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. 22, 2002
Filed:
Jul. 11, 2001
Christian Bonardi, Saint-Genis Laval, FR;
Pierre Hebrard, Lyons, FR;
Richard Peres, Saint-Auban sur Durance, FR;
Kenneth Malone, Philadelphia, PA (US);
Martin Nosowitz, Berwyn, PA (US);
Michael Mendolia, Philadelphia, PA (US);
Peter Callais, Collegeville, PA (US);
Barbara Stainbrook, Collegeville, PA (US);
Jianfeng Lou, Wayne, PA (US);
Other;
Abstract
In the process according to the invention for the aqueous suspension polymerization of vinyl chloride, alone or as a mixture with another vinyl monomer, the polymerization initiator comprises at least one compound chosen from dialkyl peroxydicarbonates, peroxy-tert-alkanoates and diacyl peroxides and use is made, as agent for halting the polymerization, of a mono- or disubstituted hydroxylamine. The resins thus obtained exhibit improved color and heat stability.