MODIFIED NATURAL RUBBER AND METHOD FOR PRODUCING MODIFIED NATURAL RUBBER, AND RUBBER COMPOSITION AND TIRE USING THE SAME
申请人:Bridgestone Corporation
公开号:EP2348055A1
公开(公告)日:2011-07-27
After hydrolyzing a phospholipid bonded to a molecular end of a natural rubber, a compound having a polar group reacting with a hydroxyl group is condensed with a hydroxyl group contained in the phospholipid-hydrolyzed natural rubber to thereby obtain a modified natural rubber in which a polar group is present at a molecular end. The modified natural rubber thus obtained in which a polar group is present at a molecular end is used for a rubber component of a rubber composition, whereby a rubber composition in which carbon black and silica as fillers are bonded to the rubber component to enhance a reinforcing effect and which is excellent in a low hysteresis loss property and abrasion resistance to a large extent is obtained. An enzyme or an alkali is used for hydrolyzing the phospholipid, and a condensing agent is used for condensing the polar group-containing compound.
v. Braun, Chemische Berichte, 1909, vol. 42, p. 2052
作者:v. Braun
DOI:——
日期:——
BCL-2 PROTEIN INHIBITORS
申请人:Recurium IP Holdings, LLC
公开号:EP4107152A1
公开(公告)日:2022-12-28
MODIFIED NATURAL RUBBER, PRODUCTION PROCESS FOR THE SAME AND RUBBER COMPOSITION AND TIRE PREPARED BY USING THE SAME
申请人:Matsui Takahiko
公开号:US20110224365A1
公开(公告)日:2011-09-15
After hydrolyzing a phospholipid bonded to a molecular end of a natural rubber, a compound having a polar group reacting with a hydroxyl group is condensed with a hydroxyl group contained in the phospholipid-hydrolyzed natural rubber to thereby obtain a modified natural rubber in which a polar group is present at a molecular end. The modified natural rubber thus obtained in which a polar group is present at a molecular end is used for a rubber component of a rubber composition, whereby a rubber composition in which carbon black and silica as fillers are bonded to the rubber component to enhance a reinforcing effect and which is excellent in a low hysteresis loss property and abrasion resistance to a large extent is obtained. An enzyme or an alkali is used for hydrolyzing the phospholipid, and a condensing agent is used for condensing the polar group-containing compound.