Abstract: Described herein is an adhesive composition including (a) from about 70 wt. % to about 90 wt. % of one or more copolymers, and (b) from about 10 wt. % to about 30 wt. % of one or more heterophase copolymers. The one or more copolymers include (i) from about 30 mole % to about 70 mole % of monomer units selected from the group consisting of ethylene, 1-butene, and mixtures thereof; and (ii) from about 30 mole % to about 70 mole % of propene monomer units. The adhesive composition is free of polyisobutylene. The adhesive composition has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C. The one or more heterophase copolymers includes a first heterophase copolymer and a second heterophase copolymer.

Abstract: A hotmelt composition comprises at least three co-polymers defined by their chemistry and molecular weight. The hotmelt composition may be without tackifiers. The hotmelt can be used in absorbent articles such as diapers comprising two substrates at least partially attached by the hotmelt composition. The hotmelt provides especially good nonwoven-nonwoven bond and nonwoven-film bond.

Abstract: Stretch laminate hot melt adhesives and stretch laminates are described. The stretch laminate hot melt adhesives are suitable for adhering elastic materials with inelastic substrates, and allow permanent deformation of the inelastic substrate and extensions and retractions of the elastic materials. The stretch laminate hot melt adhesive is particularly suitable for back ear lamination for disposable absorbent articles.

Abstract: Disposable absorbent articles assembled from a collection of components using an adhesive having an amorphous polyolefin composition with a random butane-?-olefin copolymer and a heterophase polyolefin copolymer composition with a first set of comonomer units and a second set of comonomer units, wherein the first set of comonomer units are propene.

Abstract: A disposable absorbent article for wearing about the lower torso of a wearer is provided. The disposable absorbent article has a chassis including: a topsheet; a backsheet containing a polymeric film; and an absorbent core disposed between the topsheet and the backsheet. The polymeric film is at least 20 mm more narrow than the chassis. The disposable absorbent article has an opacity strengthening patch disposed on the backsheet, wherein the opacity strengthening patch is connected to one of the group consisting of the leg gasketing system, the polymeric film layer, and the backsheet by an adhesive. The adhesive includes: an amorphous polyolefin composition and a heterophase polyolefin composition having an amorphous character and crystalline blocks. The adhesive is substantially tackifier-free.

Abstract: Disposable absorbent articles assembled from a collection of components using an adhesive comprising an amorphous polyolefin composition and a heterophase polyolefin composition comprising amorphous character and crystalline blocks.

Abstract: A method of assembling an absorbent article having the steps of: a) providing a hot melt adhesive composition, wherein the adhesive has an amorphous polyolefin composition with more than 40% 1-butene and from about 10 wt. % to about 50 wt. % of a second amorphous polymer, and wherein the hot melt adhesive composition comprises less than 5% of a tackifier; b) providing a plurality of absorbent article components; and c) joining at least one of the absorbent article components to another of the absorbent article components using the adhesive so as to assemble the absorbent article.

Abstract: An absorbent article comprising at least one stretchable laminate comprising a first nonwoven, a second nonwoven, and an elastic film therebetween, wherein each of the first and second nonwovens is adhesively bonded to the film by a hot melt adhesive; wherein the film is no thicker than about 60 micrometers; wherein at least one of the nonwovens is spunbonded; wherein the laminate is activated with a minimum of about 290% applied strain and a minimum strain rate of about 850/sec; and wherein the laminate is substantially free from pinholes.

Abstract: Absorbent articles having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core positioned at least partially intermediate the liquid permeable topsheet and the liquid impermeable backsheet is presented. The absorbent article further has an acquisition layer positioned between the topsheet and the absorbent core. The topsheet and the acquisition layer are joined by an adhesive to form a laminate, wherein the adhesive is substantially tackifier-free.

Abstract: An article with an absorbent core having a first absorbent layer and a second absorbent layer is presented. The first absorbent layer has a first substrate and the second absorbent layer has a second substrate. The core includes superabsorbent polymer material deposited on the first and second substrates. A fiberized net structure covers the absorbent polymer material on the first and second substrates. The fiberized net structure includes a substantially tackifier-free adhesive.

Abstract: Pull-on disposable absorbent articles with elastomeric belts are provided. The elastomeric belts include an outer nonwoven, an inner nonwoven, and elastic strands disposed therebetween. The elastomeric belts further have a front belt portion having a front waist edge, and front left and right side edges, and a rear belt portion having a rear waist edge and rear left and right side edges. An adhesive bonds at least one of the group consisting of the belt structure to the central chassis; the belt structure outer nonwoven to the belt structure inner nonwoven; the elastic strands to the belt structure nonwovens; and the respective front and rear left side edges and the front and rear right side edges. The adhesive is substantially tackifier-free.

