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US 2025/0067052 A1Published application
Silicone membranes
AssigneeHolcim Technology Ltd
InventorArthur James TSELEPIS
Life of this patent
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Abstract
Silicone membranes and methods of manufacturing membranes are provided.
Claims17
A silicone roofing membrane comprising:
- (i) a substrate;
- and
- (ii) a silicone composition coating at least a portion of the substrate, wherein the substrate is a mesh or fabric, and wherein the silicone composition comprises a cross-linked polysiloxane.
An emulsion for preparing a silicone membrane, comprising:
- (i) 40 to 60 wt % of a hydroxyl-terminated polysiloxane;
- (ii) 1 to 3 wt % of a crosslinker;
- (iii) 0.1 to 1 wt % of a catalyst;
- (iv) 1 to 3 wt % of a surfactant;
- and
- (v) 40 to 60 wt % water;
- wherein wt % is based on total weight of the composition.
4 more elements
A method of preparing an emulsion useful for the manufacture of silicone membranes, the method comprising:
- (i) mixing a hydroxyl-terminated polysiloxane, a crosslinker, and a catalyst, to provide a first mixture;
- (ii) mixing a surfactant and water to provide a second mixture;
- and
- (iii) combining and mixing the first and second mixtures to provide an emulsion.
1 more element
Dependencies are inferred from the claim text.