Patents by Inventor Lionel KIEFER

Lionel KIEFER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11548816
    Abstract: A process for manufacturing insulating products based on mineral wool includes: the application, on mineral wool fibers, of a binder composition containing (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars and a mixture thereof, and (b) at least one crosslinking agent for crosslinking the carbohydrate(s); the evaporation of the solvent phase of the binder composition; and the thermal curing of the non-volatile fraction of the composition. A polysaccharide-free oil-in-water emulsion comprising water, a mineral oil and from 0.5 to 5.0 parts by weight per 100 parts by weight of mineral oil of at least one preferably nonionic surfactant, is added to the binder composition, preferably immediately before the application thereof onto the mineral wool fibers, the mean diameter of the oil droplets of the oil-in-water emulsion, determined by laser diffraction particle size analysis, being greater than 5 ?m.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: January 10, 2023
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Joel Azevedo, Lionel Kiefer
  • Publication number: 20210323010
    Abstract: A system for spraying products onto glass fibers, designed to spray at least one sizing composition and an anti-dust agent onto the glass fibers includes two separate annular spraying elements which are successively arranged on the path of the glass fibers, the two spraying elements including a first annular element for spraying the sizing composition and a second annular element for spraying the anti-dust agent, each one embodied by at least one specific annular crown surrounding the glass fibers. The second annular element for spraying the anti-dust agent is arranged downstream of the first annular element for spraying the sizing composition in relation to the path of the glass fibers.
    Type: Application
    Filed: July 29, 2019
    Publication date: October 21, 2021
    Inventors: Guillaume PAILLARD, Lionel KIEFER
  • Patent number: 11124905
    Abstract: A process for manufacturing insulating products based on mineral wool includes applying, on mineral wool fibers, a binding composition containing (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars, and a mixture thereof, and (b) at least one crosslinking agent for crosslinking the carbohydrate(s). The process also includes evaporating the solvent phase of the binding composition and thermal curing the non-volatile fraction of the composition. Further, added to the binding composition, preferably immediately before the application thereof on the mineral wool fibers, is an oil-in-water emulsion including water, a mineral oil, at least one nonionic surfactant and a water-soluble polysaccharide. The mean diameter of the oil droplets of the stable oil-in-water emulsion, determined by laser diffraction particle size analysis, is greater than 5 ?m.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: September 21, 2021
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Lionel Kiefer, Joel Azevedo
  • Patent number: 10774466
    Abstract: A sizing composition, in particular for insulating products based on mineral wool, in particular of glass or of rock, includes at least one non-reducing saccharide, at least one hydrogenated saccharide, and at least one polycarboxylic organic acid.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: September 15, 2020
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Edouard Obert, Lionel Kiefer, Benjamin Kaplan
  • Publication number: 20200172436
    Abstract: A process for manufacturing insulating products based on mineral wool includes: the application, on mineral wool fibers, of a binder composition containing (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars and a mixture thereof, and (b) at least one crosslinking agent for crosslinking the carbohydrate(s); the evaporation of the solvent phase of the binder composition; and the thermal curing of the non-volatile fraction of the composition. A polysaccharide-free oil-in-water emulsion comprising water, a mineral oil and from 0.5 to 5.0 parts by weight per 100 parts by weight of mineral oil of at least one preferably nonionic surfactant, is added to the binder composition, preferably immediately before the application thereof onto the mineral wool fibers, the mean diameter of the oil droplets of the oil-in-water emulsion, determined by laser diffraction particle size analysis, being greater than 5 ?m.
    Type: Application
    Filed: March 5, 2018
    Publication date: June 4, 2020
    Applicant: SAINT-GOBAIN ISOVER
    Inventors: Joel AZEVEDO, Lionel KIEFER
  • Publication number: 20190211484
    Abstract: A process for manufacturing insulating products based on mineral wool includes applying, on mineral wool fibers, a binding composition containing (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars, and a mixture thereof, and (b) at least one crosslinking agent for crosslinking the carbohydrate(s). The process also includes evaporating the solvent phase of the binding composition and thermal curing the non-volatile fraction of the composition. Further, added to the binding composition, preferably immediately before the application thereof on the mineral wool fibers, is an oil-in-water emulsion including water, a mineral oil, at least one nonionic surfactant and a water-soluble polysaccharide. The mean diameter of the oil droplets of the stable oil-in-water emulsion, determined by laser diffraction particle size analysis, is greater than 5 ?m.
    Type: Application
    Filed: May 3, 2017
    Publication date: July 11, 2019
    Applicant: SAINT-GOBAIN ISOVER
    Inventors: Lionel KIEFER, Joel AZEVEDO
  • Patent number: 9976061
    Abstract: The present invention relates to an aqueous sizing composition for insulating products based on mineral wool, comprising (a) at least one saccharide chosen from reducing sugars and hydrogenated sugars, the proportion of hydrogenated sugars being between 25% and 100% by weight, (b) at least one monomeric polycarboxylic acid or a salt or anhydride of such an acid, (c) more than 2.0% by weight, relative to the sum of the components (a) and (b), of at least one epoxysilane.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: May 22, 2018
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Edouard Obert, Lionel Kiefer
  • Publication number: 20170036955
    Abstract: A sizing composition, in particular for insulating products based on mineral wool, in particular of glass or of rock, includes at least one non-reducing saccharide, at least one hydrogenated saccharide, and at least one polycarboxylic organic acid.
    Type: Application
    Filed: April 14, 2015
    Publication date: February 9, 2017
    Inventors: Edouard OBERT, Lionel KIEFER, Benjamin KAPLAN
  • Publication number: 20170029669
    Abstract: The present invention relates to an aqueous sizing composition for insulating products based on mineral wool, comprising (a) at least one saccharide chosen from reducing sugars and hydrogenated sugars, the proportion of hydrogenated sugars being between 25% and 100% by weight, (b) at least one monomeric polycarboxylic acid or a salt or anhydride of such an acid, (c) more than 2.0% by weight, relative to the sum of the components (a) and (b), of at least one epoxysilane.
    Type: Application
    Filed: March 2, 2015
    Publication date: February 2, 2017
    Applicant: SAINT-GOBAIN ISOVER
    Inventors: Edouard OBERT, Lionel KIEFER