http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109366839-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-041 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-02 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K105-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C44-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C44-02 |
| filingDate | 2018-09-21^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109366839-B |
| titleOfInvention | Method for preparing closed-cell structure rubber foam material by mould pressing physical foaming |
| abstract | The invention provides a method for preparing a closed-cell structure rubber foam material by mould pressing physical foaming, which comprises the following steps: (1) mixing the raw rubber and a vulcanizing agent uniformly, or mixing the raw rubber, the resin and the vulcanizing agent uniformly; (2) hot-press molding the obtained rubber compound, and pre-vulcanizing the rubber compound in the hot-press molding process to obtain a rubber blank, or radiating the molded rubber compound by using radiation cross-linking equipment to realize pre-vulcanization to obtain a rubber blank; (3) placing the rubber blank in a foaming mould in mould pressing foaming equipment, inputting gas into the foaming mould after mould closing as a foaming agent, controlling the temperature in the foaming mould to be between room temperature and 80 ℃, swelling the rubber blank under the pressure of 0.5-30 MPa, and then releasing pressure to foam the swelled rubber blank; (4) and (4) post-vulcanizing the pre-vulcanized rubber foaming material obtained in the step (3). The method of the invention can improve the quality of the rubber foaming material and promote the industrial production of the high-quality rubber foaming material. |
| priorityDate | 2018-09-21^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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