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Esterified lignocellulosic materials and methods for making them

A wood, dimensional technology, applied in the direction of wood heating, tool making, wood impregnation, etc.

Inactive Publication Date: 2012-11-28
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also still a need for efficient and cost-effective esterification methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0065] Embodiment 3, the specific sampling of plate A

[0066] location and location Depth (inches) Bonded Acetyl Percentage I 1 / 8 20.06 I 1 / 4 19.59 I 3 / 8 19.84 II 1 / 8 20.23 II 1 / 4 18.69 II 3 / 8 19.19 III-1A * 20.23 III-1B * 18.69 III-2A * 19.19 III-2B * 20.23 III-3A * 18.69 III-3B * 19.19 IV-1 * 19.92 IV-2 * 19.72 IV-3 * 19.35 V-1 * 18.88 V-2 * 17.92 V-3 * 18.81

[0067] Depth values ​​with "*" refer to samples drilled through the entire thickness of the plate rather than to a specific depth.

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PUM

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Abstract

Methods of making esterified lignocellulosic materials and resulting compositions and articles are disclosed.

Description

Background of the invention [0001] Esterified lignocellulosic materials, such as acetylated wood, are desirable in some applications due to greater dimensional stability than untreated lignocellulosic materials and because of other qualities. These advantages exist both for esterification of solid wood, such as acetylated wood planks and lumbers, and for acetylation of small particle size lignocellulosic materials that are subsequently used in composites. However, there is still a need to improve the beneficial properties of these materials. There also remains a need for efficient and cost-effective esterification processes. There also remains a need for an esterification process that provides a high degree of esterification and consistency of the degree of esterification in a given batch. Summary of the invention [0002] The invention provides a method comprising the steps of: [0003] impregnating the lignocellulosic material with a liquid comprising acetic anhydride t...

Claims

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Application Information

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IPC IPC(8): B27K3/36
CPCB27K3/346B05D1/36B27K3/0278B05D3/04C08L1/12B27K3/50B27K3/0271B05D1/18B05D3/0433B05D7/06B05D3/0453B27K5/001C08L97/02C08B3/06C08H8/00B27K3/36B05D1/60Y10T428/662
Inventor J.E.小费尔蒂T.L.吉恩D.C.斯潘塞J.M.艾伦
Owner EASTMAN CHEM CO
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