E.i. Dupont De Nemours and Company

Samir Costandi Debbas

Ken Stephen Schermacher

Alexander Gregory Swystun

David Alan Cheshire

Richard Thomas Eger

Arthur John Herrman

Paul Thomas Twohig

There is disclosed a bonded, nonwoven sheet of continuous isotactic polypropylene filaments having a nonselvage portion with specified properties rendering the sheet useful as a carpet backing, said properties including an average bond strength, for bonds having a strength greater than 0.1 gram, of at least 0.9 gram and less than the fiber breaking strength, the sheet being characterized by a selvage having an average bond strength which is from about 15-400% greater than the average bond strength of the non-selvage portion of said sheet. There is also disclosed a process for producing said sheet.

Nonwoven polypropylene fabric and process

An unbonded fibrous non-woven sheet comprising four layers of continuous isotactic polypropylene filaments. A shipping bag may be made from the product obtained by thermally bonding said sheet.

Unbonded fibrous non-woven sheet and articles made therefrom

A length of layered nonwoven bonded continuous filament isotactic polypropylene fabric for use in preparating cut pile tufted carpets having a high tufted tongue tear strength, low fuzz buildup on beck dyeing and high optical cover at relatively low basis weight.

Growing community of inventors

Hendersonville, TN, United States of America

Samir Costandi Debbas