Patents Assigned to Proflute AB
  • Method for the production of a dehumidifying element
    Patent number: 6630206
    Abstract: The present invention relates to a method of impregnating paper with a suspension of a molecular sieve in waterglass, such as soda waterglass or potassium waterglass, wherein the impregnated paper can be used as a dehumidifying element, and wherein the method comprises the steps of a) providing a piece of paper, such as facing paper and/or fluted paper; b) immersing the paper into a highly concentrated waterglass solution in which a molecular sieve has been suspended, at a temperature in the range of 45-95° C., wherein said suspension of highly concentrated waterglass/molecular sieve has a viscosity of at least 350 mPa.s at a temperature of 45° C.; and c) cooling the immersed paper with air at a temperature of at most 35° C. and preferably at most 25° C.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 7, 2003
    Assignee: Proflute AB
    Inventor: Per-Johan Aronson
  • Moisture exchanging element and a method of its manufacture
    Patent number: 6440489
    Abstract: The invention relates to a bacteriostatic dehumidifying element that includes additives which inhibit the growth of microorganisms. The dehumidifying element is produced by a method that comprises the steps of: a) providing a piece of paper, such as facing paper and/or fluted paper; b) immersing the paper in a highly concentrated waterglass solution at a temperature c) in the range of 45-95° C., where said highly concentrated waterglass solution has a viscosity of at least 350 mPa·s at a temperature of 45° C.; d) cooling the immersed paper with air at a temperature of at highest 35° C., aid preferably at highest 25° C.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: August 27, 2002
    Assignee: Proflute AB
    Inventor: Per-Johan Aronsson
  • Novel method for the production of a dehumidifying element
    Publication number: 20010024692
    Abstract: The present invention relates to a method of impregnating paper with a suspension of a molecular sieve in waterglass, such as soda waterglass or potassium waterglass, wherein the impregnated paper can be used as a dehumidifying element, and wherein the method comprises the steps of
    Type: Application
    Filed: February 28, 2001
    Publication date: September 27, 2001
    Applicant: Proflute AB
    Inventor: Per-Johan Aronson
  • Method of producing a dehumidifying element
    Patent number: 6265030
    Abstract: A method of impregnating paper with waterglass, such as soda waterglass or potassium silicate, the impregnated paper being usable as a dehumidifying element, wherein the method includes the steps of a) providing a sheet of paper such as facing paper and/or corrugated paper; b) immersing the paper into a highly concentrated waterglass solution at a temperature within the range of 45-95° C., with the highly concentrated waterglass solution having a viscosity of at least 350 mPa.s at a temperature of 45° C.; and c) cooling the immersed paper with air at a temperature no greater than 35° C. and preferably no greater than 25° C.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 24, 2001
    Assignee: Proflute AB
    Inventor: Per-Johan Aronson