公开(公告)号：EP1382671A4

公开(公告)日：2004-11-17

申请号：EP02720556

申请日：2002-04-22

申请人： IDEMITSU PETROCHEMICAL CO

发明人： NISHIDA TOMOAKI ,  ITO SHINJI ,  MATSUO SHIGERU

IPC分类号： C08J11/18 ,  C12N1/00

CPC分类号： C08J11/18 ,  C08J2333/02 ,  Y02W30/706

摘要： A method of decomposing an unsaturated carboxylic acid copolymer which comprises bonding to a molecular chain thereof a functional group having the property of generating a free radical and then bringing a white-rot fungus or an enzyme excreted from a white-rot fungus into contact with the unsaturated carboxylic acid copolymer. The method enables an unsaturated carboxylic acid copolymer to be decomposed without adversely influencing the natural environment.

摘要翻译： 一种分解不饱和羧酸共聚物的方法，该方法包括在其分子链上键合具有产生自由基性质的官能团，然后使白腐真菌或从白腐真菌中排出的酶与 不饱和羧酸共聚物。 该方法能够使不饱和羧酸共聚物分解而不会对自然环境产生不利影响。

公开(公告)号：EP1083190A4

公开(公告)日：2001-08-08

申请号：EP99909256

申请日：1999-03-19

申请人： IDEMITSU PETROCHEMICAL CO

发明人： MATSUO SHIGERU ,  SEINO YOSHIKATSU

IPC分类号： C08F2/44 ,  C08F20/04 ,  C08F22/02 ,  C11D3/37 ,  B01F17/52 ,  C08G61/02 ,  C11D3/20

CPC分类号： C08F22/02 ,  C08F20/04 ,  C11D3/3757

摘要： An unsaturated carboxylic acid polymer which has a calcium-trapping ability of 150 mg-CaCO3/g or higher, a degree of 28-day biodegradation of 40 % or higher, and a number-average molecular weight of 500 to 1,000,000; a process for producing an unsaturated carboxylic acid polymer which comprises copolymerizing an unsaturated carboxylic acid or a salt thereof with a quinone in the presence of a polymerization initiator; a builder comprising the polymer; a detergent composition comprising the builder and a surfactant; and a dispersant comprising the polymer. The polymer is excellent in the ability to trap calcium ions and biodegradability and is highly useful as a material for a builder.