Method and material for packaging

• US 6,503,590 B1
• Filed: 08/29/2000
• Issued: 01/07/2003
• Est. Priority Date: 08/29/2000
• Status: Expired due to Fees

• Current Assignee: Ana Luu, Tom Luu
• Original Assignee: Ana Luu, Tom Luu
• Inventors: Luu, Tom, Luu, Ana
• Primary Examiner(s): Ahmad, Nasser
• Application Number:
  US09/650,234
• Time in Patent Office: 861 Days
• Field of Search: 428/40.1, 428/41.7, 428/41.8, 428/41.9, 428/192, 428/194, 206/521, 206/523, 206/593, 206/813, 206/822
• US Class Current: 428/40.1
• CPC Class Codes: B32B 2317/127 Corrugated cardboard
• CPC Class Codes: B32B 2323/04 Polyethylene
• CPC Class Codes: B32B 2325/00 Polymers of vinyl-aromatic compounds, e.g. polystyrene
• CPC Class Codes: B32B 2605/12 Ships
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 29/08 Corrugated paper or cardboard
• CPC Class Codes: B32B 3/28 characterised by a layer comprising a deformed thin sheet , i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled B32B29/08 takes precedence
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B65D 5/5028 Elements formed separately from the container body
• CPC Class Codes: B65D 81/03 Wrappers or envelopes with shock-absorbing properties, e.g. bubble films for thermal insulating purposes B65D81/3888
• CPC Class Codes: B65D 81/1275 laminated or bonded to the inner wall of a container for thermal insulating purposes B65D81/3858
• CPC Class Codes: Y10S 206/813 Adhesive
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/1471 Protective layer
• CPC Class Codes: Y10T 428/1476 Release layer
• CPC Class Codes: Y10T 428/1481 Dissimilar adhesives
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24793 Comprising discontinuous or differential impregnation or bond

Abstract

The present invention 10 discloses a packing material comprised of a Styrofoam core 14 having a polyethylene or stretch film 16 bonded by adhesive 18 to the upper and lower surface of the Styrofoam material. The coating materials improve the characteristic of Styrofoam 14 by dispersing a load force across the material. A corrugated layer 20 may be added by adhesive means 18 either as an additional layer or substituting for one or both of the film layers 16 and thereby forms a product that can be die cut which will replace the need for formed Styrofoam in many applications. The die cut material can be shipped in a substantially planar form and assembled on the job site. The edge of the Styrofoam core 14 may be coated with an additional adhesive layer 18 for attachment thereto of a peel-away protective layer 22.

Claims

1. A packing material useful for packaging an article inside a container, comprising:

a) a core layer of expanded cellular polystyrene, said core layer having a top side and a bottom side;

b) a first adhesive layer disposed on said top side of said core layer;

c) a second adhesive layer disposed on said bottom side of said core layer;

d) a corrugated layer, said corrugated layer having a top side and a bottom side;

e) said corrugated layer disposed on said second adhesive layer on said bottom side of said core layer;

f) a third adhesive layer disposed on said bottom side of said corrugated layer; and

,

g) a second flexible sheet disposed on said third adhesive layer on said bottom side of said corrugated layer.