Note: Descriptions are shown in the official language in which they were submitted.
2130876
METHOD OF MANUFACTURING MOLD
PRODUCTS WITH UNUSABLE TIRES
FIELD OF THE INVENTION
The present invention relates to a reproduction process of
lmlls:~hle tires and, more particularly, to the m~nnf~rt~lring method
of the various mold products with different properties from a
mixture of pulverized tire, resins and rhemi~l.s. This
compounded row-material can be turned into a desired product
after the catapulting, extruding, and pressing process.
BACKGROUND OF THE INVENTION
Car industry is globaly recognized as the most productive
and fastest growing industry in this modern society. The cars,
the most useful and essential aid to m~nkind, can offer
convenient transportation, and are closely related to people's
everyday lives. Especially in the society, which requires frequent
traveling, people can not even think about m~i~";l;"i~ their
everyday lives without the cars. But as the car production
grows rapidly, the ~llv~u-l~llent~l pollution caused by the cars has
raised serious problems to us.
Along with the ~llvirorll-l~nt~l pollution caused by the cars,
such as air pollution from the toxic gas or ~h~n(loned cars on
streets, disposing of the used tires is also one of the serious
~nvilolllllent~l pollutions. There have been many efforts to
recycle the tires preventing ~ vi~ Pnt~l pollllt;on and lltili~ing
the valuable energy resource. But unfortunately, the tires have
2130~76
been made into only few types of products, and the portion of
the recycled tires is so small compared to the mass-produced
tires; The tires are cut into narrow pieces and made into
ropes or rubber baskets. Except for the recycling process
above, most of the tires are burned up to ashes in incine dlols.
But also burning the tires not only causes air pollution from
toxic gas, but wastes valuable resources which we can recycle
into a row-material to make various products instead.
Furthermore, buring tires is now prohibited by law and, as a
result, we are facing the new problem of recycling the enormous
amount of the mass-produced tires. If we can transfer the
tires into valuable resources, it can prevent environment~l pollution
and save energy. With the present invention, this can be
possible with the mixture of the pulveriæd tires, resins and
chPmic~l.s. The present invention is surely a break-through to
reduce the pollution, conserve the precious energy, and finally
contribute to the development of the nation's industry.
Trying to find the - solution of the- problems above, the
inventor invested large amount of finance in the research of the
recycling techique of the tires, and finally has come to develop
the reformable row-material which can be applied in many
different areas of our industries.
SUMMARY OF THE INVENTION
It is an object of the present invention to recycle the used
tires into useful resources.
It is another object of the present invention to pl~:ve
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~llvilo~ ent~l pollution from the burning tires and the loss of
energy.
It is further object of the present invention to provide
methods of manllf~rtl1ring the various kind of mold products
which can satisfy many different requir~ments such as a smooth
surface, a strong structure, an elegant appearance and so on.
A method of manllf~ctllring mold products with lml1.s~hle
tires according to the present illv~lllion includes the steps of
mixing pulverized tire, one or more resins selected from the
group of polyl.rol~ylene, low density polyethylene and high density
polyethylene and one or more ~h~mic~ks select~l from the group
of acetone, caustic soda, glass wool, ammonium phosphate, starch
and pigments; melting the mixture at 230C to 350C; and
molding by the catapulting, extruding and pressing process.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In the present invention, the size of the pulverized tire' s
particles is not sperific~lly stated. Therefore, the tires can be
crushed into suitable sized particles according to the purpose of
the targeted products. The proportion of the pulverized tires in
the mixture is not specified, but it is desirable to use 15 to
90 weight percent of the mixture. To crush the tires into
fine particles, the frozen crush technique with the liquid nitrogen
can be more effectively used.
Used or scrapped resins of each kind can replace the above
resins such as polypl ~pylene resin, low density polyethylene resin
and high density polyethylene resin and the cont.~ of the
21~3~7~
above resins are respectively desirably under 50 weight percent
of the composition. Nylon, polyester or other synthPtic resins
can be added or applied to replace the above resins.
One or more chemic~ls among acetone, caustic soda, glass
wool, ammonium phosphate, starch and pigments are used
according to the purpose of the targeted products. For example,
to make the smooth surfaced and strong products such as
construction board, street bricks and boxes, the acetone, caustic
soda, glass wool, ammonium phosphate, starch, and pigmentS are
employed. To make water-purifier-tanks, irrigation pipes and
sewer pipes, acetone, glass wool, ammonium phosphate and starch
are employed. For the application of the flPxihle panels, buckets
and washbasins, caustic soda, glass wool, ammonium phosphate
and starch are applied. In case of the products with elasticity
and high strength such as merli~n strip in highways, acetone,
caustic soda, glass wool, starch, and some pigments are mixed
with the pulverized tire. For the breakwater in seashores,
acetone is used. For the product requiring high hardness and
tensile strength such as a embankmPnt to prevent the l~nrl~lirling
and palettes, glass wool, ammonium phosphate, starch and
pigments are used. For the interior finish work such as bricks
and set building frame which requires good hardness, class wool,
acetone, ammonium phosphate and pi~mentS are needed.
