Title of Invention	METHOD OF MANUFACTURING INSULATED FOAMED PRODUCT
Abstract	The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF.The production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is relatively simple technique by means of which wide variety of hallow articles can be produced wherein the mold is rotated continuously about its vertical and horizontal axes.

Title of Invention

METHOD OF MANUFACTURING INSULATED FOAMED PRODUCT

Abstract

The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF.The production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is relatively simple technique by means of which wide variety of hallow articles can be produced wherein the mold is rotated continuously about its vertical and horizontal axes.

Full Text	FORM 2 THE PATENT ACT 1970 (39 of 1970) & The Patents Rules, 2003 COMPLETE SPECIFICATION (See section 10 and rule 13) 1. TITLE OF THE INVENTION: PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF 2. APPLICANT: (a) NAME: Goplani Ramesh Parashram (b) NATIONALITY: an Indian (c) ADDRESS: F/901, Samrajya, 0pp. Shakamba Party Plot, Memnagar, Ahmedabad - 380 052 Gujarat, India. The following specification particularly describes the invention and the manner in which it is to be performed. The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF. The production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is a relatively simple technique by means of which a wide variety of hollow articles can be produced. With this technique a hollow mould can be rotated around various axes. During rotation the plastic material that has previously been introduced into the hollow mould is distributed uniformly over the internal surface of the hollow mould. The hollow mould is also heated during the operation, such that the distributed plastic material melts and acquires a uniform smooth contour. The plastic material formed in this way is then cooled, after which the hollow mould is opened in order to remove the product. Using this process hollow plastic article can be produced in a relatively simple mould. Thin wall plastic disposable containers have been used for some time to hold hot and cold liquids. It is well-known, however that when such containers are used to hold hot liquids, carmot be hold without some discomfort due to the heat transfer through the container sidewalls. More recently thin wall containers have been developed which have at least partially resolved the heat transfer problem, unfortunately, however these solutions are sufficient in terms of neither reduction of heat transfer and/nor the cost of producing such containers to warrant commercial acceptance over the non-insulated thin wall plastic containers now generally in use., Some of the solution to this problem have involved thickened foam container walls, plastic containers having variously shaped gripping fins around thin outer walls, solid plastic containers, which either have a foam outer strip or have been partially foamed and double thin walled plastic containers which have been somewhat intricately designed to maintain an air space been the walls. To overcome such limitations experienced by above PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF is invented. The present invention is described with greater specific and clarity with reference to following drawings: Fig.l represents the process of falling pre-weighted charge of plastic powder into the metal mould. Fig.2 represents the formation of outer layer Fig.3 represents the formation of outer layer with foamed layer Fig. 4 represents the formation of inner layer with foamed layer Fig. 5 represents the product demoulding. The present invention is an improvement in insulating containers obtained by an unusual and unique combination of insulating factors resulting in a highly insulated thin walled container which is both simple and economical to produce. In the rotational molding process, a pre-measured amount of plastic material (2) in power form is placed in a cavity or metal mould (1) as shown in Fig.l. In the rotational molding process, a pre-measured amount of plastic material (2) in power form is placed in a cavity or metal mould (1) as shown in Fig.l. The basic raw materials are used in the process, i.e. linear law density poly ethylene (LLDPE), High Density poly ethylene (HDPE), poly carbonate (PC), poly propylene(PP) Cross linked Polymer and EVA copolymer etc. The speed of rotation are relatively slow [i.e. 10 rev/min] so; the powder tends to lie in the bottom of the method. Then the mould is closed. The molding machine then indexes the mold into an oven where the mold and subsequently the plastic is brought up to the moulding temperature. As the mould is heated (3), it is rotated continuously about its vertical and horizontal axis (5).This biaxial (5) rotation brings all surface of