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:
Apr. 27, 1982
Filed:
Jul. 30, 1980
Applicant:
Inventors:
Adolf Schmidt, Cologne, DE;
August Bockmann, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524745 ; 526225 ; 524832 ; 524819 ; 524831 ;
Abstract
An aqueous dispersion of a synthetic polymer of average diameter in the range of 50 to 500 nm and especially above 75 nm is disclosed, the aqueous dispersion having a solids content of 5 to 50 parts by weight per 100 parts per weight of total dispersion. The aqueous dispersion is provided by effecting polymerization in the presence of an emulsifier which comprises an alkali metal salt of a polysulfonic acid of an alkane of medium chain length e.g. 8 to 22 carbon atoms.