摘要:
The invention relates to cross-linkable or cross-linked silicone compositions that can be used, in particular, to form a non-stick water-repellent coating for flexible substrates, for example paper or similar, in the form of natural or synthetic polymer films.
摘要:
The invention relates to cross-linkable or cross-linked silicone compositions that can be used, in particular, to form a non-stick water-repellent coating for flexible substrates, for example paper or similar, in the form of natural or synthetic polymer films.
摘要:
Silicone composites subject to reticulation or reticulated, particularly for creating a coating or water-repellent and anti-adhesive film for flexible substrates such as paper or similar in the form of natural or synthetic polymer films. These compounds contain reticulating polyorganosiloxanes that have SiH units and unsaturated polyorganosiloxanes, preferably vinylated, suitable for reacting with the reticulating agent in an addition reaction and in the presence of platinum to form the reticulated anti-adhesive coating on the flexible substrate, plus at least one additive (D) to promote adhesion to it. A new liquid silicone compound can be applied without using a solvent, which is beneficial, that can be reticulated instantly to produce an anti-adhesive and/or water-repellent coating for the flexible substrate, giving very high quality reticulated silicone coatings, particularly in terms of sticking/adhering to the substrate, being harder to rub off and the anti-adhesion profile (sufficiently increase detaching force at high speed.
摘要:
Silicone composites subject to reticulation or reticulated, particularly for creating a coating or water-repellent and anti-adhesive film for flexible substrates such as paper or similar in the form of natural or synthetic polymer films. These compounds contain reticulating polyorganosiloxanes that have SiH units and unsaturated polyorganosiloxanes, preferably vinylated, suitable for reacting with the reticulating agent in an addition reaction and in the presence of platinum to form the reticulated anti-adhesive coating on the flexible substrate, plus at least one additive (D) to promote adhesion to it. A new liquid silicone compound can be applied without using a solvent, which is beneficial, that can be reticulated instantly to produce an anti-adhesive and/or water-repellent coating for the flexible substrate, giving very high quality reticulated silicone coatings, particularly in terms of sticking/adhering to the substrate, being harder to rub off and the anti-adhesion profile (sufficiently increase detaching force at high speed.
摘要:
Silicon compositions with the silicon compound ingredient A alkenylated PolyOrganoSiloxane (POS) containing an F1 fraction and an F2 fraction that are different from each other; F2, an adherence enhancer comprising a linear monoalkenylated silicon oil (A2.1) at one of its ends and/or a long linear α,ω,-alkenylated silicon oil (A2.2) and/or a “weakly alkenylated linear oil. Applications: non-stick silicon coatings obtained from crosslinking/polyaddition for PET.
摘要:
Silicone composites subject to reticulation or reticulated, particularly for creating a coating or water-repellent and anti-adhesive film for flexible substrates such as paper or similar in the form of natural or synthetic polymer films. These compounds contain reticulating polyorganosiloxanes that have SiH units and unsaturated polyorganosiloxanes, preferably vinylated, suitable for reacting with the reticulating agent in an addition reaction and in the presence of platinum to form the reticulated anti-adhesive coating on the flexible substrate, plus at least one additive (D) to promote adhesion to it. A new liquid silicone compound can be applied without using a solvent, which is beneficial, that can be reticulated instantly to produce an anti-adhesive and/or water-repellent coating for the flexible substrate, giving very high quality reticulated silicone coatings, particularly in terms of sticking/adhering to the substrate, being harder to rub off and the anti-adhesion profile (sufficiently increase detaching force at high speed.
摘要:
Silicone composites subject to reticulation or reticulated, particularly for creating a coating or water-repellent and anti-adhesive film for flexible substrates such as paper or similar in the form of natural or synthetic polymer films. These compounds contain reticulating polyorganosiloxanes that have SiH units and unsaturated polyorganosiloxanes, preferably vinylated, suitable for reacting with the reticulating agent in an addition reaction and in the presence of platinum to form the reticulated anti-adhesive coating on the flexible substrate, plus at least one additive (D) to promote adhesion to it. A new liquid silicone compound can be applied without using a solvent, which is beneficial, that can be reticulated instantly to produce an anti-adhesive and/or water-repellent coating for the flexible substrate, giving very high quality reticulated silicone coatings, particularly in terms of sticking/adhering to the substrate, being harder to rub off and the anti-adhesion profile (sufficiently increase detaching force at high speed.
摘要:
Crosslinkable or crosslinked silicone compositions, forming water-repellent and release coating for a flexible heat sensitive support of paper or polymer, and comprising crosslinking polyorganosiloxanes (POSs) bearing ≡Si—H units and unsaturated, preferably ≡Si-Vi, vinyl-containing POSs, capable of reacting with the crosslinker by polyaddition, in the presence of platinum in order to form the crosslinked release coating on the flexible support. The object is enabling the coating composition to crosslink instantaneously to produce, on various flexible supports (paper, e.g. glassine, or polymer, e.g. polyester such as polyethylene terephthalate PET), a crosslinked silicone coating leaving the coating machine, with excellent attachment (adhesion) and mechanical strength or cohesion—“Rub-off”—properties. The invention uses, per 100 parts by weight of silicone base, of 1 to 40 parts by weight of an additive comprising from 1 or 5 to 80% by weight of particulate filler, preferably nanoscale filler, in a silicone oil reacting with the crosslinker.
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。
摘要:
Crosslinkable or crosslinked silicone compositions, forming water-repellent and release coating for a flexible heat sensitive support of paper or polymer, and comprising crosslinking polyorganosiloxanes (POSs) bearing ≡Si—H units and unsaturated, preferably ≡Si-Vi, vinyl-containing POSs, capable of reacting with the crosslinker by polyaddition, in the presence of platinum in order to form the crosslinked release coating on the flexible support. The object is enabling the coating composition to crosslink instantaneously to produce, on various flexible supports (paper, e.g. glassine, or polymer, e.g. polyester such as polyethylene terephthalate PET), a crosslinked silicone coating leaving the coating machine, with excellent attachment (adhesion) and mechanical strength or cohesion—“Rub-off”—properties. The invention uses, per 100 parts by weight of silicone base, of 1 to 40 parts by weight of an additive comprising from 1 or 5 to 80% by weight of particulate filler, preferably nanoscale filler, in a silicone oil reacting with the crosslinker.