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:
Dec. 10, 2019
Filed:
May. 03, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Pingfan Wu, Woodbury, MN (US);
Lianzhou Chen, Woodbury, MN (US);
Fredrick W. Vance, Westfield, IN (US);
Edward E. Cole, Woodbury, MN (US);
Charles W. Hedley, Danville, IN (US);
Gregory L. Simon, Bloomington, IN (US);
Michael C. Martin, Hudson, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A curable composition is provided comprising a curable rubber comprising: a) 80.0-99.9 wt % of a chloroprene resin; b) 0.06-13 wt % of trimethyl thiourea; and c) 0.06-13 wt % of a benzothiazolesulfenamide, such as N-cyclohexyl-2-benzothiazoles-ulfenamide. The present disclosure additionally provides cured compositions comprising a rubber comprising a crosslinked chloroprene resin and a fire retardant particle system comprising: d) 5-95 wt % particulate magnesium hydroxide (Mg(OH)); and e) 5-95 wt % particulate aluminum trihydrate (Al(OH)). In some embodiments the particulate aluminum trihydrate (Al(OH)) has a mean particle size of greater than 30 microns and less than 400 microns, and more typically a mean particle size of greater than 82 microns. The present disclosure additionally provides sound barrier films comprising the cured compositions according to the present disclosure, in particular fire resistant sound barrier films.