Modified ion exchange resin and process for producing...

Details Modified ion exchange resin and process for producing... Modified ion exchange resin and process for producing...

2011-06-28

2011-06-28

Mulcahy, Peter D. (Department: 1764)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C521S025000, C568S011000, C568S728000

Reexamination Certificate

active

07968612

ABSTRACT:
There is provided a modified ion exchange resin catalyst which exhibits higher bisphenols selectivity than the conventional modified ion exchange resins in processes wherein bisphenols are produced by reacting a phenolic compound with ketones, and to provide such a process for producing bisphenols. A modified ion exchange resin is characterized in that at least one compound selected from (A) and (B) shown below is ionically bonded to an acidic functional group of an acidic ion exchange resin:(A) Compound represented by Formula (1)and(B) Compound represented by Formula (2)

REFERENCES:
patent: 3992432 (1976-11-01), Napier et al.
patent: 4303551 (1981-12-01), Vaughan
patent: 4423252 (1983-12-01), Maki et al.
patent: 4478956 (1984-10-01), Maki et al.
patent: 5233096 (1993-08-01), Lundquist
patent: 5395857 (1995-03-01), Berg et al.
patent: 5589517 (1996-12-01), Sugawara et al.
patent: 6281400 (2001-08-01), Harmer et al.
patent: 6414200 (2002-07-01), Spivack et al.
patent: 6486364 (2002-11-01), Spivack
patent: 2002/0123534 (2002-09-01), Lundquist
patent: 2002/0123656 (2002-09-01), Spivack
patent: 2004/0127753 (2004-07-01), Iwahara et al.
patent: 2004/0181100 (2004-09-01), Lundquist
patent: 2005/0014910 (2005-01-01), Lepilleur et al.
patent: 2005/0070615 (2005-03-01), Terajima et al.
patent: 45-10337 (1970-04-01), None
patent: 46-19953 (1971-06-01), None
patent: 57-035533 (1982-02-01), None
patent: 57-035533 (1982-02-01), None
patent: 62-178532 (1987-08-01), None
patent: 04-268316 (1992-09-01), None
patent: 05-097741 (1993-04-01), None
patent: 06-320009 (1994-11-01), None
patent: 08-089819 (1996-04-01), None
patent: 08-089819 (1996-04-01), None
patent: 08-187436 (1996-07-01), None
patent: 08-187436 (1996-07-01), None
patent: 10-211433 (1998-08-01), None
patent: 10-211433 (1998-08-01), None
patent: 10-328573 (1998-12-01), None
patent: 2001-122610 (2001-05-01), None
patent: 2002-253971 (2002-09-01), None
patent: 2003-190805 (2003-07-01), None
patent: 2006-340563 (2006-12-01), None
patent: WO-00/00045 (2000-01-01), None
Office Action in Indian U.S. Appl. No. 11/631,262 mailed Sep. 8, 2010.
Office Action in Indian U.S. Appl. No. 868/DELNP/2007 mailed Sep. 8, 2010.

Affiliated with

Also associated with

Rating

Modified ion exchange resin and process for producing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified ion exchange resin and process for producing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified ion exchange resin and process for producing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2679080