The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1993
Filed:
May. 08, 1992
Peter Lerner, North Attleboro, MA (US);
Dennis Metrick, Cumberland, RI (US);
International Paper Company, Purchase, NY (US);
Abstract
A cleaning cloth is formed by treating a fibrous material with a composition to which solid particles adhere. The composition includes a tackifier, a pressure-sensitive adhesive and a slip agent. The tackifier is 45-77 wt. %, the pressure-sensitive adhesive is 20-40 wt. % and the slip agent is 3-15 wt. % of the composition. Other ingredients, such an antifoam agent and a pH control, can also be added. The tackifier is an unsaturated, low-molecular-weight resin having low vapor pressure and a molecular weight of<30,000, e.g., polybutene, polyisobutylene, polyhexene or an unsaturated alkyl. The preferred tackifier is polybutene. The pressure-sensitive adhesive is acrylic, styrene butadiene rubber, vinyl acetate or other suitable pressure-sensitive compounds. The slip agent is a high-melting-point wax or a natural fatty acid ester. The preferred slip agent is ammonium stearate. The cleaning cloth is formed by applying a water-based emulsion of a mixture of a tackifier, a pressure-sensitive adhesive and a slip agent to the untreated cloth. The tackifier, adhesive and slip agent form a continuous coating on the fibers of the cloth.