Abstract: Disposable absorbent articles assembled from a collection of components using an adhesive consisting essentially of an amorphous polyolefin composition comprising more than 40% 1-butene and a second amorphous polymer comprising at least one butene monomer, the polymer having a molecular weight (MWn) of at least 1000, wherein the polymer is compatible with the polyolefin.

Abstract: Described herein is an absorbent article including (a) an absorbent core, a first nonwoven material, a second nonwoven material, and a bond area; and (b) a polymeric filler composition disposed within the bond area. The polymeric filler composition has less than 1% of a tackifier. The polymeric filler composition is chosen from a propylene butene copolymer, a polypropylene homopolymer, a propylene ethylene copolymer, and mixtures thereof. The polymeric filler composition has a Tensile Strength at Yield of from about 0.5 MPa to about 10 MPa. The bond area has a Peak Peel Strength of from about 0.1 N/cm to about 9 N/cm after exposure to a skin-protecting material for 24 hours.

Abstract: An absorbent article comprising a first nonwoven material joined to a second nonwoven material by at least one bond area, wherein a polymeric filler composition is disposed within the bond area and the composition comprises at least one polymer selected from the group consisting of polypropylene homopolymers, propylene-ethylene copolymers, and mixtures thereof, wherein the composition is substantially free of tackifiers. It was found that such polymer filler compositions having a Toughness of at least 25 MPa, as measured according to the Extensional Test Method described herein, provide bonds with good resistance to peel creep force.

Abstract: A method of creating a topsheet for an absorbent article is disclosed. The method includes the steps of: obtaining a pre-cursor web of material, the pre-cursor web of material having a first surface and an opposing second surface, wherein the pre-cursor web of material is a composite or laminate web having a first layer and a second layer, wherein the first layer is a film and the second layer is a nonwoven material having a plurality of fibers; forming a first plurality of apertures having sidewalls extending in a first direction from the pre-cursor web of material; forming a second plurality of apertures having sidewalls extending in a second direction from the pre-cursor material, wherein the first direction and the second direction are different; and forming a plurality of embossments in the pre-cursor web of material, wherein the embossments are oriented in a third direction opposite the first direction.

Abstract: Described herein is an absorbent article having an absorbent core. The absorbent core includes a superabsorbent polymer material and a superabsorbent polymer immobilizing material. The superabsorbent polymer immobilizing material includes from about 20% to about 70% of a first polymer and from about 30% to about 80% of a second polymer. The superabsorbent polymer immobilizing material has a Shear Viscosity at 10 (1/s) at 230° C. of from about 300 mPa·s to about 10,000 mPa·s.

Abstract: Described herein is an absorbent article. The absorbent article includes an assembly of components and an adhesive composition joining at least two of the assembly of components together. The adhesive composition includes from about 70 wt. % to about 90 wt. % of one or more copolymers and from about 10 wt. % to about 30 wt. % of one or more heterophase copolymers. The one or more copolymers include from about 30 mole % to about 70 mole % of monomer units selected from ethylene, 1-butene, and mixtures thereof. The one or more copolymers also include from about 30 mole % to about 70 mole % of propene monomer units. The adhesive composition is free of polyisobutylene and has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C.

Abstract: Described herein is an adhesive composition including (a) from about 70 wt. % to about 90 wt. % of one or more copolymers, and (b) from about 10 wt. % to about 30 wt. % of one or more heterophase copolymers. The one or more copolymers include (i) from about 30 mole % to about 70 mole % of monomer units selected from the group consisting of ethylene, 1-butene, and mixtures thereof; and (ii) from about 30 mole % to about 70 mole % of propene monomer units. The adhesive composition is free of polyisobutylene. The adhesive composition has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C. The one or more heterophase copolymers includes a first heterophase copolymer and a second heterophase copolymer.

Abstract: Described herein is an adhesive composition including a copolymer. The adhesive composition has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C. The adhesive composition has a Storage Modulus at 37° C. of from about 3 MPa to 9.5 MPa. The adhesive composition has a Yield Stress at 37° C. of from about 0.8 MPa to about 1.45 MPa.

Abstract: Described herein is an absorbent article having a longitudinal centerline and a lateral centerline, a front waist region with a front waist edge, a rear waist region with a rear waist edge, a crotch region disposed between the front waist region and the rear waist region, and two spaced apart longitudinal side edges joining the front waist edge to the rear waist edge, wherein the absorbent article comprises an assembly of components, and wherein the absorbent article comprises an adhesive composition. The adhesive composition comprises a copolymer; the adhesive composition has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C., the adhesive composition has a Storage Modulus at 37° C. of from about 3 MPa to 9.5 MPa, and the adhesive composition has a Yield Stress at 37° C. of from about 0.8 MPa to about 1.45 MPa.