the mold into contact with the puddle of plastic material. The mold continues to rotate within the oven until all of the plastic material has been picked up by the hot inside surface of the cavity. After a time, the mould wall is sufficiently hot so that some of the plastic powder melts and adheres to the inner surface of the mould (4) as it passes through the powder pool. This process continues until all the powder has been converted to melt (in the mould wall in uniform layer of melt. At this stage the plastic melt contains a large number of air pockets. Similarly the second layer (6) is charged having the foaming agent [i.e. ADC based (Azodicarbonamide), p-Toluenesulfonyl hydrazine (blowing agent TSH) and AZO- Foam (Dinitrosopen-tamethlenetetramine)] as. additives and then processed again as shown in Fig. 3. Thereafter the third layer (7) is formed by pouring power on the foamed layer as shown in Fig. 4. On completion of the final layer the mould is allowed to heat (3) for specified time and then moved to the cooling area. After melting for as specified time making a layer on the outer wall the mould. Then the outer wall is charged with foaming agent [i.e. azodicarbonamide preparations] as additive in plastic with pre-specified ratio and then again the powdered material is allowed to process in the preceding manner. Thereafter, the inner and final layer is formed using the same method but without use of foaming agent as additive. While continuing to rotate, the machine indexes the mold out of the oven and into a cooling area. Air or mixture of air and water, cools the mold and the layer of molten plastic material. A mixture of forced air and water spray is used in various combinations to achieve the desired quality. The cooling process continues until the part has cooled sufficiently to retain its shape. The machine then indexes the mold to loading and unloading station. The mold is then opened and then the product is 4e-mould by open the mould from its flange joint. Then the final product (8) is de-moulding, as shown in Fig. 5. After demanding product, one can add one more process of final finishing of the product and for the CNC routers, trimmers and many automatic / manual types of equipment. A new batch of material is then placed in the cavity or metal moulding, the mold is closed and the process is repeated. The present invention is used to keep the cold products cold and hot products hot. The actual weight to volume ratio is lowest and the product has better strength and with better value addition to the normal human kind at lower cost. We Claim: 1. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF comprises following steps: (a) pre-measured amount of plastic material in powder form is placed in a cavity or metal mould, then the mould is closed; (b) the moulding machine then indexes the mold into an oven where the mold and subsequently the plastic is brought up to the molding temperature; (c) after melting for as specified time making a layer on the outer wall the mould is then charged with foaming agent [i.e. azodicarbonamide preparations] as additive in plastic with pre- specified ratio and then again the powdered material is allowed to process in the preceding manner; (d) after the cooling cycle completes, the product can be de-mould by open the mould form it's flange joint. 2. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the mold is rotated continuously about its vertical and horizontal axes; this biaxial rotation beings all surfaces of the mold into contact with the puddle of plastic material. 3. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the mold continues to rotate within the oven until all of the plastic material has been picked up by the hot inside surface of the cavity in uniform foamed layer. 4. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the inner and final layer are formed using the same rotational moulding method but without use of foaming agent as additive. 5. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 4 wherein after the inner and final layer are formed the mould out of the oven and into a cooling area, air or mixture of air and water cools the mold and the layer of molten plastic material. 6. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF substantially as herein described with reference to the foregoing description and the accompanying drawings. Dated this on 25 th day of December, 2006 Dr. Rajeshkumar H. Acharya. Advocate & Patent agent for and on behalf of the applicant. Abstract The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS. AND PRODUCT THEREOF. The production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is relatively simple technique by means of which wide variety of hallow articles can be produced, wherein the mold is rotated continuously about its vertical and horizontal axes.

