Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent
1996-08-28
2000-08-08
Jones, Deborah
Stock material or miscellaneous articles
Structurally defined web or sheet
Edge feature
428107, 428110, 428113, 428172, 428156, 428221, 4282951, 428339, B32B 2302
Patent
active
060999411
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a laminate component comprised essentially of a synthetic resin matrix that is reinforced with highly elastic fibers.
BACKGROUND OF THE INVENTION
Laminates of this type are produced by pressing together a number of prepregs that are produced by impregnating reinforcement fibers with appropriate synthetic resins. These laminates may be used, for example, to produce components for use in vehicle interiors or in the machine-building industry. Laminates of this type must now meet a long list of performance requirements, such as good dynamic, mechanical properties and high levels of resistance to heat and chemicals. Furthermore, such laminates must meet particularly high flame-resistance requirements if they are to be used in components for vehicle interiors.
Although the laminates described at the beginning of this document possess good dynamic, mechanical properties, experience has shown that when these laminates are subjected to subsequent processing, stress points can develop, particularly at the edges, seriously interfering with the continued use of these laminates, especially with their being permanently affixed as building components.
It is thus the purpose of the invention to produce a laminate component with a different elasticity across its surface, such that the edges possess a sufficiently high degree of elasticity to enable them to be mounted without problems, while the degree of elasticity manifested at the center of the component can ensure sufficient mechanical stability of the laminate component.
SUMMARY OF THE INVENTION
This objective is achieved with the laminate component specified in the invention, which is comprised essentially of a synthetic resin matrix, reinforced with highly elastic fibers, and which contains: a) a laminate region having a bending E modulus of 10,000 to 40,000 Mpa, which can be produced from several synthetic fiber prepregs, hot-pressed together, and thus, hardened; b) connecting strips made of soft elastic materials that are arranged on at least two opposite edges of the laminate region and are bonded at the surface with the corresponding edges of the laminate region; and c) a decorative covering layer on one side of the laminate.
The laminate component specified in the invention also provides the advantage that the edge of the laminate is stepped down to the connecting strips.
A further advantage of the flexible laminate component specified in the invention is that the soft elastic material of the edge regions is made of flame-retardant rubber that can be inserted in a non-cross-linked stage during the production of the laminate component. The material is then cross-linked with the hot-pressing of the synthetic resin fiber prepregs, consequently bonding the soft elastic material to the component.
The laminate component specified in the invention further contains a synthetic resin matrix made of a duromeric synthetic resin (preferably a phenolic resin) and contains fiberglass as the highly-elastic fibers.
Another advantage of the invention is that the synthetic resin of the matrix is modified such that the laminate component possesses improved flame-resistance.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a cross-section of laminate component of the invention.
DETAILED DESCRIPTION OF THE INVENTION
Below, the invention will be specified in greater detail by means of a description of the diagram along with an example.
The diagram provides an illustration of the laminate component 1. This shows the laminate regions 3 and 4, as well as the connecting strips 5 and 5', and 6 and 6', that lie on opposite edges of this laminate region. The decorative covering layer 2, comprising of a thin laminate layer 7 and a polyvinyl fluoride layer 8, is shown on at least one side of the laminate.
The laminate component specified in the invention, as illustrated in the diagram, may be produced via the following process steps:
The highly-elastic fibers may, for example, be embedded in the form of fiberglass, which are subsequently impregnated with a pheno
REFERENCES:
patent: 3641230 (1972-02-01), Jenks
patent: 3736609 (1973-06-01), Saucier
patent: 4316934 (1982-02-01), Maier et al.
patent: 4726996 (1988-02-01), Le Gae et al.
Bahta Abraham
Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft
Jones Deborah
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