Microspheres

Details Microspheres Microspheres

2011-06-07

2011-06-07

Jagannathan, Vasu (Department: 1764)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S050000, C521S143000, C521S144000, C521S150000, C523S160000, C523S161000, C162S168200

Reexamination Certificate

active

07956096

ABSTRACT:
The invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 40 to 70 wt % of acrylonitrile, from 5 to 40 wt % of methacrylonitrile, from 10 to 50 wt % of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid and mixtures thereof, and said propellant comprising at least one of methane, ethane, propane, isobutane, n-butane and neo-pentane. The invention further relates to the production and use of the microspheres.

REFERENCES:
patent: 3293114 (1966-12-01), Kenega et al.
patent: 3556934 (1971-01-01), Meyer
patent: 3615972 (1971-10-01), Morehouse, Jr. et al.
patent: 3945956 (1976-03-01), Garner
patent: 4133688 (1979-01-01), Sack
patent: 4287308 (1981-09-01), Nakayama et al.
patent: 5125996 (1992-06-01), Campbell et al.
patent: 5155138 (1992-10-01), Lundqvist
patent: 5536756 (1996-07-01), Kida et al.
patent: 6235394 (2001-05-01), Shimazawa et al.
patent: 6235800 (2001-05-01), Kyuno et al.
patent: 6379497 (2002-04-01), Sandstrom et al.
patent: 6509384 (2003-01-01), Kron et al.
patent: 2001/0051666 (2001-12-01), Kron et al.
patent: 2002/0040088 (2002-04-01), Hauschel et al.
patent: 2003/0114546 (2003-06-01), Satake et al.
patent: 2003/0143399 (2003-07-01), Satake et al.
patent: 2003/0228339 (2003-12-01), El-Nokaly et al.
patent: 2004/0249005 (2004-12-01), Kron et al.
patent: 2006/0000569 (2006-01-01), Kron et al.
patent: 2008/0017338 (2008-01-01), Nordin et al.
patent: 0 348 372 (1989-12-01), None
patent: 0 486 080 (1992-05-01), None
patent: 1 054 034 (2000-11-01), None
patent: 1 059 339 (2000-12-01), None
patent: 1 067 151 (2001-01-01), None
patent: 1 288 272 (2003-03-01), None
patent: 1 408 097 (2004-04-01), None
patent: 1 952 881 (2008-08-01), None
patent: 62-286534 (1987-12-01), None
patent: 2689787 (1997-08-01), None
patent: 2003-105693 (2003-04-01), None
patent: WO 2004/056549 (2004-07-01), None
patent: WO 2004/072160 (2004-08-01), None
patent: WO 2004/113613 (2004-12-01), None
patent: WO 2004/113613 (2004-12-01), None
patent: WO 2006/009643 (2006-01-01), None
patent: WO 2006/009643 (2006-01-01), None
patent: WO 2006/068573 (2006-06-01), None
patent: WO 2006/068574 (2006-06-01), None
patent: WO 2006/083041 (2006-08-01), None
English language translation of Japanese Early-Disclosure Patent Gazette No. 87-286534; Early Disclosure Date Dec. 12, 1987.
English language translation of Japanese Laid-Open No. 2689787; laid open date Dec. 21, 1993.
English language translation of Japanese Laid-Open No. 2003-105693; laid open date Apr. 9, 2003.
Söderberg, Ö et al., “Expandable microspheres in board,” World Pulp & Paper Technology (1995/96) pp. 143-145.
International Search Report for International Application No. PCT/SE2007/050011 dated May 30, 2007.
USPTO Non-Final Office Action dated Jul. 24, 2008 relating to case U.S. Appl. No. 11/303,693 filed Dec. 16, 2005.
USPTO Non-Final Office Action dated Apr. 3, 2009 relating to case U.S. Appl. No. 11/303,693 filed Dec. 16, 2005.
USPTO Final Office Action dated Dec. 22, 2009 relating to case U.S. Appl. No. 11/303,693 filed Dec. 16, 2005.
USPTO Non-Final Office Action dated Oct. 30, 2009 relating to case U.S. Appl. No. 11/704,558 filed Feb. 9, 2007.
USPTO Non-Final Office Action dated Aug. 20, 2010 relating to case U.S. Appl. No. 11/303,693 filed Dec. 16, 2005.
USPTO Non-Final Office Action dated Oct. 4, 2010 relating to case U.S. Appl. No. 11/704,558 filed Feb. 9, 2007.
Communication from a foreign patent office dated Sep. 28, 2009 relating to case U.S. Appl. No. 11/704,558 filed Feb. 9, 2007.
Canadian Intellectual Property Office Jul. 10, 2009 Office Action for Canadian Application No. 2,591,873 corresponding to U.S. Appl. No. 11/303,693.
Tums of the Sea; Britannica Online Encyclopedia: 2002.

Affiliated with

Also associated with

Rating

Microspheres does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microspheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microspheres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2629878