Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-03-26
1994-12-27
Reddick, Judy M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523340, 524547, 524555, 524556, 524558, 524557, 524559, 524560, 524561, 524562, 524563, 524564, 524832, 524833, C08J 300
Patent
active
053767039
ABSTRACT:
Process for lowering the residual monomer content in aqueous plastic dispersions based on polyvinyl esters.
Preparation of vinyl ester polymers or vinyl ester copolymers containing aqueous plastic dispersions having reduced contents of undesired residual vinyl ester monomers, caused by the preparation, and, optionally, acetaldehyde from corresponding starting dispersions, such as are obtainable from ethylenically unsaturated monomers by conventional polymerization or copolymerization methods, by selective alkaline saponification of the residual vinyl ester monomers saponifiable under alkaline conditions in the dispersions and preferably simultaneous removal of the acetaldehyde and unsaponified residual vinyl ester monomers from the aqueous dispersions by distillation.
Use of the plastic dispersions free from residual monomer as binders in low-emission or emission-free aqueous formulations, for example for paints, coatings, plaster mortars, adhesives, paper sizing agents, nonwoven binders, textile auxiliaries, and the like, in particular for applications in indoor areas or in closed rooms.
REFERENCES:
patent: 4032497 (1977-06-01), Kidoh et al.
patent: 4168373 (1979-09-01), Nickerson et al.
patent: 4195168 (1980-03-01), Bobbin
patent: 4217423 (1980-08-01), McClain
patent: 4315843 (1982-02-01), Vidotto et al.
patent: 4497941 (1985-02-01), Aliani et al.
patent: 4542182 (1985-09-01), Schuppiser et al.
patent: 4575531 (1986-03-01), Hoyt et al.
patent: 4584343 (1986-04-01), Lohr et al.
patent: 5200442 (1993-04-01), Schlipf et al.
Copy of Chem. Abstracts vol. 83, No. 18 Nov. 1975 (1 page).
Copy of Derwent Publication & JP-B-45 003 388 (1 page).
Copy of Search Report (3 pages).
Huth Hans-Ullrich
Noelken Ernst
Rinno Helmut
Hoechst AG
Reddick Judy M.
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