US Patent No: 4,857,147
Number of patents in Portfolio can not be more than 2000
Method of composite part fabrication
Stats
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Aug 15, 1989
Issued date -
Mar 18, 1988
filing date -
07/169,715
serial no -
Expired
status
Importance
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Abstract
A method is disclosed for the formation of three dimensional composite articles by use of an aqueous slurry containing thermoplastic powder. The slurry is retained by a rotating wheel that is capable of dewatering and drying the slurry sufficiently within molds carried by the wheel so as to dimensionally stabilize the three dimensional composite prior to its release from the wheel. The thermoplastic powder used in the process of the present invention has a specific gravity greater than 1, and therefore mixes homogeneously with the other components of the aqueous slurry so as to yield a composite having similar mechanical properties across its entire cross section.
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First Claim
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International Classification(s)
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,612,251 Paper sheet having a very high proportion of latex, process for preparing same and applications thereof particularly as a substitution product for impregnated glass webs | 8 | 1983 | |
| 4,645,565 Material in sheet form, convertible into a finished product by moulding-stamping or heat-shaping, comprising reinforcing fibers and a thermoplastics resin in power form, and process for preparing said material | 16 | 1985 | |
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| 4,599,476 Process for the preparation of dimerization products from olefins | 20 | 1985 | |
| 4,740,625 Catalyst compositions and a process for polymerizing carbon monoxide and olefins | 17 | 1987 | |
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| 4,448,640 Process and device for molding and drying objects made of fibrous materials | 6 | 1982 | |
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| 4,426,470 Aqueous method of making reinforced composite material from latex, solid polymer and reinforcing material | 76 | 1982 | |