摘要:
A silicone composition useful especially for the production of varnishes applicable to substrates whose coefficient of friction it is sought to reduce. The object is to provide an anti-friction silicone varnish for textiles coated with silicone elastomers which is economic and adhesive, provides the desired slip, resists soiling and is shiny. This object is achieved by a crosslinkable silicone composition containing two silicones A and B which react with one another in the presence of a catalyst C to allow crosslinking, and a particulate component D selected from the group comprising powdered (co)polyamides—preferably (co)polyamides 6, 12 and 6/12. The (co)polyamide particles are of substantially rounded shape and the mean particle diameter Φmd is between 0.1 and 200 μm, preferably between 5 and 100 μm and particularly preferably between 10 and 50 μm. Also disclosed is a varnishing process and a composite containing the varnished substrate.
摘要:
A silicone composition useful especially for the production of varnishes applicable to substrates whose coefficient of friction it is sought to reduce. The object is to provide an anti-friction silicone varnish for textiles coated with silicone elastomers which is economic and adhesive, provides the desired slip, resists soiling and is shiny. This object is achieved by a crosslinkable silicone composition containing two silicones A and B which react with one another in the presence of a catalyst C to allow crosslinking, and a particulate component D selected from the group comprising powdered (co)polyamides—preferably (co)polyamides 6, 12 and 6/12. The (co)polyamide particles are of substantially rounded shape and the mean particle diameter Φmd is between 0.1 and 200 μm, preferably between 5 and 100 μm and particularly preferably between 10 and 50 μm. Also disclosed is a varnishing process and a composite containing the varnished substrate.
摘要:
Silicone compositions, particularly for the production of anti-fouling varnishes which may be applied to flexible or bulk supports to provide an anti-fouling silicone varnish for textiles coated with elastomeric silicones which is economical, adhesive, low-slip and glossy; these are crosslinked silicone compositions comprising: A. at least one alkenylsilane, B. at least one catalytic system which comprises: B/1 at least one organometallic condensation catalyst, B/2 at least one metal M chelate and/or one metal alkoxide of general formula M(OJ)n, wherein n=valence of M and J=linear or branched C1-C8 alkyl radical, M being selected from among: Ti, Zr, Ge and Al, C. at least one ultrafine filler, D. optionally, at least one arylsilane other than A. E. optionally, at least one other silane other than A. and other than D., F. optionally, at least one thickening agent and G. optionally, at least one functional additive.
摘要:
Silicone compositions, particularly for the production of anti-fouling varnishes which may be applied to flexible or bulk supports to provide an anti-fouling silicone varnish for textiles coated with elastomeric silicones which is economical, adhesive, low-slip and glossy; these are crosslinked silicone compositions comprising: A. at least one alkenylsilane, B. at least one catalytic system which comprises: B/1 at least one organometallic condensation catalyst, B/2 at least one metal M chelate and/or one metal alkoxide of general formula M(OJ)n, wherein n=valence of M and J=linear or branched C1-C8 alkyl radical, M being selected from among: Ti, Zr, Ge and Al, C. at least one ultrafine filler, D. optionally, at least one arylsilane other than A. E. optionally, at least one other silane other than A. and other than D., F. optionally, at least one thickening agent and G. optionally, at least one functional additive.
摘要:
Silicone compositions, particularly for the production of anti-fouling varnishes which may be applied to flexible or bulk supports to provide an anti-fouling silicone varnish for textiles coated with elastomeric silicones which is economical, adhesive, low-slip and glossy; these are crosslinked silicone compositions comprising: A. at least one alkenylsilane, B. at least one catalytic system which comprises: B/1 at least one organometallic condensation catalyst, B/2 at least one metal M chelate and/or one metal alkoxide of general formula M(OJ)n, wherein n=valence of M and J=linear or branched C1-C8 alkyl radical, M being selected from among: Ti, Zr, Ge and Al, C. at least one ultrafine filler, D. optionally, at least one arylsilane other than A. E. optionally, at least one other silane other than A. and other than D., F. optionally, at least one thickening agent and G. optionally, at least one functional additive.
摘要:
Silicone compositions particularly useful for the production of anti-fouling varnishes for application to support substrates, these providing an anti-fouling varnish for textiles covered with silicone elastomers which is economical, adhesive, non-slip and glossy; the subject varnishes comprise a crosslinkable silicone composition containing, per 100 parts by weight: 1, at least 80 parts by weight of: (1.1), 2., 0.1 to 10 parts of weight of: (1.2), 3., 0 to 10 parts by weight of at least one polydimethylisiloxane (PDMS) acrylate or epoxide, 4., 0 to 10 parts by weight of at least one silylated compound which includes at least one ultrafine filler, 7., 0 to 10 parts by weight of at least one thickener, and 8., 0 to 10 parts by weigh of at least one additional functional additive.
