Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1982-06-29
1983-11-01
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523501, 524457, 524458, 524460, 524461, C08L 3300, C08L 3312
Patent
active
044130732
ABSTRACT:
This invention relates to the preparation of stable aqueous dispersions of particles of film-forming polymer, the particles comprising at least one pre-formed polymer and at least one polymer formed in situ ("multi-polymer particles").
The inadequate stability exhibited by many previously known film-forming systems based on multi-polymer particles, especially in the presence of co-solvents, may be overcome by preparing the particles in the presence of a stabilizing compound which is an amphipathic compound with a hydrophilic-lipophilic balance (HLB) value of at least 8 and whose lipophilic portion comprises at least one ethylenic double bond.
The dispersions of this invention are useful as the film-forming components of coating compositions.
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Gibson David V.
Parr Rodney W.
Swalwell John E.
Griffin Ronald W.
ICI Australia Limited
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