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Polyvinylidene fluoride films and laminates thereof

A technology of vinylidene fluoride and laminated products, applied in the field of polyvinylidene 1, can solve the problems of lack of high temperature resistance and chemical resistance

Inactive Publication Date: 2012-08-22
AVERY DENNISON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most commercially available PVDF lacks the high temperature and chemical resistance to withstand the FRP production process

Method used

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  • Polyvinylidene fluoride films and laminates thereof
  • Polyvinylidene fluoride films and laminates thereof
  • Polyvinylidene fluoride films and laminates thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] PVDG layers were formulated from the following ingredients:

[0038] Element

Quantity (Wt%) Exxate700 solvent 38.90 Butyrolactone solvent 9.72 Elvacite4026 MMA copolymer 4.50 Elvacite4402 Hydroxy Functional Acrylic Resin 13.50 Cyasorb UV2126 Benzophenone UV absorber 0.50 Tinuvin928 Hydroxyphenyl benzotriazole UV stabilizer 1.74 Kynar2821LV * PVDF / HFP copolymer 27.00 Cymel 303 Hexamethoxymethylmelamine crosslinker 3.38 Byk451

blocked acid catalyst

0.77

[0039] * Air milling to an average particle size of <8 μm and a maximum particle size of <30 μm.

[0040] Elvacite 4026, Elvacite 4402, Cyasorb UV2126 and Tinuvin 928 were first dissolved in Exxate 700 and butyrolactone solvent at 130°F and allowed to cool below 85°F. PVDF was then dispersed in the resin solution using a high speed mixer. The PVDF dispersion temperature was kept below 100°F to avoid gelling of the disper...

Embodiment 2

[0043] The PVDF layer is formulated from the following ingredients:

[0044] Element

Quantity (Wt%) Exxate 700 solvent 38.37 Butyrolactone solvent 9.59 Elvacite 4402 Hydroxy Functional Acrylic Resin 17.75 Cyasorb UV2126 Benzophenone UV absorber 0.49 Tinuvin 928 Hydroxyphenyl benzotriazole UV stabilizer 1.72 Kynar2821LV PVDF / HFP copolymer 26.63 Cymel 303 Hexamethoxymethylmelamine crosslinker 4.44 Byk 451 blocked acid catalyst 1.02

[0045] Elvacite 4026, Cyasorb UV2126 and Tinuvin 928 were first dissolved in Exxate 700 and butyrolactone solvent at 130°F and allowed to cool below 85°F. PVDF was then dispersed in the resin solution using a high speed mixer. The PVDF dispersion temperature was kept below 100°F to avoid gelling of the dispersion. Cymel 303 and Byk 451 were then added to the dispersion. The dispersion was thinned, if necessary, with a 4:1 mixture of Exxate 700 and butyrolactone sol...

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Abstract

A fluoropolymer film useful in a laminate construction comprising a fiberglass reinforced substrate and a high temperature resistant film comprising a fluoropolymer layer formed from a composition comprising (a) a polyvinylidene fluoride polymer; (b) a hydroxyl functional acrylic polymer; and (c) a crosslinking agent is provided.

Description

[0001] This application claims the benefit of US Provisional Application No. 60 / 806,147, filed June 29, 2006, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates generally to polyvinylidene fluoride films, and more particularly to polyvinylidene fluoride films having chemical resistance and heat resistance. The film is useful in laminate constructions as a protective weather resistant film. The membrane may be laminated to a fiberglass-reinforced polyester (FRP) board. Background technique [0003] Fiberglass reinforced polyester panels (FRP) are used in a variety of applications including commercial and traffic signage, building elements and structures - which include prefabricated modular building (modularbuilding), roof and wall systems, skylights, solar thermal solar collectors, farm buildings and garage doors, and industrial structures – including greenhouses and factories. To improve the life of the panels...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L27/16
CPCC08L2205/035C08J2327/16C08L27/16C08L33/12C08L33/066C08L2205/03C08J5/18C08L61/28C08L2205/02Y10T428/24802Y10T428/3154C08L2666/02B32B27/28
Inventor K·L·特罗
Owner AVERY DENNISON CORP
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