Polyolefin reinforcing fibre, use thereof and products comprising same
AssigneeSaint-Gobain Materiaux De Construction S.A.S.
InventorsEric Dallies, Richard Morlat, Christelle Pousse, Gael Cadoret
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Abstract
The subject of the invention is a polyolefin fiber for the reinforcement of products based on fibers and a hydraulic-setting substance, characterized in that it includes a size carrying a function which assists the fiberizing operation, a function in which the fiber can be wetted by the composition of the hydraulic-setting substance, and a function of promoting adhesion to the hydraulic-setting substance. The fiber is used as reinforcing fiber in a product based on fibers and a hydraulic-setting substance.
Claims12
A polyolefin fiber for the reinforcement of products based on fibers and a hydraulic-setting substance, including a size carrying a function which assists the fiberizing operation, a function in which the fiber can be wetted by the composition of the hydraulic-setting substance, and a function of promoting adhesion to the hydraulic-setting substance, and characterized in that the sizing comprises at least a product based on fatty-acid polyethylene glycol ester and phosphoric acid ester compounds, natural-oil-based such as the reference “Synthesin 7292” by Dr. Boehme, or at least a product based on a lubricating and antistatic mixture sold under the reference “KB 144/2” by Cognis, or at least a product based on a fatty-acid-derived polyethylene glycol ester such as the reference “Stantex S6077” by Cognis, or at least a product based on non-ionic surfactant and esterquats such as the reference “Stantex S6087/4” by Cognis.
The polyolefin fiber as claimed in one of the preceding claims, characterized in that the titre of the polyolefin fiber is between 0.5 and 10 dtex.
The polyolefin fiber as claimed in one of the preceding claims, characterized in that the polyolefin fiber has a tenacity of at least 4 cN/dtex, preferably of at least 5 cN/dtex.
The polyolefin fiber as claimed in one of the preceding claims, characterized in that the size is present on the fiber in an amount of 0.05 to 5% by weight of dry matter relative to the dry weight of fiber.
The polyolefin fiber as claimed in one of the preceding claims, characterized in that the size is applied pure or as a solution, dispersion or emulsion, aqueous-based or based on another suitable liquid vehicle.
The use of a fiber as claimed in one of the preceding claims as reinforcing fiber in a product based on fibers and a hydraulic-setting substance.
Dependencies are inferred from the claim text.