摘要:
Silicone compositions particularly useful for the production of anti-fouling varnishes for application to support substrates, these providing an anti-fouling varnish for textiles covered with silicone elastomers which is economical, adhesive, non-slip and glossy; the subject varnishes comprise a crosslinkable silicone composition containing, per 100 parts by weight: 1, at least 80 parts by weight of: (1.1), 2., 0.1 to 10 parts of weight of: (1.2), 3., 0 to 10 parts by weight of at least one polydimethylisiloxane (PDMS) acrylate or epoxide, 4., 0 to 10 parts by weight of at least one silylated compound which includes at least one ultrafine filler, 7., 0 to 10 parts by weight of at least one thickener, and 8., 0 to 10 parts by weigh of at least one additional functional additive.
摘要:
A process for increasing the surface tension (“wettability”) of a silicone element crosslinked by polyaddition from a liquid composition containing one or more α, ω-dimethylvinylpolydimethylsiloxanes (PDMS), one or more poly(dimethyl) (methylhydrogenosiloxy)-α,ω-dimethylhydrogenosiloxanes, and a platinum crosslinking catalyst. The silicone surface is treated with a homogeneous atmospheric plasma using a plasma spraying apparatus having a rotating head with one or more plasma nozzles that are offset relative to the axis of rotation, each one being capable of generating a plasma jet whose axis is parallel to said axis of rotation. The articles to which the invention relate include composites of flexible substrate (e.g. textile)/silicone coating. Application: adhesive bonding of silicone surfaces crosslinked by ≡Si—H/≡Si-vinyl polyaddition.
摘要:
A process for increasing the surface tension (“wettability”) of a silicone element crosslinked by polyaddition from a liquid composition containing one or more α,ω-dimethylvinylpolydimethylsiloxanes (PDMS), one or more poly(dimethyl)(methylhydrogenosiloxy)-α,ω-dimethylhydrogenosiloxanes, and a platinum crosslinking catalyst. The silicone surface is treated with a homogeneous atmospheric plasma using a plasma spraying apparatus having a rotating head with one or more plasma nozzles that are offset relative to the axis of rotation, each one being capable of generating a plasma jet whose axis is parallel to said axis of rotation. The articles to which the invention relate include composites of flexible substrate (e.g. textile)/silicone coating. Application: adhesive bonding of silicone surfaces crosslinked by ≡Si—H/≡Si-vinyl polyaddition.
摘要:
An aqueous polyorganosiloxane (POS) emulsion which can easily be deposited on/applied to a fibrous substrate at high speed and at limited deposition rates, for example less than 40 g/m2. The emulsion contains (A) a POS with ≡Si-vinyl units, (B) a POS with ≡SiH units, (C) an adhesion promoter, (D) a catalyst, (E) at least one surfactant, (F) optionally a POS resin with ≡Si-vinyl units, (G) optionally a crosslinking inhibitor, (H) optionally a pH fixing agent, (I) optionally a formulating additive, (J) optionally a filler, and (K) water. Adhesion promoter (C) is selected from protective hydrocolloids, hydroxylated silanes and/or POS carrying at least one hydroxyl group and at least one salified amino group per molecule, and mixtures thereof, and is present in the range from 0.005 to 10% by weight, based on the silicone phase. Also disclosed is the corresponding coating process and the coated substrate.
摘要翻译:一种水溶性聚有机硅氧烷(POS)乳液,其可以容易地以高速和有限的沉积速率沉积在/施加到纤维基材上,例如小于40g / m 2。 乳液含有(A)具有≡Si-乙烯基单元的POS,(B)具有≡SiH单元的POS,(C)粘合促进剂,(D)催化剂,(E)至少一种表面活性剂,(F) 具有≡Si-乙烯基单元的POS树脂,(G)任选的交联抑制剂,(H)任选的pH固定剂,(I)任选的配制添加剂,(J)任选的填料和(K)水。 粘合促进剂(C)选自保护性水胶体,羟基化硅烷和/或POS,每个分子具有至少一个羟基和至少一个成盐氨基,以及它们的混合物,并且其含量范围为0.005-10重量% ,基于有机硅相。 还公开了相应的涂覆工艺和涂覆的基材。