Organosilicon compound and process for its production
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsShinichi Sato, Noriyuki Koike, Takashi Matsuda, Kouichi Ishida
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Abstract
An organosilicon compound represented by the general formula: ##STR1## wherein Rf represents a perfluoroalkyl group or a perfluoroalkyl ether group; R.sup.1 may be the same or different and each represent a monovalent hydrocarbon group; R.sup.2 represents an alkylene group; R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon group; and a is an integer of 1 to 4, b is an integer of 1 to 3 and c is an integer of 0 to 3, provided that a, b and c satisfy the relationship of 3.ltoreq.a+b+c.ltoreq.6; is provided. These organosilicon compounds are novel compounds useful as crosslinking agents for addition-curable silicone rubber compositions.
Claims8
An organosilicon compound represented by the following general formula (1):
- wherein:
- Rf represents a perfluoroalkyl ether group of the formula ##STR27## wherein n is an integer of 1 to 5;
- R.sup.1 may be the same or different and each represent a monovalent hydrocarbon group;
- R.sup.2 represents an alkylene group;
- R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon group;
- and
- a is an integer of 1 to 4, b is an integer of 1 to 3 and c is zero, provided that a, b and c satisfy the relationship of 3.ltoreq.a+b+c.ltoreq.6.
A process for producing an organosilicon compound represented by the following general formula (1):
- ##STR28## wherein:
- Rf represents a perfluoroalkyl ether group of the formula ##STR29## wherein n is an integer of 1 to 5;
- R.sup.1 may be the same or different and each represent a monovalent hydrocarbon group;
- R.sup.2 represents an alkylene group;
- R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon group;
- and
- a is an integer of 1 to 4, b is an integer of 1 to 3 and c is zero, provided that a, b and c satisfy the relationship of 3.ltoreq.a+b+c.ltoreq.6;
- said process comprising the step of subjecting a cyclic hydrosiloxane represented by the following general formula (2):
- ##STR30## wherein R.sup.1, a, b and c are as defined above;
- and a fluorine-containing amide compound containing an unsaturated group, represented by the following general formula (3):
- Rf--CO--N(R.sup.3)--CH.sub.2).sub.m --CH.dbd.CH.sub.2 ( 3)
- wherein m is an integer of 0 to 4, and Rf and R.sup.3 are as defined above;
- to partial addition reaction in the presence of a catalyst.
Dependencies are inferred from the claim text.