摘要:
Eine Beschichtungszusammensetzung, enthaltend I. ein anorganisch-organisches Hybridmaterial, erhalten aus A1. einem oder mehreren teilhydrolysierten Alkoxysilanen der Formel (Ia),
(R 1 O) n SiR 2 3-n R 3 (Ia)
A2. gegebenenfalls einem oder mehreren teilhydrolysierten Alkoxysilanen der Formel (Ib),
(R 4 O) n SiR 5 4-n (Ib)
B1. einem oder mehreren Metallalkoxiden der Formel (IIa),
Ti(OR 6 ) 4 (IIa)
B2. gegebenenfalls einem oder mehreren Metallalkoxiden der Formel (IIb),
M +(4-m) (OR 7 ) 4-m (IIb)
wobei die Symbole und Indizes die in der Beschreibung angegebenen Bedeutungen haben und wobei das molare Verhältnis von Si in Komponente A1 und A2 zu Ti in Komponente B1 1 - 20 : 1 beträgt;
C. einem oder mehreren oligomeren oder polymeren Polyolen; D. einem oder mehreren geblockten, gegebenenfalls modifizierten Polyisocyanaten; E. gegebenenfalls einem oder mehreren Monomeren, Oligomeren und/oder Polymeren, die ein oder mehrere freie Epoxygruppen aufweisen;
II. gegebenenfalls ein oder mehrere Farbmittel und III. gegebenenfalls ein oder mehrere Zusatzstoffe, eignet sich insbesondere zur dekorativen und schützenden Beschichtung von Metall-, Glas- und Kunststoffsubstraten.
摘要:
The present invention relates to a process for the preparation of a hybrid sol-gel coating composition and to the hybrid sol-gel coating composition obtainable by this process: a) providing a first sol obtainable by a process which comprising mixing at least one hydrolysable silicon alkoxide and at least one silicon-organic alkoxide having at least one non-hydrolysable substituent bonded to the silicon atom being the non-hydrolysable substituent other than a substituted or un-substituted (C1-C4)alkyl, one or more C1-C8 alcohols, an aqueous solution of one acid catalyst, and one organic precursor; b) providing a second sol obtainable by a process which comprises mixing at least one hydrolysable metal alkoxide, one or more C1-C8 alcohols, a complexion agent, and an aqueous solution of one acid catalyst; and c) mixing the first sol with the second sol. It also relates to a process for coating a substrate and to the coated substrate obtainable by this process.
摘要:
Compositions are disclosed that comprise at least one compound of formula IV: wherein the variable are as defined in the specification. The compositions are antimicrobial and optionally curable, and useful, inter alia, in dental, medical, and industrial applications for reinforcement and/or adhering two surfaces together.
摘要:
A modified silicone resins of Formula (II) and an elastomer formulation comprising such a modified silicone resins of Formula (II) are presented. Formula (II) comprises at least one of each of the following subunits:
and
The R 1 , R 2 , R 3 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 and R 13 are each independently selected from a group consisting of H, alkyl, alkenyl, alkynyl, and aryl. The X is selected from a group consisting of arylene, transition metal, inorganic oxide, and silsesquioxane. The values of t ranges from 1 to 10, y ranges from 1 to 200 and z ranges from 1 to 1,000. The elastomeric materials prepared from modified silicone resins display robust mechanical properties following prolonged exposure to high temperatures (e.g., 316°C or higher).