Laminated base film for photographic film

Details Laminated base film for photographic film Laminated base film for photographic film

G - Physics

03

C

G03C 1/795 (2006.01) G03C 1/81 (2006.01)

Patent

CA 2155508

-38- A laminated base film for a photographic film, (A) which is a laminated film comprising a first layer formed substantially of polyethylene-2,6- naphthalenedicarboxylate and a second layer formed substantially of a polymer composition containing a 2,6-naphthalenedicarboxylate unit (<IMG >) and an ethylene unit (-CH2CH2-) in a total amount of at least 50% by weight, and (B) which has a haze value of 3.0% or less, (C) in which the first layer has a plane orientation coefficient (NS1) of 0.270 or less, and (D) in which the first layer thickness/second layer thickness ratio is in the range of from 3/7 to 7/3. This base film is provided with a proper curling which can be cured by the contraction of a photosensitive emulsion and has various suitable properties as a base film for a photographic film, such as transparency, lubricity, and the like.

L'invention concerne un film support pour pellicule photographique, caractérisé en ce que: (A) il se compose d'une première couche comprenant essentiellement du polyéthylène 2,6-naphthalènedicarboxylate et une seconde couche comprenant essentiellement une composition polymère contenant au moins 50 % en poids, au total, d'unités 2,6-naphthalènedicarboxylate de formule (I) et d'unités éthylène (-CH2CH2-); (B) il présente une valeur de turbidité de 3,0 % maximum; (C) le coefficient (NS1) d'orientation planaire de sa première couche est de 0,270 au maximum; et (D) le rapport de l'épaisseur de sa première couche à l'épaisseur de sa seconde couche est de 3/7-7/3. Le film support présente une ondulation telle qu'elle peut être compensée par le retrait de l'émulsion photosensible, et ses différentes qualités, telles que la transparence et la capacité de glissement, lui permettent d'être utilisé comme film support pour pellicules photographiques.

Affiliated with

Also associated with

Rating

Laminated base film for photographic film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laminated base film for photographic film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminated base film for photographic film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1402539