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:
Jan. 29, 1980
Filed:
Nov. 22, 1977
Applicant:
Inventor:
John Ugelstad, Trondheim, NO;
Assignee:
SINTEF (Selskapet for industriell og teknisk forskning ved NTH), Trondheim, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ;
Abstract
Process for producing finely divided aqueous emulsions from materials of ited water solubility. These materials are diffused into pre-formed particles dispersed in water which are formed from vinyl compounds by emulsion polymerization under conditions which cause the pre-formed seed latex to include in the particles 10-100 percent oligomers having a molecular weght of 200-10,000. These seed particles take up 20-500 times their own volume of the material of limited water solubility.