Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1980-10-30
1983-03-01
Robinson, Ellis P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
428285, 428417, 428430, 428426, 174DIG1, 501 35, 501 70, C08K 340
Patent
active
043755275
ABSTRACT:
The resistance of insulating pieces made of fiberglass reinforced plastics against the decay products of SF.sub.6, such as occur within sealed high-voltage switching devices is unexpectedly enhanced by the use of a reinforcing fiberglass made of a low-alkali silicate glass containing neither boron nor boron-compounds.
REFERENCES:
patent: 3467760 (1969-09-01), Hugi
patent: 3574104 (1971-04-01), Medler
patent: 3945838 (1976-03-01), Erickson
patent: 4046948 (1977-09-01), Zlochower
patent: 4199364 (1980-04-01), Neely
patent: 4251590 (1981-02-01), Rubright
patent: 4263364 (1981-04-01), Seymour
Robinson Ellis P.
Sprecher & Schuh AG
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