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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 6756447 B1

PDFFull Text
Date of Patent:
Jun. 29, 2004

Filed:

Mar. 13, 2002

Flame-retardant polymer composition comprising polypropylene and an ethylene copolymer having high structural uniformity

Applicant:
Inventors:

Luca Castellani, Corsico, IT;

Eduardo Grizante Redondo, Perdizes, BR;

Antonio Zaopo, Milan, IT;

Enrico Albizzati, Lesa, IT;

Assignee:

Pierelli Cavi E Sistemi.S.p.A., Milan, IT;

Attorney:

Finnegan, Henderson, Farabow, Garrett, & Dunner, L.L.P.

Primary Examiner:

Kelechi C Egwim

Int. Cl.
CPC ...
H01B 3/00 ; H01B 7/00 ; C08L 2/316 ; C08L 2/312 ; C08L 2/308 ;
U.S. Cl.
CPC ...
H01B 3/00 ; H01B 7/00 ; C08L 2/316 ; C08L 2/312 ; C08L 2/308 ;
Abstract

A flame-retardant polymer composition includes: (a) a crystalline propylene homopolymer or copolymer; (b) a copolymer of ethylene with at least one alpha-olefin having from 4 to 12 carbon atoms, and optionally with a diene; and (c) a flame-retardant inorganic filler. Copolymer (b) has a density of between 0.90 and 0.86 g/cm and a Composition Distribution Index, defined as the weight percentage of copolymer molecules having an alpha-olefin content within 50% of the average total molar content of alpha-olefin, of greater than 45%.

Find Patent Forward Citations

Castellani, Luca. (2004). Flame-retardant polymer composition comprising polypropylene and an ethylene copolymer having high structural uniformity (U.S. Patent No. 6756447). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6756447

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