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, 1976
Filed:
Jan. 07, 1974
Applicant:
Inventors:
Gerhard G Ramlow, Ludwigshafen, DT;
Louis C Pizzini, Trenton, MI (US);
John T Patton, Jr, Wyandotte, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 342 ; 260 / ; 260 / ; 2608 / ; 2608 / ; 260861 ; 260865 ; 260869 ; 260870 ; 260875 ; 260881 ; 260884 ; 260886 ;
Abstract
Graft copolymer dispersions of improved viscosity and superior particle size distribution are prepared by the in situ polymerization of vinyl monomers in unsaturation-containing polyols in the presence of a free-radical catalyst and certain chain transferring agents at temperatures below 100.degree. C. The dispersions are low viscous liquids which may be advantageously employed in the preparation of polyurethanes.