Chemistry: analytical and immunological testing – Condition responsive control
Patent
1985-08-14
1987-04-14
Marcus, Michael S.
Chemistry: analytical and immunological testing
Condition responsive control
73 54, 264 403, 264 406, 422 62, 422224, 422135, 436 85, 526 60, 526 88, C08F 200, G01N 3500
Patent
active
046578714
ABSTRACT:
A method of mixing polymers, especially rubber by (i) deforming the polymer until it is estimated to attain a first predetermined viscosity, (ii) adding filler and deforming the polymer-and-filler mixture until it is estimated to attain a second predetermined viscosity, (iii) adding oil or plasticiser, and deforming and resulting mixture until it is estimated to attain a third predetermined viscosity, and then (iv) discharging the resulting mixture from the process, where the estimating of each predetermined viscosity is attained by measuring: (1) the mixing torque applied by a mixer during the process at last twice at a fixed mixer-rotor speed and corrected by a reference batch temperature; (2) the rate of change of the torque and (3) the time, or the deforming energy, necessary to reach the torque characteristic of the respective predetermined viscosity. In addition, the ram pressure applied to the mixing chamber is monitored and increased or decreased in response to the cyclic ram movement during mixing.
REFERENCES:
patent: 3053079 (1962-09-01), Miller et al.
patent: 3447201 (1969-06-01), Seanor et al.
patent: 3463462 (1969-08-01), Sarff et al.
patent: 3493345 (1970-02-01), Windley
patent: 3841147 (1974-10-01), Coil et al.
patent: 3888388 (1975-06-01), Mahoney
patent: 4281288 (1981-07-01), Izumi
Freakley Philip K.
Giffin Henry D.
Matthews Bernard R.
LandOfFree
Mixing polymers such as rubber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mixing polymers such as rubber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixing polymers such as rubber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1785549