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:
Oct. 26, 1976
Filed:
Jan. 09, 1975
James R Bethea, Denham Springs, LA (US);
Robert G Bryan, Jr, Baton Rouge, LA (US);
S Douglas Stain, Jr, Baton Rouge, LA (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Chlorinated olefin polymer compositions having unexpectedly high tensile impact strength values and resistance to ignition and burning are composed essentially of an admixture of (1) a normally solid, linear olefin polymer having a bulk density of from about 22 to about 36 pounds/cubic foot with the individual particles thereof being predominantly in the range of at least 300 to about 800 microns in size, the olefin polymer having from about 1 to about 20 percent by weight of chemically combined chlorine substantially heterogeneously distributed along the outer surfaces of the polymer particles; such chlorine being introduced in the substantial absence of oxygen and at temperatures not substantially exceeding about 90.degree. C. while the olefin polymer particles are maintained in a fluidized bed state; and (2) from about 0.1 to about 10 percent based on polymer weight of antimony trioxide, and, optionally, up to about 5 percent based on polymer weight of certain bromine containing compounds.