Process for stretching an impregnated film of material and the m

Details Process for stretching an impregnated film of material and the m Process for stretching an impregnated film of material and the m

1977-03-22

1979-05-08

Lowe, James B.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

264131, 264134, 264154, 264160, 264DIG47, 428411, 428454, 428500, B32B 326, B32B 2704, B29L 1702, B29D 2700

Patent

active

041537513

ABSTRACT:
There is disclosed a novel process and apparatus for selectively stretching incremental portions of a film of material comprised of a blend of a thermoplastic orientable polymer and an incompatible second phase selected from the group consisting of an incompatible polymer or inorganic material or a polymer matrix having an inorganic filler. The film is introduced into the nip of interdigitating rollers with the concomitant controlling of the velocity of film introduction to substantially the identical velocity of the surface velocity of the rollers to form an opaque, low density, microporous film or sheet of material.

REFERENCES:
patent: 2491646 (1949-12-01), Coleman et al.
patent: 2627088 (1953-02-01), Aller et al.
patent: 2863777 (1958-12-01), Dekker
patent: 3666517 (1972-05-01), Isaacson
patent: 3697367 (1972-10-01), Schwarz
patent: 3849526 (1974-11-01), Muller et al.

Affiliated with

Also associated with

Rating

Process for stretching an impregnated film of material and the m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for stretching an impregnated film of material and the m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for stretching an impregnated film of material and the m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1234342