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Rubber extraction method

a technology of extraction method and rubber, which is applied in the direction of transportation and packaging, special tyres, tyre parts, etc., can solve the problems of affecting the quality of rubber, affecting the molecular weight of rubber, and consuming a lot of water,

Inactive Publication Date: 2021-03-25
LION FLEX BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This method produces high-quality rubber with higher molecular weight, reduces energy and water consumption, and allows for closed nutrient cycles, making it more efficient and environmentally friendly compared to prior art methods.

Problems solved by technology

Prior art methods for harvesting rubber from plants are characterized by drawbacks in that they are cumbersome, water and energy consuming, lead to inferior rubber quality, and / or cannot be up scaled.
Likewise, US2007 / 0276112 discloses a process of recovering rubber from rubber-bearing plants that involves mechanical extraction, which negatively affects the rubber molecular weight, and thus the rubber quality.
This method however is highly water consuming, particularly when up scaled, and thus environmentally unfriendly.
In other words, the (organic) input may remain stationary throughout the process, thus not requiring moving parts and resulting in low system maintenance and repair costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

[0078]45 netted bags containing roots of Taraxacum koksaghyz (TKS) were fermented using a dry fermenter. The 45 netted bags (allowing passage of fermentation culture) were filled with recently harvested roots that were:

[0079]1) untreated;

[0080]2) mechanically macerated by using a hammer;

[0081]3) boiled in water;

[0082]4) cut in small pieces (˜2-8 mm); or

[0083]5) cut in large pieces (˜2-4 cm).

[0084]For each treatment nine bags were prepared with approximately 275 gram root material. The fermenter was filled with the bags, grass silage, and a fermentation culture (obtained from cow dung used in earlier fermentation steps using only grass silage). The silage and the fermentation culture was added between the bags.

[0085]Of the 45 bags:[0086]15 bags (3 per treatment) were taken out of the fermenter after 2 weeks;[0087]15 bags (3 per treatment) after 3 weeks; and[0088]15 bags (3 per treatment) after one month.

[0089]The fermentation was carried out by using a dry anaerobic digestor (custom ...

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Abstract

The present invention relates to a method for obtaining rubber from rubber-containing plant material, the method comprising the steps of subjecting a composition comprising rubber-containing plant material and a fermentation culture to conditions allowing anaerobic fermentation, wherein the composition preferably has a water content of less than 95 wt. %. The fermentation preferably does not involve movement of the rubber-containing plant material (or parts thereof), and preferably the fermentation is performed in the absence of oxygen ventilation. Additionally, it is preferred that the fermentation culture is cycled through the composition by percolation. A further step of the method involves obtaining the rubber from the composition.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 15 / 773,024 filed May 2, 2018 which is the National Phase of International Patent Application No. PCT / NL2016 / 050763, filed Nov. 3, 2016, published on May 11, 2017 as WO 2017 / 078522 A1, which claims priority to Netherlands Patent Application No. 2015711, filed Nov. 3, 2015. The contents of these applications are herein incorporated by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates to a specific method for obtaining rubber from rubber-containing plant material.BACKGROUND OF THE INVENTION[0003]Prior art methods for harvesting rubber from plants are characterized by drawbacks in that they are cumbersome, water and energy consuming, lead to inferior rubber quality, and / or cannot be up scaled.[0004]For instance, Eskew (Rubber Chemistry and Technology 19 (3), 856-864, 1946) discloses an elaborate rubber-recovery process comprising several water-...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08C1/04C08C1/14C08C2/00C08L7/00C08L9/00C08C1/02C08C4/00
CPCC08C1/04C08C1/14C08C2/00B60C1/00C08L9/00C08C1/02C08C4/00C08L7/00Y02W30/62
Inventor DIJK, PETER JOHANNES VANMANK, ROLF ANDRÉ
Owner LION FLEX BV