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:
Aug. 01, 1989
Filed:
May. 21, 1987
Applicant:
Inventors:
Bernard H Meyer, Newtown Square, PA (US);
Joseph C Kinslow, West Chester, PA (US);
Paul E Arch, Wayne, PA (US);
D Harper Meek, Newtown Square, PA (US);
Assignee:
Arco Chemical Technology, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526190 ; 526272 ; 5263292 ; 526340 ; 526342 ; 526346 ; 526909 ; 526910 ; 525248 ; 525298 ; 525310 ; 525313 ; 525316 ; 524178 ;
Abstract
In the suspension polymerization of styrene monomers in water using suitable suspension stabilizers, the only modifier needed has been found to be organotin compounds in amounts from 10 to 1000 ppm based on monomer. The product beads have a narrow bead size distribution.