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:
May. 11, 1993
Filed:
Oct. 14, 1992
Tetsuyuki Matsubara, Yokohama, JP;
Norifumi Ito, Kamakura, JP;
Mune Iwamoto, Takaishi, JP;
Kazuo Sugazaki, Yokohama, JP;
Toshihiko Ando, Takaishi, JP;
Yasuo Furuta, Hiratsuka, JP;
Kouzo Ichikawa, Takaishi, JP;
Hitoshi Ozawa, Tokyo, JP;
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Abstract
A process for preparing rubber modified high impact resins by dissolving a rubbery polymer in a monomer containing an aromatic vinyl monomer or a mixture of an aromatic vinyl monomer and a vinyl cyanide monomer followed by polymerizing the monomer, the two steps being carried out in at least two polymerization reactors with a particle disperser placed between the first and second reactors. High impact resins having excellent surface properties are obtained with a savings in a power consumption by controlling: