Process of making a multiple domain fiber having an inter-domain

Details Process of making a multiple domain fiber having an inter-domain Process of making a multiple domain fiber having an inter-domain

1998-11-20

2000-01-25

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

26417214, 26417215, 26417218, 2642108, D01D 512, D01D 532, D01D 534, D01F 806, D01F 812

Patent

active

06017479&

ABSTRACT:
Multicomponent fibers and methods and apparatus for producing the same are provided such that an inter-domain boundary layer is interposed between distinct domains formed of incompatible polymers so as to minimize (if not eliminate entirely) separation of the domains at their interfacial boundary. The inter-domain boundary layer is formed of a heterogeneous mixture of the polymers forming the respective adjacent domains between which the boundary layer is interposed. The inter-boundary layer will most preferably include rivulets or fingers of each polymer forming the adjacent domains which interlock with one another in a randomly tortuous manner. These different polymer rivulets thereby effectively increase the surface area and mechanical interlocking at the interfacial boundary between the fiber domains thereby increasing the adhesion therebetween.

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