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:
Nov. 23, 1982
Filed:
Jan. 16, 1981
Applicant:
Inventors:
Walter A Trumbull, Midland, MI (US);
Angela J Williams, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
523351 ; 523353 ; 524160 ; 524161 ; 524568 ; 524210 ;
Abstract
An improved process for preparing extruded films from film-forming polymeric compositions based on vinylidene chloride copolymers and containing one or more inorganic particulate additives and to the films so prepared. The improvement comprises first preparing a preblend of the inorganic particulate additives and an alkali metal salt of an alkylaryl sulfonic acid and, then making an admixture of the preblend and the vinylidene chloride copolymers. The admixture so prepared is then formed into an extruded film by conventional techniques.