 Apparatus for producing a curly puff extrudate |
| The proposed invention comprises introducing the extrudate as it exits the extruder die into a ... |
|
| Method and apparatus for producing a curly puff extrudate |
| The present invention comprises a nicking blade apparatus that nicks the curly puff extrudate ... |
|
| Polyester film composites |
| I claim: 1. A polyester film composite, which comprises a primary layer comprising a highly ... |
|
| Polyester film for thermal lamination |
| OF THE INVENTION The polyester A in the present invention must have ethylene terephthalate and/or ... |
|
| Heat-sealable polyester film |
| What is claimed is: 1. A coextruded heat-sealable polyester film having at least one polyester base ... |
|
| Sealable polyester film with high oxygen barrier, its use and process for its production |
| What is claimed is: 1. A sealable, biaxially oriented polyester film comprising: a base layer B, at ... |
|
|
Method for fabricating non-fiberglass sound absorbing moldable thermoplastic structure
| Details |
Inventors: North, John M.; Albert, Michael P.;
Assignee: Harodite Industries, Inc. (Taunton, MA)
Primary Examiner: Cole; Elizabeth M.
Assistant Examiner:
Attorney, Agent or Firm: Reed Smith LLP, Wolfson; Micheael I.
A non-fiberglass containing sound absorbing moldable laminate of a fibrous batt and stiffening mats formed from chopped mono-filament polyester bonded by a thermoplastic binder is provided. The mono-filament mats stiffen the batt and allow use of all thermoplastic material in the composite. |
|
DETAILED DESCRIPTION Generally speaking, in accordance with the invention, a non-fiberglass containing sound absorbing moldable structure and a method of fabrication is provided.
The non-fiberglass construction is provided by forming the structure from a batt of polyester fibers bonded with a thermoplastic resin, such as a polyester or polyamide as a core.
Porous stiffening fibrous mats are disposed on both surfaces of the fibrous batt.
These mats are formed from chopped polyester mono-filaments and a polyester binder.
The outer surface of the composite includes a decorative outer face fabric thereon and the back surface includes a mold release layer formed of a non-woven polyester web.
If liquid resins are used to bond the various layers, a non-porous thermoplastic film may be used to prevent liquid resin from contaminating the mold surface.
The composite based solely on polyester fiber and thermoplastic binders has sufficient stiffness due to use of the mono-filament polyester fibers in the porous stiffening mats.
These mono-filaments are generally between 0.
0254 to 0.
635 mm (0.
001" to 0.
025") in thickness and are chopped in lengths from 0.
635 to 10.
16 cm (1/4" to 4") long.
The mono-filaments may be chopped in place or provided in supporting mats which may be provided in roll or sheet form for fabricating the multi-layer composite.
The fibrous batt in combination with the mono-filament stiffening mats provide a totally non-fiberglass construction allowing a single recycle stream with enhancement of the overall acoustical performance of the headliner.
Accordingly, it is the object of the invention to provide an improved non-fiberglass containing sound absorbing multiple structure.
Another object of the invention is to provide an improved non-fiberglass sound absorbing moldable structure including a core of a fibrous batt bonded with adhesive resin.
A further object of the invention is to provide an improved non-fiberglass sound absorbing moldable structure including porous stiffening mats of mono-filament polyester fiber in a resin binder
|
| Related patents |
|
|
Mechanism for adjusting an extrusion die in cereal grain extruder apparatus
The present invention is embodied in an improved extruder apparatus for a curled food product manufacturing machine comprising means for changing cereal grain into ...
|
|
|
Method of making pretzels of selected spiral pitch
It is, therefore, an important object of the present invention to provide an extremely simple method for the manufacture of a spirally configured pretzel, which method ...
|
|
|
Nozzle for extrusion
The present invention teaches an apparatus for providing a co-extruded product, and also teaches a particular type of co-extruded product formed by the above-mentioned ...
|
|
|
Method of manufacturing columnar shaped piece
A principal object of the present invention is to provide a columnar shaped piece that differs from the known piece of this type due to its improved mechanical ...
|
|
|
Extrusion apparatus and method for producing three-dimensional shapes
The present invention provides an apparatus and method for producing three-dimensional objects via extrusion. More particularly, the apparatus of the present invention ...
|
|
|
Extrusion of an article of varying content
I claim: 1. A process of extruding an extrudate with different materials, the proportions of which vary along the length of the extrudate, including: providing a first ...
|
|
|
Method for cooling and if necessary calibrating articles of plastic
The object underlying the present invention is to improve the strength properties of extruded articles with the best possible utilization of the energy outlay, or to ...
|
|
|
Extruder with a shaping device
The object underlying the present invention is to achieve, even at high throughputs, a perfect and constant surface quality of the extrudates produced, particularly of ...
|
|
|
High precision multiple-extrusion of confectionary products
It is an object of the present invention to provide an improved candy or confectionery making process. It is also an object of the present invention to provide a system ...
|
|
|
Method and apparatus for producing a braided puff extrudate
The proposed invention comprises introducing two or more streams of extrudate as they exit the extruder die into a containment tube or other peripheral containment ...
|
|
|
Nonmetallic Processes 
