밴버리 가공성이나 내수성이 우수한 아크릴 고무 베일

• Main Authors: MASUDA HIROFUMI, KAWANAKA TAKAFUMI
• Format: Patent
• Language: Korean
• Published: 24.02.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

밴버리 가공성이나 내수성이 우수한 아크릴 고무 베일을 제공한다. 본 발명에 따른 아크릴 고무 베일은, 이온 반응성기를 갖는 아크릴 고무로 이루어지고, 메틸에틸케톤 불용해분의 겔량이 15 중량% 이하이고 임의로 20점 측정한 모든 값이 (평균값±5) 중량%의 범위 내이고, pH가 6 이하, 회분량이 0.0005 중량% 이상 0.2 중량% 이하이고 또한 회분 중의 나트륨, 황, 칼슘, 마그네슘, 및 인의 합계량이 90 중량% 이상이다. Provided is an ancrylic rubber bale having excellent Banbury processability and injection moldability. An acrylic rubber bale according to the present invention is composed of acrylic rubber having at least one sort of reactive group selected from the group consisting of carboxyl groups, epoxy groups and chlorine atoms, wherein, the ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is in a range of 1.5 to 3, the gel content of a methyl ethyl ketone-insoluble fraction is 50 wt% or less, the ash content is 0.3 wt% or less, and the total content of sodium, sulfur, calcium, magnesium and phosphorus in the ash is 80 wt% or more.