http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-895992-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb78b459e21bb4fd52850a12cab27387 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N25-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-08 |
| filingDate | 1958-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-895992-A |
| titleOfInvention | Calcium silicate pesticidal carrier |
| abstract | Diatomaceous calcium silicate, produced by reacting hydrated lime and diatomaceous earth as described in Specification 268,011, is reacted at 0 DEG -90 DEG C. in the presence of water with carbon dioxide until a carbonated diatomaceous calcium silicate is obtained which has a bulk density of 8,45 to 0,54 grams per cubic centimeter and which imparts a lower pH to an aqueous system than the diatomaceous calcium silicate before carbonation. The carbonated product is particularly suitable as a pesticide carrier. The carbon dioxide may be employed in gaseous, liquid or solid state; the reaction is preferably effected in the presence of 5-20% by weight of water based on the silicate reactant and continued until 7 to 25 parts by weight of carbon dioxide per 100 parts of silicate are taken up. Termination of carbonation is indicated by abatement of exothermic reaction heat.ALSO:A carbonated diatomaceous calcium silicate, employed as a carrier for pesticides, is prepared by reacting a diatomaceous calcium silicate (the reaction product of hydrated lime and diatomaceous earth) with carbon dioxide in the presence of water (see Group III). The carbonated silicate, which imparts a lower pH to an aqueous solution than the initial silicate reactant, is particularly suitable for base-sensitive pesticides. A typical dry, wettable powder formulation consists of 47 to 87 parts of the carrier, 15-50 parts of the pesticide, 2 parts of a dispersing agent such as a naphthalene sulphonic acid-formaldehyde condensate and 1 part of a wetting agent such as an alkylphenoxypolyethoxyethanol. Specific formulations referred to comprise 72 parts of the carrier, 2 parts of the sodium salt of a copolymer of maleic anhydride and diisobutylene, 1 part of octylphenoxypolyethoxyethanol and 25 parts of either 1,1-bis-(chlorophenyl) - 2,2,2 - trichloroethanol ("Kelthane," Registered Trade Mark), dinitro - (1 - methylheptyl) - phenyl crotonate ("Karathane," Registered Trade Mark), or o,o - dimethyl - 5 - (1,2 - dicarbethoxyethyl) - dithiophosphate ("Malathion," Registered Trade Mark). Further insecticides referred to are octachloro - 4,7 methane tetrahydroindain ("Chlordane," Registered Trade Mark), D.D.T., hexachlorocyclohexane (Lindane), chlorinated camphene (Toxaphene), chloroethyl-methyl (p-tert-butylphenoxy) ethyl sulphite ("Aramite," Registered Trade Mark), ethyl 2-hydroxy-2,2-bis - (4 - chlorophenyl) - acetate (Chlorobenzilate), dichloro - 2,2 - bis - (p - chlorophenyl) - ethane ("Rhothane," Registered Trade Mark), and dichloro - 2,2 - bis - (p - ethylphenyl) ethane ("Perthane," Registered Trade Mark), and dichloro - 2,2 - bis - (p - ethylphenyl) ethane ("Perthane," Registered Trade Mark), and trichloro - 2,2 - bis - (p - methoxy phenyl) ethane (Methoxychlor). Specification 268,011 is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10442696-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015171745-A1 |
| priorityDate | 1957-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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Total number of triples: 58.