Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

David W Erismann

Mark D Sorlien

John T Rueb

Edward W Deziel

Jack A Dahlstrom

George F Vesley

Nathaniel P Langford

David F Serino

An aqueous fire barrier composition including a latex that includes a polymer, a polyol having 2, 3 or 4 hydroxy groups and a molecular weight of from about 75 to about 1200, and an intumescent agent.

Aqueous intumescent fire barrier composition

A paint stripper composition comprising benzyl alcohol or a derivative thereof and a chlorinated alkane.

Paint stripper containing benzyl alcohol or alkyl-substituted derivative

A brush including a laminate having a handle end portion adapted for manual engagement, and an opposite head end portion; and a plurality of rows of bristles having end portions adhered between adjacent plies in the head end portion of the laminate and projecting outwardly. The brush is formed from pieces of oriented polymeric film, portions of which are adhered to individual plies to be incorporated in the laminate and have portions projecting from the plies separated into bristles before the plies are laminated to form the brush. Lamination is done by driving moisture out of pasteboard layers coated with dried water activatable adhesive by exposure to radio frequency energy which activates the adhesive to form the laminate.

Brush manufacturing method

Brush and its manufacturing method

A pen-like dispenser for applying rust converting liquid including a cap having an outer abrading surface adapted to scrape loose paint and rust from a surface to which the liquid is to be applied; and a liquid dispensing part including an elongate fluid reservoir having resiliently flexible walls, and a dispensing tip assembly. The tip assembly includes a valve member normally closing the tip assembly and having a tip projecting through an outlet passageway through the housing under the influence of a spring. The valve member may be moved to an open position by pressing its tip against a rusted substrate to afford outflow of the liquid, which flow can be controlled and aided by pressing inwardly on the flexible walls of the reservoir.

Pen-like dispenser for applying rust converting liquid

A mechanical plating process utilizes a chemical promotor system for providing heavy, thick metallic coatings on articles, the system comprising a flash promotor for providing a thin, adherent flash coating on the articles and a continuing promotor for incremental addition together with the finely divided mechanical plating metal to form the heavy, thick coatings.

Growing community of inventors

Cottage Grove, MN, United States of America

David W Erismann