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183 results about "Multiple bonds" patented technology

Updated March 08, 2017. Definition: A multiple bond is a bond where two or more electron pairs are shared between two atoms. Examples: Double and triple bonds are multiple bonds.

Process For The Production Of Silicone Coatings and Silicone Moldings From Photocrosslinkable Silicone Mixtures

Silicone coatings and moldings are produced from a photocrosslinkable silicone mixture which contains(A) a polyorganosiloxane containing at least two carbon-carbon multiple bonds,(B) an organosilicon compound containing at least two SiH functions, and(C) a cyclopentadienyl-platinum complex catalyst be activatable by light of 200 to 500 nm,wherein the mixture is heated to 40° C. to 250° C., and then irradiated with light of 200 to 500 nm wavelength.
Owner:WACKER CHEM GMBH

Composition and organic insulator prepared using the same

Disclosed are a composition including a silane-based organic / inorganic hybrid material having a multiple bond and one or more organic metal compounds and / or one or more organic polymers, an organic insulator including the composition, an organic thin film transistor (OTFT) including the organic insulator and an electronic device including the OTFT. The organic insulator including the composition for preparing an organic insulator has increased charge mobility and an increased on / off current ratio, thus exhibiting improved properties, and the organic thin film transistor manifests uniform properties due to the absence of hysteresis.
Owner:SAMSUNG ELECTRONICS CO LTD

Defoamer formulations

The invention relates to defoamer formulations which comprise (A) siloxane-based antifoam agents and (B) polysiloxane copolymers which are obtainable by reacting, in a first step, organopolysiloxanes (1) which comprise at least one Si-bound hydrogen atom, preferably at least two Si-bound hydrogen atoms, per molecule, with the substantially linear oligomer or polymer compounds (2) of the general formula R<1>-(A-CnH2n)m-A<1>-H (I), wherein R<1> represents a monovalent optionally substituted hydrocarbon group to which Si-H groups can be attached in a hydrosilylation reaction, preferably a hydrocarbon group comprising an aliphatic C-C multiple bond, A represents a divalent, polar organic group selected from the group comprising -O-, -C(O)-O-, -O-C(O)-, -O-C(O)-O-, -C(O)-NH-, -NH-C(O)-, a urethane group and a urea group, preferably an oxygen atom -O-, A<1> represents a divalent, polar organic group selected from the group comprising -O-, -NH- and -NR'- (whereby R' represents a monovalent hydrocarbon group with 1 to 18 carbon atoms), n is an integer from 1 to 20 and m is a positive integer, and, in a second step, reacting the intermediate products (4) so obtained which comprise H-A<1> groups with organic compounds (5) having at least two isocyanate groups per molecule, with the proviso that the water content of the compounds (1) and (2) used for producing the polysiloxane copolymers is less than 2000 % ppm, based on the total weight of compounds (1) and (2) .
Owner:WACKER CHEM GMBH
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