Actinic radiation-curable resin composition for shaping, shaping sheet, and shaped product

A technology of active energy rays and curable resins, applied in the direction of synthetic resin layered products, chemical instruments and methods, layered products, etc., can solve the difficulty of mixing energy ray polymerizable compound chain polymers, large-sized sheet forming Difficulty, insufficient formability, etc., to achieve the effects of less foaming, improved formability, and good mechanical properties

Inactive Publication Date: 2007-06-27
DIC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these manufacturing methods, there are problems in that molding of large-sized sheets is difficult, a large number of dies are required for mass production, etc.
However, in the preferred energy ray-curable composition of Patent Document 2, it is difficult to mix (A) the energy ray-polymerizable compound and (B) the chain polymer, and the formability is insufficient.
In addition, there are the following problems: the solvent solubility is also poor; it is necessary to use a strong solubility solvent that has a strong impact on the human body and the environment, such as halogenated hydrocarbons such as dichloromethane, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In the presence of 1.1 parts of dibutyltin oxide, 812 parts of propylene oxide adducts of bisphenol A [Nippon Emulsifier Co., Ltd. BAP2 Gricol] and 272 parts of fumaric acid were reacted at 215°C for 8 A polyester resin (R1) having an unsaturated double bond in the molecule, a number average molecular weight (Mn) of 2300, and a softening point of 100° C. was obtained.

[0063] Wherein, the number-average molecular weight (Mn) of polyester resin is the column (TSKgel SuperHZ4000, SuperHZ3000, SuperHZ2000, SuperHZ1000, each 1 root), using tetrahydrofuran as a solvent, and measuring the obtained number average molecular weight in terms of polystyrene under the condition of a flow rate of 0.350 ml / min. (the same applies hereinafter).

[0064] Next, in a separable flask, 65 parts of the obtained polyester resin (R1), 28 parts of urethane acrylate oligomer [UNIDIC V-4260 manufactured by Dainippon Ink Chemical Co., Ltd., number average molecular weight 1700, average 3 unsatur...

Embodiment 2

[0069] In a separable flask, add 37 parts of polyester resin (R1) obtained in Example 1, 56 parts of epoxy acrylate oligomer [UNIDIC V-5500 manufactured by Dainippon Ink Chemical Industry Co., Ltd., number average molecular weight 520 , the average number of unsaturated groups is 2], 3 parts of KAYARAD DPHA and 4 parts of IRGACURE 651, heated and stirred at 100°C, degassed under reduced pressure to obtain a uniform active energy ray curable resin composition for molding. Complex viscosity (η * ) becomes 1×10 6 The temperature (T6) at dPa·s is 32°C, and the complex viscosity (η * ) becomes 1×10 5 The complex viscosity (η * ) becomes 1×10 4 The temperature (T4) at dPa·s was 60°C, and the temperature difference (T4-T6) was 28°C.

[0070] Heat the obtained active energy ray-curable resin composition for molding, polyethylene terephthalate film A4300, and applicator to 95°C in advance, and use the applicator on a hot plate controlled at 95°C. Coating the active energy ray-cur...

Embodiment 3

[0074] In a separable flask, add 74 parts of the polyester resin (R1) obtained in Example 1, 19 parts of Yunedik V-4260, 3 parts of KAYARAD DPHA, 4 parts of IRGACURE651 and 4 parts of polyether-modified polydimethylsiloxane [SILWET FZ-2164 manufactured by Toray Dow Corning Silicon Co., Ltd.] was heated and stirred at 110° C., and degassed under reduced pressure to obtain a uniform active energy ray-curable resin composition for molding. Complex viscosity (η * ) becomes 1×10 6 The temperature (T6) at dPa·s is 42°C, and the complex viscosity (η * ) becomes 1×10 5 The complex viscosity (η * ) becomes 1×10 4 The temperature (T4) at dPa·s was 74°C, and the temperature difference (T4-T6) was 32°C.

[0075] Heat the obtained active energy ray-curable resin composition for molding, polyethylene terephthalate film A4300, and applicator to 95°C in advance, and use the applicator on a hot plate controlled at 95°C. Coating the active energy ray-curable resin composition for molding ...

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Abstract

An actinic radiation-curable resin composition for shaping, comprising a polyester resin (R) having a number average molecular weight (Mn) of not less than 1,000 and not more than 8,000 and a polymerizable vinyl compound (V). In the composition from which a solvent has been removed, the temperature (T4) at which the complex viscosity coefficient (eta*) at a frequency of 1 Hz is 1 104 dPas is 30 DEG C or above, and the temperature (T6) at which the complex viscosity coefficient (eta*) at a frequency of 1 Hz is 1 106 dPas is 100 DEG C or below.

Description

technical field [0001] The present invention relates to an active energy ray-curable resin composition for molding, a resin sheet for molding, and a molded article formed from the sheet for molding. The active energy ray-curable resin composition can be suitably used for optical lenses, projection screens, In the manufacture of embossed sheets and other shaped products for building decoration materials. Background technique [0002] Production methods such as injection molding, extrusion molding, and press molding are known as methods for manufacturing optical sheets used in optical lenses, projection screens, and the like. However, these manufacturing methods have problems in that it is difficult to form a large-sized sheet, a large number of dies are required for mass production, and the like. [0003] For this reason, there is known a method of continuously forming lenses on one side or both sides of a sheet-shaped base material through a cylindrical lens mold or the lik...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/01B32B27/36
CPCC08F283/01C08G63/52C08L67/00B32B27/36
Inventor 德田博之小林伸生本村雅俊寺田浩之正村健治今野英寿
Owner DIC CORPORATION
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