H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp

Details H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp

1996-08-02

1998-10-20

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526208, 526213, 526217, 526222, 526229, 526265, C08F 210, C08F 206, C08F 2606

Patent

active

058247564

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention resides generally in the field of polymers of vinylpyridines. More particularly, the present invention relates to polymerizations of vinylpyridine monomers to prepare linear vinyl pyridine polymers.
As further background, linear polyvinylpyridines and functionalized derivatives and copolymers thereof are useful in a wide variety of applications. For example, conductive polymers prepared from linear polyvinylpyridine and molecular iodine have been utilized as cathode materials in small solid-state batteries in which long life under low current strain is required, such as batteries used in implantable cardiac pacemakers. See, U.S. Pat. Nos. 3,660,163 (1972) and 3,773,557 (1973). Quaternary salts of polyvinylpyridines (e.g. poly(1-alkylvinylpyridinium halides)) have proven to be good negative electron beam resists for microlithography. See, K. I. Lee et al., Proc. SPIE Int. Soc. Opt. Eng., 333, 15 (1982).
Polyvinylpyridines have been used extensively in the repographic and lithographic fields because of the combination of properties ranging from adhesive to electrical properties. See, U.S. Pat. Nos. 4,041,204 (1977); 3,942,988 (1976); Ger. Offen. 3,040,047 (1981); Japan KOKAI 76 30,741 (1976); U.S. Pat. No. 4,032,339 (1977); Ger. Offen. 2,701,144 (1977); and Japan KOKAI 75 124,648 (1975). Polyvinylpyridines have also found applications in the film and photographic area. For example, solutions of polyvinylpyridine or their quaternary salts form thin films that protect the image surface of instant film prints. See, U.S. Pat. Nos. 2,874,045 (1959); 2,830,900 (1958); and 3,459,580 (1969).
Polyvinylpyridines are compatible with synthetic and natural polymers such as polyolefins (including polypropylene), polyethylene terephthalate, nylon, and cellulose, and thus find applications in plastics, alloys and blends. Fibers incorporating polyvinylpyridines show excellent dyeing and polyvinylpyridiniumphosphate imparts permanent fire retardancy to polyvinylpyridines find uses in the textile industry as well.
Polyvinylpyridines further find utility in the treatment of bleached Kraft paper to increase titanium dioxide retention in pulp slurries, and electroplating applications (in particular quaternary salts), as corrosion inhibitors for metals including iron, aluminium, copper, brass, magnesium and solders, as polymerization inhibitors in Li/TiS.sub.2 current-producing electrochemical cells, as emulsion stabilizers and dispersing agents (in particular acid salt and quaternary salt forms), as flocculating agents (particularly acid salt and quaternary ethylhalide forms), in ion exchange membrane preparation and many other applications. These and other uses for linear polyvinylpyridines are reviewed extensively in product literature available from Reilly Industries, Inc., Indianapolis, Ind. U.S.A., entitled "Linear Polyvinylpyridine: Properties and Applications" (1983 and 1989), to which reference can be made for additional information.
As to their preparation, linear polyvinylpyridines have been prepared by various general polymerization techniques. These have included radiation initiated, Ziegler-Natta initiated, free radical initiated and anionic initiated polymerizations. Radiation initiated polymerizations have usually been used for the preparation of graft copolymers. Ziegler-Natta initiated systems usually do not work well for the vinylpyridine systems.
Free radical (addition) polymerizations of vinylpyridines are common in the literature. Generally, there are three differing types of free radical catalyzed polymerizations, those being solution, emulsion and bulk. They are carried out more commonly using initiators such as benzoyl peroxide, cummene hydroperoxide and azobis (isobutyronitrile). Bulk polymerization of vinylpyridine catalyzed by benzoyl peroxide, hydrogen peroxide and certain other per compounds has been reported (French Pat. 849,126 (1939); CA:35:63586 (1941)), as has suspension polymerization of vinylpyridine catalyzed by water-soluble free radical init

REFERENCES:
patent: 3673168 (1972-06-01), Burke, Jr. et al.
patent: 3828016 (1974-08-01), Bacskai et al.
patent: 3947526 (1976-03-01), Bacskai
patent: 3948960 (1976-04-01), Burke, Jr. et al.
patent: 4824910 (1989-04-01), Lutz
patent: 4957984 (1990-09-01), Itoh et al.
patent: 5086133 (1992-02-01), Itoh et al.
patent: 5403906 (1995-04-01), Seriven et al.

Affiliated with

Also associated with

Rating

H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and H.sub.2 O.sub.2 -catalyzed polymerizations for linear polyvinylp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-245198