Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-11-20
2009-10-27
Jagannathan, Vasu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S069000, C525S165000, C525S172000, C525S383000, C525S384000, C525S419000, C525S386000, C525S437000, C427S372200, C427S389800
Reexamination Certificate
active
07608670
ABSTRACT:
An improved curable formaldehyde-free binding composition is provided. Such curable composition comprises the reaction product of a polyanhydride and a polyol crosslinker and a lower molecular weight anhydride. Initially, the polyanhydride is modified through reaction with a polyol (e.g., a glycol or an alkanolamine) and subsequently is grafted with the lower molecular weight anhydride (e.g., maleic anhydride) to form a water-soluble or water-dispersible curable reaction product. The composition is well suited for binding fibrous materials (e.g., a mat of glass fibers) or for bonding together non-fibrous materials. The binder composition displays an advantageous viscosity so as to facilitate a flowable application with ease combined with an adequately high molecular weight to satisfactorily undergo service as a binder following curing even when harsh environmental conditions (e.g., hot humid air) are encountered for a prolonged period of time
REFERENCES:
patent: 5143582 (1992-09-01), Arkens et al.
patent: 5318990 (1994-06-01), Strauss
patent: 5340868 (1994-08-01), Strauss et al.
patent: 5427587 (1995-06-01), Arkens et al.
patent: 5661213 (1997-08-01), Arkens et al.
patent: 5698641 (1997-12-01), Gould et al.
patent: 5763524 (1998-06-01), Arkens et al.
patent: 6136916 (2000-10-01), Arkens et al.
patent: 6221973 (2001-04-01), Arkens et al.
patent: 6331350 (2001-12-01), Taylor et al.
patent: 6699945 (2004-03-01), Chen et al.
patent: 6706853 (2004-03-01), Stanssens et al.
patent: 7157524 (2007-01-01), Chen et al.
patent: 2006/0216489 (2006-09-01), Shooshtari et al.
patent: 2006/0217471 (2006-09-01), Shooshtari et al.
patent: 0 583 086 (1997-11-01), None
Arkens, Charles T., et al., “Formaldehyde—Free Crosslinking Binders For Non-Wovens”, Tappi Journal 78 (11):161-168(1995).
Boyle Robert C
Jagannathan Vasu
Johns Manville
Touslee Robert D.
LandOfFree
Binder comprising a crosslinked polyanhydride grafted with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Binder comprising a crosslinked polyanhydride grafted with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Binder comprising a crosslinked polyanhydride grafted with a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4143154