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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0701259 (2003-11-04) |
등록번호 | US-7316842 (2008-01-08) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 9 인용 특허 : 386 |
High-viscosity elastomeric adhesive compositions including a high softening point tackifier resin in combination with a base polymer can be used to create elastomeric composite laminates having effective adhesion and elastic properties. The elastomeric adhesive compositions suitably have a viscosity
High-viscosity elastomeric adhesive compositions including a high softening point tackifier resin in combination with a base polymer can be used to create elastomeric composite laminates having effective adhesion and elastic properties. The elastomeric adhesive compositions suitably have a viscosity between about 100,000 and about 500,000 cps at between about 300 degrees Fahrenheit (149 degrees Celsius) and about 350 degrees Fahrenheit (177 degrees Celsius). Facing layers, such as nonwoven webs, films, elastic strands, fastening material, absorbent material, and the like, can be laminated to one or both surfaces of the elastomeric compositions to form elastomeric composite laminates. A method of making such compositions and laminates involves forming the compositions into elastomeric adhesive films and/or strands.
What is claimed is: 1. An elastomeric composite laminate, comprising: at least one facing sheet; and an elastomeric adhesive composition self-adhered to the at least one facing sheet, the elastomeric adhesive composition including a base polymer and a high softening point tackifier resin having a s
What is claimed is: 1. An elastomeric composite laminate, comprising: at least one facing sheet; and an elastomeric adhesive composition self-adhered to the at least one facing sheet, the elastomeric adhesive composition including a base polymer and a high softening point tackifier resin having a softening point of about 80 degrees Celsius or greater and a viscosity of about 1500 cps or greater at 182 degrees Celsius, wherein the elastomeric adhesive composition has a viscosity between about 100,000 and about 500,000 cps at between about 149 and about 177 degrees Celsius; wherein the adhesive composition further comprises an absorbent material. 2. The elastomeric composite laminate of claim 1, wherein the at least one facing sheet comprises a nonwoven web selected from a spunbond web, a meltblown web, and combinations thereof. 3. The elastomeric composite laminate of claim 1, wherein the at least one facing sheet comprises a film. 4. The elastomeric composite laminate of claim 1, wherein the at least one facing sheet comprises an elastomeric material. 5. The elastomeric composite laminate of claim 1, wherein the at least one facing sheet comprises a fastener component. 6. The elastomeric composite laminate of claim 1, wherein the base polymer is present in the composition in an amount between about 50% and about 75% by weight. 7. The elastomeric composite laminate of claim 1, wherein the base polymer comprises at least one of the group consisting of polystyrene-polyethylene-polypropylene-polystyrene (SEPS) block copolymer, styrene-isoprene-styrene (SIS) block copolymer, styrene-butadiene-styrene (SBS) block copolymer, styrene-ethylene-butylene-styrene (SEBS) block copolymer, ethylene-propylene-diene (EPDM) copolymers, thermoplastic polyurethane, and combinations thereof. 8. The elastomeric composite laminate of claim 1, wherein the high softening point tackifier is present in the composition in an amount between about 20% and about 40% by weight. 9. The elastomeric composite laminate of claim 1, wherein the high softening point tackifier comprises at least one type of hydrocarbon selected from the group consisting of petroleum distillates, rosin, rosin esters, polyterpenes derived from wood, polyterpenes derived from synthetic chemicals, and combinations thereof. 10. The elastomeric composite laminate of claim 1, further comprising a low softening point additive having a softening point of about 60 degrees Celsius or less and a viscosity of about 1000 cps or less at 182 degrees Celsius, present in an amount between about 0% and about 20% by weight. 11. The elastomeric composite laminate of claim 1, wherein the composition is applied as at least one of the group consisting of: a plurality of extruded strands, an extruded film, a melt-blown web, a foam, a plurality of beads, and combinations thereof. 12. The elastomeric composite laminate of claim 1, further comprising: a garment incorporating the elastomeric composite laminate into a structure of the garment. 13. The elastomeric composite laminate of claim 12, wherein the garment is one selected from the group consisting of personal care garments, medical garments, and industrial workwear garments. 14. The elastomeric composite laminate of claim 1, wherein the base polymer has a styrene content of between about 10% and about 45% by weight. 15. The elastomeric composite laminate of claim 1, wherein the base polymer has a styrene content of between about 18% and about 30% by weight. 16. The elastomeric composite laminate of claim 1, wherein the base polymer has a Shore A hardness of about 20 to about 90. 17. The elastomeric composite laminate of claim 1, wherein the base polymer has a Shore A hardness of about 30 to about 80. 18. The elastomeric composite laminate of claim 10, wherein the low softening point additive is present at up to about 20% by weight of the adhesive composition. 19. The elastomeric composite laminate of claim 10, wherein the low softening point additive comprises a tackifier or wax having a softening point below 80�� C. and a viscosity of less than 100 cps at 182�� C. 20. The elastomeric composite laminate of claim 1, wherein the adhesive composition has an elongation-to-break of about 500% to about 1300%. 21. The elastomeric composite laminate of claim 1, wherein the adhesive composition has an elongation-to-break of about 600% to about 1200%. 22. The elastomeric composite laminate of claim 1, wherein the adhesive composition is formed as a combination of a plurality of extruded strands and an extruded film. 23. The elastomeric composite laminate of claim 1, further comprising a plurality of elastomeric polymer strands adhered to and partially embedded in the adhesive composition. 24. The elastomeric composite laminate of claim 23, wherein the elastomeric polymer strands are laid out periodically. 25. The elastomeric composite laminate of claim 23, wherein the elastomeric polymer strands are laid out non-periodically. 26. The elastomeric composite laminate of claim 23, wherein the elastomeric polymer strands comprise a thermoplastic elastomer. 27. The elastomeric composite laminate of claim 23, wherein the elastomeric polymer strands comprise a thermosetting elastomer. 28. The elastomeric composite laminate of claim 23, wherein the elastic polymer strands are in a stretched state during formation of the laminate. 29. The elastomeric composite laminate of claim 1, further comprising a second facing sheet. 30. The elastomeric composite laminate of claim 1, wherein the facing sheet is necked. 31. The elastomeric composite laminate of claim 1, wherein the facing sheet is gathered. 32. The elastomeric composite laminate of claim 1, wherein the absorbent material comprises cellulose fluff. 33. The elastomeric composite laminate of claim 1, wherein the absorbent material comprises a superabsorbent material. 34. The elastomeric composite laminate of claim 1, wherein the laminate has varied tension. 35. The elastomeric composite laminate of claim 1, wherein the at least one facing sheet comprises an absorbent material. 36. An elastomeric composite laminate, composing: at least one facing sheet; and an elastomeric adhesive composition self-adhered to the at least one facing sheet, the elastomeric adhesive composition including a base polymer and a high softening point tackifier resin having a softening point of about 80 degrees Celsius or greater and a viscosity of about 1500 cps or greater at 182 degrees Celsius, wherein the elastomeric adhesive composition has a viscosity between about 100,000 and about 500,000 cops at between about 149 and about 177 degrees Celsius; wherein the adhesive composition is formed as a combination of a plurality of extruded strands and an extruded film, both the strands and the film comprise the adhesive composition.
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