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Bottle

a transparent or translucent technology, applied in the field of bottles, can solve the problems of remaining cloudy, and achieve the effects of clearer, more transparent, and higher gloss

Inactive Publication Date: 2005-06-30
UNILEVER HOME & PERSONAL CARE USA DIV OF CONOPCO IN C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention relates to a bottle made of a blend of metallocene polyethylene polymer and homopolymer high density polyethylene, which can be used for dispensing liquid household products such as liquid detergents and liquid fabric softeners. The bottle has improved clarity and gloss compared to traditional bottles made of polyethylene. The invention also includes a bottle with a monolayer or multilayer construction, where the outer layer is made of a blend of metallocene polyethylene polymer and homopolymer high density polyethylene. The bottle can be combined with other features such as a downwardly extending body with axially extending side panels fabricated from either a monolayer or multiple layers. The metallocene polyethylene polymer used in the bottle has a density of from about 0.91 g / cm3 to about 0.95 g / cm3 and the homopolymer high density polyethylene has a density of greater than about 0.957 g / cm3. The bottle is suitable for various uses such as liquid fabric softeners, light duty liquid detergents, and foods."

Problems solved by technology

While these bottles are less opaque than those traditionally used, they remain to be cloudy.

Method used

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Examples

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Effect test

example 1

[0072] Example 1 is a bottles having a monolayer structure that is made of a metallocene polyethylene polymer / homopolymer high density polyethylene blend. The metallocene polythylene polymer and homopolymer high density polythylene are both present in the blend at 50% by weight of the blend. The metallocene polyethylene polymer is Atofina Finacene BM359 SG. The homopolymer high density polyethylene used is Atofina Finathene BM961.

example 2

[0073] Example 2 is a bottle having a trilayer structure wherein the outer layer is made of a metallocene polyethylene polymer / homopolymer high density polyethylene blend. The metallocene polyethylene polymer / homopolymer high density polyethylene blend is the same 50 / 50 blend as used in Example 1. The various layers of the bottle are as illustrated in Table 1.

TABLE 1Example 2Outer layer50% metallocene polyethylene150% homopolymer high density polyethylene2Middle layer25% PCR350% regrind425% virgin HDPE5Inner layerVirgin HDPE5

1Metallocene polyethylene is Finacene BM359 SG by Atofina.

2Homopolymer high density polyethylene is Finathene BM961 by Atofina.

3Grade 1 PCR homopolymer by KR Plastics.

4Regrind is a blend of the other ingredients of the respective sample.

5Paxon AM55-003.

[0074] In example 2 the outer and inner layers have a thickness of 10% of the total wall thickness. The middle layer has a thickness of 80% of the total wall thickness.

[0075] It was surprisingly found that...

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Abstract

The present invention relates to transparent or translucent bottles comprising a blend of metallocene polyethylene and a homopolymer high density polyethylene. The bottles may be either monolayer or multilayered. The bottle is surprisingly clear, has superior light transmittance in the visible light spectrum and has superior gloss.

Description

FIELD OF THE INVENTION [0001] The present invention relates to transparent or translucent bottles comprising a blend of metallocene polyethylene and a homopolymer high density polyethylene. BACKGROUND OF THE INVENTION [0002] One popular form of laundry detergent is the heavy duty laundry liquid. Its popularity is due in part to the convenience of the product form, in particular the ability to apply the detergent readily to soiled areas of the clothes. The popularity of laundry liquids has created a need for more convenient containers for dispensing these products. [0003] Laundry liquid detergents have traditionally been sold in opaque bottles. These bottles have been improved over time to incorporate measuring cups serving as closures, and fitments incorporating drainage mechanisms and pouring spouts. Bottles that are less opaque than those traditionally used have been placed on the market recently. While these bottles are less opaque than those traditionally used, they remain to be...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08L23/06C08L23/08
CPCC08L23/06C08L23/0815Y10T428/1352C08L2666/06
Inventor GIBLIN, EDWARD JOHNSIMON, JAIMEE TERESEPAULOVICH, JOHN MICHAEL
Owner UNILEVER HOME & PERSONAL CARE USA DIV OF CONOPCO IN C
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