Patent GB-1066800-A (GB)
Title: A method of producing silver suspensions
IPC: H01B1/00
Filed: 1963-11-06
Abstract: An aqueous silver suspension for silvering ceramic materials, metals, glass, mica, quartz or ferrites, comprises 30 to 80% by weight of silver powder having a bulk density of 2.8 to 3.2 kilogrammes per litre and an oil capacity of 9 to 16 millilitres per 100 grams dispersed in water together with a varnish component having the following composition:  .Methyl cellulose or carboxy-. .methyl cellulose .. ...0.1 to 2% .Polyethylene oxide .. ...0.1 to 8% .Gum arabic or other water-. .soluble resins.. .. ...0.1 to 6% .Glycerine .. .. ...0.1 to 5% .Ethylene glycol.. .. ...0.1 to 6% .Secondary or normal octyl. .alcohol .. .. ...0.1 to 2% .Triethanolamine .. ...0.1 to 1.5% .Distilled water .. .. ...remainder  An inorganic flux such as bismuth oxide, lead borate, cadmium-bismuth borate or a silicate may be added.  The composition may be applied to ceramic capacitors by spraying, rolling or brushing and is then fired.ALSO:An aqueous silver suspension for silvering ceramic materials, metals, glass, mica, quartz or ferrites, comprises 30 to 80% by weight of silver powder having a bulk density of 2.8 to 3.2 kilogrammes per litre and an oil capacity of 9 to 16 millilitres per 100 grams dispersed in water together with a varnish component having the following composition: .methyl cellulose or carboxy-. .methyl cellulose .. ...0.1 to 2% .polyethylene oxide .. ...0.1 to 8% .gum arabic or other water-. .soluble resins .. ...0.1 to 6% .glycerine .. .. ...0.1 to 5% .ethylene glycol .. ...0.1 to 6% .secondary or normal octyl. .alcohol .. .. ...0.1 to 2% .triethanolamine .. ...0.1 to 1.5% .distilled water .. ...remainder An inorganic flux such as bismuch oxide, lead borate, cadmium-bismuth borate or a silicate may be added.  The composition may be applied to ceramic capacitors by spraying, rolling or brushing and is then fired.ALSO:An aqueous silver suspension for silvering ceramic materials, metals, glass, mica, quartz or ferrites, comprises 30 to 80% by weight of silver powder having a bulk density of 2.8 to 3.2 kilogrammes per litre and an oil capacity of 9 to 16 millilitres per 100 grams dispersed in water together with a varnish component having the following composition: .Methyl cellulose or carboxy-. .methyl cellulose .. ...0.1 to 2% .Polyethylene oxide .. ...0.1 to 8% .Gum arabic or other water-. .soluble resins .. ...0.1 to 6% .Glycerine .. .. ...0.1 to 5% .Ethylene glycol .. ...0.1 to 6% .Secondary or normal octyl. .alcohol .. .. ...0.1 to 2% .Triethanolamine .. ...0.1 to 1.5% .Distilled water .. ...remainder An inorganic flux such as bismuth oxide, lead borate, cadmium-bismuth borate or a silicate may be added.  The composition may be applied to ceramic capacitors by spraying, rolling or brushing and is then fired.ALSO:An aqueous silver suspension for silvering ceramic materials, metals, glass, mica, quartz or ferrites, comprises 30 to 80% by weight of silver powder having a bulk density of 2.8 to 3.2 kilogrammes per litre and an oil capacity of 9 to 16 millilitres per 100 grams dispersed in water together with a varnish component having the following composition: .methyl cellulose or carboxymethyl cellulose. ..0.1 to 2% .polyethylene oxide.0.1 to 8% .gum arabic or other water-soluble resins. ..0.1 to 6% .glycerine.0.1 to 5% .ethylene glycol.0.1 to 6% .secondary or normal octyl alcohol. ..0.1 to 2% .triethanolamine.0.1 to 1.5% .distilled water.remainder An inorganic flux such as bismuth oxide, lead borate, cadmium-bismuth borate or a silicate may be added.  The composition may be applied to ceramic capacitors by spraying, rolling or brushing and is then fired.