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Release compositions for lignocellulosic composites

A technology of lignocellulose and composites, applied in the field of polyisocyanate adhesives/adhesives, which can solve the problems of production rate reduction and cost effectiveness

Active Publication Date: 2012-05-16
HUNTSMAN INT LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a drop in production rate and thus cost effectiveness due to the need to repeatedly stop production to clean the press platens or / or dies

Method used

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  • Release compositions for lignocellulosic composites
  • Release compositions for lignocellulosic composites
  • Release compositions for lignocellulosic composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Experimental procedure: simulated mold-masking

[0088] Tests were performed to evaluate the "anti-masking" properties of ethoxylated fatty amines. To do this, wood composite panels were pressed against metal shim stock to simulate mold masking. Wood composites were made from a substrate of Southern Ponderosa Pine (Pinus sp.) flakes measuring approximately 100 mm x 500 mm x 1 mm. Utilize 6wt% of The substrate was treated with M polymethylene diphenyl diisocyanate and 0.9% wood product accelerator 25010, both ex Huntsman. The adhesive treated substrate was formed into a 30 x 30 cm pad and placed on top of it were four thin nickel shim tray materials each measuring approximately 13 x 13 cm. The resulting wood composite mat was sprayed with 6.0 grams (at a concentration of 20% solids) of a paraffinic release wax from BYK USA 539 products. Thereafter, two sets of pads were sprayed with 6.0 grams (at a concentration of 20% solids) of anti-masking agent and one set of ...

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Abstract

Lignocellulosic composites are made by pressing a mixture of a particulate lignocellulosic material with polymeric MDI, in the presence of a fatty amine ethoxylate anti- masking agent.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application Serial No. 61 / 187,379, filed June 16, 2009. technical field [0003] Embodiments of the present invention relate generally to polyisocyanate adhesives / adhesives, and more particularly to the use of such adhesives to produce lignocellulosic composites. Background of the invention [0004] Composite panel products such as particleboard, medium density fiberboard (MDF), high density fiberboard (HDF) and oriented strip board (OSB) are used in many applications, to name but a few, for home roofing and flooring, furniture, cabinets , door panels, frames and road signs. Typically, to prepare such composite products, a particulate lignocellulosic (wood) substrate is mixed with a binder and the mixture is placed on a mat or other surface for pressing. Presses such as static or continuous presses may have one or more platens to apply and / or receive pressure. Upon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/00C08G18/48B32B27/00
CPCC08L97/02C08G18/7664C08G18/3275C08H8/00C08L75/04B32B27/00B32B27/06C08G18/00C08L75/00
Inventor R·A·格里格斯比C·J·莫里亚蒂S·N·辛格G·A·史密斯
Owner HUNTSMAN INT LLC
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