Method of making foam plastic article

• US 4,470,857 A
• Filed: 06/25/1982
• Issued: 09/11/1984
• Est. Priority Date: 06/25/1982
• Status: Expired due to Fees

• Current Assignee: R A Casalou Incorporated
• Original Assignee: R A Casalou Incorporated
• Inventors: Casalou, Stephen J.
• Primary Examiner(s): Weston, Caleb
• Application Number:
  US06/392,373
• Time in Patent Office: 809 Days
• Field of Search: 156/66, 156/91, 156/77, 156/78, 156/79, 156/242, 156/245, 24/306, 264/45.1, 264/46.4, 264/46.7, 428/71, 428/99, 428/100, 5/481, 5/498
• US Class Current: 156/66
• CPC Class Codes: A44B 18/0076 Adaptations for being fixed to a moulded article during moulding
• CPC Class Codes: B29C 33/0044 for sealing off parts of inserts projecting into the mould cavity
• CPC Class Codes: B29C 33/14 against the mould wall
• CPC Class Codes: B29C 44/1271 the preformed parts being partially covered
• CPC Class Codes: B29K 2105/04 cellular or porous
• CPC Class Codes: B29L 2031/729 Hook and loop-type fasteners
• CPC Class Codes: B29L 2031/771 Seats
• CPC Class Codes: B60N 2/5875 by adhesion, e.g. gluing
• CPC Class Codes: Y10S 5/922 with hook and loop type fastener
• CPC Class Codes: Y10T 24/2708 Combined with diverse fastener
• CPC Class Codes: Y10T 428/24008 including fastener for attaching to external surface
• CPC Class Codes: Y10T 428/24017 Hook or barb

Abstract

The method of making a foam plastic cushion or structural part with a plurality of fastening assemblies thereon comprising the steps of applying a moisture proof barrier sheet of plastic to a strip of porous backing material; applying a coating of pressure sensitive adhesive to the barrier sheet; applying a strip of hook or loop material having a backing to the adhesive coating extending laterally outward of the strip of backing material, barrier sheet and adhesive coating extending laterally outward of the strip of hook or loop material; bonding the backing of the strip of hook or loop material to the barrier sheet upon the strip of backing material; successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface; adhering peripheral portions of the strip of backing material and adhesive coating to the mold surface for sealing the fastening assemblies thereon; and introducing molten plastic material into the mold bodies filling the cavity forming a molded foam plastic cushion or structural part, the plastic material of the part bonding to the strips of backing material and hook or loop assemblies. An article of manufacture produced by this method.

Claims

1. The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of:

securing a moisture proof barrier sheet of plastic material to a strip of porous backing material;

applying a coating of pressure sensitive adhesive to said barrier sheet;

applying a strip of hook or loop fastener material having a backing to the adhesive coating on said barrier sheet;

peripheral portions of said strip of backing material, barrier sheet and adhesive coating extending laterally outward of said strip of hook or loop material;

bonding the backing of said strip of hook or loop material to said barrier sheet;

successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface;

and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded foam plastic article therein, the plastic material of said article bonding to said strips of porous backing material and hook or loop assemblies.

2. In the method of claim 1, the foam plastic material of said molded part migrating and dispersing within and throughout said backing material.

3. In the method of claim 1, said foam plastic article being a vehicle seat.

4. In the method of claim 1, said foam plastic cushion or structural part being a vehicle seat backrest.

5. In the method of claim 1, said foam plastic cushion or structural part being a vehicle door panel.

6. The method of making a foam plastic article with a plurality of fastening assemblies thereon comprising the steps of:

securing a moisture proof barrier sheet of plastic material to a strip of non-woven plastic backing material;

applying a coating of pressure sensitive adhesive to said barrier sheet;

applying a strip of hook or loop fastener material having a backing to the coating on said barrier sheet;

extending peripheral portions of said strip of backing material, barrier sheet and adhesive coating laterally outward of said strip of hook or loop material;

bonding the backing of said strip of hook or loop material to said barrier sheet and strip of backing material;

successively mounting upon a mold surface of a pair of mold bodies defining a mold cavity a plurality of spaced bonded backing and hook or loop assemblies, with the hook or loop material facing the mold surface;

adhering peripheral portions of said strip of backing material, barrier sheet and adhesive coating to the mold surface for sealing said assemblies thereon and excluding plastic material from said hook or loop material;

and introducing molten plastic material and a foaming agent into said mold bodies filling said cavity and on cooling forming a molded plastic article therein, the plastic material of said article bonding to said strips of backing material and hook or loop assemblies.