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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0274795 (2008-11-20) |
등록번호 | US-8323257 (2012-12-04) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 265 |
An absorbent article may comprise a topsheet, a backsheet joined with the topsheet, an absorbent core interposed between the topsheet and backsheet; and a slow recovery stretch laminate. The slow recovery stretch laminate may be joined to one or more article elements selected from the group consisti
An absorbent article may comprise a topsheet, a backsheet joined with the topsheet, an absorbent core interposed between the topsheet and backsheet; and a slow recovery stretch laminate. The slow recovery stretch laminate may be joined to one or more article elements selected from the group consisting of the topsheet, the backsheet, the core, an anal cuff, an elasticized topsheet, a fastening system, a leg cuff, a waist elastic feature, a side panel, an ear, and combinations thereof. The slow recovery stretch laminate may exhibit an unload force at 37° C. of about 0.16 N/(g/m) or greater and a percent of initial strain after 15 seconds of recovery at 22° C. of about 10% or greater. And, the slow recovery stretch laminate may comprise an elastic member that was pretreated prior to and/or during draw down of the elastic member.
1. A package of absorbent articles, comprising: a plurality of absorbent articles contained within the package, wherein each absorbent article in the package comprises: a) a topsheet;b) a backsheet joined with the topsheet;c) an absorbent core interposed between the topsheet and backsheet; andd) an
1. A package of absorbent articles, comprising: a plurality of absorbent articles contained within the package, wherein each absorbent article in the package comprises: a) a topsheet;b) a backsheet joined with the topsheet;c) an absorbent core interposed between the topsheet and backsheet; andd) an article element;wherein at least one article element for each absorbent article in the package comprises a slow recovery stretch laminate exhibiting an unload force at 37° C. of about 0.16 N/(g/m)or greater and a percent of initial strain after 15 seconds of recovery at 22° C. of about 10% or greater;wherein the slow recovery stretch laminate exhibits a percent coefficient of variation of greater than zero and less than about 15% for the unload force at 37° C. and a percent coefficient of variation of greater than zero and less than about 15% for the initial strain after 15seconds of recovery at 22° C.; andwherein the slow recovery stretch laminate is produced in a continuous process. 2. The package of absorbent articles of claim 1 wherein the article element is selected from the group consisting of an anal cuff, an elasticized topsheet, a fastening system, a leg cuff, a waist elastic feature, a side panel, an ear, an outer cover, and combinations thereof. 3. The package of absorbent articles of claim 1 wherein the slow recovery stretch laminate for each of the absorbent articles within the package exhibits a percent of initial strain after 15 seconds of recovery at 22° C. of about 30% or greater. 4. The package of absorbent articles of claim 1 wherein the slow recovery stretch laminate for each of the absorbent articles within the package exhibits a percent of initial strain after 15 seconds of recovery at 32° C., wherein the difference of the percent of initial strain after 15 seconds of recovery at 22° C. and the percent of initial strain after 15 seconds of recovery at 32° C. is greater than about 5%. 5. The package of absorbent articles of claim 1 wherein the slow recovery stretch laminate for each of the absorbent articles within the package comprises a) at least a first substrate having a first surface and a second surfaceb) at least one elastic member joined or attached to the first surface of the substrate. 6. The package of absorbent articles of claim 5 wherein the slow recovery stretch laminate for each of the absorbent articles within the package further comprises a second substrate having a first surface and a second surface, wherein the elastic member is joined to the first surface of the second substrate such that the elastic member is disposed between the first substrate and the second substrate. 7. The package of absorbent articles of claim 5 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package is joined or attached to the first surface of the substrate via a method selected from the group consisting of adhesive bonding, thermal bonding, pressure bonding, ultrasonic bonding, and combinations thereof. 8. The package of absorbent articles of claim 5 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package comprises a) about 20% to about 100% of at least one elastomeric polymer,b) optionally, about 0.01% to about 60% of at least one modifying resin; andc) optionally, about 0.01% to about 60% of at least one additive. 