Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1993-11-30
1995-04-18
Acquah, Samuel A.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
528272, 528279, 528283, 528296, 528297, 528298, 528299, 528300, 528301, 528302, 528306, 528307, 528308, 5283086, 430109, 430120, 430137, G03G 900
Patent
active
054077729
ABSTRACT:
Unsaturated linear polymers have repeating units of a reaction product of a first monomer, a second monomer, a third monomer and optionally a fourth monomer. The linear polymers have a glass transition temperature ranging from about 52.degree. C. to about 61.degree. C. The first monomer should have a weight average molecular weight less than 200. The second monomer may be a dicarboxylic acid or diester which is different than the third monomer. A concentration of second residues of the polymer, derived from the second monomer, ranges from about 3 wt. % to about 15 wt. %, based on the total weight of the polymer. The third monomer is an aromatic dicarboxylic acid or an ester thereof. In the polymer, a concentration of third residues, derived from the third monomer, ranges from about 40 wt. % to about 55 wt. %, based on the total weight of the polymer. The fourth monomer is a diol having a higher molecular weight than the first monomer. In a process for preparing the inventive polymer, the first, second, third monomer (and optionally a fourth monomer) and/or a catalyst undergo transesterification to form the unsaturated, linear polymer.
REFERENCES:
patent: 3590000 (1971-06-01), Palermiti et al.
patent: 3678024 (1972-07-01), Liu et al.
patent: 3681106 (1972-08-01), Burns et al.
patent: 4289716 (1981-09-01), Voigt
patent: 4533614 (1985-08-01), Fukumoto et al.
patent: 5089547 (1992-02-01), McCabe et al.
patent: 5112715 (1992-05-01), DeMejo et al.
patent: 5145762 (1992-09-01), Grushkin
patent: 5227460 (1993-07-01), Mahabadi et al.
Agur Enno E.
Bayley Robert D.
Fox Carol A.
Hawkins Michael S.
Hoffend Thomas R.
Acquah Samuel A.
Xerox Corporation
LandOfFree
Unsaturated polyesters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Unsaturated polyesters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unsaturated polyesters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-65912