Covered soft foam article

• US 5,096,760 A
• Filed: 07/20/1989
• Issued: 03/17/1992
• Est. Priority Date: 07/20/1989
• Status: Expired due to Fees

• Current Assignee: Namba Corporation
• Original Assignee: Creme Art Corporation
• Inventors: Thary, Christian
• Primary Examiner(s): Epstein, Henry F.
• Application Number:
  US07/383,219
• Time in Patent Office: 971 Days
• Field of Search: 428/71, 428/85, 428/160, 428/308.4, 428/309.9, 264/46.6, 264/46.7, 5/481, 297/219, 297/DIG. 1, 446/369
• US Class Current: 428/71
• CPC Class Codes: A63H 3/02 made of fabrics or stuffed
• CPC Class Codes: A63H 9/00 Special methods or compositions for the manufacture of dolls, toy animals, toy figures, or parts thereof
• CPC Class Codes: B29C 44/16 shaped by the expansion of the material
• CPC Class Codes: B29K 2995/0065 Permeability to gases
• CPC Class Codes: B32B 2266/0278 Polyurethane
• CPC Class Codes: B32B 2266/08 Closed cell foam
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B32B 5/20 foamed in situ
• CPC Class Codes: B32B 5/245 another layer next to it being a foam layer
• CPC Class Codes: D06N 3/0045 obtained by applying a ready-made foam layer; obtained by compressing, crinkling or crushing a foam layer, e.g. Kaschierverfahren für Schaumschicht
• CPC Class Codes: Y10S 297/01 Foam
• CPC Class Codes: Y10T 428/233 Foamed or expanded material encased
• CPC Class Codes: Y10T 428/24512 Polyurethane
• CPC Class Codes: Y10T 428/249958 Void-containing component is synthetic resin or natural rubbers

Abstract

A soft foam article (20) and a method for making the article are disclosed as including a permeable cover (24) of a cloth type sheet construction having an interior (26) and an exterior (28) as well as including an open cell soft polyurethane foam (30) molded in situ within the cover in direct engagement with the cover interior without permeating the cover. The soft foam article (20) is disclosed as a soft toy (22) and as seating components embodied by a seat cushion (52), a seat back (54), a headrest (56), and an armrest (58). The in situ molding of the soft polyurethane foam is achieved by the use of an aqueous gel coating (34) on the cover interior (26) so as to prevent a liquid foam mixture from permeating the cover while still permitting escape of any air within the cover and of gas generated during the foaming. Best results are achieved when the aqueous gel includes water and an acrylic acid polymer that is acid neutralized to increase its viscosity to the range of about 60,000 to 100,000 centipoise and most preferably to about 80,000 centipoise.

Claims

1. A soft foam article comprising:

a permeable cover of a cloth sheet construction having an interior and an exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

2. A soft foam article as in claim 1 wherein the foam is bonded to the interior of the permeable cover.

3. A soft foam article as in claim 1 wherein the foam is free to move with respect to the interior of the permeable cover.

4. A soft foam article as in any one of claims 1 to 3 which is a toy having the exterior of its permeable cover provided with a plush pile.

5. A soft foam article as in any one of claims 1 to 3, which is a seat component.

6. A soft foam article as in claim 5 wherein the seat component is a seat cushion.

7. A soft foam article as in claim 5 wherein the seat component is a seat back.

8. A soft foam article as in claim 5 wherein the seat component is a headrest.

9. A soft foam article as in claim 3 wherein the seat component is an armrest.

10. A toy comprising:

a permeable cover of a cloth sheet construction having an interior and also having an exterior including a plush pile, the cover being permeable between the interior and exterior thereof, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover or the pile of the cover exterior due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

11. A seat component comprising:

a permeable cover of a cloth sheet construction having an interior and an exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

12. A seat cushion comprising:

a permeable cover of a cloth sheet construction having an interior and an exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

13. A seat back comprising:

a permeable cover of a cloth sheet construction having an interior and exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

14. A headrest comprising:

a permeable cover of a cloth sheet construction having an interior and exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.

15. An armrest comprising:

a permeable cover of a cloth sheet construction having an interior and exterior between which the cover is permeable, and the interior of the permeable cover having a dried residue of an aqueous gel composition; and

an open cell soft polyurethane foam molded in situ within the permeable cover in direct engagement with the interior of the permeable cover without permeating the cover due to the aqueous gel composition on the cover interior prior to the gel composition drying and leaving the dried residue on the cover interior.