Structured latex particles which are film forming and a process

Details Structured latex particles which are film forming and a process Structured latex particles which are film forming and a process

1984-06-25

1985-08-27

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524458, 524515, C08L 2300

Patent

active

045379165

ABSTRACT:
A process for preparing structured latex particles having a core and shell region wherein said latex particles are film forming at room temperature by adjusting the feed rates of the shell monomer feeds such that as the weight fraction of the shell increases the feed rate of an acrylate and/or monovinyl monomer or extended core monomer feed of monovinyl aromatic monomer is decreased whereby a shell region encapsulates the core region are described. Structured latex particles prepared by the process are also described. Films of the subject structured latex particle where the shell monomer feed is methylmethacrylate or similar high T.sub.g monomer have good film strength. Further, films of the subject structured latex where the shell monomer feed is butyl acrylate or similar monomers having water repellency characteristics have improved corrosion resistant properties.

REFERENCES:
patent: 3254044 (1966-05-01), Gunderman et al.
patent: 3657172 (1972-04-01), Gallagher et al.
patent: 4156669 (1979-05-01), Lee
patent: 4456734 (1984-06-01), Lindner et al.
patent: 4497917 (1985-02-01), Upson et al.

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