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. 05, 1995
Filed:
Feb. 10, 1995
Applicant:
Inventors:
Sheila Tinetti, Midland, MI (US);
Duane B Priddy, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526273 ; 526301 ; 5263076 ; 526312 ; 52631841 ; 52631842 ; 5263185 ; 526347 ; 528481 ; 528503 ;
Abstract
The present invention is a process for preparing a branched polymer from a vinyl aromatic monomer comprising, copolymerizing the vinyl aromatic monomer with a monomer pair, wherein the monomer pair consists of two different monomers containing functionalities which are substantially nonreactive with each other under the conditions of copolymerization, and heating the copolymer produced to a temperature such that the functionalities react with each other to form branches within the polymer.