Porous biaxially-oriented film comprising high molecular ethylen

Details Porous biaxially-oriented film comprising high molecular ethylen Porous biaxially-oriented film comprising high molecular ethylen

1996-10-28

1999-09-07

Tsang, Cecilia J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283084, 4283157, 4283166, 4283184, 4283199, B32B 326

Patent

active

059485191

ABSTRACT:
A porous biaxially oriented film comprising a copolymer of an ethylene .alpha.-olefin having 4 to 8 carbon atoms, the content of the .alpha.-olefin being in a number of from 1.0 to 7.5 per 1000 carbon atoms and the film retaining the structure which is based upon the microfibrils when it is heat-treated at 160.degree. C. under a constrained state and is then observed at room temperature, and a separator made of this film for batteries. The porous biaxially oriented film exhibits excellent gas permeating property over a practicable temperature range, exhibits excellent mechanical strength and, particularly, tensile strength, and loses gas permeating property when a maximum practicable temperature is exceeded. The film can be favorably used as a separator for batteries.

REFERENCES:
patent: 5385777 (1995-01-01), Higuchi et al.
Saunders, "Organic Polymer Chemistry" pp. 48-62 2nd Edition, Chapman-Hall, 1988. .

Affiliated with

Also associated with

Rating

Porous biaxially-oriented film comprising high molecular ethylen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porous biaxially-oriented film comprising high molecular ethylen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous biaxially-oriented film comprising high molecular ethylen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1802970