Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POLYACRYLIC ACID (SALT), POLYACRYLIC ACID (SALT)-BASED WATER-ABSORBING RESIN, AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/136237
Kind Code:
A1
Abstract:
Provided is a polyacrylic acid (salt), in particular, a polyacrylic acid (salt)-based water-absorbing resin, which contains a method tracer with which the steps which were used for producing the water-absorbing resin can be examined with respect to various troubles that can arise over the water-absorbing resin during the period from the steps for producing the water-absorbing resin to the use and discard thereof by a consumer. The polyacrylic acid (salt)-based water-absorbing resin has a stable carbon isotope ratio, as determined by accelerator mass spectrometry, of less than -20 ‰ and has a radioactive carbon content of 1.0×10-14 or more. The polyacrylic acid (salt)-based water-absorbing resin is characterized by satisfying the following properties (1) to (6): (1) a CRC of 10 [g/g] or more; (2) an AAP of 20 [g/g] or more; (3) an Ext of 35 wt.% or less; (4) a content of residual monomers of 1,000 ppm or less; (5) a PSD in which the proportion of particles having a particle diameter of 150 µm or larger but less than 850 µm is 90 wt.% or more; and (6) an FSR of 0.15 [g/g/s] or more.

Inventors:
MATSUMOTO SATOSHI (JP)
MIURA YUKI (JP)
ISHIZAKI KUNIHIKO (JP)
ADACHI YOSHIFUMI (JP)
Application Number:
PCT/JP2011/060194
Publication Date:
November 03, 2011
Filing Date:
April 26, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
MATSUMOTO SATOSHI (JP)
MIURA YUKI (JP)
ISHIZAKI KUNIHIKO (JP)
ADACHI YOSHIFUMI (JP)
International Classes:
C08F20/06; G01N27/62
Domestic Patent References:
WO2009113679A12009-09-17
WO2005016393A12005-02-24
WO2009005114A12009-01-08
WO2007119528A12007-10-25
WO2007132926A12007-11-22
WO2002042418A22002-05-30
WO2007042494A22007-04-19
WO2010011874A22010-01-28
WO2003008795A12003-01-30
WO2005095320A12005-10-13
WO2007106099A12007-09-20
WO2008023039A12008-02-28
WO2009005114A12009-01-08
WO2010006076A22010-01-14
WO1999042494A11999-08-26
WO1999043720A11999-09-02
WO1999042496A11999-08-26
WO2007121037A22007-10-25
WO2008009843A22008-01-24
WO2008009842A12008-01-24
WO2006082188A12006-08-10
WO2006082189A12006-08-10
WO2006082197A12006-08-10
WO2006111402A22006-10-26
WO2006111403A12006-10-26
WO2006111404A22006-10-26
WO2011040530A12011-04-07
Foreign References:
JP2005521718A2005-07-21
JP2004514431A2004-05-20
JP2004532855A2004-10-28
JP2009067775A2009-04-02
JP2005213225A2005-08-11
US6927268B22005-08-09
US7238743B22007-07-03
US20060053731A12006-03-16
US20060036043A12006-02-16
US6388000B12002-05-14
US6998447B22006-02-14
US20050209411A12005-09-22
US6444744B12002-09-03
US20090113679A12009-05-07
US20090113678A12009-05-07
US20090113671A12009-05-07
US20090113672A12009-05-07
US20090119754A12009-05-07
US20090123197A12009-05-14
US6716894B22004-04-06
US6727345B22004-04-27
US6164455A2000-12-26
US6817557B22004-11-16
US6641064B12003-11-04
US6291635B12001-09-18
EP1949011A12008-07-30
EP0349240A21990-01-03
US5669894A1997-09-23
US20070219521A12007-09-20
US3885155A1975-05-20
US4427884A1984-01-24
US5438194A1995-08-01
US5661299A1997-08-26
JP2010051822W2010-02-08
JP2010051832W2010-02-08
US20070219521A12007-09-20
US20060092271A12006-05-04
US20060092272A12006-05-04
US20060136336A12006-06-22
US20080023039A12008-01-31
US20080023040A12008-01-31
US20070109128A12007-05-17
US20070129570A12007-06-07
US6852517B12005-02-08
JP2007082476A2007-04-05
JP2005102533A2005-04-21
JPH04356436A1992-12-10
US20020090312A12002-07-11
US20080042958A12008-02-21
US20070219391A12007-09-20
EP2057228A12009-05-13
EP1848758A12007-10-31
US4893999A1990-01-16
US6241928B12001-06-05
US20050215734A12005-09-29
US6987151B22006-01-17
US6710141B12004-03-23
US6906159B22005-06-14
US7091253B22006-08-15
JP2000063527A2000-02-29
US6228930B12001-05-08
US6071976A2000-06-06
US6254990B12001-07-03
JP2007283175A2007-11-01
US7473739B22009-01-06
EP0605150A11994-07-06
EP0450923A21991-10-09
EP0812873A11997-12-17
EP0450924A21991-10-09
EP0668080A21995-08-23
JPH07242709A1995-09-19
JPH07224304A1995-08-22
US5409771A1995-04-25
US5597873A1997-01-28
US5385983A1995-01-31
US5610220A1997-03-11
US5633316A1997-05-27
US5674633A1997-10-07
US5462972A1995-10-31
JP2005113117A2005-04-28
EP1641883A12006-04-05
US7157141B22007-01-02
US6605673B12003-08-12
US6620889B12003-09-16
US20050288182A12005-12-29
US20050070671A12005-03-31
US20070106013A12007-05-10
US20060073969A12006-04-06
US7098284B22006-08-29
US7638570B22009-12-29
US20060247351A12006-11-02
US6620899B12003-09-16
US4093776A1978-06-06
US4367323A1983-01-04
US4446261A1984-05-01
US4683274A1987-07-28
US5244735A1993-09-14
JP2009252498A2009-10-29
JP2003002909A2003-01-08
JPH08239423A1996-09-17
US5849405A1998-12-15
US5051259A1991-09-24
Other References:
See also references of EP 2565211A4
MODERN SUPER ABSORBENT POLYMER TECHNOLOGY, 1998, pages 19 - 28
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
Download PDF:
View/Download PDF      PDF Help
Claims:



 
Previous Patent: LEADFRAME, WIRING BOARD, LIGHT EMITTING UNIT, AND ILLUMINATING APPARATUS

Next Patent: POLYACRYLATE (SALT), POLYACRYLATE (SALT) WATER-ABSORBENT RESIN, AND MANUFACTURING METHOD FOR SAME