http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-6906655-A
Outgoing Links
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|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0544 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C41-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D35-126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A43B1-0072 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A43B23-087 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C67-202 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A43B23-0255 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A43B23-022 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A43B23-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C41-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C67-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D35-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A43B23-08 |
| filingDate | 1969-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | NL-6906655-A |
| abstract | 1,273,524. Moulding shoes. PORVAIR Ltd. 30 April, 1969 [1 May, 1968], No. 20737/68. Heading B5A. [Also in Division A3] Water vapour permeable, flexible, microporous three dimensionally shaped shoe uppers or upper components having resistance to loss of shape when heated are made by dip moulding a former into a mixture of a polymer extended in a liquid vehicle, e.g., a solvent, and coagulating the layer of polymer formed upon the former by a non-solvent for the polymer. The uniformity and size of the pores may be enhanced by incorporating removable particles of a filler, e.g., salt, in the extended polymer and removing the filler subsequently by means of the non-solvent, e.g., water, in the case of a salt filler. The non-solvent may contain a dye to be transferred into the dip moulded layer to colour it during the coagulating step. In one embodiment multi-layered polyurethane shoe uppers are made by dipping a hollow sintered polyethylene former into successive salt containing polymer mixtures, the former being covered with a reinforcing sock or toe reinforcement if desired. The former is withdrawn at different speeds to give regions of differing thickness if desired and the non-solvent may be applied by dipping in a bath, passing it into the interior of a hollow porous former, or both. The former may be made of wood, metal, for example wire gauge, solid or sintered plastics, or fabric and is internally supported if necessary. Where hollow, the interior of the former is preferably vented by a tube to the atmosphere to promote adhesion of the material to core. |
| priorityDate | 1968-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 |
Total number of triples: 27.