http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1338120-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c2260fb34fa5de3bd270bee17aef91b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-249992 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T156-1028 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2031-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C51-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C51-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-00 |
| filingDate | 1971-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1338120-A |
| titleOfInvention | Composite plastics article and method of making same |
| abstract | 1338120 Coating with preformed sheets UNIROYAL Inc 19 April 1971 [4 Feb 1970] 20383/71 Heading B6G A composite article comprising a layer of thermoplastics sheet material bonded directly to a shaped body of cellular thermoplastic material is produced by heating the thermoplastic sheet material to a temperature at which it is drawable and above the fusion point of the cellular thermoplastic material, and drawing the heated thermoplastic sheet material against and into conformity with the shaped body thereby causing the sheet material to be tenaciously bonded by fusion welding to the surface of the shaped body. The sheet material may be drawn against the shaped body by the application of differential gas pressure, preferably by vacuum forming. Examples of thermoplastic materials which can be used either for the sheet or for the cellular body are polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polystyrene, polycarbonate, acrylonitrile - styrene - acrylate, polyphenylene oxide, polysulphone, acrylonitrile - butadiene - styrene, blends thereof with one another or with acrylonitrile-butadienestyrene, polyolefins such as polyethylene, polypropylene, ethylene - propylene copolymers, EPDM (uncured), cellulose acetate, cellulose acetate butyrate, styrene-butadiene copolymers including styrene-butadiene block copolymers, polyurethanes. The sheet material can be cellular. In an embodiment as shown in Fig. 3, a boat hull body 1 made from expandable polystyrene beads and having holes 2 located in a horizontal plane near the bottom of the boat is supported by rigid support member 6 provided with holes 7 and positioned in vacuum box 3 comprising vacuum pipe 4 connected to a source of vacuum and an upper flange 5 at the top of its walls. A wire screen 11 between core 1 and support 6 provides free air passages at all times from holes 2 to holes 7 and thence into the interior of the vacuum box 3. Sheet 12 of ABS material to be vacuum-drawn into the interior of the hull body is framed in clamping means 13 and heated by heating means 14 whereupon the frame 13 is lowered over the vacuum box so that the sheet is stretched air-tightly across vacuum box 3 and vacuum then applied to draw sheet 12 into exact conformity with the interior of hull body 1 and forms a fusion welded skin. The boat hull is also protected on the outside by a thermoplastic skin layer applied by a vacuumforming step. Other articles which can be made are engine covers, containers, material handling devices such as pallets, ice buckets, ice chests, luggage, surfboards, insulating structural members such as wall panels. |
| priorityDate | 1970-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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