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.:

US 6815500 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Aug. 31, 2001
Applicant:
Inventor:
Assignee:

Atofina, Puteaux, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08L 5/104 ;
U.S. Cl.
CPC ...
C08F / ; C08L 5/104 ;
Abstract

The invention concerns a method for preparing a composition comprising a vinylaromatic polymer enclosing rubber nodules. The invention is characterised in that it includes a step for polymerising at least one vinylaromatic monomer in the presence of rubber, a polymerisation initiator and a stable free radical, said step being such that [F ×(SFR)]: [F ×(AMO)] range from 0.05 to 1, F and F representing the functionality of the stable free radical and the initiator respectively and (SFR) and (AMO) representing the molar quantities of the stable free radical and the initiator respectively, The final composition is particularly resistant to shock and/or shiny.


Find Patent Forward Citations

Boutillier, Jean-Marc. (2004). Shock vinylaromatic polymer by polymerization of a vinylaromatic monomer in the presence of free radical and a polymerization initiator (U.S. Patent No. 6815500). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6815500

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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