Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2006-02-27
2008-12-16
Zimmer, Marc (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C521S155000, C521S174000
Reexamination Certificate
active
07465757
ABSTRACT:
The invention relates to a foamed isocyanate-based polymer derived from a reaction mixture comprising an isocyanate, an active hydrogen-containing compound, a blowing agent and a highly branched polysaccharide which is derivatized to provide a hydrophobicity which renders it compatible with a polyether polyol with which the underivatized polysaccharide is incompatible. Further the invention relates to a mix and a process for the production of isocyanate-based polymer. The mix for the production of a foamed isocyanate-based polymer comprises a mixture of the derivatized polysaccharide of the invention and an active hydrogen-containing compound. The process for producing a foamed isocyanate-based polymer comprises the steps of: contacting an isocyanate, an active hydrogen-containing compound, a derivatized highly branched polysaccharide and a blowing agent to form a reaction mixture and expanding the reaction mixture to produce the foamed isocyanate-based polymer. The derivatized highly branched polysaccharide of the invention has an active hydrogen functionality of at least 15 and comprises randomly bonded glucopyranose units, having an average number of 10-100 glucose residues.
REFERENCES:
patent: 2436967 (1948-03-01), Leuck
patent: 2461139 (1949-02-01), Caldwell
patent: 2719179 (1955-09-01), Mora et al.
patent: 3318868 (1967-05-01), Evans et al.
patent: 3766165 (1973-10-01), Rennhard
patent: 3932532 (1976-01-01), Hunter et al.
patent: 3956202 (1976-05-01), Iwasaki
patent: 3973049 (1976-08-01), Furda et al.
patent: 4011389 (1977-03-01), Langdon
patent: 4035235 (1977-07-01), Richards et al.
patent: 4086279 (1978-04-01), Langdon et al.
patent: 4197372 (1980-04-01), Hostettler
patent: 4223129 (1980-09-01), Roth et al.
patent: 4237182 (1980-12-01), Fulmer et al.
patent: 4296213 (1981-10-01), Cuscurida et al.
patent: 4374209 (1983-02-01), Rowlands
patent: 4400475 (1983-08-01), Kennedy
patent: 4404294 (1983-09-01), Wiedermann
patent: 4404295 (1983-09-01), Bernstein et al.
patent: 4417998 (1983-11-01), Kennedy
patent: 4458034 (1984-07-01), Fracalossi et al.
patent: RE31757 (1984-12-01), Kennedy
patent: 4517360 (1985-05-01), Volpenheim
patent: 4518772 (1985-05-01), Volpenheim
patent: 4518778 (1985-05-01), Cuscurida
patent: 4520139 (1985-05-01), Kennedy
patent: 4622233 (1986-11-01), Torres
patent: 4654375 (1987-03-01), Malwitz
patent: 4720544 (1988-01-01), Schouten
patent: 4948596 (1990-08-01), Bunick et al.
patent: 4950743 (1990-08-01), McCurry, Jr. et al.
patent: 4956458 (1990-09-01), Luo et al.
patent: 4965354 (1990-10-01), Yanaki et al.
patent: 5051500 (1991-09-01), Elmore
patent: 5091015 (1992-02-01), Bunick et al.
patent: 5292778 (1994-03-01), Van Veen et al.
patent: 5360845 (1994-11-01), Billmers et al.
patent: 5378491 (1995-01-01), Stanley et al.
patent: 5418301 (1995-05-01), Hult et al.
patent: 5424418 (1995-06-01), Duflot
patent: 5573794 (1996-11-01), Duflot
patent: 5585506 (1996-12-01), Harvey et al.
patent: 5589577 (1996-12-01), Peltonen et al.
patent: 5601863 (1997-02-01), Borden et al.
patent: 5620871 (1997-04-01), Caboche
patent: 5645647 (1997-07-01), Guzek et al.
patent: 5667593 (1997-09-01), Guzek et al.
patent: 5672699 (1997-09-01), Billmers et al.
patent: 5681948 (1997-10-01), Miller et al.
patent: 5767257 (1998-06-01), Schafermeyer et al.
patent: 5773604 (1998-06-01), Lefevre et al.
patent: 5840883 (1998-11-01), Suzuki et al.
patent: 5886161 (1999-03-01), Oka et al.
patent: 5945519 (1999-08-01), Desai et al.
patent: 5977348 (1999-11-01), Harris et al.
patent: 6011092 (2000-01-01), Seppälä et al.
patent: 6037466 (2000-03-01), Maliczyszyn et al.
patent: 6080853 (2000-06-01), Corrigan et al.
patent: 6100391 (2000-08-01), Gibson et al.
patent: 6121440 (2000-09-01), Kenneally et al.
patent: 6204369 (2001-03-01), Roth et al.
patent: 6303777 (2001-10-01), Kao et al.
patent: 6423756 (2002-07-01), Ghobary et al.
patent: 6455512 (2002-09-01), Ward
patent: 6475552 (2002-11-01), Shah et al.
patent: 6495679 (2002-12-01), Tanaka
patent: 6605715 (2003-08-01), Lammers et al.
patent: 6620952 (2003-09-01), Corrigan
patent: 6649667 (2003-11-01), Clatty
patent: 6706877 (2004-03-01), Claverie et al.
patent: 2002/0132870 (2002-09-01), Younes
patent: 2003/0236315 (2003-12-01), Xie et al.
patent: 2003/0236316 (2003-12-01), Heumen et al.
patent: 0 289 461 (1988-11-01), None
patent: 0 416 670 (1991-03-01), None
patent: 1453258 (1976-10-01), None
patent: WO 86/02076 (1986-04-01), None
patent: WO 92/12179 (1992-07-01), None
patent: WO 94/22919 (1994-10-01), None
patent: WO 02/10189 (2002-02-01), None
patent: WO 02/069981 (2002-09-01), None
patent: WO 02/083739 (2002-10-01), None
Donnelly, M.J. et al.,Carbohydrate Polymers, 14 (1991) 221-240 “The Conversion of Polysaccharides into Polyurethanes: A Review”.
Herrington, R. et al., “Flexible Polyurethane Foams”, 1997, Chapter 2.
Knoblock Kenneth
Nichols Charles
O'Connor James
Danisco A/S
Scully , Scott, Murphy & Presser, P.C.
Winkler Melissa
Zimmer Marc
LandOfFree
Foamed isocyanate-based polymer, a mix and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Foamed isocyanate-based polymer, a mix and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foamed isocyanate-based polymer, a mix and process for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4048339