Interior covering with reinforcement

• US 4,020,207 A
• Filed: 12/07/1973
• Issued: 04/26/1977
• Est. Priority Date: 12/07/1972
• Status: Expired due to Term

• Current Assignee: Dynamit Nobel AG
• Original Assignee: Dynamit Nobel AG
• Inventors: Breitscheidel, Hans-Ulrich, Alfter, Franz-Werner, Laubenberger, Herbert, Becke, Joachim
• Primary Examiner(s): Van Balen, William J.
• Application Number:
  US05/422,725
• Time in Patent Office: 1,236 Days
• Field of Search: 264/45, 161/160, 161/161, 296/137 A, 296/31 R, 296/31 P, 428/310, 428/315, 428/320, 428/314, 428/321, 428/158, 428/322, 428/182, 428/159, 428/116, 428/137, 428/117, 428/138, 428/69, 428/71, 428/73
• US Class Current: 428/138
• CPC Class Codes: B32B 1/00 Layered products having a non-planar shape
• CPC Class Codes: B32B 2266/025 Polyolefin vinyl or acrylic copolymers B32B2266/0221, B32B2266/0242
• CPC Class Codes: B32B 2605/003 Interior finishings
• CPC Class Codes: B32B 27/065 of foam
• CPC Class Codes: B32B 3/12 characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
• CPC Class Codes: B32B 5/02 characterised by structural features of a fibrous or filamentary layer layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B60R 13/00 Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
• CPC Class Codes: B60R 13/0225 self supporting head liners
• CPC Class Codes: Y10T 428/24149 Honeycomb-like
• CPC Class Codes: Y10T 428/24331 including nonapertured component
• CPC Class Codes: Y10T 428/24504 Component comprises a polymer [e.g., rubber, etc.]
• CPC Class Codes: Y10T 428/24694 Parallel corrugations
• CPC Class Codes: Y10T 428/24996 With internal element bridging layers, nonplanar interface between layers, or intermediate layer of commingled adjacent foam layers
• CPC Class Codes: Y10T 428/249981 Plural void-containing components
• CPC Class Codes: Y10T 428/249985 Composition of adhesive or bonding component specified
• CPC Class Codes: Y10T 428/24999 Inorganic

Abstract

An interior covering for automotive vehicles, containers, or the like, which is insulating and optionally constructed to be self-supporting, comprising at least two sheets of polyethylene foam of identical or different density permanently bonded together with a reinforcing polymer-containing layer to form a multiple-layered structure.

Claims

1. An interior dome covering for automotive vehicles that is insulating and self-supporting, which comprises a molded laminate structure having a contoured configuration with a variable cross-section, and consisting of at least two sheets of crosslinked polyethylene foam permanently bonded together with an intermediate polymer-containing non-foamed reinforcing layer to form a multiple-layered structure;

said reinforcing layer being made from a material selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, vulcanized fiber reinforced rubber, polyvinylchloride, and cellulosic material impregnated with phenolic resin or melamine resin.

2. The interior covering according to claim 1, wherein the reinforcing layer is formed as a honeycomb sheet.

9. The interior dome covering according to claim 1, wherein the sheets of polyethylene foam have identical density.

10. The interior dome covering according to claim 1, wherein the sheets of polyethylene foam have different densities.

13. The interior dome covering according to claim 1, wherein the reinforcing layer is formed as a grid-shaped sheet.

14. The interior dome covering according to claim 1, wherein the reinforcing layer is formed as a perforated sheet.

15. The interior dome covering according to claim 1, wherein the reinforcing layer is formed as a sheet having ridges.

3. An insulating interior dome covering fashioned to be self-supporting, for automotive vehicles which comprises a molded laminate structure having a contoured configuration with a variable cross-section, and consisting of at least two crosslinked polyethylene foam sheets permanently bonded to intermediate polymer-containing non-foamed reinforcing layers to form a multiple-layer structure and profiled reinforcing insert members made of thermoplastic resin and shaped and arranged to span the laminate structure in at least one of the longitudinal direction and the transverse direction of said moled laminate structure;

said reinforcing layer being made from a material selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, vulcanized fiber reinforced rubber, polyvinylchloride, and cellulosic material impregnated with phenolic resin or melamine resin.

4. The interior covering according to claim 3, wherein the reinforcing members are applied to the backside of one of the polyethylene foam sheets of the laminate structure.

5. The interior covering according to claim 4, wherein the reinforcing members are cemented to the laminate structure.

6. The interior covering according to claim 4, wherein the reinforcing members are firmly bonded to the laminate structure by the effect of heat.

7. The interior covering according to claim 3, wherein the reinforcing members have a contour.

8. The interior covering according to claim 5, wherein the reinforcing members are corrugated.

11. The interior dome covering according to claim 3, wherein said polyethylene foam sheets have the same density.

12. The insulating interior dome covering of claim 3, wherein the polyethylene foam sheets have different density.

16. An interior dome covering for automotive vehicles that is insulating and self-supporting which consists of a molded laminate structure formed of at least one crosslinked polyehtylene foam sheet having reinforcing profiled insert members made of polyethylene or polypropylene embedded therein on one side of said sheet.