Process for the suspension polymerization of polyvinyl chloride

Details Process for the suspension polymerization of polyvinyl chloride Process for the suspension polymerization of polyvinyl chloride

1979-10-29

1981-08-11

Kight, III, John

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263442, 526910, C08F 218

Patent

active

042835160

ABSTRACT:
The present invention relates to the manufacture of suspension grade PVC and other vinyl chloride resins of superior overall quality, especially in that they possess both high bulk densities and excellent porosities as shown by their fast absorption rates for hot liquid plasticizers. The key feature of the suspension polymerization process involved is the use of a particular combination of two types of suspending agents throughout the process, namely a polyvinyl alcohol resin with a hydrolysis level of about 68 to about 78 percent together with a hydroxypropyl cellulose ether with a molar substitution of between about 2 and about 4.

REFERENCES:
patent: 3929753 (1975-12-01), Itoh
patent: 4000355 (1976-12-01), May
patent: 4143224 (1979-03-01), Klippert et al.
patent: 4208499 (1980-06-01), Maruhashi et al.

Affiliated with

Also associated with

Rating

Process for the suspension polymerization of polyvinyl chloride does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the suspension polymerization of polyvinyl chloride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the suspension polymerization of polyvinyl chloride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1026833