Patent classifications
C08K5/5477
Condensation-curable silicone resin composition
One of the purposes of the present invention is to provide a condensation-curable silicone resin composition which show a less increase of the viscosity during handling and cures quickly to provide a cured product which has a very small amount of a remaining catalyst and which has high heat resistance and high light resistance. Thus, the present invention is to provide a condensation-curable silicone composition comprising the following components (A) to (C): (A) 100 parts by mass of an organopolysiloxane which has a branched or network structure and has two or more hydrolyzable groups each bonded to a silicon atom and at least one of (R.sup.1SiO.sub.3/2) and (SiO.sub.4/2) units, wherein R.sup.1 is, independently of each other, a hydrogen atom or a substituted or unsubstituted, monovalent hydrocarbon group having 1 to 12 carbon atoms, (B) 5 to 500 parts by mass of a linear organopolysiloxane having at least one hydrolyzable group bonded to a silicon atom at each of both terminals, and (C) at least one silazane compound represented by the following general formula (3) or (5) or comprising the following units (6) in an amount of 0.02 to 30 parts by mass, relative to total 100 parts by mass of components (A) and (B): ##STR00001##
Conductive self-healing network
Disclosed herein are self-healing conductive network compositions. The networks can contain one or more conductive polymers and one or more supramolecular complexes. The supramolecular complex can be introduced into conductive polymer matrix, resulting in a network of the two components. In this network, the nanostructured conductive polymer gel constructs a 3D network to promote the transport of electrons and mechanically reinforce the network while the supramolecular complex contributes to self-healing property and also conductivity. The networks disclosed herein are useful for various applications such as self-healing electronics, artificial skins, soft robotics and biomimetic prostheses.
LAMINATE AND ITS PRODUCTION METHOD
To provide a laminate having a surface layer with a small water sliding angle.
A laminate comprising a substrate, an interlayer formed on the substrate, and a surface layer formed on the interlayer,
wherein the interlayer is a layer formed by using a triazine compound having at least one of a M-OH group (wherein M is a metal atom or a silicon atom) and a group capable of forming the M-OH group, at least one of an amino group and a mercapto group, and a triazine ring, and
the surface layer is a layer formed by using a fluorinated ether compound having a poly(oxyperfluoroalkylene) chain, and at least one of a hydrolyzable group bonded to a silicon atom and a hydroxy group bonded to a silicon atom.
ADDITION-CURABLE SILICONE RUBBER COMPOSITION AND AIR BAG
An addition-curable silicone rubber composition and an air bag are provided.
The addition-curable silicone rubber composition is characterized by comprising: (A) 100 parts by mass of an alkenyl-group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane, contained in such an amount that the number of moles of silicon-atom-bonded hydrogen atoms contained in (B) component is 5 or greater per mole of the alkenyl groups contained in (A) component; (C) an addition reaction catalyst, contained in an amount of 1-500 ppm, in terms of the mass of the catalyst metal element, of the total mass of (A) and (B) components; (D) 0.1-50 parts by mass of finely powdery silica; (E) 0.1-5.0 parts by mass of an adhesion improver [a mixture comprising (E-1) an organohydrogenpolysiloxane, (E-2) an alkoxysilyl-modified isocyanurate compound, and (E-3) an organosilicon compound]; and (F) 0.1-5.0 parts by mass of a condensation catalyst.
ADDITION-CURABLE SILICONE RUBBER COMPOSITION AND AIR BAG
An addition-curable silicone rubber composition and an air bag are provided.
The addition-curable silicone rubber composition is characterized by comprising: (A) 100 parts by mass of an alkenyl-group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane, contained in such an amount that the number of moles of silicon-atom-bonded hydrogen atoms contained in (B) component is 5 or greater per mole of the alkenyl groups contained in (A) component; (C) an addition reaction catalyst, contained in an amount of 1-500 ppm, in terms of the mass of the catalyst metal element, of the total mass of (A) and (B) components; (D) 0.1-50 parts by mass of finely powdery silica; (E) 0.1-5.0 parts by mass of an adhesion improver [a mixture comprising (E-1) an organohydrogenpolysiloxane, (E-2) an alkoxysilyl-modified isocyanurate compound, and (E-3) an organosilicon compound]; and (F) 0.1-5.0 parts by mass of a condensation catalyst.
Curable silicone compositions
The invention relates to curable compositions based on polyorganosiloxanes with special silicon-containing terminal groups, a special capped adhesion promoter, and a curing catalyst. These compositions have improved adhesion properties and excellent storage stability. The invention furthermore relates to the use thereof.
POLYMER NETWORK FORMING SILANE COMPOSITIONS
A silane based additive, rubber formulations including the additive and tires having tread portions made with the additive, together with methods of forming those products, are provided. Uncured rubber formulations in accordance with preferred embodiments of the invention comprise (1) a rubbery primary polymer or polymer blend, such as natural rubber and/or synthetic rubber; (2) reinforcing silica filler; (3) a network forming monomer or polymer, especially a thermosetting network forming moiety, for forming a secondary polymeric network; and (4) a silane containing one or more moieties of the aforementioned network forming polymer. In particular networks which can be generated in-situ are preferred. The cured rubber formulation should comprise the silica, having the secondary polymer network coupled thereto, within the rubber matrix, and not directly to the rubber chains via sulfidic linkages.
LIQUID CURABLE SILICONE ADHESIVE COMPOSITION, CURED PRODUCT THEREOF, AND USE THEREOF
A liquid curable silicone adhesive composition is provided. The composition is generally storage stable as a one-part composition at room temperature, can primarily cure at room temperature in the presence of moisture, and can secondarily cure at high temperatures, and can form a strong adhesive layer on a substrate or member. The liquid curable silicone adhesive composition comprises: a curable reactive organopolysiloxane which has a radical reactive group and a condensation reactive group in the same molecule or throughout the mixture; a condensation reaction catalyst; an organic peroxide; an adhesion imparting agent; and a crosslinkable silane. Herein, regarding the storage modulus (G.sub.1) of a cured product obtained by primarily curing the composition in the presence of moisture approximately at room temperature, along with the storage elastic modulus (G.sub.2) of a cured pro duct obtained by curing the composition, the increase rate () of the storage elastic modulus is at least 50%.
LIQUID CURABLE SILICONE ADHESIVE COMPOSITION, CURED PRODUCT THEREOF, AND USE THEREOF
A liquid curable silicone adhesive composition is provided. The composition is generally storage stable as a one-part composition at room temperature, can primarily cure at room temperature in the presence of moisture, and can secondarily cure at high temperatures, and can form a strong adhesive layer on a substrate or member. The liquid curable silicone adhesive composition comprises: a curable reactive organopolysiloxane which has a radical reactive group and a condensation reactive group in the same molecule or throughout the mixture; a condensation reaction catalyst; an organic peroxide; an adhesion imparting agent; and a crosslinkable silane. Herein, regarding the storage modulus (G.sub.1) of a cured product obtained by primarily curing the composition in the presence of moisture approximately at room temperature, along with the storage elastic modulus (G.sub.2) of a cured pro duct obtained by curing the composition, the increase rate () of the storage elastic modulus is at least 50%.
FLUOROPOLYMER COATINGS COMPRISING AZIRIDINE COMPOUNDS AND NON-FLUORINATED POLYMER
A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.