Nonwoven webs and method of making same

Details Nonwoven webs and method of making same Nonwoven webs and method of making same

1993-06-29

1995-08-22

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156167, 156176, 156179, 428284, 428903, B32B 2700

Patent

active

054438985

ABSTRACT:
A process for producing nonwoven webs having improved strength properties at high throughputs is provided. In the process, a non-uniform blend of a polyolefin and a prodegradant is formed. The non-uniform blend is then rapidly heated to cause the substantially immediate thermal degradation of the prodegradant, thus providing a non-uniformly degraded polyolefin having a fraction substantially reduced in molecular weight and a fraction substantially unaffected in molecular weight as compared to the starting polyolefin.

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