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...
Patent
1991-09-30
1992-10-20
Welsh, Maurice J.
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...
528 76, 355299, C08G 1810
Patent
active
051570980
ABSTRACT:
An apparatus for cleaning an imaging member has a blade holder and a blade made of a polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.n H where n is from 10 to 60, preferably 55 to 60, and from about 20 to about 95 parts preferably 22 to 26 parts, by weight per 100 parts by weight of said glycol of a diisocyanate selected from the group consisting of diphenylmethane diisocyanates, toluene diisocyanates, naphthalene diisocyanates and blends thereof and a sufficient amount of cross linking agents to provide a crosslinked elastomer, said cross linking agents comprising a mixture of from about 75% to 60% by weight of a diol having the formula HO(R.sub.1)OH where R.sub.1 is a straight or branched chain alkyl group having from 2 to 12 carbon atoms and from about 25% to 40% by weight of a triol having the formula: R'--C--[(OH).sub.a (CH.sub.2 OH).sub.b ] where R' is H, CH.sub.3 or C.sub.2 H.sub.5, a is 0 or 1, b is 2 or 3 and a+b=3.
REFERENCES:
patent: 2901467 (1959-08-01), Croco
patent: 4451622 (1984-05-01), DiDomenico, Jr.
patent: 4519698 (1985-05-01), Kohyama et al.
patent: 4543405 (1985-09-01), Ambrose et al.
patent: 4823161 (1989-04-01), Yamada et al.
patent: 4958197 (1990-09-01), Kinashi et al.
Lindblad Nero R
Martin Crystal A.
Relyea Herbert C.
Schlueter Jr. Edward L.
Sharf Lucille M.
Johnson Rachel
Welsh Maurice J.
Xerox Corporation
LandOfFree
Cleaning apparatus made of polyurethane does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cleaning apparatus made of polyurethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cleaning apparatus made of polyurethane will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-192846