[Strawbale] 1. Fwd: Re: Lego blocks from Straw (RT)

[jos stoffels]

The patent in europe can only be based on the intelligent idea of
compressing vegetable material in to a bloc system however the form of a
lego bloc might give a problem with lego

the patent of compressing straw under heat is no longer possible  we have
had in europe for more than 30 years a product Stramit from the UK;

at present there is a product called ,,ekopanely,,from CZ

kind regards jos


On Fri, Dec 18, 2009 at 4:59 PM, Dave Howorth <dave at howorth....uk> wrote:

> On Fri, 2009-12-18 at 13:07 +0100, Marc Huebner wrote:
> > Hi
> >
> > This idea is qite interesting.
> > Does anybody know what kind of glue the guys from oryzatech are using?
> >
> > I found a website:
> >
> >
> http://www.treehugger.com/files/2009/10/oryzatech-strawbale-lego-blocks-for-grown-ups.php
> >
> > where they say that they are using "an undisclosed binding agent"...."
> are squished under pressure at temps of about 120 to 175 °C (250 to 350° F)"
>
> The patent says that the binder is optional, and says "the binder may
> be selected from the group consisting of aluminum hydroxide, magnesium
> hydroxide, clay, kaolin, bitumen, and most preferably borax (a natural
> product composed of hydrated sodium borate, sometimes referred to as or
> including sodium borate decahydrate, sodium diborate, tincal,
> tincalconite, tincar, hydrated sodium boration, sodium tetraborate,
> rasorite, or Sporax®). The moisture inhibitor may be selected from the
> group consisting of paraffin wax, silica gel (a non-toxic,
> non-corrosive form of silicon dioxide synthesized from sodium silicate
> and sulfuric acid and processed into granular or beaded form),
> molecular sieve (a uniform network of crystalline pores and empty
> adsorption cavities derived from sodium, potassium or calcium
> crystalline hydrated aluminosilicates), activated clay (a layered
> structure of activated (bentonite) clay that is a naturally occurring,
> non-hazardous and salt-free substance), bitumen, and most preferably
> borax."
>
>  http://www.patentstorm.us/patents/6951080/description.html
>
> An undisclosed binder would invalidate the patent, would it not? The
> whole point of a patent is to gain complete disclosure of the invention.
>
> It will be interesting to see if they apply for anything other than a
> US patent. I'm not sure it is non-obvious enough for other regimes.
>
> Cheers, Dave
>
>
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