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US 6,213,993 B1Granted
Self-adhering absorbent article
AssigneeKimberly-Clark Worldwide, Inc.
InventorsDuane Kenneth Zacharias, Yung Hsiang Huang, Frank Gerald Druecke
Life of this patent
Estimating the term…
Abstract
An absorbent article is provided having an adhesive on the bodyfacing surface for securement of the article to the wearer. The adhesive has a rheological property tan δ at 20° C. ranging from about 0.01 to about 0.6 at a frequency of about 0.1 radian per second and a tan δ ranging from about 0.1 to about 1.7 at a frequency of about 1000 radians per second. Preferably the adhesive is a hot melt adhesive.
Claims9
An absorbent article comprising:
- a) a cover having a bodyfacing surface with a predetermined area and a garmentfacing surface;
- b) an absorbent core adjacent to said garmentfacing surface of said cover;
- and
- c) a hot melt, pressure sensitive adhesive secured to less than about 90 percent of said bodyfacing area, said adhesive selected from the group consisting A-B-A block copolymers and A B-B-A block copolymors, wherein A is a block polymer of mono-vinyl substituted aromatic hydrocarbon and B is an elastomeric block polymer of a conjugated diene and having a Lan δ at a frequency of about 0.1 radians per second to about 1000 radians per second residing inside a quadrangle ABCD wherein said quadrangle ABCD is defined by graphically plotting frequency in radians per second verse tan δ referenced to about 20° Centigrade of said adhesive, said quadrangle ABCD having as points A and D a tan δ of about 0.06 and 0.4 respectively at a frequency of about 0.1 radians pet second and points B and C at a tan δ of about 0.1 and about 1.7 respectively at a frequency of about 1000 radians per second.
1 more element
An absorbent article comprising:
- a) a cover having a bodyfacing surface with a predetermined area and a garmentfacing surface;
- b) an absorbent core adjacent to said garmentfacing surface of said cover;
- and
- c) a hot melt, pressure sensitive adhesive secured to less than about 90 percent of said bodyfacing area, said adhesive having a tan δ at a frequency of about 0.1 radians per second to about 1000 radians per second residing inside a quadrangle ABCD wherein said quadrangle ABCD is defined by graphically plotting frequency in radians per second verse Lan δ referenced to about 20° Centigrade of said adhesive, said quadrangle ABCD having as points A and D a tan δ of about 0.06 and 0.4 respectively at a frequency of about 0.1 radians pet second and points B and C at a tan δ of about 0.1 and about 1.7 respectively at a frequency of about 1000 radians per second, and said adhesive having a primary transition frequency peak greater than about 1000 radians per second.
1 more element
An absorbent article comprising:
- a) a cover having a bodyfacing surface with a predetermined area and a garmentfacing surface;
- b) an absorbent core adjacent to said garmentfacing surface of said cover;
- and
- c) a hot melt, pressure sensitive adhesive secured to less than about 90 percent of said bodyfacing area, said adhesive having a tan δ at a frequency of about 0.1 radians per second to about 1000 radians per second residing inside a quadrangle ABCD wherein said quadrangle ABCD is defined by graphically plotting frequency in radians per second verse tan δ referenced to about 20° Centigrade of said adhesive, said quadrangle ABCD having as points A and D a tan δ of about 0.06 and 0.4 respectively at a frequency of about 0.1 radians pet second and points B and C at a tan δ of about 0.1 and about 1.7 respectively at a frequency of about 1000 radians per second, and said adhesive having a secondary peak between a frequency range of about 0.1 and about 1000 radians per second.
1 more element
An absorbent article comprising:
- a) a cover having a bodyfacing surface with a predetermined area and a garmentfacing surface;
- b) an absorbent core adjacent to said garmentfacing surface of said cover;
- and
- c) a hot melt, pressure sensitive adhesive secured to less than about 90 percent of said bodyfacing area, said adhesive selected from the group consisting of block copolymers of styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylenepropylene-styrene, styrene-ethylenebutylene-styrene, and styrene-ethylenepropylene-styrene-ethylenepropylene and having a tan δ at a frequency of about 0.1 radians per second to about 1000 radians per second residing inside a quadrangle ABCD wherein said quadrangle ABCD is defined by graphically plotting frequency in radians per second verse tan δ referenced to about 20° Centigrade of said adhesive, said quadrangle ABCD having as points A and D a tan δ of about 0.06 and 0.4 respectively at a frequency of about 0.1 radians pet second and points B and C at a tan δ of about 0.1 and about 1.7 respectively at a frequency of about 1000 radians per second.
1 more element
Dependencies are inferred from the claim text.