# US 8,784,093 B2 · Cooling apparatus for microreplication

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- Number: US 8,784,093 B2
- Document ID: US8784093B2
- Status: Granted
- Kind: B2
- Application number: 13/304,998
- Filed: 2011-11-28
- Published: 2012-11-29
- Granted: 2014-07-22
- Earliest claimed: 2010-11-30
- Assignees: Avery Dennison Corporation
- Applicants: Eugene Rozenbaoum
- Inventors: Eugene Rozenbaoum
- Web page: https://patentgrep.com/patent/US8784093B2

## CPC

- B29C 43/222: {characterised by the shape of the surface}
- B29C 35/16: Cooling {(cooling extruded material B29C48/911; cooling preforms for blow moulding B29C49/6427; cooling blown articles B29C49/66; cooling tyres during post cure inflation B29D30/0643)}
- B29C 43/30: Making multilayered or multicoloured articles {(B29C43/26 takes precedence)}
- B29C 43/44: Compression means for making articles of indefinite length
- B29C 43/52: Heating or cooling
- B29C 59/04: using rollers or endless belts
- B29C 2035/1616: {using liquids}
- B29C 2035/1625: {other than water}
- B29C 2035/1691: {using gas-liquid mixtures}
- B29C 2059/023: {Microembossing}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)

## Abstract

According to one exemplary embodiment, an apparatus for microreplication is disclosed. The apparatus includes a cooling unit that contains a bottom layer, a plurality of side walls, and an intermediate layer. The bottom layer has an outer perimeter, and the plurality of side walls surround the outer perimeter of the bottom layer. The intermediate layer is positioned between the bottom layer and an upper portion of the side walls. The intermediate layer may include a plurality of openings, which may either hold a device that dispenses cooling agents or be used for drainage of cooling agents. The method utilizes the apparatus after heating and pressing of a polymer film during microreplication.

## Claims

### Claim 1

A cooling unit for microreplication comprising:
a bottom layer having an area surrounded by an outer perimeter wherein the bottom layer has a top face and a bottom face;
a plurality of side walls surrounding the outer perimeter of the bottom layer wherein each of the side walls has an upper portion and a lower portion wherein the lower portion of the side wall is attached to the outer perimeter of the bottom layer;
an intermediate layer having an area surrounded by an outer intermediate layer perimeter and having a top side and a bottom side wherein the intermediate layer is located between the bottom layer and the upper portion of each of the side walls;
a plurality of openings formed in the intermediate layer; and
configured to dispense a cooling agent located within one of the plurality of openings.

### Claim 2 (depends on 1)

The cooling unit of claim 1, wherein the device is a nozzle.

### Claim 3 (depends on 1)

The cooling unit of claim 1, wherein a portion of the plurality of openings are at least one of coolant collecting channels, coolant collecting grooves, and coolant collecting rows.

### Claim 4 (depends on 1)

The cooling unit of claim 1, further comprising a cooling agent.

### Claim 5 (depends on 4)

The cooling unit of claim 4, wherein the cooling agent is selected from the group consisting of water, glycol, water mixed with glycol, and water mixed with air.

### Claim 6 (depends on 1)

The cooling unit of claim 1, wherein a portion of the plurality of openings are equally spaced apart holes.

### Claim 7 (depends on 1)

The coolant unit of claim 1, wherein the device is a plurality of nozzles.

### Claim 8 (depends on 7)

The coolant unit of claim 7, wherein a first portion of the plurality of nozzles dispense a first cooling agent and a second portion of the plurality of nozzles dispense a second cooling agent.

### Claim 9 (depends on 5)

The cooling unit of claim 5 wherein the temperature of the cooling agent ranges from about 45° F. to about 55° F. when the cooling agent is water.

### Claim 10 (depends on 1)

The cooling unit of claim 1, wherein the flow rate of the cooling agent through the dispensing device is variable.

### Claim 11 (depends on 8)

The cooling unit of claim 8, wherein the flow rate of the first cooling agent through the first portion of the plurality of nozzles is different from the flow rate of the second cooling agent through the second portion of the plurality of nozzles.