Polymerization process with reduced cycle time employing polyfun

Details Polymerization process with reduced cycle time employing polyfun Polymerization process with reduced cycle time employing polyfun

1977-01-06

1978-11-14

Lilling, Herbert J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260880R, 526218, 526219, 526228, 526341, 526342, 526345, 526346, C08F 200, C08F 428, C08F 404

Patent

active

041256956

ABSTRACT:
A process for the free radical polymerization of vinyl monomers, including vinyl aromatic monomers, wherein the temperature of the polymerization is progressively increased by at least 30.degree. C during the period of the polymerization a temperature range of from 50.degree. C to 160.degree. C and wherein the final temperature is at least 110.degree. C, the polymerization mass including an initiator sensitive to produce free radicals near or at the low temperature end of the range and an initiator sensitive to produce free radicals near or at the high temperature end of the range. A single entity initiator may contain peroxide functions that are actuated to produce free radicals at each of the temperature extremes of the process.

REFERENCES:
patent: 2656334 (1953-10-01), D'Alelio
patent: 2907756 (1959-10-01), Doak
patent: 3252950 (1966-05-01), Terenzi et al.
patent: 3293233 (1966-12-01), Erchak, Jr. et al.
patent: 3585176 (1971-06-01), Gerritsen et al.
patent: 3649614 (1972-03-01), Sheppard et al.
patent: 3726846 (1973-04-01), Squire et al.
patent: 3726848 (1973-04-01), Squire et al.
patent: 3763129 (1973-10-01), Sheppard et al.
patent: 3817965 (1974-06-01), Mace et al.
patent: 3965145 (1976-06-01), D'Angelo et al.
Noury Chem. Corp., "Polym. of Styrene with Percadox 29" Aug. 1973.
Tulpygina et al., Polymer Science USSR vol. 14, #5 1972, pp. 1143-1153, "Stepwise Radical Polymer & Block Copolymerization Init by Di & Tri Peroxides".

Affiliated with

Also associated with

Rating

Polymerization process with reduced cycle time employing polyfun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymerization process with reduced cycle time employing polyfun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerization process with reduced cycle time employing polyfun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1302650