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US 10,829,415 B2Granted
Surface-modified polyolefin fibers
AssigneeConstruction Research & Technology GmbH
InventorsRoberta Magarotto, Francesca Moratti, Sandro Moro, Marino Colasuonno, Alessandro Patelli, Bryan Erick Barragan
Life of this patent
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Abstract
The present invention relates to surface-modified polyolefin fibers, the use of these fibers in hydraulic binder compositions, hydraulic binder compositions containing these fibers and a method for reinforcing hydraulic binder compositions.
Claims23
An inorganic binder composition containing surface-modified polyolefin fibers obtained by a process comprising the steps of
- a) a pretreatment of the polyolefin fibers by plasma treatment with an electrically excitable gas selected from air, oxygen, water, and mixtures thereof in a plasma reactor to obtain polyolefin fibers with polar groups on the surface and
- b) plasma treatment of the polyolefin fibers with an electrically excitable gas in the presence of a gaseous siloxane compound in a plasma reactor.
An inorganic binder composition containing surface-modified polyolefin fibers obtained by a process comprising the steps of
- a) a pretreatment of the polyolefin fibers by plasma treatment with an electrically excitable gas in a plasma reactor to obtain polyolefin fibers with polar groups on the surface;
- and
- b) plasma treatment of the polyolefin fibers with an electrically excitable gas in the presence of a gaseous silazane compound in a plasma reactor.
Dependencies are inferred from the claim text.