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Elastomer composition comprising polyolefin elastomers

A technology of polyolefin elastomer and composition, which is applied in the direction of synthetic resin layered products, chemical instruments and methods, layered products, etc., and can solve the problems of increasing costs, etc.

Inactive Publication Date: 2017-02-15
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While these materials deliver certain hysteresis properties, there is still room for improvement without significantly increasing the cost of manufacturing the materials

Method used

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  • Elastomer composition comprising polyolefin elastomers
  • Elastomer composition comprising polyolefin elastomers
  • Elastomer composition comprising polyolefin elastomers

Examples

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Embodiment

[0101] The polyolefin elastomers coded A to G, the styrene block copolymer coded H and the elastomer compositions coded Examples 1-10 prepared by blending polyolefin elastomers A to G were accepted as follows Tests 1-4 were performed and recorded in Table 1 below. The compositions of the polyolefin elastomers A to G are described in detail below. The examples except Example H were provided as films having a basis weight of 40 gsm.

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Abstract

Disclosed is an elastomer composition comprising polyolefin elastomer material which exhibits improved hysteresis properties, said elastomer composition having the following properties: (1) an average integrated enthalpy sum of no greater than 17 J / g according to the Thermal Analysis Method defined herein; (2) an average integrated enthalpy ratio of from 0.6 to 300 according to the Thermal Analysis Method defined herein; (3) an unload stress at 75% strain of above 0.8 MPa according to the Hysteresis Test defined herein; and (4) a load stress / unload stress ratio at 75% strain of 1 to 2.6 according to the Hysteresis Test defined herein.

Description

technical field [0001] The present invention relates to an elastomer composition comprising a polyolefin elastomer exhibiting improved hysteresis properties. Background technique [0002] Elastomeric materials, especially elastic films, are commonly used in numerous applications. For example, absorbent articles typically contain one or more components that rely on film materials, particularly elastic film materials, to control the movement of liquids and provide a comfortable, snug fit when the article is worn by the wearer. Typical ways of incorporating elastic material into absorbent articles are through the waistband, leg elastics, side panels, elastic bands, stretch outer cover or stretch ears. Hysteresis behavior, ie loaded or unloaded performance in tensile testing, is a good measure of how a product will perform, and hysteresis behavior is often related to the elastic material used in the article. [0003] Conventional elastic film materials made from styrenic block...

Claims

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Application Information

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IPC IPC(8): C08L23/00C08L23/14C08L23/16B32B27/32B32B27/20
CPCB32B27/20B32B27/32B32B27/327B32B2250/242B32B2307/724C08J5/18C08J2323/00C08J2323/14C08J2423/14C08L23/00C08L23/14C08L23/142C08L2203/16C08L2205/025C08L2205/03C08L2205/035
Inventor U·P·达拉尔R·D·德里D·H·梅利克K·R·科伯恩
Owner THE PROCTER & GAMBLE COMPANY