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US 2020/0222579 A1Published application
Topsheet laminates with tackifier-free adhesive
AssigneeThe Procter & Gamble Company
InventorRobert Haines TURNER
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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.
Claims20
An absorbent article comprising:
- a liquid permeable topsheet;
- a liquid impermeable backsheet;
- an absorbent core positioned at least partially intermediate the liquid permeable topsheet and
- the liquid impermeable backsheet, wherein the absorbent core defines a pair of channels;
- and
- an acquisition layer positioned between the topsheet and the absorbent core;
- wherein the topsheet and the acquisition layer are joined by an adhesive to form a laminate;
- wherein the laminate comprises a morphological treatment;
- wherein the adhesive comprises:
- an amorphous polyolefin composition;
- and
- a heterophase polyolefin composition comprising amorphous character and crystalline blocks;
- and
- wherein the adhesive is substantially tackifier-free.
11 more elements
An absorbent article comprising:
- a liquid permeable topsheet;
- a liquid impermeable backsheet;
- an absorbent core positioned at least partially intermediate the liquid permeable topsheet and
- the liquid impermeable backsheet, wherein the absorbent core defines a pair of channels;
- and
- an acquisition layer positioned between the topsheet and the absorbent core;
- wherein the topsheet and the acquisition layer are joined by an adhesive to form a laminate;
- wherein the laminate comprises a morphological treatment;
- wherein the adhesive consists 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;
- and
- wherein the adhesive is substantially tackifier-free.
11 more elements
Dependencies are inferred from the claim text.