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.:
Date of Patent:
Feb. 01, 2000
Filed:
Feb. 11, 1998
Haruo Watanabe, Tokyo, JP;
Affinity Co., Ltd., Tokyo, JP;
Abstract
A laminated body comprising an aqueous solution, in which molecules dissolved in water aggregate upon increasing temperature to demonstrate cloudy light-scattering resulting in decrease in light transmittance, sealed between two substrates which are at least partially transparent to allow direct visibility of said aqueous solution, wherein said aqueous solution comprises 0.5 to 45 parts by weight of an amphipathic substance which exhibits a clouding point, is an oil at room temperature and dissolves uniformly in water at room temperature, dissolved in 100 parts by weight of a solution of 0.5 to 40 parts by weight of an ionic water-soluble polymer or a vinyl-based non-ionic water-soluble polymer exhibiting no clouding point at a temperature of not higher than about 45.degree. C. in 100 parts by weight of water, and said aqueous solution undergoes a temperature-dependent reversible sol-emulsion phase transition, as well as a window employing it.