Narrow composition distribution polyvinylidene fluoride RECLT films, processes, articles of manufacture and compositions
First Claim
1. An RECLT film comprising a conductive narrow composition distribution polyvinylidene fluoride copolymer film combined with an electrolyte and operatively associated with an RECLT material,wherein said narrow composition distribution polyvinylidene fluoride copolymer film has the characteristics of a polyvinylidene fluoride copolymer having up to 8 weight percent nominal hexafluoropropylene content having weight percent extractables within plus or minus 1.5% of the percent by weight extractables calculated by an equation selected from the group consisting of:
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Accused Products
Abstract
The disclosure relates to a reversible, electrically controllable light transmission (RECLT) film, article of manufacture composition, process and product produced by the process, comprising a conductive narrow composition distribution polyvinylidene fluoride copolymer in combination with an electrolyte and an RECLT material. The narrow composition distribution polyvinylidene fluoride copolymer has low solubility, high thermal stability and strength, and very high optical clarity. The polyvinylidene fluoride copolymer comprises a nonporous or porous copolymer of vinylidene fluoride preferably with either hexafluoropropylene or tetrafluoroethylene or chlorotrifluoroethylene, or vinyl acetate, or combinations thereof. The RECLT material includes organic or inorganic compounds known in the art. Typical RECLT materials include electrochromic materials, reversible metal electrodeposition materials, liquid crystal materials and dispersed particle materials.
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Citations
73 Claims
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1. An RECLT film comprising a conductive narrow composition distribution polyvinylidene fluoride copolymer film combined with an electrolyte and operatively associated with an RECLT material,
wherein said narrow composition distribution polyvinylidene fluoride copolymer film has the characteristics of a polyvinylidene fluoride copolymer having up to 8 weight percent nominal hexafluoropropylene content having weight percent extractables within plus or minus 1.5% of the percent by weight extractables calculated by an equation selected from the group consisting of:
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18. An RECLT article of manufacture comprising a conductive narrow composition distribution polyvinylidene fluoride copolymer film combined with an electrolyte and operatively associated with an RECLT material, a substantially transparent electrode, and a counter electrode
wherein said narrow composition distribution polyvinylidene fluoride copolymer film has the characteristics of a polyvinylidene fluoride copolymer having up to 8 weight percent nominal hexafluoropropylene content having weight percent extractables within plus or minus 1.5% of the percent by weight extractables calculated by an equation selected from the group consisting of:
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35. An RECLT composition of matter comprising a conductive narrow composition distribution polyvinylidene fluoride copolymer combined with an RECLT material and an electrolyte
wherein said narrow composition distribution polyvinylidene fluoride copolymer film has the characteristics of a polyvinylidene fluoride copolymer having up to 8 weight percent nominal hexafluoropropylene content having weight percent extractables within plus or minus 1.5% of the percent by weight extractables calculated by an equation selected from the group consisting of:
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52. A process of manufacturing an RECLT composition of matter comprising combining a conductive narrow composition distribution polyvinylidene fluoride copolymer with an electrolyte and an RECLT material
wherein said narrow composition distribution polyvinylidene fluoride copolymer film has the characteristics of a polyvinylidene fluoride copolymer having up to 8 weight percent nominal hexafluoropropylene content having weight percent extractables within plus or minus 1.5% of the percent by weight extractables calculated by an equation selected from the group consisting of:
Specification