Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1989-05-19
1990-06-12
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528326, 528354, 528359, 528370, 528392, 528393, C08G 6914, C08G 6308, C08G 6702
Patent
active
049334301
ABSTRACT:
A polymerization process to produce polyol polymer useful in the formulation of thermoset coatings, including the polymer so produced, is disclosed. The polymers are characterized as having at least one main chain and a plurality of side chains attached thereto. The polymerization process comprises combining in a solvent, at an elevated temperature and for a predetermined period of time, an addition-polymerizable monomer (that is also a free-radical initiator) together with an ethylenically-unsaturated monomer (having a nucleophilic or an electrophilic moiety), to initiate addition copolymerization of the addition-polymerizable monomer with the ethylenically-unsaturated monomer, whereby propagation of the reaction forms the main chain of the polymer. Meanwhile, also combined in the solvent is a polymerizable, carbonyl carbon-containing, ringed molecule--such as a lactone--which, at the elevated temperature, has a ring portion that opens to initiate ionic-copolymerization (of the now-opened ring molecule) with the nucleophilic-containing or electrophilic-containing moiety, whereby propagation of this reaction forms the side chains of the polyol polymer. Termination of the addition-copolymerization and ionic-copolymerization reactions is effected when the polyol polymer attains a predetermined number-average and/or weight-average molecular weight. The polymerization process is characterized in that each of the main-chain and side-chain propagations occurs substantially simultaneously, relative to the other, without using a catalyst.
REFERENCES:
patent: 3169945 (1965-02-01), Hostettler et al.
patent: 3284417 (1966-11-01), Hostettler et al.
patent: 3502623 (1970-03-01), Harworth et al.
patent: 3598791 (1971-08-01), Nieuwenhais et al.
patent: 3655631 (1972-04-01), Fraser et al.
patent: 4506056 (1985-03-01), Gaylor
patent: 4546046 (1985-10-01), Etzell
ASTM D 2794-84, "Resistance of Organic . . .", Aug. 31, 1984, pp. 518-520.
ASTM D 3363-74, "Film Hardress by Pencil Test," Oct. 25, 1974, pp. 670-671.
Brode et al., "Lactone Polymerization and Polymer Properties," 1972, pp. 1109-1144.
Shitoa et al., "Ionic Graft Copolymerization . . .", 1967, pp. 773-790.
Shito et al., "Ionic Gaaft Copolymerization . . .", 1968, pp. 2441-2461.
Shiota et al., "Ionic Graft Copolymerization . . .," 1968, pp. 2463-2480.
Theodore et al., "Modification of Terlic Polymers . . .," 10/82, pp. 77-81.
Encyclopedia of Polymer Sci. & Technology, vol. 11, Interscience Publishers, New York 1969, pp. 98-106.
"Ring Opening Polymerization", vol. 3, by K. J. Ivin and T. Saegusce (Eds.), Elsevier Science Pub. Co., Inc., New York (1984), pp. 461-521, 975, and 978-979.
Kessler Lisa M.
Scholsky Kevin M.
Doody Patrick A.
Michl Paul R.
S. C. Johnson & Son Inc.
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