Multilayer Fluoropolymer Membrane

A polymer film and polymer technology, applied in lamination, layered products, lamination devices, etc., can solve the problems that fluoropolymer films do not provide UV protection and are difficult to adhere

Active Publication Date: 2020-09-15
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluoropolymer films do not provide UV protection and tend to be difficult to adhere to other substrates

Method used

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  • Multilayer Fluoropolymer Membrane
  • Multilayer Fluoropolymer Membrane
  • Multilayer Fluoropolymer Membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] Multilayer polymer films were prepared by polymethyl methacrylate (PMMA) (commercially available from Arkema, Bristol, PA, under the trade designation "VO44") using a 3-layer multi-manifold die. , Bristol, PA)) as the third layer, fluoropolymer (available under the trade designation "FLUOROPLASTIC GRANULES THV221GZ" from 3M Dyneon, Oakdale, MN) as the first layer, and A fluoropolymer (available from 3M Dyneon, Oakdale, MN under the trade designation "3M DYNEON FLUOROPLASTIC PVDF 11010 / 0000") was coextruded as the second layer. A third layer of PMMA ("VO44") was fed at 1.8 kg / hr (4 lb / hr) into the bottom manifold of the multi-manifold die using a 25 mm twin screw extruder. A second layer of fluoropolymer ("3M DYNEON FLUOROPLASTIC GRANULES PVDF 11010 / 0000") was fed at 1.8 kg / hr (4 lb / hr) into the center manifold of the multi-manifold die using a 31 mm single screw extruder . A first layer of fluoropolymer ("FLUOROPLASTIC GRANULES THV221GZ") was fed at 1.8 kg / hr (4 lb / hr...

Embodiment 2

[0143] Multilayer polymer films were prepared by applying a 3-layer multi-manifold die with a fluoropolymer first layer (“FLUOROPLASTIC GRANULES THV221GZ”) and a fluoropolymer (“3M DYNEON FLUOROPLASTIC GRANULES PVDF 11010 / 0000”) as The second layer is coextruded. Using PMMA butyl acrylate copolymer (purchased from Kuraray Ltd., Osaka, Japan under the trade name "LA4285") and PMMA UVA masterbatch (purchased from South Korea under the trade name "TA11-10MB03") A 50:50 blend of a 50:50 blend of Sukano Polymers Corporation, Duncan, SC) was used to form the third layer, and was extruded at 1.8 kg / hr (4 lb / hr) with a 25 mm twin-screw extruder. Feed into the bottom manifold of the multi-manifold die. A second layer of fluoropolymer ("3M DYNEON FLUOROPLASTIC GRANULES PVDF 11010 / 0000") was fed at 1.8 kg / hr (4 lb / hr) into the center manifold of the multi-manifold die using a 31 mm single screw extruder . A first layer of fluoropolymer ("FLUOROPLASTIC GRANULES THV221GZ") was fed at 1....

Embodiment 3

[0146] A multilayer polymer film was prepared by adding a first layer of fluoropolymer (commercially available from 3M Dyneon under the tradename "FLUOROPLASTIC GRANULES THV610GZ" under the trade name "FLUOROPLASTIC GRANULES THV610GZ") and fluoropolymer ("3M DYNEON FLUOROPLASTIC GRANULES PVDF 11010 / 0000") second layer coextruded. A 50:50 blend of PMMA butyl acrylate copolymer ("LA4285") and PMMA UVA masterbatch ("TA11-10MB03") was used to form the third layer, and a 25 mm twin-screw extruder was used at 1.8 kg / hour ( 4 lbs / hr) into the bottom manifold of the multi-manifold die. A second layer of fluoropolymer ("3M DYNEON FLUOROPLASTIC GRANULES PVDF 11010 / 0000") was fed at 1.8 kg / hr (4 lb / hr) into the center manifold of the multi-manifold die using a 31 mm single screw extruder . A top layer of fluoropolymer ("FLUOROPLASTIC GRANULES THV610GZ") was fed at 1.8 kg / hr (4 lb / hr) into the top manifold of the multi-manifold die using a 31 mm single screw extruder. The multilayer po...

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Abstract

The present invention provides a multilayer fluoropolymer film comprising, in sequence: a first layer comprising a first polymer based on the total amount of the first polymer In mole percent, the first polymer comprises at least 35 mole percent tetrafluoroethylene comonomer, at least 15 mole percent vinylidene fluoride comonomer, and at least 5 mole percent hexafluoropropylene comonomer; the second a layer comprising a second polymer comprising at least 50 mole percent vinylidene fluoride comonomer based on the total mole percent of the second polymer; and a third layer , the third layer comprising a third polymer comprising at least 50 mole percent methyl methacrylate comonomer based on the total mole percent of the third polymer. The multilayer fluoropolymer films are useful, for example, in multilayer film applications (eg, traffic sign protection, commercial graphics protection, paint protection, windows, windshields, building exteriors, and photovoltaic cells).

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application 62 / 316965, filed April 1, 2016, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0003] Fluoropolymer films are intrinsically ultraviolet (UV) stable. Such films also tend to have good chemical, stain and graffiti resistance. However, fluoropolymer films do not provide UV protection and tend to be difficult to adhere to other substrates. [0004] Films are commonly used to protect the surfaces of articles such as reflective traffic signs, commercial graphics, automotive paint finishes, and flexible photovoltaic cells. It is generally desirable for films to provide UV protection and graffiti resistance for reflective traffic signs. Films are generally expected to provide UV protection, stain resistance, and graffiti resistance for commercial graphics. Films are generally desired to provide autom...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B32B27/08B32B27/36B32B27/40B32B27/32B32B27/18B32B27/30
CPCB32B27/18B32B27/304B32B27/308B32B27/32B32B27/322B32B27/365B32B27/40B32B2307/412B32B2307/71B32B2307/714B32B2405/00B32B2457/12B32B2551/00B32B2590/00B32B27/30B32B27/36B32B2250/05B32B7/02B32B27/20B32B27/285B32B3/30B32B2250/03B32B2250/04B32B2250/246B32B2264/102B32B2307/406B32B2307/418B32B2307/732B32B2307/748B32B2307/756B32B2419/00B32B2571/00B32B2605/006B32B27/08B32B2250/24B32B7/12B32B37/153
Inventor蒂莫西·J·赫布林克约瑟夫·A·里奇雅各布·D·扬
Owner3M INNOVATIVE PROPERTIES CO