Rubber composition containing vulcanization retarder for insoluble sulfur master batch

PURPOSE: A rubber composition comprising a vulcanization retarding agent is provided to prevent the reduction of insoluble sulfur left in a master batch to be added to a tire rubber composition, to prevent blooming, and to improve storage stability. CONSTITUTION: The rubber composition for an insolu...

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Bibliographic Details
Main Authors SHIN, GYEONG SEOP, KIM, JIN HWA
Format Patent
LanguageEnglish
Korean
Published 02.06.2003
Edition7
Subjects
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Summary:PURPOSE: A rubber composition comprising a vulcanization retarding agent is provided to prevent the reduction of insoluble sulfur left in a master batch to be added to a tire rubber composition, to prevent blooming, and to improve storage stability. CONSTITUTION: The rubber composition for an insoluble sulfur master batch comprises 20 to 30 parts by weight of a base rubber and 50 to 80 parts by weight of insoluble sulfur. The rubber composition is characterized by further comprising 0.1 to 5 parts by weight of a vulcanization retarding agent. The vulcanization retarding agent is selected from the group consisting of N-cyclohexyl thiophthal imide and salicylic acid. 본 발명은 가류지연제를 포함하는 불용성 황 마스터배치(insoluble sulfur master batch)용 고무조성물에 관한 것으로, 더욱 상세하게는 타이어 고무조성물 제조시 컴파운드의 블루밍(blooming) 현상을 방지하고자 사용되는 불용성 황의 잔존율을 유지시키기 위하여 가류지연제를 첨가시키는 것을 특징으로 하는 불용성 황 마스터배치용 고무조성물에 관한 것이다. 이러한 본 발명에 따라 불용성 황 마스터배치를 제조 또는 보관시에 가류지연제인 N-사이클로헥실티오프탈이미드(N-cyclohexylthiophthal imide : PVI) 또는 살리실산(salicylic acid)을 포함시킴으로써, 촉진제에 의해 마스터배치에 함유된 불용성 황의 잔존율이 저하되는 것을 방지할 수 있어 블루밍 현상을 방지하고, 저장안정성을 향상시킬 수 있다.
Bibliography:Application Number: KR20010073742