Polyurethane elastomers and shaped articles prepared therefrom

Details Polyurethane elastomers and shaped articles prepared therefrom Polyurethane elastomers and shaped articles prepared therefrom

2007-05-08

2007-05-08

Gorr, Rachel (Department: 1711)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S071000

Reexamination Certificate

active

09802760

ABSTRACT:
Disclosed herein are polyurethane elastomers and shaped articles prepared therefrom comprising charge-control agents to provide electrical conductivity to the elastomers, thereby allowing for their use in electrophotographic processes. The elastomers comprise a polyisocyanate prepolymer, a polyether prepolymer, and a hardener mixture comprised of at least one additional polyol and a charge-control agent. When used in an electrophotographic process, the elastomers are capable of exhibiting resistivities of less than 6×109ohm-cm for 600,000 images or more.

REFERENCES:
patent: 2951443 (1960-06-01), Byrne
patent: 2969386 (1961-01-01), McElroy
patent: 3455855 (1969-07-01), Houghton et al.
patent: 3620616 (1971-11-01), Davidson et al.
patent: 3633543 (1972-01-01), Pitasi et al.
patent: 3708482 (1973-01-01), Milan et al.
patent: 3781105 (1973-12-01), Meager
patent: 3858144 (1974-12-01), Bedard et al.
patent: 3920325 (1975-11-01), Swift
patent: 3954332 (1976-05-01), Fisher
patent: 3954333 (1976-05-01), Goel
patent: 3959573 (1976-05-01), Eddy et al.
patent: 3959574 (1976-05-01), Seanor et al.
patent: 4058879 (1977-11-01), Lentz et al.
patent: 4062812 (1977-12-01), Safford et al.
patent: 4116894 (1978-09-01), Lentz et al.
patent: 4390679 (1983-06-01), Weiss et al.
patent: 4476292 (1984-10-01), Ham et al.
patent: 4729925 (1988-03-01), Chen et al.
patent: 4762941 (1988-08-01), Chen et al.
patent: 5212032 (1993-05-01), Wilson et al.
patent: 5259989 (1993-11-01), Schlueter, Jr. et al.
patent: 5286566 (1994-02-01), Schlueter, Jr. et al.
patent: 5286570 (1994-02-01), Schlueter, Jr. et al.
patent: 5321476 (1994-06-01), Gross
patent: 5420677 (1995-05-01), Gross et al.
patent: 5571457 (1996-11-01), Vreeland et al.
patent: 5728496 (1998-03-01), Rimai et al.
patent: 5849399 (1998-12-01), Law et al.
patent: 5897247 (1999-04-01), Tombs et al.
patent: 5968656 (1999-10-01), Ezenyilimba et al.
patent: 604334 (1994-06-01), None

Affiliated with

Also associated with

Rating

Polyurethane elastomers and shaped articles prepared therefrom does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3757477