Full Text

FORM 2
THE PATENT ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
1. TITLE OF THE INVENTION:
PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF
2. APPLICANT:
(a) NAME: Goplani Ramesh Parashram
(b) NATIONALITY: an Indian
(c) ADDRESS: F/901, Samrajya,
0pp. Shakamba Party Plot,
Memnagar, Ahmedabad - 380 052
Gujarat, India.
The following specification particularly describes the invention and the manner in which it is to be performed.

The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF.
The production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is a relatively simple technique by means of which a wide variety of hollow articles can be produced. With this technique a hollow mould can be rotated around various axes. During rotation the plastic material that has previously been introduced into the hollow mould is distributed uniformly over the internal surface of the hollow mould. The hollow mould is also heated during the operation, such that the distributed plastic material melts and acquires a uniform smooth contour. The plastic material formed in this way is then cooled, after which the hollow mould is opened in order to remove the product. Using this process hollow plastic article can be produced in a relatively simple mould.
Thin wall plastic disposable containers have been used for some time to hold hot and cold liquids. It is well-known, however that when such containers are used to hold hot liquids, carmot be hold without some discomfort due to the heat transfer through the container sidewalls. More recently thin wall containers have been developed which have at least partially resolved the heat transfer problem, unfortunately, however these solutions are sufficient in terms of neither reduction of heat transfer and/nor the cost of producing such containers to warrant commercial acceptance over the non-insulated thin wall plastic containers now generally in use.,

Some of the solution to this problem have involved thickened foam container walls, plastic containers having variously shaped gripping fins around thin outer walls, solid plastic containers, which either have a foam outer strip or have been partially foamed and double thin walled plastic containers which have been somewhat intricately designed to maintain an air space been the walls.
To overcome such limitations experienced by above PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF is invented.
The present invention is described with greater specific and clarity with reference to following drawings:
Fig.l represents the process of falling pre-weighted charge of plastic powder
into the metal mould.
Fig.2 represents the formation of outer layer
Fig.3 represents the formation of outer layer with foamed layer
Fig. 4 represents the formation of inner layer with foamed layer
Fig. 5 represents the product demoulding.
The present invention is an improvement in insulating containers obtained by an unusual and unique combination of insulating factors resulting in a highly insulated thin walled container which is both simple and economical to produce.
In the rotational molding process, a pre-measured amount of plastic material (2) in power form is placed in a cavity or metal mould (1) as shown in Fig.l.

In the rotational molding process, a pre-measured amount of plastic material (2) in power form is placed in a cavity or metal mould (1) as shown in Fig.l. The basic raw materials are used in the process, i.e. linear law density poly ethylene (LLDPE), High Density poly ethylene (HDPE), poly carbonate (PC), poly propylene(PP) Cross linked Polymer and EVA copolymer etc. The speed of rotation are relatively slow [i.e. 10 rev/min] so; the powder tends to lie in the bottom of the method. Then the mould is closed. The molding machine then indexes the mold into an oven where the mold and subsequently the plastic is brought up to the moulding temperature. As the mould is heated (3), it is rotated continuously about its vertical and horizontal axis (5).This biaxial
(5) rotation brings all surface of the mold into contact with the puddle of plastic material. The mold continues to rotate within the oven until all of the plastic material has been picked up by the hot inside surface of the cavity. After a time, the mould wall is sufficiently hot so that some of the plastic powder melts and adheres to the inner surface of the mould (4) as it passes through the powder pool. This process continues until all the powder has been converted to melt (in the mould wall in uniform layer of melt. At this stage the plastic melt contains a large number of air pockets. Similarly the second layer
(6) is charged having the foaming agent [i.e. ADC based (Azodicarbonamide), p-Toluenesulfonyl hydrazine (blowing agent TSH) and AZO- Foam (Dinitrosopen-tamethlenetetramine)] as. additives and then processed again as shown in Fig. 3. Thereafter the third layer (7) is formed by pouring power on the foamed layer as shown in Fig. 4. On completion of the final layer the mould is allowed to heat (3) for specified time and then moved to the cooling area.

After melting for as specified time making a layer on the outer wall the mould. Then the outer wall is charged with foaming agent [i.e. azodicarbonamide preparations] as additive in plastic with pre-specified ratio and then again the powdered material is allowed to process in the preceding manner. Thereafter, the inner and final layer is formed using the same method but without use of foaming agent as additive.
While continuing to rotate, the machine indexes the mold out of the oven and into a cooling area. Air or mixture of air and water, cools the mold and the layer of molten plastic material. A mixture of forced air and water spray is used in various combinations to achieve the desired quality. The cooling process continues until the part has cooled sufficiently to retain its shape. The machine then indexes the mold to loading and unloading station. The mold is then opened and then the product is 4e-mould by open the mould from its flange joint. Then the final product (8) is de-moulding, as shown in Fig. 5. After demanding product, one can add one more process of final finishing of the product and for the CNC routers, trimmers and many automatic / manual types of equipment. A new batch of material is then placed in the cavity or metal moulding, the mold is closed and the process is repeated.
The present invention is used to keep the cold products cold and hot products hot. The actual weight to volume ratio is lowest and the product has better strength and with better value addition to the normal human kind at lower cost.

