Laminates, and systems and methods for laminating

• US 10,306,712 B2
• Filed: 08/18/2016
• Issued: 05/28/2019
• Est. Priority Date: 09/26/2013
• Status: Active Grant

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: Robbins, David W.
• Primary Examiner(s): Simone, Catherine A.
• Application Number:
  US15/239,896
• Publication Number:
  US 20160360579A1
• Time in Patent Office: 1,013 Days
• Field of Search: 219730, 219759, 426107
• CPC Class Codes: B29C 65/48 using adhesives , i.e. using supplementary joining material; solvent bonding
• CPC Class Codes: B29C 65/524 by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined
• CPC Class Codes: B29C 65/7861 In-line machines, i.e. feeding, joining and discharging are in one production line B29C65/7879, B29C65/7888 take precedence
• CPC Class Codes: B29C 65/7894 of continuously moving sheets or webs
• CPC Class Codes: B29C 66/00461 being liquid, e.g. oil based
• CPC Class Codes: B29C 66/41 Joining substantially flat articles B29C66/47 and subgroups take precedence; Making flat seams in tubular or hollow articles B29C66/51 and subgroups take precedence
• CPC Class Codes: B29C 66/45 Joining of substantially the whole surface of the articles methods or apparatus for laminating B32B37/00
• CPC Class Codes: B32B 2037/243 Coating
• CPC Class Codes: B32B 3/30 characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs apertured layer B32B3/266; layer with cavities or internal voids B32B3/26
• CPC Class Codes: B32B 37/0076 characterised in that the layers are not bonded on the totality of their surfaces
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 37/1292 selectively, e.g. in stripes, in patterns B32B37/0076 takes precedence
• CPC Class Codes: B32B 38/0004 Cutting, tearing or severing, e.g. bursting; Cutter details cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence
• CPC Class Codes: B32B 38/10 Removing layers, or parts of layers, mechanically or chemically
• CPC Class Codes: B32B 43/006 Delaminating
• CPC Class Codes: H05B 6/6408 Supports or covers specially adapted for use in microwave heating apparatus
• CPC Class Codes: H05B 6/6494 for cooking
• CPC Class Codes: Y10T 156/1059 Splitting sheet lamina in plane intermediate of faces
• CPC Class Codes: Y10T 156/1084 of continuous or running length bonded web
• CPC Class Codes: Y10T 156/1089 of discrete laminae to single face of additional lamina
• CPC Class Codes: Y10T 156/1095 : Opposed laminae are running length webs
• CPC Class Codes: Y10T 156/1097 : Lamina is running length web
• CPC Class Codes: Y10T 156/1098 : Feeding of discrete laminae from separate sources
• CPC Class Codes: Y10T 156/1174 : Using roller for delamination [e.g., roller pairs operating at differing speeds or directions, etc.]
• CPC Class Codes: Y10T 156/1195 : Delaminating from release surface
• CPC Class Codes: Y10T 156/1317 : Means feeding plural workpieces to be joined
• CPC Class Codes: Y10T 156/1702 : For plural parts or plural areas of single part
• CPC Class Codes: Y10T 156/1707 : Discrete spaced laminae on adhered carrier
• CPC Class Codes: Y10T 156/1712 : Indefinite or running length work
• CPC Class Codes: Y10T 156/1741 : Progressive continuous bonding press [e.g., roll couples]
• CPC Class Codes: Y10T 156/195 : Delaminating roller means
• CPC Class Codes: Y10T 156/1978 : Delaminating bending means
• CPC Class Codes: Y10T 156/1994 : Means for delaminating from release surface
• CPC Class Codes: Y10T 428/24521 : with component conforming to contour of nonplanar surface
• CPC Class Codes: Y10T 428/24545 : Containing metal or metal compound

Abstract

A frangible laminate includes first, second and third webs, and the second web is positioned between the first and third webs. The forming of the frangible laminate includes adhesively bonding a first plurality of sections of the second web to the first web, applying release material in order to inhibit at least some of any bonding between the first plurality of sections of the second web and the third web, and adhesively bonding a second plurality of sections of the second web to the third web. The frangible laminate is separated into a first laminate and a second laminate, so that the first laminate includes the first web and the first plurality of sections of the second web, and the second laminate includes the third web and the second plurality of sections of the second web.

Claims

1. A laminate comprising:

a plurality of sections of microwave energy interactive active material, wherein sections of the plurality of sections of microwave energy interactive active material are at least partially spaced apart from one another so that gaps are respectively between the sections;

at least one substrate for supporting the sections;

a first layer of adhesive material connecting the sections to the substrate so that the first layer of adhesive material is positioned between the substrate and the sections, wherein

a side of the first layer of adhesive material defines both a plurality of protrusions of the first layer of adhesive material and a plurality of recessed surfaces of the first layer of adhesive material,

recessed surfaces of the plurality of recessed surfaces are respectively positioned between protrusions of the plurality of protrusions, and

the protrusions of the first layer of adhesive material are respectively in opposing face-to-face contact with the sections of microwave energy interactive active material;

a barrier layer extending over the sections of microwave energy interactive active material and the gaps between the sections of microwave energy interactive active material; and

a second layer of adhesive material connecting the barrier layer to the sections of microwave energy interactive active material and to the recessed surfaces of the first layer of adhesive material.

2. The laminate of claim 1, wherein a gap of the gaps is a hole in the microwave energy interactive active material.

3. The laminate of claim 1, wherein the recessed surfaces of the first layer of adhesive material are respectively superposed with the gaps between the sections of microwave energy interactive active material.

4. The laminate of claim 1, wherein the sections of microwave energy interactive active material are arranged in a pattern for influencing an effect of microwave energy on a food product.

5. The laminate of claim 1, wherein the microwave energy interactive material is a layer of microwave energy interactive material.

6. The laminate of claim 1, wherein the microwave energy interactive material is metallic.

7. The laminate of claim 1, wherein the microwave energy interactive material comprises foil.

8. The laminate of claim 1, wherein the substrate comprises paper.

9. The laminate of claim 1, wherein:

the protrusions of the first layer of adhesive material are at least partially spaced apart from one another by the gaps between the sections of microwave energy interactive active material;

a side of the second layer of adhesive material defines both a plurality of protrusions of the second layer of adhesive material and a plurality of recessed surfaces of the second layer of adhesive material,

recessed surfaces of the plurality of recessed surfaces of the second layer of adhesive material are respectively positioned between protrusions of the plurality of protrusions of the second layer of adhesive material, and

the protrusions of the second layer of adhesive material respectively extend into the gaps between the sections of microwave energy interactive active material and the protrusions of the first layer of adhesive material.

10. The laminate of claim 9, wherein the protrusions of the second layer of adhesive material are respectively in opposing face-to-face contact with recessed surfaces of the first layer of adhesive material.