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Case Western Reserve University

Kanta Kumar

Morton H Litt

Duane M Pinault

Joanne A Fitch

The present disclosure describes an solid ectoparasite control composition for topical application to the hair coat or fur of a domesticated animal or household pet, such as a dog or cat, to control ectoparasites. The disclosure also describes an applicator package for applying an ectoparasite control composition that is in the form of a molded stick, by rubbing or spreading it on the hair coat of the animal. Methods of making and applying solid ectoparasite control compositions are also described in the present disclosure.

Ectoparasite control stick for domesticated animals

The present application relates to novel silicon based preceramic polymers useful in the production of silicon carbide reinforcement fibers, and to the novel synthesis procedures by which such polymers and reinforcement fibers may be produced. These novel polymers are produced by preparing phenyl substituted polyalkylcyclohexasilane compounds, which are then converted to the corresponding halogen substituted compound by reaction with the appropriate ammonium halide and sulfuric acid in a suitable solvent such as benzene, and then polymerizing the substituted cyclohexasilane by reaction with an alkali metal, again in a suitable solvent such as toluene or benzene, to produce polymers of the general formula: ##STR1## wherein R.sub.1 is lower alkyl, preferably methyl or ethyl, R.sub.2 is lower alkyl or hydrogen, m is 0 to 5, n is at least 3. The polymers of the present invention have an average molecular weight of from about 1000 to 100 million or more.

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Saint Paul, MN, United States of America

Kanta Kumar