http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1126849-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1c7d818864ce69f0dc8548437f22a997 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0422 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-64 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-26 |
| filingDate | 1967-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1126849-A |
| titleOfInvention | Micro-porous cross-linked olefin polymers |
| abstract | 1,126,849. Microporous olefin polymers. W. R. GRACE & CO. 19 May, 1967 [19 May, 1966], No. 23338/67. Addition to 1,051,320. Headings C3C and C3P. A process for making shaped articles of microporous cross-linked olefin polymers comprises forming a homogeneous mixture of a solid polyethylene, polypropylene or ethylene/vinyl copolymer and 20-400% (on the weight of polymer) of a pore-forming solid of particle diameter 0À1-10 microns, shaping the mixture at a temperature between the m.pt. of the polymer and the gelling pt. of the mixture, cross-linking the olefin polymer, removing the pore-forming solid and, necessarily when the polymer is ethylene, optionally when it is polypropylene or an ethylene/vinyl copolymer, orienting the shaped article. The cross-linking may be achieved by either generating freeradicals in situ, e.g. by heating 1,4-bis-(t-butylperoxyisopropyl) benzene, or by submitting the article to ionizing radiation. The orientation may be uniaxial or, preferably, biaxial and may be achieved by stretching the material at a temperature not more than 10‹ C. below the m.pt. of the polymer and under reduced pressure. The pore-forming solids preferred are sodium chloride, sodium carbonate, sodium benzoate, sodium acetate, silica gel, starch, benzoic acid, hydroquinone, dimethylterephthalate, anthracene, but cane-sugar is the most preferable. In the examples articles of polyethylene, polypropylene, ethylene-propylene, ethylene-vinyl acetate and ethylene-ethyl acrylate copolymers are produced. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5719197-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2672546-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5300291-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9114463-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10680223-B2 |
| priorityDate | 1964-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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