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. 06, 1976
Filed:
Apr. 26, 1974
William O Dalton, Hampden, MA (US);
Monsanto Company, St. Louis, MO (US);
Abstract
This invention relates to a continuous process for the production of ABS type polyblends comprising the polymeriztion of a monomer composition comprising monoalkenyl aromatic and alkenyl nitrile monomers in a single reaction zone forming a matrix copolymer dissolved in said monomers as a liquid phase; removing said liquid phase from said reaction zone and dispersing a first and second grafted diene rubber in said liquid phase followed by separating said matrix copolymer and said grafted diene rubbers from said liquid phase forming an ABS polyblend having a bimodal rubber particle size distribution and a matrix copolymer having a uniform monomer composition and molecular weight.