IDiyas

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10328454 B1

PDFFull Text
Date of Patent:
Jun. 25, 2019

Filed:

Nov. 19, 2015

Method for producing optical film

Applicant:

Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;

Inventors:

Kenji Hayashi, Tokyo, JP;

Yoshiro Toda, Tokyo, JP;

Takato Chiba, Tokyo, JP;

Assignee:

KONICA MINOLTA, INC., Tokyo, JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Michael N Orlando

Assistant Examiner:

Joshel Rivera

Int. Cl.
CPC ...
B32B 41/00 (2006.01); B05D 1/02 (2006.01); B05D 1/34 (2006.01); G02B 5/26 (2006.01); G02B 5/28 (2006.01); B05D 1/28 (2006.01); B05D 1/40 (2006.01); B32B 23/08 (2006.01); B32B 23/22 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); G02B 1/10 (2015.01); G02B 5/08 (2006.01); G02B 1/111 (2015.01);
U.S. Cl.
CPC ...
B05D 1/02 (2013.01); B05D 1/28 (2013.01); B05D 1/34 (2013.01); B05D 1/40 (2013.01); B32B 23/08 (2013.01); B32B 23/22 (2013.01); B32B 27/18 (2013.01); B32B 27/30 (2013.01); G02B 1/10 (2013.01); G02B 5/085 (2013.01); G02B 5/26 (2013.01); G02B 5/28 (2013.01); G02B 1/111 (2013.01);
Abstract

Provided is a method for producing an optical film using simultaneous multilayer coating application, the method being capable of reducing the incidence of coating failure in an optical film. The present invention relates to a method for producing an optical film having at least two or more optical functional layers formed on a base material, the method including: a loss modulus checking step of checking the loss moduli of coating liquids capable of forming the respective optical functional layers by measuring dynamic viscoelasticity; and a coating application step of performing simultaneous multilayer coating application of the coating liquids capable of forming the respective optical functional layers on the base material.

Find Patent Forward Citations

Loading…