Elastomeric adhesive
AssigneeKimberly-Clark Worldwide, Inc.
InventorsPeiguang Zhou, Cristian M. Neculescu
Life of this patent
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Abstract
Elastomeric adhesive compositions including a high softening point tackifier resin in combination with a base polymer can be used to create laminates having effective adhesion and elastic properties. The compositions may also include a low softening point additive, and/or an antioxidant. Facing layers, such as nonwoven webs and/or films, can be laminated to both surfaces of the elastomeric compositions to form laminates. A method of making such compositions and laminates involves forming the compositions into elastomeric adhesive films.
Claims66
An elastomeric adhesive composition, comprising:
- a base polymer;
- and
- a high softening point tackifier resin having a softening point of at least 80 degrees Celsius, and a viscosity of at least 1500 cps at 360 degrees Fahrenheit.
An elastomeric laminate, comprising:
- first and second facing sheets;
- and
- an elastomeric adhesive composition between the first and second facing sheets, the elastomeric adhesive composition including a base polymer and a high softening point tackifier resin having a softening point of at least 80 degrees Celsius and a viscosity of at least 1500 cps at 360 degrees Fahrenheit.
A method of making an elastomeric adhesive composition, comprising:
- forming a solid phase composition of a base polymer and a high softening point tackifier resin having a softening point of at least 80 degrees Celsius and a viscosity of at least 1500 cps at 360 degrees Fahrenheit;
- forming a liquid phase composition by heating the solid phase composition;
- forming a film by extruding the liquid phase composition onto a chill roll;
- and
- peeling the film off the chill roll while stretching the film.
Dependencies are inferred from the claim text.