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Biolaminate composite assembly and related methods

Inactive Publication Date: 2010-01-21
BIOVATION LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PVC (polyvinylchloride) and formaldehyde-based laminate worksurfaces and components are now being removed from many applications due to their toxic nature.

Method used

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  • Biolaminate composite assembly and related methods
  • Biolaminate composite assembly and related methods
  • Biolaminate composite assembly and related methods

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0102]PLA pellets were placed into an extruder with temperatures settings 20° F. above the melting point at 420° F. which is also recommended by Natureworks for processing temperature. The material poured out of the die like honey sticking to the die. The temperature was dropped to 310° F., over 80° F. lower than its melting point. The RPM was increased to add shear input to the material. The resultant shape held its complex shape with minimal distortion.

example 2

[0103]PLA pellets were placed into an extruder using a sheet die with processing temperatures of 380 to 420° F. and a clear sheet was produced. The sheet was brittle and easily cracked when bent. The resultant sheet was flat laminated onto a wood particleboard using a heat activated glue under heat and pressure using a hot press with temperature of 150° F. and pressures under 50 PSI. The material showed very good adhesion to the substrate.

[0104]The same sheet as above was laminated using a cold laminating method commonly used for HPL using a PVA and cold press laminating method. The PLA biolaminate sheet did not have any adhesion to the substrate and was easily pulled away.

[0105]PLA pellets were placed into a open twinscrew extruded and processing temperatures were lowered to 320° F. and material pulled out of the extruder through the vent before the die section.

[0106]PLA was placed into an extruder and processed at temperatures below 330° F. well below the melting point using a she...

example 3

[0118]A soybean wax was added to the PLA at 5% and extruded through a profile die. The temperature was dropped to 290° F. and the material was a smooth high integrity shaped with good melt strength sufficient to hold a profile shape. Shear was increased and the shape was improved and smoothness of surface was also improved. The hot shaped article was pulled onto a conveyor belt with no changes in shape from the die.

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Abstract

Embodiments of the invention relate to a biolaminate composite assembly, including one or more biolaminate layers, a non-plastic rigid substrate and an adhesive layer in contact with the substrate and the one or more biolaminate layers. The one or more biolaminate layers is laminated or formed to the substrate.

Description

PRIORITY OF INVENTION[0001]This non-provisional application claims the benefit of priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application Ser. No. 61 / 038,971, filed Mar. 24, 2008, which is herein incorporated by reference in its entirety.BACKGROUND[0002]The environmental movement in the United States and abroad continues to grow into a mainstream concern with growing demand for environmentally friendlier (“green”) products and programs to remove hazardous materials from the residential and workplace environment. PVC (polyvinylchloride) and formaldehyde-based laminate worksurfaces and components are now being removed from many applications due to their toxic nature. Many businesses and organizations are taking aggressive action to remove PVC and formaldehyde-based products from the interior workplace and product lines.[0003]The demand continues to grow for “green” products to replace petrochemical plastics and hazardous polymer. This demand is driven by environmental ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B32B3/00B32B21/04B32B29/00B32B15/04B32B37/00
CPCY10T428/24909Y10T428/24983Y10T156/10Y10T428/24802Y10T428/24934B32B37/14B32B27/06Y10T428/24777C08K5/00Y10T428/24917Y10T428/24628Y10T428/24868B32B27/36B32B9/02B32B9/045B32B13/12B32B21/02B32B21/08B32B21/14B32B23/08B32B27/10B32B27/20B32B27/304B32B27/306B32B27/32B32B27/40B32B2250/40B32B2262/101B32B2270/00B32B2307/306B32B2307/41B32B2307/412B32B2307/514B32B2307/554B32B2307/558B32B2307/704B32B2471/00B32B2479/00B32B2607/02Y02P20/582Y10T428/31989Y10T428/31678Y10T428/31982Y10T428/31978Y10T428/31993Y10T428/31786B32B7/12C08L67/04
Inventor RIEBEL, MICHAELRIEBEL, MILTON
Owner BIOVATION LLC
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