Patent US3735793A successfully refreshed from Google Patents.
Patent EP0397110B1 successfully refreshed from Google Patents.
EP0397110B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Absorbent material
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1990-05-08
•
Granted: 1996-07-31
•
Expires: 2010-05-08
Abstract
Abstract An absorbent article includes a retention portion for storing absorbed liquids, and a distinctive surge management portion. The surge management portion, which has a selected basis weight, is constructed to rapidly uptake and temporarily hold at least three (3) successive surges of liquid directed into the target zone of the article and then release each of the surges to the retention portion. The retention portion desorbs each input of liquid from the surge management portion and stores the liquid. Particular functional and structural parameters can further characterize the surge management portion of the absorbent article.
Inventors
- 👤 Margaret Gwyn Latimer
- 👤 Billie Jean Matthews
- 👤 Ann Marie Shershin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:39
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/537; A61F13/5376; A61F13/45; A61F13/49; A61F13/49007; A61F13/49009; A61F13/535; A61F13/15577; A61F13/15585; A61F13/51; A61F13/511; A61F13/539; A61F13/15203; A61F2013/15284; A61F2013/15406; A61F13/4902; A61F2013/49031; A61F2013/51059; A61F2013/51066; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/51411; A61F2013/51441; A61F2013/51443; A61F13/51474; A61F2013/51486; A61F2013/5149; A61F2013/530007; A61F2013/530131; A61F2013/530226; A61F2013/530255; A61F2013/530262; A61F2013/53027; A61F2013/530277; A61F2013/530299; A61F2013/530343; A61F2013/53035; A61F2013/530481; A61F2013/530569; A61F2013/530583; A61F2013/530613; A61F2013/530868; A61F2013/530927; A61F2013/530934; A61F2013/530941; A61F2013/53445; A61F13/53708; A61F2013/53721; A61F2013/53795
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
221 words
An absorbent article having a front waistband region (12), a back waistband region (14) and a crotch region (16) interconnecting said front and back waistband regions, said article comprising: a backsheet (30); a liquid permeable topsheet (28) superposed on said backsheet (30); a retention portion (48), which is positioned between said backsheet (30) and topsheet (28) for holding and storing a liquid; a fibrous surge management means (46) located in liquid communication with said retention portion (48) for receiving said liquid and for temporarily holding and releasing said liquid to said retention portion (48), said surge management means (46) having a basis weight of at least 60g/m 2 , characterized in that said surge management means (46) has a density and fabric structure which resists collapsing and preserves a void volume capacity for successive receipts of said liquid when said surge management means (46) is wetted, said surge management means (46) providing an uptake time value of not more than about 12 seconds and a liquid residual value of not more than about one gram per gram of said surge management means (46), and said surge management means (46) is constructed and arranged to provide said uptake time value and said liquid residual value over at least three uptake and desorption cycles with each cycle conducted with 100ml of synthetic urine.
Claim 2
Dependent Claim
44 words
An absorbent article as recited in claim 1, wherein said surge management means (46) is constructed to further provide a temporary loading value of at least about 3g per gram of said surge management means (46) over at least three uptake and desorption cycles.
Claim 3
Dependent Claim
31 words
An absorbent article as recited in claim 1 or 2 wherein said surge management means (46) has a basis weight of within a range of about 90 to 300g/m 2 .
Claim 4
Dependent Claim
31 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide an uptake time of not more than about 10 seconds.
Claim 5
Dependent Claim
31 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide an uptake time of not more than about 8 seconds.
Claim 6
Dependent Claim
36 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a temporary loading value of at least about 6g of said surge management means (46).
Claim 7
Dependent Claim
36 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a temporary loading value of at least about 9g of said surge management means (46).
Claim 8
Dependent Claim
38 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a residual value of not more than about 0.75g per gram of said surge management means (46).
Claim 9
Dependent Claim
38 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a residual value of not more than about 0.5g per gram of said surge management means (46).
Claim 10
Dependent Claim
31 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) has a length which is less than a length of said retention portion (48).
Claim 11
Dependent Claim
31 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) has a width which is less than a width of said retention portion (48).
Claim 12
Dependent Claim
40 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) provides a wettable fiber-surface-area value of greater than zero and less than about 70m 2 per 100g of said surge management means (46).
Claim 13
Dependent Claim
42 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a wettable fiber-surface-area value (per 100g of said surge management means (46)) which is not more than about 54m 2 .
Claim 14
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a wettable-surface-area-times-density value of greater than zero and not more than about 7m 2 /100cm 3 of said surge management means (46).
Claim 15
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a wettable-surface-area-times-density value of greater than zero and not more than about 5m 2 /100cm 3 of said surge management means (46).
Claim 16
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a wettable-surface-area-times-density value of greater than zero and not more than about 4m 2 /100cm 3 of said surge management means (46).
Claim 17
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a total fiber-surface-area value which is within the range of about 5 to 90m 2 /100g of said surge management means (46).
Claim 18
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a total fiber-surface-area value which is within the range of about 3 to 54m 2 /100g of said surge management means (46).
Claim 19
Dependent Claim
43 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a total fiber-surface-area value which is within the range of about 12 to 54m 2 /100g of said surge management means (46).
Claim 20
Dependent Claim
40 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a nonwettable-surface-area-times-density value which is not more than about 1.1m 2 /100cm 3 of said surge management means (46).
Claim 21
Dependent Claim
40 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a nonwettable-surface-area-times-density value which is not more than about 0.71m 2 /100cm 3 of said surge management means (46).
Claim 22
Dependent Claim
42 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is constructed to provide a wettable fiber-surface-area value within the range of about 3 to 54m 2 per 100g of the surge management means (46).
Claim 23
Dependent Claim
28 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) has a basis weight of at least about 100g/m 2 .
Claim 24
Dependent Claim
25 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) is offset toward said front waistband region (12).
Claim 25
Dependent Claim
38 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) extends through an entire thickness of an absorbent structure provided by said retention portion (48) and said surge management means (46).
Claim 26
Dependent Claim
30 words
An absorbent article as recited in one of the preceding claims, wherein said retention portion (48) includes a recess area which at least partially surrounds said surge management means (46).
Claim 27
Dependent Claim
41 words
An absorbent article as recited in one of the preceding claims, wherein said surge management means (46) includes a proportion of first fibers; and a proportion of second fibers which are relatively larger, stiffer fibers, as compared to said first fibers.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.