9. The package of absorbent articles of claim 8 wherein the elastomeric polymer is selected from a group comprising styrenic block copolymers, natural and synthetic rubbers, polyisoprene, neoprene, polyurethanes, silicone rubbers, hydrocarbon elastomers, ionomers, and combinations thereof. 10. The package of absorbent articles of claim 9 wherein the elastomeric polymer is a block copolymer comprising at least one substantially soft block and at least one substantially hard block. 11. The package of absorbent articles of claim 8 wherein the modifying resin for each of the absorbent articles within the package is selected from a group comprising unhydrogenated C5 hydrocarbon resins or C9 hydrocarbon resins, partially and fully hydrogenated C5 hydrocarbon resins or C9 hydrocarbon resins; cycloaliphatic resins; terpene resins; polystyrene and styrene oligomers; poly(t-butylstyrene) or oligomers thereof; rosin and rosin derivatives; coumarone indenes; polycyclopentadiene and oligomers thereof; polymethylstyrene or oligomers thereof; phenolic resins; indene polymers, oligomers and copolymers; acrylate and methacrylate oligomers, polymers, or copolymers; derivatives thereof; and combinations thereof. 12. The package of absorbent articles of claim 5 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package is in a form selected from a group comprising a film, a strand, a band, a cross-hatch array, a foam, and combinations thereof. 13. The package of absorbent articles of claim 5 wherein the first substrate for each of the absorbent articles within the package is selected from a group comprising nonwoven webs, woven webs, knitted fabrics, films, film laminates, apertured films, nonwoven laminates, sponges, foams, scrims, and combinations thereof. 14. The package of absorbent articles of claim 1 wherein each of the absorbent articles within the package is selected from a group comprising diapers, training pants, pull-on garments, refastenable pants, adult incontinence products, or feminine care products. 15. The package of absorbent articles of claim 5 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package is pretreated prior to and/or during draw down of the elastic member. 16. The package of absorbent articles of claim 15 wherein the pretreatment of the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package is selected from a group comprising heating, prestretching, incrementally stretching, and combinations thereof. 17. The package of absorbent articles of claim 16 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package is heated to a temperature from about 30 to about 100° C. prior to and/or during draw down of the elastic member. 18. The package of absorbent articles of claim 5 wherein the elastic member of the slow recovery stretch laminate for each of the absorbent articles within the package exhibits one or more of the following: (i) a yield stress drop of about 0.3 MPa or less at the characteristic strain rate and characteristic temperature of the stretching process;(ii) a percent yield stress drop of about 30 percent or less at the characteristic strain rate and characteristic temperature of the stretching process;(iii) a yield stress drop of about 0.15 MPa or less at the initial tensile strain rate equal to the characteristic strain rate of the stretching process and at the characteristic temperature of the stretching process; and(iv) a percent yield stress drop of about 20 percent or less at the initial tensile strain rate equal to the characteristic strain rate of the stretching process and at the characteristic temperature of the stretching process. 19. The package of absorbent articles of claim 1 wherein the slow recovery stretch laminate exhibits a percent coefficient of variation of greater than zero and less than about 10% for the unload force at 37° C. and a percent coefficient of variation of greater than zero and less than about 10% for the initial strain after 15 seconds of recovery at 22° C. 20. An absorbent article comprising: a) a topsheet;b) a backsheet joined with the topsheet;c) an absorbent core interposed between the topsheet and backsheet; andd) an article element selected from the group consisting of an anal cuff, an elasticized topsheet, a fastening system, a leg cuff, a waist elastic feature, a side panel, an ear, an outer cover, and combinations thereof;wherein said article element comprises a slow recovery stretch laminate exhibiting an unload force at 37° C. of about 0.16 N/(g/m) or greater and a percent of initial strain after 15 seconds of recovery at 22° C. of about 10% or greater;wherein the slow recovery stretch laminate comprises an elastic member that is pretreated prior to and/or during draw down of the elastic member; andwherein the slow recovery stretch laminate is produced in a continuous process.
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