http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3678756-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9a77ea60ea09c6d4a69a21b0bc0ef9af http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_82a8e4a7056c24da41e39b1b0f01ceff http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c773625573918ed76680fac19cc359f9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M3-329 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M3-202 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M3-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M3-20 |
| filingDate | 1969-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd11919acc5b4406a0f610392d5ab6a9 |
| publicationDate | 1972-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3678756-A |
| titleOfInvention | Capsules and method for testing capsules for wall integrity |
| abstract | Capsules having a cross-linked permeable continuous elastomeric shell are tested for leaks and for wall strength by a process in which gas or vapor is suddenly formed within the capsule to inflate acceptable capsules but to split, explode, or leave uninflated capsules with defective, weak, or leaking elastomeric shells. Methods useful for sudden formation of gas are: previous long exposure of the capsules to an inert gas at high pressure followed by sudden release of external pressure, incorporation of a solid vaporizable core around which the elastomeric shell is formed followed by subsequent rapid vaporization of the core, and formation of the elastomeric shell around a core that contains a significant quantity of vaporizable solvent held therein by capillary forces, when the core is microporous, or by solvation energy in the case of cross-linked polymeric materials. The acceptable inflated capsules are then separated from the unacceptable capsules on the basis of size or density. The acceptable capsules can be filled with a solid material such as a drug by immersing the capsules in a solution of the solid material to effect effusion of the solution into the capsule and subsequently evaporating the solvent from the capsules. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4831870-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2642032-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11740153-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5762959-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022128431-A1 |
| priorityDate | 1969-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 100.