It is difficult to limit the exact weight l.r()~ol Lion of each
~hPmi~ls in the mixture, but it is desirable to use
a~ xi~ t~ly under the 0.5 weight % of the acetone, 0.5
weight % of the c~lstic soda, 30 weight % of the glass wooL
213087fi
5 weight % of the ammonium phosphate, and 15 weight % of
the starch.
The acetone is used as the solvent, and if more than 5
weight % of the weight content is supplied, this can lower the
quality of the product caused by the oversuppling of the solvent.
The caustic soda makes many fine bubbles in the ~ixture to
increase the shock absorbing capability and elasticity of the
product. Oversuppling of the caustic soda (more than 0.5%)
can cause too many bubbles in the product and lower the
quality of the product too. The glass wool increases the
thermal resistance of the product, but over-suppling causes
inferior quality of the product, and it results in difficult, molding
process of the product. The ammonium phosphate increases the
fire-re.sist~nce of the product.
The present invention is illustrated by way of the following
Fx~mples, in which all p~ (%) are by weight unless
otherwise specifie~l
Fx~mple 1
Pulverized used tire 50 %
Polyl,rol~ylene resin 14.25%
Low density polyethylene resin 14.25%
High density polyethylene resin 11.11%
Acetone 0-03 %
Caustic soda 0.06%
Glass wool 5.63 %
213087~
Ammonium phosphate 1.5%
Starch 3.05 %
Pigment 0.12%
This compound substance was m-ixed and heated at 320C
for 3 mimltes and processed through the catapulting, extruding,
and pressing procedures after mPlting.
Materials suitable for various panels, street bricks, and boxes
which have superior quality of high strength and smooth surface
could be produced.
F~mple 2
Pulverized used tire 60%
Polyl.ropylene resin 10 %
Low density polyethylene resin 10%
High density polyethylene resin 10 %
Acetone 0-05 %
Caustic soda 0.06 %
Glass wool 5%
Ammonium phosphate 0.81%
Starch 3 %
pigmPnt 1.08 %
This compound substance was mixed and heated at 320C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after melting.
Materials suitable for the cement bricks, panels or boxes
which are strong and soft-surfaced m~tPri~l could be produced.
2130876
F,x~mple 3
Pulverized used tire 65%
PolylJlopylene resin 5%
Low density polyethylene resin 5%
High density polyethylene resin 13 %
Acetone 0-03 %
Glass wool 7.2%
Ammonium phosphate 0.77 %
Starch 4%
This compound substance was mixed and heated at 320C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after mPlting.
Materials suitable for the water-purifier-tanks, irrigation pipes
and boxes which have superior quality of solidity and smooth
surface could be produced.
F,x~mple 4
Pulverized used tire 70 %
Poly~lopylene resin 10%
Low density polyethylene resin 8%
Caustic soda 0.2%
Glass wool 7%
~mmoni11m phosphate 0.8%
Starch 4%
This compound substance was mixed and heated at 320
2130871~
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after mtqlting.
Smooth and flexible materials such as panels, buckets and
washbasins could be produced.
Fx~mnle S
Pulverized used tire 78.5 %
Polyl.ro~ylene resin 3%
Low density polyethylene resin 3 %
High density polyethylene resin 6%
Acetone 0.15%
Caustic soda 0.3 %
Glass wool 5%
pigmpnt
Starch 0.05 %
This compound substance was mixed and heated at 320C
for 3 m-inutes and processed through the catapulting, extruding,
and pressing procedures after m~lting.
As a result, materials suitable for m~ n strip in highways
and so on which have soft and smooth surface and fl~xihility
could be produced.
Fx~mple 6
Pulverized used tire 75.95%
Poly~rol~ylene resin 12%
2130876
Low density polyethylene resin 12 %
Acetone 0.05 %
This compound substance was mixed and heated at 320C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after m~lting.
As a result, materials suitable for a breakwater in seashores
which have soft and smooth surface and are resistant to
seawater could be produced.