We Claim:
1. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF comprises following steps:
(a) pre-measured amount of plastic material in powder form is placed in
a cavity or metal mould, then the mould is closed;
(b) the moulding machine then indexes the mold into an oven where the
mold and subsequently the plastic is brought up to the molding
temperature;
(c) after melting for as specified time making a layer on the outer wall
the mould is then charged with foaming agent [i.e.
azodicarbonamide preparations] as additive in plastic with pre-
specified ratio and then again the powdered material is allowed to
process in the preceding manner;
(d) after the cooling cycle completes, the product can be de-mould by
open the mould form it's flange joint.
2. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the mold is rotated continuously about its vertical and horizontal axes; this biaxial rotation beings all surfaces of the mold into contact with the puddle of plastic material.
3. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the mold continues to rotate within the oven until all of the

plastic material has been picked up by the hot inside surface of the cavity in uniform foamed layer.
4. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 1 wherein the inner and final layer are formed using the same rotational moulding method but without use of foaming agent as additive.
5. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF as claimed in claim 4 wherein after the inner and final layer are formed the mould out of the oven and into a cooling area, air or mixture of air and water cools the mold and the layer of molten plastic material.
6. PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS AND PRODUCT THEREOF substantially as herein described with reference to the foregoing description and the accompanying drawings.
Dated this on 25 th day of December, 2006

Dr. Rajeshkumar H. Acharya. Advocate & Patent agent
for and on behalf of the applicant.

Abstract
The present invention relates to the PROCESS OF MANUFACTURING INSULATED FOAMED CONTAINERS. AND PRODUCT THEREOF. The
production of a plastic container by means of rotational moulding process for providing the insulation to the container. Rotational moulding is relatively simple technique by means of which wide variety of hallow articles can be produced, wherein the mold is rotated continuously about its vertical and horizontal axes.

Documents:

2126-mum-2006-abstract(18-5-2007).doc

2126-mum-2006-abstract(18-5-2007).pdf

2126-mum-2006-abstract.doc

2126-mum-2006-abstract.pdf

2126-mum-2006-cancelled pages(18-5-2007).pdf

2126-mum-2006-claims(granted)-(18-5-2007).doc

2126-mum-2006-claims(granted)-(18-5-2007).pdf

2126-mum-2006-claims.doc

2126-mum-2006-claims.pdf

2126-mum-2006-correspondence(26-2-2007).pdf

2126-mum-2006-correspondence(ipo)-(26-3-2007).pdf

2126-mum-2006-correspondence-received.pdf

2126-mum-2006-description (complete).pdf

2126-mum-2006-drawing(18-5-2007).pdf

2126-mum-2006-drawings.pdf

2126-mum-2006-form 1(26-12-2006).pdf

2126-mum-2006-form 18(27-2-2007).pdf

2126-mum-2006-form 2(granted)-(18-5-2007).doc

2126-mum-2006-form 2(granted)-(18-5-2007).pdf

2126-mum-2006-form 26(25-12-2006).pdf

2126-mum-2006-form 3(25-12-2006).pdf

2126-mum-2006-form 5(25-12-2006).pdf

2126-mum-2006-form 9(12-1-2007).pdf

2126-mum-2006-form-1.pdf

2126-mum-2006-form-2.doc

2126-mum-2006-form-2.pdf

2126-mum-2006-form-26.pdf

2126-mum-2006-form-3.pdf

2126-mum-2006-form-5.pdf

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Patent Number

219429

Indian Patent Application Number

2126/MUM/2006

PG Journal Number

33/2008

Publication Date

15-Aug-2008

Grant Date

06-May-2008

Date of Filing

26-Dec-2006

Name of Patentee

GOPLANI RAMESH PARASHRAM

Applicant Address

Inventors:

#	Inventor's Name	Inventor's Address
1	GOPLANI RAMESH PARASHRAM

PCT International Classification Number

B65D81/18, B65D81/38, B65D90/02

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA