Index at least about 60 and a Centrifuge Retention Capacity value at least about 20 g/g. 11. The article as recited in claim 1, wherein said superabsorbent particles have a Thermal Stickiness Index at least about 80 and a Centrifuge Retention Capacity value at least about 20 g/g. 12. The article as recited in claim 1, wherein said polymer fibers have a fiber diameter which is not more than a maximum of about 20 μm and not less than a minimum of about 8 μm. 13. The article as recited in claim 1, wherein not more than about 20 wt % of said polymer fibers have a fiber diameter which is larger than about 20 μm; and not more than about 20 wt % of said polymer fibers have a fiber diameter which is less than about 8 μm. 14. The article as recited in claim 1, wherein said composite provides a shake-out value of not more than about 1.2%; and said polymer fibers have been produced from a quantity of polymer-melt processed at a temperature of at least about 200° C. 15. The article as recited in claim 1, wherein said superabsorbent particles have been combined with said polymer fibers during a formation of the polymer fibers, and the formation of the polymer fibers has included a meltblowing operation. 16. The article as recited in claim 1, wherein the composite article has a stretchability value of at least about 50%. 17. The article as recited in claim 1, wherein the composite article has a stretchability value of up to about 300% or more. 18. The article as recited in claim 1, further including a liquid-permeable topsheet and a backsheet; wherein the matrix of elastomeric polymer fibers and the superabsorbent particles are operatively sandwiched between the topsheet and backsheet. 19. The article as recited in claim 1, wherein the absorbent composite includes at least about 5 wt % and not more than about 25 wt % of the elastomeric polymer fibers, and includes not more than about 15 wt % of cellulosic fibers, based on the total weight of the absorbent composite; the absorbent composite further includes a surfactant; the thermoplastic coating is thermally processible and water soluble; the elastomeric polymer fibers have been produced from a quantity of polymer-melt having a temperature of at least about 200° C. and not more than about 315° C.
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이 특허에 인용된 특허 (246)
Georger William A. (Dunwoody GA) Jones Mark F. (Huntersville NC) Kopacz Thomas J. (Omro WI) Zelazoski Gregory A. (Woodstock GA), Abrasion resistant fibrous nonwoven composite structure.
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Tanzer Richard W. (Neenah WI) Abuto Frank P. (Alpharetta GA) Kellenberger Stanley R. (Appleton WI) Laux Daniel R. (Appleton WI) Nortman Brian K. (Appleton WI) Pomplun William S. (Nennah WI) Rippl Car, Absorbent article which includes superabsorbent material and hydrophilic fibers located in discrete pockets.
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Gupta, Rakesh Kumar; George, Scott Ellery; Klosiewicz, Daniel William; Seo, Kab Sik; Fleenor, Coralie McKenna; Crain, Allen Lynn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Gupta, Rakesh Kumar; George, Scott Ellery; Klosiewicz, Daniel William; Seo, Kab Sik; Fleenor, Coralie McKenna; Crain, Allen Lynn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Gupta, Rakesh Kumar; George, Scott Ellery; Klosiewicz, Daniel William; Seo, Kab Sik; Fleenor, Coralie McKenna; Crain, Allen Lynn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Gupta, Rakesh Kumar; George, Scott Ellery; Klosiewicz, Daniel William; Seo, Kab Sik; Fleenor, Coralie McKenna; Crain, Allen Lynn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Haile, William Alston; George, Scott Ellery; Hale, Wesley Raymond; Jenkins, Waylon Lewellyn, Water-dispersible and multicomponent fibers from sulfopolyesters.
Dallas, Andrew J.; Ding, Lefei; Joriman, Jon D; Zastera, Dustin; Giertz, James R.; Kalayci, Veli E.; Chung, Hoo Y., Web comprising fine fiber and reactive, adsorptive or absorptive particulate.
Dallas, Andrew J.; Ding, William Lefei; Joriman, Jon D.; Zastera, Dustin; Giertz, James R.; Kalayci, Veli E.; Chung, Hoo Y., Web comprising fine fiber and reactive, adsorptive or absorptive particulate.
Dallas, Andrew J.; Ding, William Lefei; Joriman, Jon D.; Zastera, Dustin; Giertz, James R.; Kalayci, Veli E.; Chung, Hoo Y., Web comprising fine fiber and reactive, adsorptive or absorptive particulate.
Dallas, Andrew J.; Ding, William Lefei; Joriman, Jon D.; Zastera, Dustin; Giertz, James R.; Kalayci, Veli E.; Chung, Hoo Y., Web comprising fine fiber and reactive, adsorptive or absorptive particulate.
Gupta, Rakesh Kumar; Mitchell, Melvin Glenn; Klosiewicz, Daniel William; Clark, Mark Dwight; Anderson, Chris Delbert; Mitchell, Marvin Lynn; Mitchell, Paula Hines; Wolfe, Amber Layne, Wet-Laid process to produce a bound nonwoven article.
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