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coating plastics



Hi Everyone,

This is an interesting press release from down under.


Janet Clark

>Date: Tue, 28 Apr 1998 10:05:59 -0300
>Subject: CSIRO Australia - Media Release 98/85
>
>>                          CSIRO Media Release
>>                          ---------------------------------
>>                          Ms Wendy Parsons   (02) 6276-6615
>>      [CSIRO Australia]
>>                          Mobile             (0419) 208-194
>>                          Fax                (02) 6276-6821
>>                          ---------------------------------
>>      23 April 1998
>>                                                    Ref 98/85
>> 
>>      ------------------------------------------------------------
>> 
>>                POLYMER BREAKTHROUGH SOLVES A STICKY PROBLEM
>> 
>>      ------------------------------------------------------------
>> 
>>      A world breakthrough in polymer technology by CSIRO
>>      scientists has beaten one of the most intractable problems
>>      of modern plastics and paints - how to stick them together
>>      in a nearly unbreakable bond.
>> 
>>      The revolutionary SICOR technology will also help the
>>      plastics and paints industries to attain higher
>>      environmental standards by eliminating the need for damaging
>>      solvents and ozone-depleting chemicals, while at the same
>>      time reducing costs.
>> 
>>      In another major application, SICOR will for the first time
>>      enable waste polyethylene, which normally clogs up city
>>      landfills, to be efficiently recycled for new uses -
>>      lowering both the energy use and greenhouse emissions
>>      involved in plastics production.
>> 
>>      The Chief of CSIRO Building Construction and Engineering, Mr
>>      Larry Little, says that SICOR is already being introduced in
>>      the Australian automotive industry, to bond paint to the
>>      surface of moulded polymer vehicle parts, and plastics
>>      mouldings to metal panels.
>> 
>>      "SICOR is a revolutionary technique for engineering the
>>      surface of polymers, especially substances like
>>      polypropylene and polyethylene, which have traditionally
>>      been difficult to bond," Mr Little says.
>> 
>>      "Tests show that it bonds automotive paints to moulded
>>      polymer parts like bumper bars so strongly that the polymer
>>      itself will break before the paint can be pulled from the
>>      surface.
>> 
>>      "In one trial SICOR was used to stick plastic mouldings to
>>      the sides of a Holden Carprice which then underwent 40,000
>>      kilometres of road testing, much of it on very rough
>>      terrain. At the end of the test, it proved impossible to
>>      remove the mouldings without damaging the door panels."
>> 
>>      Mr Little says that the potential uses for SICOR are very
>>      wide, and include building products, defence equipment, the
>>      vehicle industry, packaging and biomedical uses.
>> 
>>      "We are confident this technology will bring hundreds of
>>      millions of dollars worth of export revenue to Australia,"
>>      he says.
>> 
>>      Already, a $16 million licencing agreement has recently been
>>      signed with a US building products company.
>> 
>>      "One of SICOR's most important features, in addition to
>>      adhesion strength and environmental benefit, is the fact
>>      that it reduces cost by allowing the use of cheaper
>>      materials, more efficient processes compared to plasma
>>      treatment and increased shelf-life of treated products," Mr
>>      Little says.
>> 
>>      The SICOR technique can easily be integrated into existing
>>      manufacturing systems, treating polymeric products at speeds
>>      up to 300 metres a minute. Once a product has been treated,
>>      any future bond with paint or plastic will be equally strong
>>      whether the adhesive or paint is applied at once - or 12
>>      months later.
>> 
>>      Project leader Dr Voytek Gutowski explains that what makes
>>      SICOR so attractive is the way it modifies the surface
>>      characteristics of the product without affecting the bulk
>>      properites of the material in a simple continuous process.
>> 
>>      A CSIRO pilot plant to prove the effectiveness of SICOR for
>>      the automotive industry was established in Melbourne in
>>      January 1997. Its results support a successful trial of the
>>      technology by General Motors Holden, which included the
>>      40,000 km road test.
>> 
>>      Validation tests also proved the ability of SICOR to
>>      significantly exceed the bodyside moulding adhesion
>>      specifications of Ford Australia.
>> 
>>      More information:
>> 
>>           Dr Voytek Gutowski, CSIRO 03 9252 5000
>>           Mr Damien Thomas, CSIRO 03 9252 6050
>>           email : Damien.Thomas@dbce.csiro.au
>> 
>>      ------------------------------------------------------------
>> 
>>             Media Releases: [All] [1998] [Topics] [Search]
>> 
>>      ------------------------------------------------------------
>> 
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>>            Updated 23 April 1998 - Jenifer.North@cc.csiro.au
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