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Xanthogen compound dispersion, conjugated-diene-based polymer latex composition, and film molded body

A technology of conjugated diene and xanthogen, which is applied in the fields of xanthogen compound dispersion, conjugated diene polymer latex composition and film forming body, can solve problems such as delayed-type allergy and the like, and achieves inhibition of delayed-type allergy. Allergy, immediate allergy suppression, pinhole suppression effect

Active Publication Date: 2021-04-13
ZEON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the technology of this patent document 1, although the occurrence of immediate hypersensitivity (Type I) caused by protein derived from natural rubber can be prevented, on the other hand, in the case of making an impregnated molded article, due to the impregnated molded article Contains a vulcanization accelerator that sometimes causes allergic symptoms of delayed hypersensitivity (Type IV) when in contact with the human body

Method used

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  • Xanthogen compound dispersion, conjugated-diene-based polymer latex composition, and film molded body
  • Xanthogen compound dispersion, conjugated-diene-based polymer latex composition, and film molded body

Examples

Experimental program
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Effect test

Embodiment

[0172] Hereafter, although an Example demonstrates this invention in detail, this invention is not limited to these Examples. In addition, unless otherwise indicated, the following "parts" are based on weight. In addition, various physical properties were measured as follows.

[0173]

[0174] A 2-g sample (weight: X2) was accurately weighed in an aluminum pan (weight: X1), and dried in a hot air dryer at 105° C. for 2 hours. Next, after cooling in a desiccator, the weight (weight: X3) of the whole aluminum pan was measured, and the solid content concentration was calculated from the following formula.

[0175] Solid content concentration (weight %)=(X3-X1)×100 / X2

[0176]

[0177] Carboxyl-modified synthetic polyisoprene constituting the latex of carboxyl-modified synthetic polyisoprene is neutralized and titrated using an aqueous sodium hydroxide solution to determine the number of carboxyl groups in carboxyl-modified synthetic polyisoprene . Next, based on the obtai...

manufacture example 1

[0196] (Manufacture of latex of carboxy-modified synthetic polyisoprene (A-1))

[0197] Synthetic polyisoprene with a weight average molecular weight of 1,300,000 (trade name "NIPOL IR2200L", manufactured by Nippon Zeon Co., Ltd., homopolymer of isoprene, cis bond unit content: 98%) was mixed with cyclohexane, The temperature was raised to 60°C while stirring to dissolve, and a synthetic polyisoprene cyclohexane solution (a) (solid content concentration: 8% by weight) having a viscosity of 12,000 mPa·s measured with a B-type viscometer was prepared.

[0198] On the other hand, water was added to 20 parts of sodium rosinate, and the temperature was raised to 60° C. for dissolution to prepare an anionic surfactant (b) having a concentration of 1.5% by weight.

[0199] Next, the above-mentioned cyclohexane solution (a) and the above-mentioned anionic surfactant aqueous solution (b) were mixed in a weight ratio of 1:1.5 using a mixer (trade name "Multiline mixer MS26-MMR-5.5L" , ...

manufacture example 2

[0205] (Manufacture of latex of carboxy-modified synthetic polyisoprene (A-2))

[0206] Except having changed the usage-amount of methacrylic acid into 5 parts, it carried out similarly to manufacture example 1, and obtained the latex of the carboxyl-modified synthetic polyisoprene (A-2) whose solid content concentration was 55%. The obtained latex of the carboxy group-modified synthetic polyisoprene (A-2) was measured for the modification rate of the monomer having a carboxyl group according to the method described above, and the modification rate was 1.0% by weight.

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Abstract

Provided is a xanthogen compound dispersion obtained by dispersing a xanthogen compoundin water or alcohol, wherein the average particle diameter of the xanthogen compound is 0.001-9 um.

Description

technical field [0001] The present invention relates to film moldings such as a xanthic acid compound dispersion, a conjugated diene polymer latex composition, and a dipped molding. In more detail, the present invention relates to the following xanthic acid compound dispersion, using such A conjugated diene polymer latex composition obtained from an ortho-acid compound dispersion and a film molded article such as a dipped molded article obtained using such a conjugated diene-based polymer latex composition, the above-mentioned xanthic acid compound dispersion is used When used as a vulcanization accelerator for polymers such as conjugated diene polymers, and when used as a film molded product such as a dip molded product, it can suppress the occurrence of symptoms of immediate hypersensitivity (Type I) and also suppress delayed hypersensitivity (Type IV) symptoms occur, and the tear strength of the obtained film molded article such as the dipped molded article is high, the sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08C19/28
CPCC08C19/04C08K5/38C08L21/00C08L7/00C08L15/00C08C19/36C08K2201/005C08L71/02C08L2201/54C08L2203/16C08L2203/30
Inventor 林实纱小出村顺司
Owner ZEON CORP
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