NIPPON GOMU KYOKAISHI

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Volume 45, Issue 1

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[title in Japanese]

[in Japanese]

1972Volume 45Issue 1 Pages 1
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.1

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[title in Japanese]

[in Japanese]

1972Volume 45Issue 1 Pages 2
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.2

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[title in Japanese]

[in Japanese]

1972Volume 45Issue 1 Pages 3
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.3

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

1972Volume 45Issue 1 Pages 4-38
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.4

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[title in Japanese]

[in Japanese]

1972Volume 45Issue 1 Pages 39-56
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.39

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MIGRATION OF DYES IN RUBBER SHEETS

STUDIES ON MIGRATION OF DYES IN RUBBER (PART I)

A. Kurihara, S. Sekiguchi, R. Koizumi

1972Volume 45Issue 1 Pages 57-63
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.57

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In the vulcanization of an unvulcanized rubber sheet pasted with a piece of a dyed cloth (cotton), the degree of the migration of the dye on the cloth into the rubber sheet was examined.
Of the various dyes examined, some of the azoic, basic and vat dyes were found to migrate, but the sulphur, reactive and direct dyes were not found to migrate.
The effects of the vulcanization time and the concentration of a dye on a cloth on the migration of the dye into a rubber sheet were examined using New Methylene Blue NX (basic). As a result, the migration was found to occur in a short vulcanization time and the degree of the migration was found to change little even in a prolonged vulcanization time. Further, when a vulcanization time was kept constant, the degree of the migration increased with an increasing concentration of the dye on a cloth.

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THE EFFECT OF OXRGEN ON THE INTERACTION BETWEEN SBR AND HARD CLAY

STUDIES ON CHARACTERIZATIONS OF HARD CLAY (IV)

Hitoshi Kawasaki, Katsuhiko Itadani, Fumio Kusano, Soji Kodama

1972Volume 45Issue 1 Pages 64-69
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.64

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In order to observe the interaction between SBR and hard clay, the fluidity and the filler-polymer gel of SBR loaded with hard clay were studied.
The fluicity of SBR loaded with hard clay dfd not vary with the passage of time when, extruding thespccimen at tcmpcraturcs below 100°C. But at temperatures above 100°C, its ftuidity decreased lincarlywith the passage of time.
When hard clay-loaded SBR which had been allowed to stand in contact with oxygen was treated attempcratures above 100°C, its filler-polymcr gel incrcased rapidly. From thcsc rcsults, it fbllowsthat the interaction between SBR and hard clay occurs in the presence of oxygen.

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[title in Japanese]

1972Volume 45Issue 1 Pages 70-71
Published: January 15, 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.70

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Erratum to : APPLICATION OF POLYTHIODIGLYCOL

1972Volume 45Issue 1 Pages 105
Published: 1972
Released on J-STAGE: October 16, 2009

DOIhttps://doi.org/10.2324/gomu.45.1_105

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