Rhone-poulenc Industries

Rhone-poulenc-textile

Marcel Lefort

Michel Bargain

Gilbert Marin

Michel M Gay

Jacques Dunogues

Georges Bakassian

Christian Simonnet

Raymond Calas

Gerard Deleris

The invention provides organosilicon compounds of the formula: ##STR1## in which: n is 1, 2 or 3;

Ethylenic silicon compounds and thermoplastic elastomers obtained

Novel organosilicon compounds and processes for their preparation are disclosed. The compounds are di- and trisilanes of the formula:

Polyethylene silicon compounds

Novel organosilicon compounds and processes for their preparation are disclosed. The compounds are di- and trisilanes of the formula

Novel organosilicon compounds containing various functional groups and processes for their preparation are disclosed. The compounds are silanes represented by the following general formula: ##STR1## wherein R represents a hydrocarbon radical containing a carbon-carbon double bond; R.sub.1 represents a hydrocarbon radical; G represents a divalent carbocyclic aromatic or heterocyclic radical; Y represents a group such as Cl, COCl, or COOH; and, n represents an integer equal to 1 or 2.

Organosilicon compounds with functional groups

The invention provides organosilicon compounds of the formula: ##STR1## in which: N IS 1, 2 OR 3;

Novel polysiloxane thermoplastic elastomers and processes for their preparation are disclosed. The elastomers are obtained by reaction of .alpha.,.omega.-dihydrogenpolysiloxane with a diethylene silicon compound.

Polysiloxane thermoplastic elastomers

A process for preparing hydrogenosilanes by hydrogenating disilanes, especially halogenated disilanes, under relatively mild reaction conditions is disclosed. The hydrogenation is effected in the presence of a catalytic system containing an aprotic compound and a nickel catalyst which consists essentially of finely divided nickel and is obtained by preliminary or in situ reduction of a nickel compound.

Process for the preparation of hydrogenosilanes

Trichlorosilane is dismutated into dichlorosilane in the presence of an .alpha.-pyrrolidone which is N-substituted by a hydrocarbon radical as catalyst.

Dismutation of trichlorosilane

Dichlorosilane and phenyltrichlorosilane are prepared in good yields by reacting trichlorosilane and diphenyldichlorosilane in the presence of aluminium chloride, as catalyst, and a small proportion of a co-catalyst which is selected from hydrochloric acid and alumina and mixtures thereof, isolating the dichlorosilane from the reaction medium as it is formed and isolating the phenyltrichlorosilane obtained at the end of the reaction.

Process for the preparation of chlorosilane

Halogenated vinyl resins are redendered less susceptible to yellowing on heating by the incorporation of stannic chloride as well as a diorgano-tin dimercaptide.

Growing community of inventors

Caluire, France

Marcel Lefort