Water-based resin composition and articles made therefrom

a technology of water-based resin and composition, which is applied in the direction of organic chemistry, chemistry apparatus and processes, transportation and packaging, etc., can solve the problems of limitation in the nature of the components that may be used, the use of a conventional water-based resin dispersion, and the performance limitation of the articles prepared from a conventional elastomer dispersion
US20090234064A1Inactive Publication Date: 2009-09-17ALLEGIANCE CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
ALLEGIANCE CORP
Publication Date
2009-09-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

An aqueous elastomer dispersion includes a dispersed phase and an aqueous phase. The dispersed phase includes an elastomer including curable aliphatic conjugated-diene elastomers, such as polyisoprene, and a minor amount of at least one additive. The aqueous phase includes water and other optional components in either a soluble state or a dispersion state. The aqueous elastomer dispersion may be prepared by dissolving an elastomer, such as rubber, and additives in a solvent mixture and then converting the resulting solution into an aqueous emulsion. The aqueous emulsion is concentrated and the solvent is stripped from it to yield a dilute latex. The dilute latex that is obtained is concentrated again. Articles made from the aqueous elastomer dispersion include medical gloves, condoms, probe covers, dental dams, finger cots, catheters and the like.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a novel water-based resin composition that includes an aqueous elastomer dispersion. Further, the invention relates to a method of preparing the aqueous elastomer dispersion and articles made from the aqueous elastomer dispersion which provide substantial improvements in performance when compared to those made from conventionally prepared water-based resin compositions.BACKGROUND OF THE INVENTION

[0002] The use of water-based resin dispersions for making articles such as a film, coating, and adhesive provides several advantages when compared to its solvent-based counterpart. In particular, water-based dispersions are environmentally-friendly, easy to formulate, control temperature, and regulate pre-maturation, and have adjustable viscosities.

[0003] However, there are also several disadvantages to using a conventional water-based resin dispersion. For example, there are limits on both the compounding of the dispersion and th...

Claims

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