http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2416128-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18a3206eaadc0ccb8c66ffbb4e7a66f4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C21-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J61-46 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J61-46 |
| filingDate | 1974-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47ecf99d7741f516202e8ba28b60e2a4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6a7cf01222866ce81e992285fe08a0d |
| publicationDate | 1975-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2416128-A1 |
| titleOfInvention | PROCESS TO INCREASE THE DURABILITY OF ALKALINE-CONTAINING GLASSES, IN PARTICULAR SODIUM-CALC-SILICATE GLASSES |
| abstract | Resistance of alkali-contg. glass to greying under Hg vapour low pressure discharge is improved by (a) contacting the glass surface, pref. for 1-100 secs., with an aq. soln. of an opt. org. Cs salt at pH 1-8, and (b) heating to =120 degrees C above vitreous transformation temp. to form a Cs ion-contg. and Na ion-depleted surface exchange layer, which prevents subsequent migration of Na ions from lower lying layers to surface. Used for soda-lime silicate glass for lamp bulbs and tubes, esp. fluorescent lamps. Amalgam formation with Na ions migrating to lamp-glass surface is prevented and service-life of clear lamp bulb or tube is increased. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2335948-A1 |
| priorityDate | 1974-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.