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US 8,912,260 B2Granted
Liquid film based on silane-terminated polymers
AssigneeSika Technology AG
InventorsThomas Pusel, Raphael Teysseire, Willi Tenisch, Susanne Strauss, Barbara Jucker, Carsten Zilg
Life of this patent
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Abstract
A composition that includes at least one silane-functional polymer P and 20 to 60% by weight of aluminum hydroxide or magnesium hydroxide or mixture thereof, is disclosed. The composition has a viscosity of 500 to 20,000 mPa·s measured according to DIN 53018 at a temperature of 20° C. The composition is suitable as a liquid membrane and has very good flammability properties, i.e., it is difficult to ignite and is self-extinguishing.
Claims32
A composition, comprising:
- a) at least one silane-functional polymer P having end groups of Formula (II)
- wherein
- the radical R1 stands for a linear or branched, monovalent hydrocarbon radical with 1 to 8 C atoms;
- the radical R2 stands for an acyl radical or for a linear or branched, monovalent hydrocarbon radical with 1 to 5 C atoms;
- the radical R3 stands for a linear or branched, divalent hydrocarbon radical with 1 to 12 C atoms, which optionally has cyclic and/or aromatic portions;
- and
- a stands for a value of 0 or 1 or 2;
- and
- b) 20 to 60% by weight of aluminum hydroxide, magnesium hydroxide or a mixture thereof;
- wherein the composition has a viscosity of 500 to 20,000 mPa·s that is measured according to DIN 53018 at a temperature of 20° C.,
- wherein the composition further comprises at least one phosphorus compound of Formula (I)
- wherein either
- the radical R12 stands for a radical of Formula —OR15;
- the radical R15 stands for a linear or branched, monovalent hydrocarbon radical with 1 to 18 C atoms, which optionally has one or more heteroatoms, and optionally one or more C—C multiple bonds and/or optionally cycloaliphatic and/or aromatic portions;
- the radical R13 stands for a hydrogen atom or for a radical R14;
- the radical R14 stands for a radical of Formula —OR16;
- the radical R16 stands for a hydrogen atom or for a linear or branched, monovalent hydrocarbon radical with 1 to 18 C atoms, which optionally has one or more heteroatoms, and optionally one or more C—C multiple bonds and/or optionally cycloaliphatic and/or aromatic portions;
- and
- the index m stands for a value of 0, 1 or 2;
- or
- each of radicals R12, R13 and R14 stands for a radical of Formula —O−NH4+;
- and the index m stands for a value of 0 to 1,000,
- wherein the proportion of the phosphorus compound of Formula (I) is 5 to 50% by weight of the entire composition.
20 more elements
A method for the production of a film for sealing a substrate, the method comprising:
- i) providing a composition comprising:
- a) at least one silane-functional polymer P having end groups of Formula (II)
- wherein
- the radical R1 stands for a linear or branched, monovalent hydrocarbon radical with 1 to 8 C atoms;
- the radical R2 stands for an acyl radical or for a linear or branched, monovalent hydrocarbon radical with 1 to 5 C atoms;
- the radical R3 stands for a linear or branched, divalent hydrocarbon radical with 1 to 12 C atoms, which optionally has cyclic and/or aromatic portions;
- and
- a stands for a value of 0 or 1 or 2;
- and
- b) 20 to 60% by weight of aluminum hydroxide, magnesium hydroxide or a mixture thereof;
- wherein the composition has a viscosity of 500 to 20,000 mPa·s that is measured according to DIN 53018 at a temperature of 20° C.,
- ii) applying the composition in a fluid state to the substrate to be sealed;
- iii) curing of the applied composition by means of moisture to form a film,
- wherein the composition is applied in multiple layers.
11 more elements
A method for the production of a film for sealing a substrate, the method comprising:
- i) providing a composition comprising:
- a) at least one silane-functional polymer P having end groups of Formula (II)
- wherein
- the radical R1 stands for a linear or branched, monovalent hydrocarbon radical with 1 to 8 C atoms;
- the radical R2 stands for an acyl radical or for a linear or branched, monovalent hydrocarbon radical with 1 to 5 C atoms;
- the radical R3 stands for a linear or branched, divalent hydrocarbon radical with 1 to 12 C atoms, which optionally has cyclic and/or aromatic portions;
- and
- a stands for a value of 0 or 1 or 2;
- and
- b) 20 to 60% by weight of aluminum hydroxide, magnesium hydroxide or a mixture thereof;
- wherein the composition has a viscosity of 500 to 20,000 mPa·s that is measured according to DIN 53018 at a temperature of 20° C.,
- ii) applying the composition in a fluid state to the substrate to be sealed;
- iii) curing of the applied composition by means of moisture to form a film,
- wherein a material is disposed on and/or under a layer of the composition and/or between layers of the composition in the case of a multi-layer application.
11 more elements
A method for the production of a film for sealing a substrate, the method comprising:
- i) providing a composition comprising:
- a) at least one silane-functional polymer P having end groups of Formula (II)
- wherein
- the radical R1 stands for a linear or branched, monovalent hydrocarbon radical with 1 to 8 C atoms;
- the radical R2 stands for an acyl radical or for a linear or branched, monovalent hydrocarbon radical with 1 to 5 C atoms;
- the radical R3 stands for a linear or branched, divalent hydrocarbon radical with 1 to 12 C atoms, which optionally has cyclic and/or aromatic portions;
- and
- a stands for a value of 0 or 1 or 2;
- and
- b) 20 to 60% by weight of aluminum hydroxide, magnesium hydroxide or a mixture thereof;
- wherein the composition has a viscosity of 500 to 20,000 mPa·s that is measured according to DIN 53018 at a temperature of 20° C.,
- ii) applying the composition in a fluid state to the substrate to be sealed;
- iii) curing of the applied composition by means of moisture to form a film,
- wherein the composition is applied to the substrate using an airless spraying device.
11 more elements
Dependencies are inferred from the claim text.