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Polyolefin elastomer blends for elastomeric films

A technology of polyolefin elastomer and thermoplastic elastomer, applied in the field of thermoplastic elastomer compound, can solve problems such as high cost and change

Pending Publication Date: 2020-06-26
埃万特公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the downside, using materials other than SIS may require cost-prohibitive changes to existing manufacturing equipment or processes

Method used

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  • Polyolefin elastomer blends for elastomeric films
  • Polyolefin elastomer blends for elastomeric films
  • Polyolefin elastomer blends for elastomeric films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0095] Non-limiting examples of thermoplastic elastomer compounds of various embodiments of the present invention are provided.

[0096] Table 2 below shows the sources of ingredients for the thermoplastic elastomer compounds of the comparative examples and examples.

[0097]

[0098] Examples of thermoplastic elastomer compounds were compounded and extruded into pellets on a twin screw extruder under typical mixing and extrusion conditions. The extruded pellets were then formed into plaques or films and the recorded properties were evaluated.

[0099] Table 3 below shows the formulations and certain properties of Comparative Examples A to C.

[0100]

[0101] Table 4 below shows the formulations and certain properties of Comparative Examples D to G.

[0102]

[0103]

[0104]

[0105]

[0106] Table 5 below shows the formulations and certain properties of Examples 1 to 3.

[0107]

[0108]

[0109] Table 6 below shows the formulations and certain pr...

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Abstract

A thermoplastic elastomer compound includes a polyolefin elastomer blend of at least two different polyolefin elastomers, styrene-ethylene / butylene- styrene block copolymer, and plasticizer. The compound has a Melt Flow Rate (230 deg C, 2.16 kg) of no less than about 5 g / 10 min and a Melt Flow Rate (190 deg C, 2.16 kg) of no less than about 1 g / 10 min. Elastomeric films formed from the compound can be used in place of elastomeric films based on styrene- isoprene- styrene (SIS) block copolymers to make components of disposable hygiene articles.

Description

[0001] priority claim [0002] This application claims the benefit of priority to U.S. Provisional Patent Application Serial No. 62 / 584,705, Attorney Docket No. 12017026, filed November 10, 2017, which is hereby incorporated by reference in its entirety. [0003] field of invention [0004] The present invention relates to thermoplastic elastomer compounds comprising polyolefin elastomer blends. The invention also relates to elastic films, which can be used for the production of components of disposable hygiene articles. [0005] Background of the invention [0006] There is a need for disposable hygiene articles and related personal care products. In general, disposable hygiene articles may include: baby care products, such as disposable diapers; adult incontinence care products, such as disposable underwear; and feminine care products, such as disposable sanitary pads. [0007] Disposable hygiene articles generally comprise one or more components made from elastic films. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L53/00C08L25/06E21B33/12
CPCC08L23/142C08L25/06C08L53/025B32B2270/00B32B2274/00B32B27/302B32B27/08B32B27/32B32B27/22B32B2555/02B32B2307/54B32B27/20B32B2307/536C08L2205/02C08L2205/035C08L2205/025C08K5/01C08K5/0025C08L23/0815C08L23/14C08L23/16C08L23/20C08L25/08C08L53/00C08L2203/02C08L2203/16C08L2207/04
Inventor K·沙C·克鲁兹
Owner 埃万特公司