Patents Assigned to Wisespray International Ltd
  • Patent number: 11613656
    Abstract: A method for preventing hardener compounds to be formed from hardener precursors in an aerosol formulation suitable for use in aerosol for making a paint is disclosed.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: March 28, 2023
    Assignee: Wisespray International Ltd
    Inventor: Hendrik Van Der Net
  • Patent number: 11186725
    Abstract: A solvent system is provided, which enables increased amount of exact color tone recipes even when using with currently known dispensing machines having a minimum dispensing limit of 0.01-0.02 ml of a color paste component. The system enables a capability of tinting paints in a tone-accurate manner even into aerosol paint cans of small filling volume. The system provides a capability of radically reducing the amount of various ready-to-use aerosol paints and aerosol base paints stocked by a storekeeper. The disclosure provides an aerosol paint for tinting, as well as a tinted aerosol paint which is suitable for use in a process of mechanized tinting, and by which a good paint coverage on a painted surface is achieved.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 30, 2021
    Assignee: Wisespray International Ltd
    Inventor: Ilkka Parviainen
  • Patent number: 11155720
    Abstract: The invention relates to a water based paint composition to be used in a pressurized and sealed aerosol can and which composition contains A) up to 24% w/w of propellant gas which is dimethyl ether (DME); B) up to 76% w/w of coating material, consisting nonvolatile content in the range of 65-95% w/w and volatile content in the range of 5-35% w/w; —which volatile content contains water up to 0-100% w/w and additives, co-solvents and dispersing agents which comprise altogether of 0-9% w/w of volatile liquids, having 0-10% w/w preferably less than 5% w/w of volatile organic compounds (VOC) provided that the aggregate amount of dimethyl ether (DME) and the volatile organic compounds (VOC) in volatile liquids is such that VOC concentration is below 186 g/l (responding about 24% w/w, calculated as DME).
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 26, 2021
    Assignee: Wisespray International Ltd
    Inventor: Ilkka Parviainen
  • Patent number: 11028274
    Abstract: A method is disclosed for preventing hardener compounds to be formed from hardener precursors in a sealed and pressurized aerosol can. This includes a paint forming dispersion containing after sealing the can a liquefied propellant, epoxy or/and polyurethane resins amount W1, hardener precursor of the epoxy or/and polyurethane resins amount W3, where the epoxy or urethane hardener precursors are selected from a group including an imine, an enamine, a Mannich base, a Schiff's base, an oxazolidine, an aldimine and mixtures thereof, free water of amount W1 in a range of 1-10000 ppm, and brought into the can alongside with the other paint dispersion forming chemicals before sealing the can.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: June 8, 2021
    Assignee: Wisespray International Ltd
    Inventor: Hendrik Van Der Net