Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-12-10
1994-03-15
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525309, C08F26710, C08F27102
Patent
active
052946746
ABSTRACT:
Novel N-substituted maleimide homopolymers having a number-average molecular weight ranging from 12,000 to about 100,000 are prepared by anionically polymerizing an N-substituted maleimide monomer, in solvent phase, in the presence of at least one organometallic polymerization initiator which comprises sec-butyllithium, a sodium alcoholate, diphenylmethylpotassium, naphthalenelithium or naphthalenesodium, and novel N-substituted maleimide homopolymers having a polydispersity index ranging from 1.1 to 1.5 are prepared by anionically polymerizing an N-substituted maleimide monomer, in solvent phase, in the presence of at least one alkali metal organometallic polymerization initiator and at least one inorganic or organic salt of an alkali or alkaline earth metal; novel block copolymers include blocks of the above maleimido homopolymers and, e.g., blocks of an acrylic or methacrylic polymer.
REFERENCES:
patent: 5164451 (1992-11-01), Kato et al.
T. Hagiwara et al; J. Polymer Science, Polymer Chem. Ed., 26 1011-1020 (1988).
R. Cubbon 6 419 (1965).
Chemical Abstracts, vol. 77, 1972, p. 11, Abstract No. 20159b.
Kobunshi Kagaku, vol. 29, No. 323, pp. 144-148 (Mar. 1972). "Anionic Polymerization of N-Phenylmaleimide and Its N-4-Substituted Derivatives" by M. Yamada, I. Takase and M. Kobayashi.
Fayt Roger
Teyssie Philippe
Varshney Sunil K.
Atochem
Cheng Wu C.
Schofer Joseph L.
LandOfFree
Heat-resistant maleimido polymers/block copolymers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat-resistant maleimido polymers/block copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-resistant maleimido polymers/block copolymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1536620