An iodine polarizing film, a method for producing the same,...

G - Physics – 02 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G02B 5/30 (2006.01) G02F 1/1335 (2006.01)

Patent

CA 2600420

A polarizing film obtained by stretching a polyvinyl alcohol resin film containing iodine, an iodide, and a crosslinking agent and/or water resistance imparter and then treating the film with a solution which contains either an inorganic acid other than boric acid or a salt thereof and/or an organic acid in an amount of 0.0001-5.0 wt.% and which has a pH of desirably 2-5, preferably 2.2-5. The polarizing film is excellent in wet heat durability and is less apt to decrease in polarizing properties in a wet heat durability test. The polarizing film obtained according to the preferred embodiment is excellent also in dry heat durability.

L'invention concerne un film polarisant obtenu par étirage d'un film de résine d'alcool polyvinylique contenant de l'iode, un iodure et un agent de réticulation et/ou un agent hydrofugeant, puis par traitement du film à l'aide d'une solution contenant un acide inorganique autre que l'acide borique ou bien l'un de ses sels et/ou un acide organique, en une quantité de 0,0001 à 5,0 % en poids, le pH de la solution s'inscrivant de manière souhaitable dans la gamme de 2 à 5, de préférence de 2,2 à 5. Le film polarisant présente une excellente résistance à la chaleur humide et il est moins susceptible de voir ses propriétés polarisantes diminuer lors d'un essai de résistance à la chaleur humide. Le film polarisant obtenu selon le mode de réalisation préféré présente une résistance à la chaleur sèche tout aussi excellente.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

An iodine polarizing film, a method for producing the same,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with An iodine polarizing film, a method for producing the same,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An iodine polarizing film, a method for producing the same,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1778772

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.