Patents by Inventor Maciej P. Pietras

Maciej P. Pietras 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: 11905429
    Abstract: Coatable compositions for formation of ink-receptive layers, which may be aqueous suspensions, comprise a mixture of: a) 8.0-75 wt % (based on the total weight of a), b), c), and d)) of colloidal silica particles having an average particle size of 2.0-150 nm; b) 10-75 wt % of one or more polyester polymers; c) 10-75 wt % of one or more polymers selected from the group consisting of polyurethane polymers and (meth)acrylate polymers; and d) 0-10 wt % of one or more crosslinkers. Ink-receptive layers, which may exhibit high gloss and high ink anchoring are also provided, as are constructions comprising such layers. Porous solids are also provided, comprising: a) 8.0-75 wt % of colloidal silica particles having an average particle size of 2.0-150 nm; and b) one or more water dispersible polymers.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 20, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Rachna Khurana, Maciej P. Pietras, Benjamin R. Coonce, Naiyong Jing
  • Publication number: 20210214575
    Abstract: Coatable compositions for formation of ink-receptive layers, which may be aqueous suspensions, comprise a mixture of: a) colloidal silica particles; b) polyester polymers; c) polymers selected from the group consisting of polyurethane polymers and (meth)acrylate polymers; and d) crosslinkers. Ink-receptive layers, which may exhibit high gloss and high ink anchoring are also provided, as are constructions comprising such layers.
    Type: Application
    Filed: June 27, 2019
    Publication date: July 15, 2021
    Inventors: Dean M. Moren, Maciej P. Pietras, Rachna Khurana, Benjamin R. Coonce
  • Publication number: 20200283638
    Abstract: Coatable compositions for formation of ink-receptive layers, which may be aqueous suspensions, comprise a mixture of: a) 8.0-75 wt % (based on the total weight of a), b), c), and d)) of colloidal silica particles having an average particle size of 2.0-150 nm; b) 10-75 wt % of one or more polyester polymers; c) 10-75 wt % of one or more polymers selected from the group consisting of polyurethane polymers and (meth)acrylate polymers; and d) 0-10 wt % of one or more crosslinkers. Ink-receptive layers, which may exhibit high gloss and high ink anchoring are also provided, as are constructions comprising such layers. Porous solids are also provided, comprising: a) 8.0-75 wt % of colloidal silica particles having an average particle size of 2.0-150 nm; and b) one or more water dispersible polymers.
    Type: Application
    Filed: November 16, 2018
    Publication date: September 10, 2020
    Inventors: Rachna Khurana, Maciej P. Pietras, Benjamin R. Coonce, Naiyong Jing