Fx~ml le 7
Pulverized used tire 40%
Polypropylene resin 12 %
Low density polyethylene resin 12 %
High density polyethylene resin 15 %
Glass wool 15%
Arnmonium phosphate 0.9%
Starch 5%
Pigment 0.1%
This compound substance was mixed and heated at 320~C
for 3 minlltes and processed through the catapulting, extruding,
and pressing procedures after melting.
As a result, materials suitable for palettes or a Pmh~nkment
to p~ ~ve~,~ the l~n(l5li~1ing which have good hardness and tensile
strength could be produced. The materials can replace wood
materials or synthetic resins.
213~876
F~Ample 8
Pulverized used tire 40 %
Polypl opylene resin 10.5 %
Low density polyethylene resin 10.5 %
High density polyethylene resin 20 %
Acetone 0.03 %
Glass wool 14.9 %
Ammonium phosphate 0.9%
Starch 3.07 %
Pigment 0.1%
This compound substance was mixed and heated at 320~C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after mPlting.
As a result, materials which have good solidity and tensile
strength and can replace wood materials or synthetic resins could
be produced.
Fx~mllle 9
Pulverized used tire 35 %
Polyl~rol~ylene resin 30 %
High density polyethylene resin 15 %
Glass wool 12 %
Ammonium phosphate 2%
Starch 6%
This compound substance was mixed and heated at 320C
for 3 m~nutes and processed through the catapulting, extruding,
2130876
and pressing procedures after melting.
As a result, materials which h~ve good solidity and tensile
strength and can replace wood materials or synthetic resins could
be produced.
F,~mple 10
Pulverized used tire 24 %
Propylene resin 15 %
Low density polyethylene resin 15 %
High density polyethylene resin 15 %
Glass wool 25 %
Acetone 0-05 %
Ammonium phosphate 0.85 %
Pi ment 0.1%
Starch 5%
This compound substance was mixed and heated at 320~C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after melting.
As a result, materials suitable for interior finish works such
as bricks and set building ~lPments which have smooth and
~leg~nt surface and very high hardness could be produced.
Fx~mple 1 1
Pulverized used tire 25 %
Low density polyethylene resin 45 %
High density polyethylene resin 15 %
Glass wood 14 %
,, 213087G
Acetone 0-03 %
Ammonium phosphate, 0.85 %
Pigm~nt 0.12%
This compound substance was mixed and heated at 320C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after melting
As a result, materials suitable for interior finish works, set
building ~lements~ panels and so on which have smooth and
elegant surface and good hardness could be produced.
Fx~ml-le 12
Pulverized used tire 28 %
PolylJropylene resin 15 %
High density polyethylene resin 42 %
Glass wood 14 %
Acetone 0-03 %
Ammonium phosphate 0.85 %
Pigment 0.12%
This compound substance was mixed and heated at 320C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after mPlting.
As a result, materials s1-i~hle for interior finish works, set
building elements, panels, bricks and so on which have smooth
surface and good hardness could be produced. The materials
can replace wood materials and cement products.
213087~i
Fx~ml~le 13
Pulverized used tire 25 %
PolylJlopylene resin 45%
High density polyethylene resin 15 %
Acetone 0-03 %
Glass wool 14 %
Amrnonium phosphate 0.85 %
Pi~nPnt 0.12 %
This compound substance was mixed and heated at 320~C
for 3 minutes and processed through the catapulting, extruding,
and pressing procedures after m~lting.
The smooth surfaced, elegant in appearance and hard
materials suitable for the high class interior finish works or
repl~Pm~nts of the synthetic resins or woods which require hard
and smooth quality could be produced.
As described above mnkling products m~nllf~ctllred- by the
present invention are available for various kind of use such as
panels, street bricks, guard lanes, palettes, median strip in
highway, breakwater in seashore, irrigation water pipe, emh~nkment
to prevent the l~nrl~ le, sewer / drain pipes, water-purifier tanks,
high class interior finish work, flowerpot and w~hh~sin
In addition, according to the present invention, we can
recycle the tires into the valuable resources and prevent the loss
of energy and ~llvi~`o~ ent~l pollutions from the burning or
abandoning of the tires. Further, producing the beautiful and
strong high quality products from the llnl1s~hle tires can
2130876
contribute to the development of the nation's industry and offer
better quality of living to people.
The present invention is not limited to the embo-liments
described hereinabove. Various modification of disclosed
embo-liments as well as other embolliments of the present
illvellLion will become apparent to persons skilled in the art
upon lefer~llce to the description of the inve~llion. It is
therefore contemplated that the appended claims will cover and
such modifications and embo~im~nts as fall within the true scope
of the illvelllion.
