Preparation of insoluble polymer powders which are only...

Details Preparation of insoluble polymer powders which are only... Preparation of insoluble polymer powders which are only...

C - Chemistry, Metallurgy

08

F

402/403, 402/405

C08F 26/10 (2006.01) C08F 226/10 (2006.01)

Patent

CA 1241798

Abstract of the Disclosure: Insoluble polymer powders which are only slightly swellable and are based on N-vinyl- pyrrolidone are prepared by polymerization of N-vinyl- pyrrolidone or a mixture of this with copolymerizable monomers and from 0.1 to 10% by weight, based on the total amount of monomers, of a crosslinking agent in 2 powder bed in the presence of a heat-transfer medium, which is inert to the reactants, and in the absence of oxygen and polymerization initiators, at from 90 to 220°C, while maintaining the powder state, circulating the reaction mass and evaporating the heat-transfer medium from the polymerization zone. The resulting insoluble polymers which are only slightly swellable are used as adsorbents or formulation assistants for fertilizers and crop pro- tection agents.

490882

Affiliated with

Also associated with

Rating

Preparation of insoluble polymer powders which are only... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of insoluble polymer powders which are only..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of insoluble polymer powders which are only... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1170614