Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1979-09-20
1981-02-03
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
106 1832, 556424, 528 38, 424184, 427 2, 427387, C08G 7704
Patent
active
042489920
ABSTRACT:
The invention provides a novel class of organosilicon compounds having in a molecule at least one monovalent guanidyl group represented by the general formula ##STR1## in which R is a hydrogen atom or a monovalent hydrocarbon group. Typical examples of the organosilicon compounds are 2-[3-(trimethoxysilyl)propyl]-1,1,3,3-tetramethylguanidine and 2-[3-(methyldimethoxysilyl)propyl]-1,1,3,3-tetramethylguanidine as well as the organopolysiloxanes as the hydrolysis-condensation products of these guanidyl-containing organosilanes.
The guanidyl-containing organosilicon compounds are readily synthesized by the dehydrohalogenation reaction between an organosilicon compound having in a molecule at least one halogen-substituted monovalent hydrocarbon group and a guanidine compound in the presence of an acid acceptor.
The guanidyl-containing organosilicon compounds are useful in preventing growth of microbial organisms, e.g. molds, on the surface of articles made of various rubbers and plastics, especially, silicone rubbers.
REFERENCES:
patent: 3819563 (1974-06-01), Takago et al.
patent: 4020044 (1977-04-01), Crossan et al.
patent: 4180642 (1979-12-01), Takago
Marquis Melvyn I.
Shin-Etsu Chemical Co. , Ltd.
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